CMFCDropDownFrame Class

Article
04/28/2015

Provides drop-down frame window functionality to drop-down toolbars and drop-down toolbar buttons.

class CMFCDropDownFrame : public CMiniFrameWnd

Members

Public Constructors

Name	Description
CMFCDropDownFrame::CMFCDropDownFrame	Default constructor.
CMFCDropDownFrame::~CMFCDropDownFrame	Destructor.

Public Methods

Name	Description
CMFCDropDownFrame::Create	Creates a CMFCDropDownFrame object.
CMFCDropDownFrame::CreateObject	Used by the framework to create a dynamic instance of this class type.
CMFCDropDownFrame::GetParentMenuBar	Retrieves the parent menu bar of the drop-down frame.
CMFCDropDownFrame::GetParentPopupMenu	Retrieves the parent pop-up menu of the drop-down frame.
CMFCDropDownFrame::GetThisClass	Used by the framework to obtain a pointer to the CRuntimeClass object that is associated with this class type.
CMFCDropDownFrame::RecalcLayout	Repositions the drop-down frame.
CMFCDropDownFrame::SetAutoDestroy	Sets whether the child drop-down toolbar window is destroyed automatically.

Remarks

This class is not intended to be used directly from your code.

The framework uses this class to provide frame behavior to the CMFCDropDownToolbar and CMFCDropDownToolbarButton classes. For more information about these classes, see CMFCDropDownToolBar Class and CMFCDropDownToolbarButton Class.

Example

The following example demonstrates how to retrieve a pointer to a CMFCDropDownFrame object from a CFrameWnd class, and how to set the child drop-down toolbar window to be destroyed automatically.

   CFrameWnd* pTopFrame = AFXGetParentFrame(this);
    if (pTopFrame == NULL)
    {
        return FALSE;
    }

    CMFCDropDownFrame* pDropFrame = DYNAMIC_DOWNCAST(CMFCDropDownFrame, pTopFrame);
    pDropFrame->SetAutoDestroy(true);