OH_NativeWindow_GetMetadataValue

ohos_sys::native_window

Function OH_NativeWindow_GetMetadataValue 

Source 
pub unsafe extern "C" fn OH_NativeWindow_GetMetadataValue(
    window: *mut NativeWindow,
    metadataKey: OH_NativeBuffer_MetadataKey,
    size: *mut i32,
    metadata: *mut *mut u8,
) -> i32
Available on crate features native_window and api-12 only.
Expand description

Set the metadata type of the native window.

This interface is a non-thread-safe type interface.

Required System Capabilities: SystemCapability.Graphic.Graphic2D.NativeWindow

§Arguments

  • window - Indicates the pointer to a OHNativeWindow instance.

  • metadataKey - Indicates the metadata type of native window, see OH_NativeBuffer_MetadataKey.

  • size - Indicates the size of a uint8_t vector.

  • metadata - Indicates the pointer to a uint8_t vector.

§Returns

  • [NATIVE_ERROR_OK] 0 - Success. [NATIVE_ERROR_INVALID_ARGUMENTS] 40001000 - window, metadata, or size is NULL. [NATIVE_ERROR_BUFFER_STATE_INVALID] 41207000 - Incorrect metadata state. [NATIVE_ERROR_UNSUPPORTED] 50102000 - Unsupported metadata key.

Available since API-level: 12

Version: 1.0