• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 648
  • Last Modified:


I am using WIN32 API to create a Window application that have MDI and Toolbar.
The MDI application work fine with the toolbar except that the ToolBar seems to be draw on the client area eventhough I created the toolbar in the frame window. When the app create a child window, the top portion of the child window is covered by the toolbar.

Does anybody have any suggestion how to fix this?
  • 2
  • 2
1 Solution
Tommy HuiEngineerCommented:
If you look at how MFC fixes this problem, you'll see that the toolbar is a child of the frame. The MDI client window has been resized to match the area not taken by the toolbar. All MDI children are children of the MDI client window, so if the MDI client has been resized to not overlap with the toolbar, then neither will the MDI children.
kltAuthor Commented:
Thanks Thui,

I know the theory. However, My application initially created the toolbar and the MDI Client overlap to each other. How can I change my code so that they will not overlap to each other? Is that anything I need to set in order to make them not overlap to each other initially? Can you give me a little more detail how to fix it or point me to some sample code with MDI and Toolbar? I could not find any sample code with MDI and Toolbar in MSDN though.

Following code show how I create the Toobar:


           hWndToolbar = CreateToolbarEx(
                                   hWnd,                        // parent
                                   WS_CHILD| WS_BORDER| WS_VISIBLE |
                                   TBSTYLE_TOOLTIPS, // window style
                                   IDR_TOOLBAR,           // toolbar id
                                   8,                               // number of bitmaps
                                   ghInstance,                 // mod instance
                                   IDB_TOOLBAR,      // resource ID for bitmap

                 if (hWndToolbar == NULL )
                        MessageBox (NULL, "Tool not created!", NULL, MB_OK );
                        return 0;

Thanks again!
Tommy HuiEngineerCommented:
Trap WM_SIZE in the MDI frame and given the size of the frame, reposition and resize your MDI client and toolbar so they do not overlap. Calculate the new rectangles for the toolbar and client based on the frame's new size.

kltAuthor Commented:
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now