void CBCGPDialog::EnableExpand	(	HWND	hwndExpandCheckBoxCtrl,
		LPCTSTR	lpszExpandLabel = NULL,
		LPCTSTR	lszCollapseLabel = NULL
	)

Enables expanding and collapsing of the dialog's part.

Parameters

hwndExpandCheckBoxCtrl	Handle of the expand check box control. This check box control will have a special "Expand/Collapse" look.
lpszExpandLabel	The expand label.
lszCollapseLabel	The collapse label.

The expandable area contains some additional controls that initially hidden and appear only when user clicks "Expand" button located in the dialog bottom. The framework resizes dialog window according to the expandable area height.

To add this feature, simply create a new check box specifying start of the expandable area (this check box will be automatically converted to "Expand/Collapse" button) and call EnableExpand method.

Important: you cannot use this feature along with resizable dialogs or property sheets.