TCN_SELCHANGING notification code
Notifies a tab control's parent window that the currently selected tab is about to change. This notification code is sent in the form of a WM_NOTIFY message.
TCN_SELCHANGING
lpnmhdr = (LPNMHDR) lParam;
Parameters
-
lParam
-
Pointer to an NMHDR structure that contains additional information about this notification.
Return value
Returns TRUE to prevent the selection from changing, or FALSE to allow the selection to change.
Remarks
To determine the currently selected tab, use the TabCtrl_GetCurSel macro.
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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