DM_POINTERHITTEST message
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Sent to a window, when pointer input is first detected, in order to determine the most probable input target for Direct Manipulation.
![Important]
Desktop apps should be DPI aware. If your app is not DPI aware, screen coordinates contained in pointer messages and related structures might appear inaccurate due to DPI virtualization. DPI virtualization provides automatic scaling support to applications that are not DPI aware and is active by default (users can turn it off). For more information, see Writing High-DPI Win32 Applications.
#define DM_POINTERHITTEST 0x0250
Parameters
-
wParam
-
Unused.
-
lParam
-
Unused.
Return value
NULL
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 10 [desktop apps only] |
| Minimum supported server |
Windows Server 2016 [desktop apps only] |
| Header |
|