OH_ArkUI_RenderNodeUtils_GetChildren

arkui_sys::native_render

Function OH_ArkUI_RenderNodeUtils_GetChildren 

Source 
pub unsafe extern "C" fn OH_ArkUI_RenderNodeUtils_GetChildren(
    node: ArkUI_RenderNodeHandle,
    children: *mut *mut ArkUI_RenderNodeHandle,
    count: *mut i32,
) -> i32
Available on crate feature api-20 only.
Expand description

Retrieve all child render nodes of a parent render node. This function populates a list of child render nodes for the specified parent node. The caller is responsible for freeing the allocated child node array.

§Arguments

  • node - Handle to the target parent render node.

  • children - Pointer to an array of child render node handles.

  • count - Pointer to store the number of child nodes retrieved.

§Returns

  • Error code. [ARKUI_ERROR_CODE_NO_ERROR] Success. [ARKUI_ERROR_CODE_PARAM_INVALID] Function parameter exception. [ARKUI_ERROR_CODE_CAPI_INIT_ERROR] if CAPI init error.

Available since API-level: 20