interop::GetWindowIdFromWindow function (winrt-microsoft.ui.interop.h)
Gets the WindowId that corresponds to the specified hwnd, if the provided HWND is valid.
Note
This API is declare in the Microsoft.UI.Interop.h header file that's in the Windows App SDK's \include\winrt folder.
C#. For C# desktop application developers, the interop functions in this header are wrapped by the methods of the Microsoft.UI.Win32Interop class.
Syntax
winrt::Microsoft::UI::WindowId GetWindowIdFromWindow(
const HWND & hwnd
);
Parameters
hwnd
Type: const HWND &
The handle of the window for which to get the WindowId.
Return value
Type: WindowId
The identifier that corresponds to the specified hwnd, if the provided hwnd is valid. Otherwise, null.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1809 (with Windows App SDK 1.0 or later) |
| Header | winrt-microsoft.ui.interop.h |