Determines where a point lies in a toolbar control.
Syntax
To send this message, call the
SendMessage
function as follows.
|
|
lResult = SendMessage(
| // returns LRESULT in lResult
| | (HWND) hWndControl,
| // handle to destination control
| | (UINT) TB_HITTEST,
| // message ID
| | (WPARAM) wParam,
| // = 0; not used, must be zero | | (LPARAM) lParam
| // = (LPARAM) (LPPOINT) pptHitTest; | |
);
| |
|
Parameters
- wParam
-
Must be zero.
- pptHitTest
-
Pointer to a POINT structure that contains the x-coordinate of the hit test in the x member and the y-coordinate of the hit test in the y member. The coordinates are relative to the toolbar's client area.
Return Value
Returns an integer value. If the return value is zero or a positive value, it is the zero-based index of the nonseparator item in which the point lies. If the return value is negative, the point does not lie within a button. The absolute value of the return value is the index of a separator item or the nearest nonseparator item.
Message Information
| Minimum DLL Version | comctl32.dll version 4.00 or later |
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| Header | commctrl.h |
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| Minimum operating systems |
Windows NT 4.0, Windows 95 |
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