TCM_HITTEST message
Determines which tab, if any, is at a specified screen position. You can send this message explicitly or by using the TabCtrl_HitTest macro.
Parameters
-
wParam
- Must be zero.
-
lParam
-
Pointer to a TCHITTESTINFO structure that specifies the screen position to test.
Return value
Returns the index of the tab, or -1 if no tab is at the specified position.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
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