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Sets the current position in the visual tree to the first child of the current paint element, and returns the newly-selected element's properties via the paintElement output parameter.
Syntax
HRESULT MoveToFirstChild(
DWRITE_PAINT_ELEMENT *paintElement,
UINT32 structSize
);
Parameters
paintElement
Type: _Out_writes_bytes_(structSize) DWRITE_PAINT_ELEMENT *
Receives the properties of the newly-selected element.
structSize
Type: UINT32 = sizeof(DWRITE_PAINT_ELEMENT)
Size of the DWRITE_PAINT_ELEMENT structure, in bytes.
Return value
A standard HRESULT error code. The return value is E_INVALIDARG if the current paint element doesn't have any children.
Remarks
You can determine (a priori from its paint type and properties) whether a paint element has children, and how many. For more info, see DWRITE_PAINT_ELEMENT.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1809 (with Windows App SDK 1.2 or later) |
| Header | dwrite_3.h |