CBCGPToolbarUndoButton

Detailed Description

The CBCGPToolbarUndoButton class implements the functionality of the split button with a drop-down list. It is possible to select a couple of actions from this list and execute ("undo" or "redo") all of them. If the button itself (left part) is clicked, then only one (last added) action will be executed.

• Add BCGM_ON_BEFORE_SHOW_UNDO_ACTIONS_LIST registered message handler to the toolbar owner class (e.g., CMainFrame).
• In this message handler, call AddUndoAction() to add a new action to the stack.
• Add BCGM_ON_SELECT_UNDO_ACTIONS registered message handler to the toolbar owner class (e.g., CMainFrame).
• In this message handler, call GetSelectedActions() to determine how many actions to execute have been selected by the user.

Inherits CBCGPToolbarMenuButton.

Public Member Functions
	CBCGPToolbarUndoButton	Constructs a CBCGPToolbarUndoButton object.
	AddUndoAction	Adds a new action to the list.
	GetSelectedActions	Returns the number of actions selected by the user.

Static Public Attributes
	m_szDropDown	Specifies dimensions of the undo button's drop-down list. The default value is 160x120.