CMFCStatusBar Class

發行項
07/25/2011

The CMFCStatusBar class implements a status bar similar to the CStatusBar class. However, the CMFCStatusBar class has features not offered by the CStatusBar class, such as the ability to display images, animations, and progress bars; and the ability to respond to mouse double-clicks.

class CMFCStatusBar : public CPane

Members

Public Methods

Name	Description
CMFCStatusBar::CalcFixedLayout	(Overrides CBasePane::CalcFixedLayout.)
CMFCStatusBar::CommandToIndex
CMFCStatusBar::Create	Creates a control bar and attaches it to the CPane object. (Overrides CPane::Create.)
CMFCStatusBar::CreateEx	Creates a control bar and attaches it to the CPane object. (Overrides CPane::CreateEx.)
CMFCStatusBar::DoesAllowDynInsertBefore	Determines whether another pane can be dynamically inserted between this pane and the parent frame. (Overrides CBasePane::DoesAllowDynInsertBefore.)
CMFCStatusBar::EnablePaneDoubleClick	Enables or disables the handling of mouse double-clicks on the status bar.
CMFCStatusBar::EnablePaneProgressBar	Displays a progress bar on the specified pane.
CMFCStatusBar::GetCount	Returns the number of panes on the status bar.
CMFCStatusBar::GetDrawExtendedArea
CMFCStatusBar::GetExtendedArea
CMFCStatusBar::GetItemID
CMFCStatusBar::GetItemRect
CMFCStatusBar::GetPaneInfo
CMFCStatusBar::GetPaneProgress
CMFCStatusBar::GetPaneStyle	Returns the pane style. (Overrides CBasePane::GetPaneStyle.)
CMFCStatusBar::GetPaneText
CMFCStatusBar::GetPaneWidth	Returns the width, in pixels, of the specified pane of the status bar.
CMFCStatusBar::GetTipText	Returns the tool tip text for the specified pane of the status bar.
CMFCStatusBar::InvalidatePaneContent	Invalidates the specified pane and redraws its content.
CMFCStatusBar::PreCreateWindow	Called by the framework before the creation of the Windows window attached to this CWnd object. (Overrides CWnd::PreCreateWindow.)
CMFCStatusBar::SetDrawExtendedArea
CMFCStatusBar::SetIndicators
CMFCStatusBar::SetPaneAnimation	Assigns an animation to the specified pane.
CMFCStatusBar::SetPaneBackgroundColor	Sets the background color for the specified pane of the status bar.
CMFCStatusBar::SetPaneIcon	Sets the indicator icon for the specified pane of the status bar.
CMFCStatusBar::SetPaneInfo
CMFCStatusBar::SetPaneProgress	Sets the current progress of the progress bar for the specified pane of the status bar.
CMFCStatusBar::SetPaneStyle	Sets the style of the pane. (Overrides CBasePane::SetPaneStyle.)
CMFCStatusBar::SetPaneText
CMFCStatusBar::SetPaneTextColor	Sets the text color for the specified pane of the status bar.
CMFCStatusBar::SetPaneWidth	Sets the width in pixels of the specified pane of the status bar.
CMFCStatusBar::SetTipText	Sets the tool tip text for the specified pane of the status bar.

Protected Methods

Name	Description
CMFCStatusBar::OnDrawPane	Called by the framework when it redraws the pane of the status bar.

Remarks

The following diagram shows a figure of the status bar from Status Bar Demo sample application.

CMFCStatusBar Image

Example

The following example demonstrates the local variables that the application uses to call various methods in the CMFCStatusBar class. These variables are declared in StatusBarDemoView.h. The main frame is declared in MainFrm.h, the document is declared in StatusBarDemoDoc.h, and the view is declared in StatusBarDemoView.h. This code snippet is part of the Status Bar Demo sample.

    int         m_nProgressCurr;
    BOOL        m_bInProgress;

    CImageList  m_imlStatusAnimation;
    BOOL        m_bInAnimation;

    CBitmap     m_bmpIcon1;
    CBitmap     m_bmpIcon2;

The following example demonstrates how to get a reference to CMFCStatusBar object by introducing the GetStatusBar method in MainFrm.h and then calling this method from the GetStatusBar method in StatusBarDemoView.h. This code snippet is part of the Status Bar Demo sample.

// in MainFrm.h
public:
    CMFCStatusBar& GetStatusBar ()
    {
        return m_wndStatusBar;
    }


...


    // in StatusBarDemoView.h
    CMFCStatusBar& GetStatusBar () const
    {
        return ((CMainFrame*) AfxGetMainWnd ())->GetStatusBar ();
    }

The following example demonstrates how to call various methods in the CMFCStatusBar class in StatusBarDemoView.cpp. The constants are declared in MainFrm.h. The example shows how to set the icon, set the tooltip text of the status bar pane, display a progress bar on the specified pane, assign an animation to the specified pane, set the text and the width of the status bar pane, and set the current progress indicator of the progress bar for the status bar pane. This code snippet is part of the Status Bar Demo sample.

// in MainFrm.h
const int nStatusIcon = 0;
const int nStatusInfo = 1;
const int nStatusProgress = 2;
const int nStatusLabel = 3;
const int nStatusAnimation = 4;


...


    // in StatusBarDemoView.cpp
    GetStatusBar ().SetPaneIcon (nStatusIcon, m_bmpIcon1);
    GetStatusBar ().SetTipText (nStatusIcon, _T("This is a tooltip"));


...


    GetStatusBar ().EnablePaneProgressBar (nStatusProgress, PROGRESS_MAX);


...


        GetStatusBar ().SetPaneAnimation (nStatusAnimation, NULL);


...


    GetStatusBar ().SetPaneAnimation (nStatusAnimation, m_imlStatusAnimation);
    GetStatusBar ().SetPaneText (nStatusAnimation, _T(""));
    GetStatusBar ().SetPaneWidth (nStatusAnimation, 16);


...


        GetStatusBar ().SetPaneProgress (nStatusProgress, m_nProgressCurr);