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TCN_SELCHANGING

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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.

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 Values

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

OS Versions: Windows CE 1.0 and later.
Header: Commctrl.h.

See Also

TabCtrl_GetCurSel | WM_NOTIFY | NMHDR

Last updated on Wednesday, April 13, 2005

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