NM_RCLICK (tab) notification code
Notifies the parent window of a tab control that the user has clicked the right mouse button within the control. This notification code is sent in the form of a WM_NOTIFY message.
NM_RCLICK lpnmh = (LPNMHDR) lParam;
Pointer to an NMHDR structure that contains additional information about this notification.
Return nonzero to not allow the default processing, or zero to allow the default processing.
|Minimum supported client
||Windows Vista [desktop apps only]
|Minimum supported server
||Windows Server 2003 [desktop apps only]