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Gets the total number of regions of the surface that must be updated.
Syntax
HRESULT GetUpdateRectCount(
[out] DWORD *count
);
Parameters
[out] count
Receives the number of regions to update.
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 [UWP apps only] |
| Minimum supported server | Windows Server 2012 R2 [UWP apps only] |
| Target Platform | Windows |
| Header | windows.ui.xaml.media.dxinterop.h |
| DLL | Windows.UI.Xaml.dll |