TCN_SELCHANGING
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4/8/2010
This message notifies a tab control's parent window that the currently selected tab is about to change. It is sent in the form of a WM_NOTIFY message.
Syntax
TCN_SELCHANGE lpnmhdr = (LPNMHDR) lParam;
Parameters
- lpnmhdr
Long pointer to an NMHDR structure. The hwndFrom member is the handle to the tab control. The idFrom member is the child window identifier of the tab control. The code member is TCN_SELCHANGING.
Return Value
TRUE prevents the selection from changing. FALSE allows the selection to change.
Remarks
To determine the currently selected tab, use the TabCtrl_GetCurSel macro.
Requirements
| Header | commctrl.h |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |