Using the Windows Forms 2.0 MenuStrip and ToolStrip controls to give your MFC applications a new look and feel

• Download demo project - 51.4 Kb
• Download source - 32.6 Kb

Introduction

In this article, I'll demonstrate how to use the Windows Forms 2.0 MenuStrip and ToolStrip controls in an MFC SDI application, using C++/CLI, to get the Office 2003 style menu and toolbar. I assume that you already know how to use these new Forms controls introduced in Whidbey, that you are familiar with C++/CLI syntax, and that you know about the new Windows Forms interop helper classes that have been added to MFC 8.

Step-by-step guide

This is a step by step guide to adding the Forms controls to an existing application. For the example, just use a default SDI app that's generated by VC++ 8. Note that, the same techniques can be more or less used the same way for an MDI application too - except you need to change the classes used accordingly.

Step 1 : Remove the MFC toolbar creation code

Comment out or delete the MFC toolbar creation code, and any references to it. For a default app, the following lines are to be commented out (or removed).

//if (!m_wndToolBar.CreateEx(this, 

//  TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP

//  | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | 

//  CBRS_SIZE_DYNAMIC) ||

//  !m_wndToolBar.LoadToolBar(IDR_MAINFRAME))

//{

//  TRACE0("Failed to create toolbar\n");

//  return -1; // fail to create

//}


//m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);

//DockControlBar(&m_wndToolBar);

Step 2 : Destroy the MFC menu

You can do this in PreCreateWindow, but for this example, out of personal choice, we'll do this in OnCreate - very early on. The idea is that you can do the same thing if you want to swap the MFC menu for the Forms menu, in response to a user action.

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
        return -1;

    GetMenu()->DestroyMenu();
    SetMenu(NULL);

Step 3 : Add MenuStrip and ToolStrip members to the frame window class

We use the CWinFormsControl which provides functionality to host a Forms control in MFC.

CWinFormsControl<System::Windows::Forms::MenuStrip> m_MenuStrip;
CWinFormsControl<System::Windows::Forms::ToolStrip> m_ToolStrip;

Step 4 : Create and initialize the MenuStrip and ToolStrip controls

We do this in OnCreate. The code below shows what I've done, and there are a few comments explaining what's being done. It's mostly standard Windows Forms code in there.

using namespace System::Windows::Forms;

//Create the Forms controls and set the frame window as parent

m_MenuStrip.CreateManagedControl(WS_VISIBLE|WS_CHILD, 
    CRect(0,0,0,25),this, 1001);
m_ToolStrip.CreateManagedControl(WS_VISIBLE|WS_CHILD, 
    CRect(0,25,0,75),this, 1002);

//Create and initialize the menu strip


ToolStripMenuItem^ topitem = gcnew ToolStripMenuItem();
ToolStripMenuItem^ item = gcnew ToolStripMenuItem();

topitem->Text = "File";
m_MenuStrip->Items->Add(topitem); 

item->Text = "Open";
//We load the icon using LoadImage, and convert the HICON

//to a Bitmap using the FromHicon method. LoadImage was

//preferred to support higher color icons. The CWinApp LoadIcon

//isn't as flexible or functional, and always treats icons as 32x32.

item->Image = System::Drawing::Bitmap::FromHicon((System::IntPtr)
    LoadImage(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_OPEN),
    IMAGE_ICON,0,0,LR_DEFAULTCOLOR));
//Maps the C++ class method to the event handler

item->Click += MAKE_DELEGATE(System::EventHandler,File_Open_Click);

topitem->DropDownItems->Add(item);

item = gcnew ToolStripMenuItem();
item->Text = "Exit";
item->Image = System::Drawing::Bitmap::FromHicon((System::IntPtr)
    LoadImage(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_EXIT),
    IMAGE_ICON,0,0,LR_DEFAULTCOLOR));
item->Click += MAKE_DELEGATE(System::EventHandler,File_Exit_Click);

topitem->DropDownItems->Add(item);

topitem = gcnew ToolStripMenuItem();
topitem->Text = "Help";
m_MenuStrip->Items->Add(topitem);

item = gcnew ToolStripMenuItem();
item->Text = "About";
item->Image = System::Drawing::Bitmap::FromHicon((System::IntPtr)
    LoadImage(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_HELP),
    IMAGE_ICON,0,0,LR_DEFAULTCOLOR));
item->Click += MAKE_DELEGATE(System::EventHandler,Help_About_Click);

topitem->DropDownItems->Add(item);

//Create and initialize the tool strip


ToolStripButton^ tbutton;

tbutton = gcnew ToolStripButton();
tbutton->Size = System::Drawing::Size(50,50);
tbutton->Text = "Open";
tbutton->TextAlign = System::Drawing::ContentAlignment::BottomCenter;
tbutton->ToolTipText = tbutton->Text; 
tbutton->Image = System::Drawing::Bitmap::FromHicon((System::IntPtr)
    LoadImage(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_OPEN),
    IMAGE_ICON,0,0,LR_DEFAULTCOLOR));
tbutton->ImageScaling = ToolStripItemImageScaling::None;
tbutton->ImageTransparentColor = 
    System::Drawing::Color::FromArgb(220,220,220);
tbutton->ImageAlign = System::Drawing::ContentAlignment::TopCenter;
tbutton->TextImageRelation = TextImageRelation::ImageAboveText;
tbutton->Click += MAKE_DELEGATE(System::EventHandler,File_Open_Click);
tbutton->Padding = Padding(5,0,5,0);

m_ToolStrip->Items->Add(tbutton);

tbutton = gcnew ToolStripButton();
tbutton->Size = System::Drawing::Size(50,50);
tbutton->Text = "About";
tbutton->TextAlign = System::Drawing::ContentAlignment::BottomCenter;
tbutton->ToolTipText = tbutton->Text;
tbutton->Image = System::Drawing::Bitmap::FromHicon((System::IntPtr)
    LoadImage(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_HELP),
    IMAGE_ICON,0,0,LR_DEFAULTCOLOR));
tbutton->ImageScaling = ToolStripItemImageScaling::None;
tbutton->ImageTransparentColor = 
    System::Drawing::Color::FromArgb(220,220,220);
tbutton->ImageAlign = System::Drawing::ContentAlignment::TopCenter;
tbutton->TextImageRelation = TextImageRelation::ImageAboveText;
tbutton->Click += MAKE_DELEGATE(System::EventHandler,Help_About_Click);
tbutton->Padding = Padding(5,0,5,0);

m_ToolStrip->Items->Add(tbutton);

tbutton = gcnew ToolStripButton();
tbutton->Size = System::Drawing::Size(50,50);
tbutton->Text = "Exit";
tbutton->TextAlign = System::Drawing::ContentAlignment::BottomCenter;
tbutton->ToolTipText = tbutton->Text;
tbutton->Image = System::Drawing::Bitmap::FromHicon((System::IntPtr)
    LoadImage(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_EXIT),
    IMAGE_ICON,0,0,LR_DEFAULTCOLOR));
tbutton->ImageScaling = ToolStripItemImageScaling::None;
tbutton->ImageTransparentColor = 
    System::Drawing::Color::FromArgb(220,220,220);
tbutton->ImageAlign = System::Drawing::ContentAlignment::TopCenter;
tbutton->TextImageRelation = TextImageRelation::ImageAboveText;
tbutton->Click += MAKE_DELEGATE(System::EventHandler,File_Exit_Click);
tbutton->Padding = Padding(5,0,5,0);

m_ToolStrip->Items->Add(tbutton);

Step 5 : Handle OnSize in your frame window

We need to prevent the view window from showing itself on top of the menu strip and the tool strip controls we have added. This is done on OnSize.

void CMainFrame::OnSize(UINT nType, int cx, int cy)
{
    CFrameWnd::OnSize(nType, cx, cy);       

    // If the menu strip is created

    if(m_MenuStrip.GetSafeHwnd())
    {
        CRect rect;
        // Need to figure out the required rect that accounts

        // for any other control bars (like the status bar)

        RepositionBars(AFX_IDW_CONTROLBAR_FIRST,
            AFX_IDW_CONTROLBAR_LAST,0,CWnd::reposQuery,&rect);
        // Adjust rect so we have enough space to show

        // the menu and tool strips

        m_MenuStrip->Size = System::Drawing::Size(
            rect.Width(),m_MenuStrip->Size.Height);
        m_ToolStrip->Size = System::Drawing::Size(
            rect.Width(),m_ToolStrip->Size.Height);
        rect.top += (m_MenuStrip->Size.Height + 
            m_ToolStrip->Size.Height);
        CView* pView = GetActiveView();
        if(pView)
        {
            // resize the view window

            pView->MoveWindow(rect);
        }
    }
}

Step 6 : Add delegate maps

These have to be added to the public section in your class declaration. They essentially map event handlers to class methods.

BEGIN_DELEGATE_MAP( CMainFrame )
    EVENT_DELEGATE_ENTRY( File_Exit_Click, 
        System::Object^, System::EventArgs^)
    EVENT_DELEGATE_ENTRY( Help_About_Click, 
        System::Object^, System::EventArgs^)
    EVENT_DELEGATE_ENTRY( File_Open_Click, 
        System::Object^, System::EventArgs^)
END_DELEGATE_MAP()

Step 7 : Add event handlers

Just write the event handlers that are called when a tool strip button or a menu is clicked.

void CMainFrame::File_Exit_Click(System::Object^ sender,
    System::EventArgs^ e)
{
    PostMessage(WM_CLOSE);
}

void CMainFrame::File_Open_Click(System::Object^ sender, 
    System::EventArgs^ e)
{
    PostMessage(WM_COMMAND,ID_FILE_OPEN);
}

void CMainFrame::Help_About_Click(System::Object^ sender, 
    System::EventArgs^ e)
{
    ReleaseCapture(); // Needed as the ToolStrip captures the mouse

    CAboutDlg aboutDlg;
    aboutDlg.DoModal();
}

History

• Feb 21 2006 - Fixed an issue with showing modal dialogs from a toolbar item click handler.
• Feb 15 2006 - Article first published.