TCN_SELCHANGE notification code
Notifies a tab control's parent window that the currently selected tab has changed. This notification code is sent in the form of a WM_NOTIFY message.
Pointer to an NMHDR structure that contains additional information about this notification.
No return value.
To determine the currently selected tab, use the TabCtrl_GetCurSel macro.
Minimum supported client
|Windows 2000 Professional [desktop apps only]|
Minimum supported server
|Windows 2000 Server [desktop apps only]|