HMENU Hotkeys & Icons
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Thread: HMENU Hotkeys & Icons

  1. #1
    Join Date
    Jan 2009
    Posts
    13

    Exclamation HMENU Hotkeys & Icons

    Hi all,

    I have two problems, the first being the most important:

    1.
    I have a Win32 (Non-MFC) app with a window and a win32 menu on it (HMENU), and I've been searching all day for a way to display shortcuts (like "Ctrl+C") on the menu items. I know there's the RegisterHotkey function but that doesn't make the shortcut to display on the menu item. There MUST be a way to do this without owner drawing the menu! Does anybody know how to achieve this?

    2.
    How can I display 32-bit icons in the menu items? I know how to use SetMenuItemInfo, but the problem comes when loading the bitmap. LoadBitmap works only with 24-bit bitmaps or less. LoadImage doesn't work either. I can use LoadIcon, but it is not compatible with HBITMAP, required by the MENUITEMINFO structure. Maybe a clue on how to transform a 32-bit PNG resource to an HBITMAP?

    Thanks in advance

  2. #2
    Join Date
    Apr 2009
    Posts
    598

    Re: HMENU Hotkeys & Icons

    1. Format the shortcut in the option of your menu, so that it is placed to the right side by inserting a tab character, "\t", just before the shortcut, e.g.
    Code:
      AppendMenu(hMenu, MF_STRING | MF_ENABLED, (UINT) (215), "&Copy\tCtrl+C");
    The ampersand character is another way to have a shortcut, but it works for one character only, e.g. "C" not "Ctrl+C".

    Then, in your code, you will have to manage Ctrl+C, e.g.
    Code:
    LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
    {
        switch (message) /* Handle the messages */
        {
       ...
          case WM_CHAR:
             switch (wParam) {
             case (WPARAM) (3): // ctrl C
                PostMessage(hwnd, WM_COMMAND, 215, 0L); // redirect to my copy option
                break;
             case (WPARAM) (22): // ctrl V
               ...
                break;
             case (WPARAM) (24): // ctrl X
               ...
                break;
             case (WPARAM) (26): // ctrl Z
               ...
                break;
             }
             break;
    
          case WM_COMMAND:
             switch(wParam) {
                case 215: // Copy to clipboard
             ...
                   break;
       ...
    }
    Last edited by olivthill2; September 15th, 2009 at 03:27 AM.

  3. #3
    Join Date
    Jan 2009
    Posts
    13

    Smile Re: HMENU Hotkeys & Icons

    Thanks olivthill2, that worked like a charm!

    Now if someone could help me with problem #2...

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