Note
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Configures the touch injection context for the calling application and initializes the maximum number of simultaneous contacts that the app can inject.
Note InitializeTouchInjection must precede any call to InjectTouchInput.
Syntax
BOOL InitializeTouchInjection(
[in] UINT32 maxCount,
[in] DWORD dwMode
);
Parameters
[in] maxCount
The maximum number of touch contacts.
The maxCount parameter must be greater than 0 and less than or equal to MAX_TOUCH_COUNT (256) as defined in winuser.h.
[in] dwMode
The contact visualization mode.
The dwMode parameter must be TOUCH_FEEDBACK_DEFAULT, TOUCH_FEEDBACK_INDIRECT, or TOUCH_FEEDBACK_NONE.
Return value
If the function succeeds, the return value is TRUE.
If the function fails, the return value is FALSE. To get extended error information, call GetLastError.
Remarks
If TOUCH_FEEDBACK_DEFAULT is set, the injected touch feedback may get suppressed by the end-user settings in the Pen and Touch control panel.
If TOUCH_FEEDBACK_INDIRECT is set, the injected touch feedback overrides the end-user settings in the Pen and Touch control panel.
If TOUCH_FEEDBACK_INDIRECT or TOUCH_FEEDBACK_NONE are set, touch feedback provided by applications and controls may not be affected.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8 [desktop apps only] |
| Minimum supported server | Windows Server 2012 [desktop apps only] |
| Target Platform | Windows |
| Header | winuser.h |
| Library | User32.lib |
| DLL | User32.dll |
| API set | ext-ms-win-rtcore-ntuser-wmpointer-l1-1-0 (introduced in Windows 10, version 10.0.14393) |