Hides or shows the specified button in a toolbar control.
BOOL HideButton(
   int nID,
   BOOL bHide = TRUE 
);
Parameters
- nID 
 Command identifier of the button to hide or show.
- bHide 
 TRUE to hide the button, FALSE to show it.
Return Value
Nonzero if successful; otherwise zero.
Remarks
If you want to change more than one button state, consider calling SetState instead.
Requirements
Header: afxcmn.h