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Introduction

The article introduces an enhanced version of the standard MFC status bar control. The new class should enable you to easily add/remove panes to/from the application's status bar, on-the-fly. The status bar's panes may contain almost any control you need: buttons, edits, animations, progress bars, and etc.

The class is partially based on the status bar presented in the freeware version of the Prof-UIS library available here.

How to use it

The CExtStatusControlBar class is simple to use. To add it to your project, please follow the steps below:

1. Put its source files (CExtStatusControlBar.cpp and CExtStatusControlBar.h) into the proper folder and add their file names to your Visual Studio project.
2. Include its header to the appropriate header file. If you plan to use CExtStatusControlBar in several places of your application, it's reasonable to add it to your stdafx.h file.

   #include "CExtStatusControlBar.h"

3. If you used CStatusBar, you should replace it with CExtStatusControlBar everywhere in the project.

   CExtStatusControlBar  m_wndStatusBar;

Sample

The StatusPanes sample project shows how to use the class in practice (including how to place controls into the control bar's panes).

List of methods

• BOOL AddPane(UINT nID, int nIndex)

  Inserts a new pane into the status bar.

  Parameters

  nID

  ID of the pane to be added.

  nIndex

  The index of the newly created pane.

  Return Value

  Nonzero if successful.

  ---

• BOOL RemovePane(UINT nID)

  Deletes a pane from the status bar.

  Parameters

  nID

  ID of the pane to be deleted.

  Return Value

  Nonzero if successful.

  ---

• BOOL AddPaneControl(CWnd* pWnd, UINT nID, BOOL bAutoDestroy)

  Inserts a control into a specified pane.

  Parameters

  pWnd

  Pointer to the control to be added.

  nID

  ID of the target pane.

  bAutoDestroy

  Specifies whether the control should be destroyed when the pane is removed.

  Return Value

  Nonzero if successful; otherwise zero.

  ---

• BOOL AddPaneControl(HWND hWnd, UINT nID, BOOL bAutoDestroy)

  Inserts a control into a specified pane.

  Parameters

  hWnd

  Handle to the control to be added.

  nID

  ID of the target pane.

  bAutoDestroy

  Specifies whether the control should be destroyed when the pane is removed.

  Return Value

  Nonzero if successful.

  ---

• void DisableControl( int nIndex, BOOL bDisable=TRUE)

  Disables the control at a specified pane.

  Parameters

  nIndex

  Index of the pane.

  bDisable

  Flag specifying that the control is enabled if it is set to TRUE.

   

  ---

• int GetPanesCount() const

  Retrieves the current number of panes in the status bar.

  ---

• void SetPaneWidth(int nIndex, int nWidth)

  Sets a width in pixels for a specified pane.

  Parameters

  nIndex

  Index of the pane.

  nStyle

  Width to be set.

  ---

• void SetPaneInfo(int nIndex, UINT nID, UINT nStyle, int cxWidth)

  Sets the specified pane to a new ID, style and width.

  Parameters

  nIndex

  Index of the pane whose style is to be set.

  nID

  New ID for the pane.

  nStyle

  New style for the pane.

  cxWidth

  New width for the pane.

  ---

• void SetPaneStyle(int nIndex, UINT nStyle)

  Sets the style of a status bar's pane. A pane's style determines how the pane appears.

  Parameters

  nIndex

  Index of the pane whose style is to be set.

  nStyle

  Style of the pane whose style is to be set.

Copyright

You can use these sources for absolutely free.

Reporting bugs

Your questions, suggestions and bug reports may be posted either to the forum below or to the forum at the Prof-UIS website.

You must Sign In to use this message board.

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tank you mrshcom 9:29 17 Sep '09   mohammad reza\computer engineer\Mashhad\shahrivar88 tankyou Sign In·View Thread·PermaLink Status bar with custom controls, how does it work Moak 5:01 21 Jul '09   Thanks for the status bar control, Dmitriy! What I missed in the article was how it works, I was curious how you display more than simple text in a status bar. From looking into the source code the status bar itself stays "empty" and you attach child controls to it. When the status bar is resized child controls are re-aranged within the visible status bar area, done in RepositionControls(). In the main application these controls must be created with the status bar as parent, see CChildFormView::OnAddPane(). A small suggestion, the status bar could take care of setting the correct parent with CWnd::SetParent() and maybe takes ownership of created objects (calling DestroyWindow and delete in destructor). As an alternative a simple status bar could override CStatusBar::DrawItem. Cheers /M My webchat in Europe Sign In·View Thread·PermaLink How to display color( type COLORREF ) on Status bar ? huutho411 23:10 16 Jun '08   I've a prolem. I wish display color on statusbar, but i don't know how to do that. Any suggestions would be of great help. Thanks Sign In·View Thread·PermaLink 2.00/5 Re: How to display color( type COLORREF ) on Status bar ? Dmitriy Yakovlev 4:22 17 Jun '08   In the CExtStatusControlBar implementation in this article you cannot directly change the panes background color. You need to either repaint the pane yourself or insert some control, i.e. CStatic with changed background color. But if this control is used as a part of the Prof-UIS library you should know that in version 2.64 we added GetPaneBkColor()/SetPaneBkColor(), GetPaneTextColor()/SetPaneTextColor(), and OnQueryPaneBackColor() methods to the CExtStatusControlBar, which allows you to get and set colors of the background and text of a pane in the status bar. You can download the latest free version of the Prof-UIS library from the corresponding web-site www.prof-uis.com Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink Question ugly beast 16:35 12 Jun '08   I have quick question (sorry if it is stupid): Why I can only add 1 kind of control to ExtStatusControlBar??? For me it doesn't make sense at all. Sign In·View Thread·PermaLink Re: Question Dmitriy Yakovlev 1:51 13 Jun '08   Don't worry. It's just a sample application restriction. You can freely add several controls of any kind. Just try it. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink Problem with status bar mnupadhya 21:51 7 Aug '07   Hi, As said in my previous post I am trying to set an image as background to my status bar. I am painting the image by handling NCPAINT in the status bar class, but the status bar alternates between the image and the normal background whenever I move the window around. Can somebody please suggest any other way by which I can achieve the image backgroun d for my status bar. Thanks in advance. Regards, Hari Sign In·View Thread·PermaLink Re: Problem with status bar Dmitriy Yakovlev 5:42 30 Aug '07   Did you handle the WM_ERASEBKGND message? Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink How to hide a control? John Tan Jin Kiat 2:33 9 Jul '07   Hi, I'm using this source code to add a marquee progressbar which will only appear when my app is busy. However, when it is in hidden state, the progress bar will appear whenever I am resizing the window. As I implemented the ON_UPDATE_COMMAND_UI_RANGE for this control to force it to hide whenever it is not needed, it will disappear when I release the mouse to stop resizing the window. Does anyone have any idea not to make it appear at all? I was thinking of removing the control entirely whenever it is not needed and replace it with a dummy blank control. However, I think this will make the app unstable because at the time when the control is being replaced, there will be a short moment of the control being removed. At that point of time, some other threads could be writing text on other status panes and this could crash the app is the update is on the highest index pane. This is unless, I add additional measures to protect this from happening by using mutex, etc. It will be a painful process just to hide the control. Any advice would be appreciated. Thanks John Sign In·View Thread·PermaLink Re: How to hide a control? Dmitriy Yakovlev 2:58 9 Jul '07   Why do not use RemovePane and AddPane methods? The RemovePane method will not destroy your control if you will use the SetPaneControl method with bAutoDestroy parameter set to false. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink Re: How to hide a control? John Tan Jin Kiat 18:48 12 Jul '07   Thank you Dmitriy. It worked. Also, in addition, I will always use CommandToID to always get the correct index even if it is misaligned. Sign In·View Thread·PermaLink 1.00/5 Re: How to hide a control? Dmitriy Yakovlev 23:38 16 Jul '07   Yes, this is right approach. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink Setting Background Image for Status Bar mnupadhya 2:39 22 Jun '07   Hi, Has anyone tried setting a background image for a status bar? I have tried various ways but not able to achieve that. Any suggestions would be of great help. Thanks in advance, Narahari Sign In·View Thread·PermaLink Re: Setting Background Image for Status Bar Dmitriy Yakovlev 3:46 22 Jun '07   Did you mean setting an icon for the status bar pane? If yes, then you can use the CStatusBarCtrl::SetIcon method. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink Re: Setting Background Image for Status Bar mnupadhya 23:57 22 Jun '07   Thanks for the quick response. I actually want to set a bitmap as the background image for the whole status bar, not an icon. Sign In·View Thread·PermaLink Re: Setting Background Image for Status Bar Dmitriy Yakovlev 2:25 26 Jun '07   In this case you have to manually paint all the status bar background and panes. The class in this article doesn't do this. You can use original class CExtStatusControlBar from the Prof-UIS Freeware[^] library which allows you to overide painting of the whole background or background of particular pane. This is done in the OnPaintEntireBackground and OnErasePaneBackground virtual methods. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink 2.00/5 Re: Setting Background Image for Status Bar mnupadhya 4:08 26 Jun '07   Thanks for the suggestion. Will try to use that class. Regards, narahari Upadhya Sign In·View Thread·PermaLink Can I use this class also for DialogBox? Ingenious001 3:45 9 Jan '07   Hi Dimitri, Can I use this class also in a DialogBox without inheritance and modification in the class? Thank you. We are an example of helping each other. Sign In·View Thread·PermaLink Re: Can I use this class also for DialogBox? Dmitriy Yakovlev 4:03 9 Jan '07   Using the status bar in the dialogs is extremely easy. Please take a look at this project. We just generated a simple dialog-based application, added CTestDlg::m_wndStatusBar property and created it in the CTestDlg::OnInitDialog() method. To stick the status bar to the bottom of the dialog window, we invoke the CWnd::RepositionBars() method in the OnInitDialog() and OnSize() methods. You can replace the the CStatusBar class with CExtStatusControlBar. The result will be the same. Of course, after creating the status bar in your dialog, you need to initialize its panes. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink Re: Can I use this class also for DialogBox? Ingenious001 5:31 9 Jan '07   Well Dimitry, You are a great guy for helping me with you quick response. I'll work it out later, but again thank you very much! We are an example of helping each other. Sign In·View Thread·PermaLink I want to pop a dialog, when click on progress bar.... liuty2006 8:48 7 Sep '06   I want to pop a dialog, when click on progress bar. how to do with it ? Sign In·View Thread·PermaLink Re: I want to pop a dialog, when click on progress bar.... Dmitriy Yakovlev 0:53 2 Oct '06   Just create the CExtStatusControlBar-derived class and handle the mouse click event inside the derived class. Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink 1.00/5 you are unbelievebly responsive spelger 21:21 20 Jan '06   with valuable feedback and that is impressive. good work too! scott pelger mammoth consulting Sign In·View Thread·PermaLink Re: you are unbelievebly responsive Dmitriy Yakovlev 5:30 27 Jan '06   Thank you for your kind words. I'm always at your service! Best regards, Dmitriy Yakovlev Sign In·View Thread·PermaLink 5.00/5 How to show a Icon and a string in a single pane? Tcpip2005 17:27 30 Oct '05   I mean the icon on the left and the string on the right in the same pane. Not a icon in a pane and a string in another pane Thank you Sign In·View Thread·PermaLink 2.00/5

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