Function OH_NativeDisplayManager_GetDisplaySourceMode 

pub unsafe extern "C" fn OH_NativeDisplayManager_GetDisplaySourceMode(
    displayId: u64,
    sourceMode: *mut NativeDisplayManager_SourceMode,
) -> NativeDisplayManagerResult

Available on crate feature api-20 only.

Get the source mode of the device.

Arguments

• displayId - The display id.

• sourceMode - Indicates the pointer to an NativeDisplayManager_SourceMode object.

Returns

• { DISPLAY_MANAGER_OK } If the operation is successful { DISPLAY_MANAGER_ERROR_SYSTEM_ABNORMAL } If display manager service works abnormally.

Available since API-level: 20