void CBCGPCaptionBar::SetButton	(	LPCTSTR	lpszLabel,
		UINT	uiCmdUI,
		BarElementAlignment	btnAlignmnet = ALIGN_LEFT,
		BOOL	bHasDropDownArrow = TRUE
	)

Sets the button on a caption bar.

Call this function to set the button on a caption bar. Any caption bar can contain only one button.

Use RemoveButton() to remove the button. Use EnableButton() to enable and disable the button. The button can be forced to retain the "pressed" state by SetButtonPressed().

Parameters

lpszLabel	Specifies the button's text label.
uiCmdUI	Specifies the button's command ID.
btnAlignmnet	Specifies the button's alignment.
bHasDropDownArrow	Tells whether the button displays a drop down arrow. For the "message bar mode" this flag is (usually) turned off.