RegisterTouchHitTestingWindow function (winuser.h)

Registers a window to process the

WM_TOUCHHITTESTING notification.

Syntax

BOOL RegisterTouchHitTestingWindow(
  [in] HWND  hwnd,
  [in] ULONG value
);

Parameters

[in] hwnd

The window that receives the WM_TOUCHHITTESTING notification.

[in] value

One of the following values:

• TOUCH_HIT_TESTING_CLIENT: Send WM_TOUCHHITTESTING messages to the target window.
• TOUCH_HIT_TESTING_DEFAULT: Don't send WM_TOUCHHITTESTING messages to the target window but continue to send the messages to child windows.
• TOUCH_HIT_TESTING_NONE: Don't send WM_TOUCHHITTESTING messages to the target window or child windows.

Return value

If this function succeeds, it returns TRUE.

Otherwise, it returns FALSE. To retrieve extended error information, call the GetLastError function.

Requirements

Requirement	Value
Minimum supported client	Windows 8 [desktop apps only]
Minimum supported server	None supported
Target Platform	Windows
Header	winuser.h
Library	User32.lib
DLL	User32.dll

See also

Functions