Presses or releases the specified button in a toolbar control.
BOOL PressButton(
   int nID,
   BOOL bPress = TRUE 
);
Parameters
- [in] nID 
 Command identifier of the button to press or release.
- [in] bPress 
 true to press the specified button; false to release the specified button. The default value is true.
Return Value
true if the method is successful; otherwise, false.
Remarks
If you want to change more than one button state, consider calling SetState instead.
This method sends the TB_PRESSBUTTON message, which is described in the Windows SDK.
Requirements
Header: afxcmn.h