GetDpiFromDpiAwarenessContext function (winuser.h)
Retrieves the DPI from a given DPI_AWARENESS_CONTEXT handle. This enables you to determine the DPI of a thread without needed to examine a window created within that thread.
Syntax
UINT GetDpiFromDpiAwarenessContext(
DPI_AWARENESS_CONTEXT value
);
Parameters
value
The DPI_AWARENESS_CONTEXT handle to examine.
Return value
The DPI value associated with the DPI_AWARENESS_CONTEXT handle.
Remarks
DPI_AWARENESS_CONTEXT handles associated with values of DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE and DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 will return a value of 0 for their DPI. This is because the DPI of a per-monitor-aware window can change, and the actual DPI cannot be returned without the window's HWND.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1803 [desktop apps only] |
| Minimum supported server | Windows Server 2016 [desktop apps only] |
| Target Platform | Windows |
| Header | winuser.h |
| Library | User32.lib |
| DLL | User32.dll |