1# OH_DisplayManager 2 3 4## Overview 5 6The OH_DisplayManager module provides the display management capability. 7 8**System capability**: SystemCapability.WindowManager.WindowManager.Core 9 10**Since**: 12 11 12## Summary 13 14### Files 15 16| Name| Description| 17| -------- | -------- | 18| [oh_display_capture.h](oh__display__capture_8h.md) | Declares the capability to take screenshots.| 19| [oh_display_info.h](oh__display__info_8h.md) | Declares the common enums and definitions of the display.| 20| [oh_display_manager.h](oh__display__manager_8h.md) | Declares the functions for basic display management. You can call the functions to obtain various information about the default display and listen for display status changes, such as rotation, folding, and unfolding.| 21 22 23### Structs 24 25| Name| Description| 26| -------- | -------- | 27| struct [NativeDisplayManager_Rect](_native_display_manager___rect.md) | Describes a rectangle.| 28| struct [NativeDisplayManager_WaterfallDisplayAreaRects](ive_display_manager___waterfall_display_area_rects.md) | Describes the curved area on a waterfall display.| 29| struct [NativeDisplayManager_CutoutInfo](_native_display_manager___cutout_info.md) | Describes the unusable area of a display, including punch hole, notch, and curved area of a waterfall display.| 30| struct [NativeDisplayManager_DisplayHdrFormat](_native_display_manager___display_hdr_format.md) | Describes all the HDR formats supported by a display.| 31| struct [NativeDisplayManager_DisplayColorSpace](_native_display_manager___display_color_space.md) | Describes all the color spaces supported by a display.| 32| struct [NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md) | Encapsulates the information about a display.| 33| struct [NativeDisplayManager_DisplaysInfo](_native_display_manager___displays_info.md) | Encapsulates the information about displays of a device with multiple screens.| 34 35 36### Types 37 38| Name| Description| 39| -------- | -------- | 40| typedef enum [NativeDisplayManager_Rotation](#nativedisplaymanager_rotation) [NativeDisplayManager_Rotation](#nativedisplaymanager_rotation) | Defines an enum for the clockwise rotation angles of a display.| 41| typedef enum [NativeDisplayManager_Orientation](#nativedisplaymanager_orientation) [NativeDisplayManager_Orientation](#nativedisplaymanager_orientation) | Defines an enum for the orientations of a display.| 42| typedef enum [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) | Defines an enum for the status codes returned by the display manager interface.| 43| typedef enum [NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode) [NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode) | Defines an enum for the display modes of a foldable device.| 44| typedef struct [NativeDisplayManager_Rect](_native_display_manager___rect.md) [NativeDisplayManager_Rect](#nativedisplaymanager_rect) | Defines a struct for a rectangle.| 45| typedef struct [NativeDisplayManager_WaterfallDisplayAreaRects](ive_display_manager___waterfall_display_area_rects.md) [NativeDisplayManager_WaterfallDisplayAreaRects](#nativedisplaymanager_waterfalldisplayarearects) | Defines a struct for the curved area on a waterfall display.| 46| typedef struct [NativeDisplayManager_CutoutInfo](_native_display_manager___cutout_info.md) [NativeDisplayManager_CutoutInfo](#nativedisplaymanager_cutoutinfo) | Defines a struct for the unusable area of a display, including punch hole, notch, and curved area of a waterfall display.| 47| typedef enum [NativeDisplayManager_DisplayState](#nativedisplaymanager_displaystate) [NativeDisplayManager_DisplayState](#nativedisplaymanager_displaystate) | Defines an enum for the states of a display.| 48| typedef struct [NativeDisplayManager_DisplayHdrFormat](_native_display_manager___display_hdr_format.md) [NativeDisplayManager_DisplayHdrFormat](#nativedisplaymanager_displayhdrformat) | Defines a struct for all the HDR formats supported by a display.| 49| typedef struct [NativeDisplayManager_DisplayColorSpace](_native_display_manager___display_color_space.md) [NativeDisplayManager_DisplayColorSpace](#nativedisplaymanager_displaycolorspace) | Defines a struct for all the color spaces supported by a display.| 50| typedef struct [NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md) [NativeDisplayManager_DisplayInfo](#nativedisplaymanager_displayinfo) | Defines a struct that encapsulates the information about a display.| 51| typedef struct [NativeDisplayManager_DisplaysInfo](_native_display_manager___displays_info.md) [NativeDisplayManager_DisplaysInfo](#nativedisplaymanager_displaysinfo) | Defines a struct that encapsulates the information about displays of a device with multiple screens.| 52| typedef void(\* [OH_NativeDisplayManager_DisplayChangeCallback](#oh_nativedisplaymanager_displaychangecallback)) (uint64_t displayId) | Defines a callback function to listen for status changes of a display.| 53| typedef void(\* [OH_NativeDisplayManager_FoldDisplayModeChangeCallback](#oh_nativedisplaymanager_folddisplaymodechangecallback)) ([NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode) displayMode) | Defines a callback function to listen for folded/unfolded state changes of a display.| 54 55 56### Enums 57 58| Name| Description| 59| -------- | -------- | 60| [NativeDisplayManager_Rotation](#nativedisplaymanager_rotation-1) { DISPLAY_MANAGER_ROTATION_0 = 0, DISPLAY_MANAGER_ROTATION_90 = 1, DISPLAY_MANAGER_ROTATION_180 = 2, DISPLAY_MANAGER_ROTATION_270 = 3 } | Enumerates the clockwise rotation angles of a display.| 61| [NativeDisplayManager_Orientation](#nativedisplaymanager_orientation-1) {<br>DISPLAY_MANAGER_PORTRAIT = 0, DISPLAY_MANAGER_LANDSCAPE = 1, DISPLAY_MANAGER_PORTRAIT_INVERTED = 2, DISPLAY_MANAGER_LANDSCAPE_INVERTED = 3,<br>DISPLAY_MANAGER_UNKNOWN<br>} | Enumerates the orientations of a display.| 62| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode-1) {<br>DISPLAY_MANAGER_OK = 0, DISPLAY_MANAGER_ERROR_NO_PERMISSION = 201, DISPLAY_MANAGER_ERROR_NOT_SYSTEM_APP = 202, DISPLAY_MANAGER_ERROR_INVALID_PARAM = 401,<br>DISPLAY_MANAGER_ERROR_DEVICE_NOT_SUPPORTED = 801, DISPLAY_MANAGER_ERROR_INVALID_SCREEN = 1400001, DISPLAY_MANAGER_ERROR_INVALID_CALL = 1400002, DISPLAY_MANAGER_ERROR_SYSTEM_ABNORMAL = 1400003<br>} | Enumerates the status codes returned by the display manager interface.| 63| [NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode-1) {<br>DISPLAY_MANAGER_FOLD_DISPLAY_MODE_UNKNOWN = 0, DISPLAY_MANAGER_FOLD_DISPLAY_MODE_FULL = 1, DISPLAY_MANAGER_FOLD_DISPLAY_MODE_MAIN = 2, DISPLAY_MANAGER_FOLD_DISPLAY_MODE_SUB = 3,<br>DISPLAY_MANAGER_FOLD_DISPLAY_MODE_COORDINATION = 4<br>} | Enumerates the display modes of a foldable device.| 64| [NativeDisplayManager_DisplayState](#nativedisplaymanager_displaystate-1) {<br>DISPLAY_MANAGER_DISPLAY_STATE_UNKNOWN = 0, DISPLAY_MANAGER_DISPLAY_STATE_OFF = 1, DISPLAY_MANAGER_DISPLAY_STATE_ON = 2, DISPLAY_MANAGER_DISPLAY_STATE_DOZE = 3,<br>DISPLAY_MANAGER_DISPLAY_STATE_DOZE_SUSPEND = 4, DISPLAY_MANAGER_DISPLAY_STATE_VR = 5, DISPLAY_MANAGER_DISPLAY_STATE_ON_SUSPEND = 6<br>} | Enumerates the states of a display.| 65 66 67### Functions 68 69| Name| Description| 70| -------- | -------- | 71| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_CaptureScreenPixelmap](#oh_nativedisplaymanager_capturescreenpixelmap) (uint32_t displayId, OH_PixelmapNative \*\*pixelMap) | Takes a screenshot of the entire screen. This function can be used only on tablets and 2-in-1 devices. It can be used to capture a full-screen screenshot on the specified display.| 72| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayId](#oh_nativedisplaymanager_getdefaultdisplayid) (uint64_t \*displayId) | Obtains the ID of the default display.| 73| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayWidth](#oh_nativedisplaymanager_getdefaultdisplaywidth) (int32_t \*displayWidth) | Obtains the width of the default display.| 74| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayHeight](#oh_nativedisplaymanager_getdefaultdisplayheight) (int32_t \*displayHeight) | Obtains the height of the default display.| 75| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayRotation](#oh_nativedisplaymanager_getdefaultdisplayrotation) ([NativeDisplayManager_Rotation](#nativedisplaymanager_rotation) \*displayRotation) | Obtains the clockwise rotation angle of the default display.| 76| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayOrientation](#oh_nativedisplaymanager_getdefaultdisplayorientation) ([NativeDisplayManager_Orientation](#nativedisplaymanager_orientation) \*displayOrientation) | Obtains the orientation of the default display.| 77| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayVirtualPixelRatio](#oh_nativedisplaymanager_getdefaultdisplayvirtualpixelratio) (float \*virtualPixels) | Obtains the virtual pixel ratio of the default display.| 78| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayRefreshRate](#oh_nativedisplaymanager_getdefaultdisplayrefreshrate) (uint32_t \*refreshRate) | Obtains the refresh rate of the default display.| 79| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayDensityDpi](#oh_nativedisplaymanager_getdefaultdisplaydensitydpi) (int32_t \*densityDpi) | Obtains the physical pixel density of the default display.| 80| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayDensityPixels](#oh_nativedisplaymanager_getdefaultdisplaydensitypixels) (float \*densityPixels) | Obtains the logical pixel density of the default display.| 81| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayScaledDensity](#oh_nativedisplaymanager_getdefaultdisplayscaleddensity) (float \*scaledDensity) | Obtains the scale factor of fonts displayed on the default display.| 82| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayDensityXdpi](#oh_nativedisplaymanager_getdefaultdisplaydensityxdpi) (float \*xDpi) | Obtains the number of physical pixels per inch on the default display in the X dimension.| 83| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetDefaultDisplayDensityYdpi](#oh_nativedisplaymanager_getdefaultdisplaydensityydpi) (float \*yDpi) | Obtains the number of physical pixels per inch on the default display in the Y dimension.| 84| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_CreateDefaultDisplayCutoutInfo](#oh_nativedisplaymanager_createdefaultdisplaycutoutinfo) ([NativeDisplayManager_CutoutInfo](_native_display_manager___cutout_info.md) \*\*cutoutInfo) | Obtains the unusable area of the default display, including punch hole, notch, and curved area of a waterfall display.| 85| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_DestroyDefaultDisplayCutoutInfo](#oh_nativedisplaymanager_destroydefaultdisplaycutoutinfo) ([NativeDisplayManager_CutoutInfo](_native_display_manager___cutout_info.md) \*cutoutInfo) | Destroys the unusable area of the default display, including punch hole, notch, and curved area of a waterfall display.| 86| bool [OH_NativeDisplayManager_IsFoldable](#oh_nativedisplaymanager_isfoldable) () | Checks whether the current device is foldable.| 87| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_GetFoldDisplayMode](#oh_nativedisplaymanager_getfolddisplaymode) ([NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode) \*displayMode) | Obtains the display mode of the foldable device.| 88| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_RegisterDisplayChangeListener](#oh_nativedisplaymanager_registerdisplaychangelistener) ([OH_NativeDisplayManager_DisplayChangeCallback](#oh_nativedisplaymanager_displaychangecallback) displayChangeCallback, uint32_t \*listenerIndex) | Registers a listener for status changes (such as rotation, refresh rate, DPI, and resolution changes) of the display.| 89| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_UnregisterDisplayChangeListener](#oh_nativedisplaymanager_unregisterdisplaychangelistener) (uint32_t listenerIndex) | Cancels the listening for status changes of the display.| 90| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_RegisterFoldDisplayModeChangeListener](#oh_nativedisplaymanager_registerfolddisplaymodechangelistener) ([OH_NativeDisplayManager_FoldDisplayModeChangeCallback](#oh_nativedisplaymanager_folddisplaymodechangecallback) displayModeChangeCallback, uint32_t \*listenerIndex) | Registers a listener for folded/unfolded state changes of the display.| 91| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_UnregisterFoldDisplayModeChangeListener](#oh_nativedisplaymanager_unregisterfolddisplaymodechangelistener) (uint32_t listenerIndex) | Cancels the listening for folded/unfolded state changes of the display.| 92| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_CreateAllDisplays](#oh_nativedisplaymanager_createalldisplays) ([NativeDisplayManager_DisplaysInfo](_native_display_manager___displays_info.md) \*\*allDisplays) | Obtains the object that contains the information about all displays.| 93| void [OH_NativeDisplayManager_DestroyAllDisplays](#oh_nativedisplaymanager_destroyalldisplays) ([NativeDisplayManager_DisplaysInfo](_native_display_manager___displays_info.md) \*allDisplays) | Destroys the object that contains the information about all displays.| 94| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_CreateDisplayById](#oh_nativedisplaymanager_createdisplaybyid) (uint32_t displayId, [NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md) \*\*displayInfo) | Obtains the object that contains the information about a display.| 95| void [OH_NativeDisplayManager_DestroyDisplay](#oh_nativedisplaymanager_destroydisplay) ([NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md) \*displayInfo) | Destroys the object that contains the information about a display.| 96| [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode) [OH_NativeDisplayManager_CreatePrimaryDisplay](#oh_nativedisplaymanager_createprimarydisplay) ([NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md) \*\*displayInfo) | Obtains the object that contains the information about the primary display. For devices other than 2-in-1 devices, the displayInfo object obtained contains information about the built-in screen. For 2-in-1 devices with an external screen, the displayInfo object obtained contains information about the current primary screen. For 2-in-1 devices without an external screen, the displayInfo object obtained contains information about the built-in screen.| 97 98 99## Type Description 100 101### NativeDisplayManager_DisplayColorSpace 102 103``` 104typedef struct NativeDisplayManager_DisplayColorSpace NativeDisplayManager_DisplayColorSpace 105``` 106 107**Description** 108 109Defines a struct for all the color spaces supported by a display. 110 111**Since**: 14 112 113 114### NativeDisplayManager_DisplayHdrFormat 115 116``` 117typedef struct NativeDisplayManager_DisplayHdrFormat NativeDisplayManager_DisplayHdrFormat 118``` 119 120**Description** 121 122Defines a struct for all the HDR formats supported by a display. 123 124**Since**: 14 125 126 127### NativeDisplayManager_DisplayInfo 128 129``` 130typedef struct NativeDisplayManager_DisplayInfo NativeDisplayManager_DisplayInfo 131``` 132 133**Description** 134 135Defines a struct that encapsulates the information about a display. 136 137**Since**: 14 138 139 140### NativeDisplayManager_DisplaysInfo 141 142``` 143typedef struct NativeDisplayManager_DisplaysInfo NativeDisplayManager_DisplaysInfo 144``` 145 146**Description** 147 148Defines a struct that encapsulates the information about displays of a device with multiple screens. 149 150**Since**: 14 151 152 153### NativeDisplayManager_DisplayState 154 155``` 156typedef enum NativeDisplayManager_DisplayState NativeDisplayManager_DisplayState 157``` 158 159**Description** 160 161Defines an enum for the states of a display. 162 163**Since**: 14 164 165### NativeDisplayManager_CutoutInfo 166 167``` 168typedef struct NativeDisplayManager_CutoutInfo NativeDisplayManager_CutoutInfo 169``` 170 171**Description** 172 173Defines a struct for the unusable area of a display, including punch hole, notch, and curved area of a waterfall display. 174 175**System capability**: SystemCapability.WindowManager.WindowManager.Core 176 177**Since**: 12 178 179 180### NativeDisplayManager_ErrorCode 181 182``` 183typedef enum NativeDisplayManager_ErrorCode NativeDisplayManager_ErrorCode 184``` 185 186**Description** 187 188Defines an enum for the status codes returned by the display manager interface. 189 190**System capability**: SystemCapability.WindowManager.WindowManager.Core 191 192**Since**: 12 193 194 195### NativeDisplayManager_FoldDisplayMode 196 197``` 198typedef enum NativeDisplayManager_FoldDisplayMode NativeDisplayManager_FoldDisplayMode 199``` 200 201**Description** 202 203Defines an enum for the display modes of a foldable device. 204 205**System capability**: SystemCapability.WindowManager.WindowManager.Core 206 207**Since**: 12 208 209 210### NativeDisplayManager_Orientation 211 212``` 213typedef enum NativeDisplayManager_Orientation NativeDisplayManager_Orientation 214``` 215 216**Description** 217 218Defines an enum for the orientations of a display. 219 220**System capability**: SystemCapability.WindowManager.WindowManager.Core 221 222**Since**: 12 223 224 225### NativeDisplayManager_Rect 226 227``` 228typedef struct NativeDisplayManager_Rect NativeDisplayManager_Rect 229``` 230 231**Description** 232 233Defines a struct for a rectangle. 234 235**System capability**: SystemCapability.WindowManager.WindowManager.Core 236 237**Since**: 12 238 239 240### NativeDisplayManager_Rotation 241 242``` 243typedef enum NativeDisplayManager_Rotation NativeDisplayManager_Rotation 244``` 245 246**Description** 247 248Defines an enum for the clockwise rotation angles of a display. 249 250**System capability**: SystemCapability.WindowManager.WindowManager.Core 251 252**Since**: 12 253 254 255### NativeDisplayManager_WaterfallDisplayAreaRects 256 257``` 258typedef struct NativeDisplayManager_WaterfallDisplayAreaRects NativeDisplayManager_WaterfallDisplayAreaRects 259``` 260 261**Description** 262 263Defines a struct for the curved area on a waterfall display. 264 265**System capability**: SystemCapability.WindowManager.WindowManager.Core 266 267**Since**: 12 268 269 270### OH_NativeDisplayManager_DisplayChangeCallback 271 272``` 273typedef void(* OH_NativeDisplayManager_DisplayChangeCallback) (uint64_t displayId) 274``` 275 276**Description** 277 278Defines a callback function to listen for status changes of a display. 279 280**System capability**: SystemCapability.Window.SessionManager 281 282**Since**: 12 283 284**Parameters** 285 286| Name| Description| 287| -------- | -------- | 288| displayId | ID of the display.| 289 290 291### OH_NativeDisplayManager_FoldDisplayModeChangeCallback 292 293``` 294typedef void(* OH_NativeDisplayManager_FoldDisplayModeChangeCallback) (NativeDisplayManager_FoldDisplayMode displayMode) 295``` 296 297**Description** 298 299Defines a callback function to listen for folded/unfolded state changes of a display. 300 301**System capability**: SystemCapability.Window.SessionManager 302 303**Since**: 12 304 305**Parameters** 306 307| Name| Description| 308| -------- | -------- | 309| displayMode | Folded or unfolded state of the display. For details about the available options, see [NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode).| 310 311 312## Enum Description 313 314### NativeDisplayManager_DisplayState 315 316``` 317enum NativeDisplayManager_DisplayState 318``` 319 320**Description** 321 322Enumerates the states of a display. 323 324**Since**: 14 325 326| Value| Description| 327| -------- | -------- | 328| DISPLAY_MANAGER_DISPLAY_STATE_UNKNOWN | Unknown.| 329| DISPLAY_MANAGER_DISPLAY_STATE_OFF | The display is shut down.| 330| DISPLAY_MANAGER_DISPLAY_STATE_ON | The display is powered on.| 331| DISPLAY_MANAGER_DISPLAY_STATE_DOZE | The display is in sleep mode.| 332| DISPLAY_MANAGER_DISPLAY_STATE_DOZE_SUSPEND | The display is in sleep mode, and the CPU is suspended.| 333| DISPLAY_MANAGER_DISPLAY_STATE_VR | The display is in VR mode.| 334| DISPLAY_MANAGER_DISPLAY_STATE_ON_SUSPEND | The display is powered on, and the CPU is suspended.| 335 336### NativeDisplayManager_ErrorCode 337 338``` 339enum NativeDisplayManager_ErrorCode 340``` 341 342**Description** 343 344Enumerates the status codes returned by the display manager interface. 345 346**System capability**: SystemCapability.WindowManager.WindowManager.Core 347 348**Since**: 12 349 350| Value| Description| 351| -------- | -------- | 352| DISPLAY_MANAGER_OK | The operation is successful.| 353| DISPLAY_MANAGER_ERROR_NO_PERMISSION | Permission verification failed. The application does not have the permission to use the API.| 354| DISPLAY_MANAGER_ERROR_NOT_SYSTEM_APP | Permission verification failed. A non-system application attempts to call a system API.| 355| DISPLAY_MANAGER_ERROR_INVALID_PARAM | Parameter check fails.| 356| DISPLAY_MANAGER_ERROR_DEVICE_NOT_SUPPORTED | The device does not support the API.| 357| DISPLAY_MANAGER_ERROR_INVALID_SCREEN | The display is invalid.| 358| DISPLAY_MANAGER_ERROR_INVALID_CALL | The current operation object does not have the operation permission.| 359| DISPLAY_MANAGER_ERROR_SYSTEM_ABNORMAL | The system service is abnormal.| 360 361 362### NativeDisplayManager_FoldDisplayMode 363 364``` 365enum NativeDisplayManager_FoldDisplayMode 366``` 367 368**Description** 369 370Enumerates the display modes of a foldable device. 371 372**System capability**: SystemCapability.WindowManager.WindowManager.Core 373 374**Since**: 12 375 376| Value| Description| 377| -------- | -------- | 378| DISPLAY_MANAGER_FOLD_DISPLAY_MODE_UNKNOWN | The display mode of the device is unknown.| 379| DISPLAY_MANAGER_FOLD_DISPLAY_MODE_FULL | The device is displayed in full screen.| 380| DISPLAY_MANAGER_FOLD_DISPLAY_MODE_MAIN | The main screen of the device is displayed.| 381| DISPLAY_MANAGER_FOLD_DISPLAY_MODE_SUB | The subscreen of the device is displayed.| 382| DISPLAY_MANAGER_FOLD_DISPLAY_MODE_COORDINATION | Both screens of the device are displayed in collaborative mode.| 383 384 385### NativeDisplayManager_Orientation 386 387``` 388enum NativeDisplayManager_Orientation 389``` 390 391**Description** 392 393Enumerates the orientations of a display. 394 395**System capability**: SystemCapability.WindowManager.WindowManager.Core 396 397**Since**: 12 398 399| Value| Description| 400| -------- | -------- | 401| DISPLAY_MANAGER_PORTRAIT | The display is in portrait mode.| 402| DISPLAY_MANAGER_LANDSCAPE | The display is in landscape mode.| 403| DISPLAY_MANAGER_PORTRAIT_INVERTED | The display is in reverse portrait mode.| 404| DISPLAY_MANAGER_LANDSCAPE_INVERTED | The display is in reverse landscape mode.| 405| DISPLAY_MANAGER_UNKNOWN | The screen orientation is unknown.| 406 407 408### NativeDisplayManager_Rotation 409 410``` 411enum NativeDisplayManager_Rotation 412``` 413 414**Description** 415 416Enumerates the clockwise rotation angles of a display. 417 418**System capability**: SystemCapability.WindowManager.WindowManager.Core 419 420**Since**: 12 421 422| Value| Description| 423| -------- | -------- | 424| DISPLAY_MANAGER_ROTATION_0 | The display is rotated clockwise by 0 degrees.| 425| DISPLAY_MANAGER_ROTATION_90 | The display is rotated clockwise by 90 degrees.| 426| DISPLAY_MANAGER_ROTATION_180 | The display is rotated clockwise by 180 degrees.| 427| DISPLAY_MANAGER_ROTATION_270 | The display is rotated clockwise by 270 degrees.| 428 429 430## Function Description 431 432 433### OH_NativeDisplayManager_CaptureScreenPixelmap() 434 435``` 436NativeDisplayManager_ErrorCode OH_NativeDisplayManager_CaptureScreenPixelmap (uint32_t displayId, OH_PixelmapNative **pixelMap ) 437``` 438 439**Description** 440 441Takes a screenshot of the entire screen. This function can be used only on tablets and 2-in-1 devices. It can be used to capture a full-screen screenshot on the specified display. 442 443**Required permissions** 444 445ohos.permission.CUSTOM_SCREEN_CAPTURE 446 447**System capability**: SystemCapability.Window.SessionManager.Core 448 449**Since**: 14 450 451**Parameters** 452 453| Name| Description| 454| -------- | -------- | 455| displayId | ID of the display. The value must be a non-negative integer.| 456| pixelMap | Double pointer to an **OH_PixelmapNative** object, which is the screenshot taken.| 457 458**Returns** 459 460Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 461 462 463### OH_NativeDisplayManager_CreateAllDisplays() 464 465``` 466NativeDisplayManager_ErrorCode OH_NativeDisplayManager_CreateAllDisplays (NativeDisplayManager_DisplaysInfo **allDisplays) 467``` 468 469**Description** 470 471Obtains the object that contains the information about all displays. 472 473**System capability**: SystemCapability.Window.SessionManager.Core 474 475**Since**: 14 476 477**Parameters** 478 479| Name| Description| 480| -------- | -------- | 481| allDisplays | Double pointer to the display information, which is encapsulated in [NativeDisplayManager_DisplaysInfo](_native_display_manager___displays_info.md).| 482 483**Returns** 484 485Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 486 487 488### OH_NativeDisplayManager_CreateDisplayById() 489 490``` 491NativeDisplayManager_ErrorCode OH_NativeDisplayManager_CreateDisplayById (uint32_t displayId, NativeDisplayManager_DisplayInfo **displayInfo ) 492``` 493 494**Description** 495 496Obtains the object that contains the information about a display. 497 498**System capability**: SystemCapability.Window.SessionManager.Core 499 500**Since**: 14 501 502**Parameters** 503 504| Name| Description| 505| -------- | -------- | 506| displayId | ID of the display. The value must be a non-negative integer.| 507| displayInfo | Double pointer to the display information, which is encapsulated in [NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md).| 508 509**Returns** 510 511Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 512 513 514### OH_NativeDisplayManager_CreatePrimaryDisplay() 515 516``` 517NativeDisplayManager_ErrorCode OH_NativeDisplayManager_CreatePrimaryDisplay (NativeDisplayManager_DisplayInfo **displayInfo) 518``` 519 520**Description** 521 522Obtains the object that contains the information about the primary display. For devices other than 2-in-1 devices, the displayInfo object obtained contains information about the built-in screen. For 2-in-1 devices with an external screen, the displayInfo object obtained contains information about the current primary screen. For 2-in-1 devices without an external screen, the displayInfo object obtained contains information about the built-in screen. 523 524**System capability**: SystemCapability.Window.SessionManager.Core 525 526**Since**: 14 527 528**Parameters** 529 530| Name| Description| 531| -------- | -------- | 532| displayInfo | Double pointer to the display information, which is encapsulated in [NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md).| 533 534**Returns** 535 536Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 537 538 539### OH_NativeDisplayManager_DestroyAllDisplays() 540 541``` 542void OH_NativeDisplayManager_DestroyAllDisplays (NativeDisplayManager_DisplaysInfo *allDisplays) 543``` 544 545**Description** 546 547Destroys the object that contains the information about all displays. 548 549**System capability**: SystemCapability.Window.SessionManager.Core 550 551**Since**: 14 552 553**Parameters** 554 555| Name| Description| 556| -------- | -------- | 557| allDisplays | Pointer to the display information object, which is obtained by calling [OH_NativeDisplayManager_CreateAllDisplays](#oh_nativedisplaymanager_createalldisplays). For details, see [NativeDisplayManager_DisplaysInfo](_native_display_manager___displays_info.md).| 558 559 560### OH_NativeDisplayManager_DestroyDisplay() 561 562``` 563void OH_NativeDisplayManager_DestroyDisplay (NativeDisplayManager_DisplayInfo *displayInfo) 564``` 565 566**Description** 567 568Destroys the object that contains the information about a display. 569 570**System capability**: SystemCapability.Window.SessionManager.Core 571 572**Since**: 14 573 574**Parameters** 575 576| Name| Description| 577| -------- | -------- | 578| displayInfo | Pointer to the display information object, which is obtained by calling [OH_NativeDisplayManager_CreateDisplayById](#oh_nativedisplaymanager_createdisplaybyid) or [OH_NativeDisplayManager_CreatePrimaryDisplay](#oh_nativedisplaymanager_createprimarydisplay). For details, see [NativeDisplayManager_DisplayInfo](_native_display_manager___display_info.md).| 579 580### OH_NativeDisplayManager_CreateDefaultDisplayCutoutInfo() 581 582``` 583NativeDisplayManager_ErrorCode OH_NativeDisplayManager_CreateDefaultDisplayCutoutInfo (NativeDisplayManager_CutoutInfo **cutoutInfo) 584``` 585 586**Description** 587 588Obtains the unusable area of the default display, including punch hole, notch, and curved area of a waterfall display. 589 590**System capability**: SystemCapability.WindowManager.WindowManager.Core 591 592**Since**: 12 593 594**Parameters** 595 596| Name| Description| 597| -------- | -------- | 598| cutoutInfo | Double pointer to the unusable area information, which is encapsulated in [NativeDisplayManager_CutoutInfo](_native_display_manager___cutout_info.md).| 599 600**Returns** 601 602Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 603 604 605### OH_NativeDisplayManager_DestroyDefaultDisplayCutoutInfo() 606 607``` 608NativeDisplayManager_ErrorCode OH_NativeDisplayManager_DestroyDefaultDisplayCutoutInfo (NativeDisplayManager_CutoutInfo *cutoutInfo) 609``` 610 611**Description** 612 613Destroys the unusable area of the default display, including punch hole, notch, and curved area of a waterfall display. 614 615**System capability**: SystemCapability.WindowManager.WindowManager.Core 616 617**Since**: 12 618 619**Parameters** 620 621| Name| Description| 622| -------- | -------- | 623| cutoutInfo | Pointer to the unusable area information object, which is obtained by calling [OH_NativeDisplayManager_CreateDefaultDisplayCutoutInfo](#oh_nativedisplaymanager_createdefaultdisplaycutoutinfo). For details, see [NativeDisplayManager_CutoutInfo](_native_display_manager___cutout_info.md).| 624 625**Returns** 626 627Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 628 629 630### OH_NativeDisplayManager_GetDefaultDisplayDensityDpi() 631 632``` 633NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayDensityDpi (int32_t *densityDpi) 634``` 635 636**Description** 637 638Obtains the physical pixel density of the default display. 639 640**System capability**: SystemCapability.WindowManager.WindowManager.Core 641 642**Since**: 12 643 644**Parameters** 645 646| Name| Description| 647| -------- | -------- | 648| densityDpi | Pointer to the physical pixel density, that is, the number of pixels per inch. The value is an integer, in px. The actual value depends on the options provided in device settings. | 649 650**Returns** 651 652Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 653 654 655### OH_NativeDisplayManager_GetDefaultDisplayDensityPixels() 656 657``` 658NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayDensityPixels (float *densityPixels) 659``` 660 661**Description** 662 663Obtains the logical pixel density of the default display. 664 665**System capability**: SystemCapability.WindowManager.WindowManager.Core 666 667**Since**: 12 668 669**Parameters** 670 671| Name| Description| 672| -------- | -------- | 673| densityPixels | Pointer to the logical pixel density, which indicates the scaling coefficient of the physical pixels and logical pixels. The value is a floating point number in the range [0.5, 4.0]. Generally, the value is **1.0** or **3.0**. The actual value depends on the density DPI provided by the device in use. | 674 675**Returns** 676 677Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 678 679 680### OH_NativeDisplayManager_GetDefaultDisplayDensityXdpi() 681 682``` 683NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayDensityXdpi (float *xDpi) 684``` 685 686**Description** 687 688Obtains the number of physical pixels per inch on the default display in the X dimension. 689 690**System capability**: SystemCapability.WindowManager.WindowManager.Core 691 692**Since**: 12 693 694**Parameters** 695 696| Name| Description| 697| -------- | -------- | 698| xDpi | Pointer to the number of physical pixels per inch in the X dimension. The value is a floating point number.| 699 700**Returns** 701 702Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 703 704 705### OH_NativeDisplayManager_GetDefaultDisplayDensityYdpi() 706 707``` 708NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayDensityYdpi (float *yDpi) 709``` 710 711**Description** 712 713Obtains the number of physical pixels per inch on the default display in the Y dimension. 714 715**System capability**: SystemCapability.WindowManager.WindowManager.Core 716 717**Since**: 12 718 719**Parameters** 720 721| Name| Description| 722| -------- | -------- | 723| yDpi | Pointer to the number of physical pixels per inch in the Y dimension. The value is a floating point number.| 724 725**Returns** 726 727Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 728 729 730### OH_NativeDisplayManager_GetDefaultDisplayHeight() 731 732``` 733NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayHeight (int32_t *displayHeight) 734``` 735 736**Description** 737 738Obtains the height of the default display. 739 740**System capability**: SystemCapability.WindowManager.WindowManager.Core 741 742**Since**: 12 743 744**Parameters** 745 746| Name| Description| 747| -------- | -------- | 748| displayHeight | Pointer to the height, in px. The value is an integer.| 749 750**Returns** 751 752Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 753 754 755### OH_NativeDisplayManager_GetDefaultDisplayId() 756 757``` 758NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayId (uint64_t *displayId) 759``` 760 761**Description** 762 763Obtains the ID of the default display. 764 765**System capability**: SystemCapability.WindowManager.WindowManager.Core 766 767**Since**: 12 768 769**Parameters** 770 771| Name| Description| 772| -------- | -------- | 773| displayId | Pointer to the display ID. The value is a non-negative integer.| 774 775**Returns** 776 777Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 778 779 780### OH_NativeDisplayManager_GetDefaultDisplayOrientation() 781 782``` 783NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayOrientation (NativeDisplayManager_Orientation *displayOrientation) 784``` 785 786**Description** 787 788Obtains the orientation of the default display. 789 790**System capability**: SystemCapability.WindowManager.WindowManager.Core 791 792**Since**: 12 793 794**Parameters** 795 796| Name| Description| 797| -------- | -------- | 798| displayOrientation | Pointer to the orientation. For details about the available options, see [NativeDisplayManager_Orientation](#nativedisplaymanager_orientation).| 799 800**Returns** 801 802Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 803 804 805### OH_NativeDisplayManager_GetDefaultDisplayRefreshRate() 806 807``` 808NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayRefreshRate (uint32_t *refreshRate) 809``` 810 811**Description** 812 813Obtains the refresh rate of the default display. 814 815**System capability**: SystemCapability.WindowManager.WindowManager.Core 816 817**Since**: 12 818 819**Parameters** 820 821| Name| Description| 822| -------- | -------- | 823| refreshRate | Pointer to the refresh rate. The value is an integer, in Hz.| 824 825**Returns** 826 827Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 828 829 830### OH_NativeDisplayManager_GetDefaultDisplayRotation() 831 832``` 833NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayRotation (NativeDisplayManager_Rotation *displayRotation) 834``` 835 836**Description** 837 838Obtains the clockwise rotation angle of the default display. 839 840**System capability**: SystemCapability.WindowManager.WindowManager.Core 841 842**Since**: 12 843 844**Parameters** 845 846| Name| Description| 847| -------- | -------- | 848| displayRotation | Pointer to the clockwise rotation angle. For details about the available options, see [NativeDisplayManager_Rotation](#nativedisplaymanager_rotation).| 849 850**Returns** 851 852Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 853 854 855### OH_NativeDisplayManager_GetDefaultDisplayScaledDensity() 856 857``` 858NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayScaledDensity (float *scaledDensity) 859``` 860 861**Description** 862 863Obtains the scale factor of fonts displayed on the default display. 864 865**System capability**: SystemCapability.WindowManager.WindowManager.Core 866 867**Since**: 12 868 869**Parameters** 870 871| Name| Description| 872| -------- | -------- | 873| scaledDensity | Pointer to the scale factor. The value is a floating-point number, and it is usually the same as that of **densityPixels**.| 874 875**Returns** 876 877Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 878 879 880### OH_NativeDisplayManager_GetDefaultDisplayVirtualPixelRatio() 881 882``` 883NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayVirtualPixelRatio (float *virtualPixels) 884``` 885 886**Description** 887 888Obtains the virtual pixel ratio of the default display. 889 890**System capability**: SystemCapability.WindowManager.WindowManager.Core 891 892**Since**: 12 893 894**Parameters** 895 896| Name| Description| 897| -------- | -------- | 898| virtualPixels | Pointer to the virtual pixel ratio. The value is a floating-point number, and it is usually the same as that of **densityPixels**.| 899 900**Returns** 901 902Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 903 904 905### OH_NativeDisplayManager_GetDefaultDisplayWidth() 906 907``` 908NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetDefaultDisplayWidth (int32_t *displayWidth) 909``` 910 911**Description** 912 913Obtains the width of the default display. 914 915**System capability**: SystemCapability.WindowManager.WindowManager.Core 916 917**Since**: 12 918 919**Parameters** 920 921| Name| Description| 922| -------- | -------- | 923| displayWidth | Pointer to the width, in px. The value is an integer.| 924 925**Returns** 926 927Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 928 929 930### OH_NativeDisplayManager_GetFoldDisplayMode() 931 932``` 933NativeDisplayManager_ErrorCode OH_NativeDisplayManager_GetFoldDisplayMode (NativeDisplayManager_FoldDisplayMode *displayMode) 934``` 935 936**Description** 937 938Obtains the display mode of the foldable device. 939 940**System capability**: SystemCapability.Window.SessionManager 941 942**Since**: 12 943 944**Parameters** 945 946| Name| Description| 947| -------- | -------- | 948| displayMode | Pointer to the display mode. For details about the available options, see [NativeDisplayManager_FoldDisplayMode](#nativedisplaymanager_folddisplaymode).| 949 950**Returns** 951 952Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 953 954 955### OH_NativeDisplayManager_IsFoldable() 956 957``` 958bool OH_NativeDisplayManager_IsFoldable () 959``` 960 961**Description** 962 963Checks whether the current device is foldable. 964 965**System capability**: SystemCapability.WindowManager.WindowManager.Core 966 967**Since**: 12 968 969**Returns** 970 971Returns the check result. The value **true** means that the device is foldable, and **false** means the opposite. 972 973 974### OH_NativeDisplayManager_RegisterDisplayChangeListener() 975 976``` 977NativeDisplayManager_ErrorCode OH_NativeDisplayManager_RegisterDisplayChangeListener (OH_NativeDisplayManager_DisplayChangeCallback displayChangeCallback, uint32_t *listenerIndex ) 978``` 979 980**Description** 981 982Registers a listener for status changes (such as rotation, refresh rate, DPI, and resolution changes) of the display. 983 984**System capability**: SystemCapability.WindowManager.WindowManager.Core 985 986**Since**: 12 987 988**Parameters** 989 990| Name| Description| 991| -------- | -------- | 992| displayChangeCallback | Callback function triggered when the display status is changed. For details, see [OH_NativeDisplayManager_DisplayChangeCallback](#oh_nativedisplaymanager_displaychangecallback).| 993| listenerIndex | Pointer to the index of the listener registered. It can be used as an input parameter of [OH_NativeDisplayManager_UnregisterDisplayChangeListener](#oh_nativedisplaymanager_unregisterdisplaychangelistener).| 994 995**Returns** 996 997Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 998 999 1000### OH_NativeDisplayManager_RegisterFoldDisplayModeChangeListener() 1001 1002``` 1003NativeDisplayManager_ErrorCode OH_NativeDisplayManager_RegisterFoldDisplayModeChangeListener (OH_NativeDisplayManager_FoldDisplayModeChangeCallback displayModeChangeCallback, uint32_t *listenerIndex ) 1004``` 1005 1006**Description** 1007 1008Registers a listener for folded/unfolded state changes of the display. 1009 1010**System capability**: SystemCapability.Window.SessionManager 1011 1012**Since**: 12 1013 1014**Parameters** 1015 1016| Name| Description| 1017| -------- | -------- | 1018| displayModeChangeCallback | Callback function triggered when the folded/unfolded state of the display is changed. For details, see [OH_NativeDisplayManager_FoldDisplayModeChangeCallback](#oh_nativedisplaymanager_folddisplaymodechangecallback).| 1019| listenerIndex | Pointer to the index of the listener registered. It can be used as an input parameter of [OH_NativeDisplayManager_UnregisterFoldDisplayModeChangeListener](#oh_nativedisplaymanager_unregisterfolddisplaymodechangelistener).| 1020 1021**Returns** 1022 1023Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 1024 1025 1026### OH_NativeDisplayManager_UnregisterDisplayChangeListener() 1027 1028``` 1029NativeDisplayManager_ErrorCode OH_NativeDisplayManager_UnregisterDisplayChangeListener (uint32_t listenerIndex) 1030``` 1031 1032**Description** 1033 1034Cancels the listening for status changes of the display. 1035 1036**System capability**: SystemCapability.WindowManager.WindowManager.Core 1037 1038**Since**: 12 1039 1040**Parameters** 1041 1042| Name| Description| 1043| -------- | -------- | 1044| listenerIndex | Index of the listener returned when [OH_NativeDisplayManager_RegisterDisplayChangeListener](#oh_nativedisplaymanager_registerdisplaychangelistener) is called.| 1045 1046**Returns** 1047 1048Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 1049 1050 1051### OH_NativeDisplayManager_UnregisterFoldDisplayModeChangeListener() 1052 1053``` 1054NativeDisplayManager_ErrorCode OH_NativeDisplayManager_UnregisterFoldDisplayModeChangeListener (uint32_t listenerIndex) 1055``` 1056 1057**Description** 1058 1059Cancels the listening for folded/unfolded state changes of the display. 1060 1061**System capability**: SystemCapability.Window.SessionManager 1062 1063**Since**: 12 1064 1065**Parameters** 1066 1067| Name| Description| 1068| -------- | -------- | 1069| listenerIndex | Index of the listener returned when [OH_NativeDisplayManager_RegisterFoldDisplayModeChangeListener](#oh_nativedisplaymanager_registerfolddisplaymodechangelistener) is called.| 1070 1071**Returns** 1072 1073Returns a status code defined in [NativeDisplayManager_ErrorCode](#nativedisplaymanager_errorcode). 1074