OH_ArkUI_RegisterDrawCallbackOnNodeHandle

arkui_sys::native_node

Function OH_ArkUI_RegisterDrawCallbackOnNodeHandle 

Source 
pub unsafe extern "C" fn OH_ArkUI_RegisterDrawCallbackOnNodeHandle(
    node: ArkUI_NodeHandle,
    userData: *mut c_void,
    onDrawCompleted: Option<unsafe extern "C" fn(userData: *mut c_void)>,
) -> i32
Available on crate features api-12 and api-15 only.
Expand description

Registers a callback for node when draw is completed.

§Arguments

  • node - Indicates the target node.

  • userData - Indicates the custom data used in onDrawCompleted callback function.

  • onDrawCompleted - Indicates the function when draw completed is callback.

§Returns

  • error code [ARKUI_ERROR_CODE_NO_ERROR] if the operation is successful. [ARKUI_ERROR_CODE_PARAM_INVALID] if a parameter is incorrect.

Available since API-level: 15