Use 24-bit color toolbars and hot tracking on mouse over

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Using 24-bit Color Toolbars

Author: Kirk Stowell

Posted: November 16, 2004

Environment: Visual C++ MFC

Downloads:

article07_prj.zip - Source Files with Demo Project [29.5 KB]

If you want to add hot toolbar buttons like the ones seen in internet explorer, it is pretty straight forward. This approach will work for both Visual C++ 5 and 6, however you may want to read up on the enhancements to the toolbar class for VC 6.0.

After your toolbar has been created in CMainFrame::OnCreate(), you will need to add the following code, assuming that you have two bitmap resources already created IDB_TOOLBAR_COLD for normal, and IDB_TOOLBAR_HOT for hot buttons:

// Set up hot bar image lists.

CImageList imageList;

CBitmap bitmap;

// Create and set the normal toolbar image list.

bitmap.LoadBitmap(IDB_TOOLBAR_COLD);

imageList.Create(21, 20, ILC_COLORDDB|ILC_MASK, 13, 1);

imageList.Add(&bitmap, RGB(255,0,255));

m_hotToolBar.SendMessage(TB_SETIMAGELIST,

0, (LPARAM)imageList.m_hImageList);

imageList.Detach();

bitmap.Detach();

// Create and set the hot toolbar image list.

bitmap.LoadBitmap(IDB_TOOLBAR_HOT);

imageList.Create(21, 20, ILC_COLORDDB|ILC_MASK, 13, 1);

imageList.Add(&bitmap, RGB(255,0,255));

m_hotToolBar.SendMessage(TB_SETHOTIMAGELIST,

0, (LPARAM)imageList.m_hImageList);

imageList.Detach();

bitmap.Detach();

The send message portion of the code has been wrapped into a CToolBarCtrl() function call for Visual C++ 6. If you will notice, I have used 24 bit color images with the toolbar shown here, so you are not limited to just 16 colors.