Thread: Buttons over a static control

  1. #1
    Registered User Joelito's Avatar
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    Buttons over a static control

    I'm having trouble to put two buttons over a static control, because I need a special color for that static control...
    right now all my dialog background is white, with:
    Code:
    case WM_CTLCOLORDLG:
    {return (BOOL)GetStockObject(WHITE_BRUSH);}
    Now for the static background
    Code:
    case WM_CTLCOLORSTATIC:
    {
    if (hwControl == GetDlgItem(hwndDlg,IDC_FRAMEBUTTON))
    {
    SetBkMode(hdc,TRANSPARENT);
    return (BOOL)GetStockObject(DKGRAY_BRUSH);
    }
    return (BOOL)GetStockObject(NULL_BRUSH);
    }
    But the static is over the button, I need the opposite, the button over the static...any ideas?
    * PC: Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM: Archlinux-i686 with xfce4.
    * Laptop: Intel Core 2 DUO T6600 @ 2.20 GHz with 4 GB RAM: Archlinux-x86-64 with xfce4.

  2. #2
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    Quote Originally Posted by Joelito View Post
    I'm having trouble to put two buttons over a static control, because I need a special color for that static control...
    right now all my dialog background is white, with:
    Code:
    case WM_CTLCOLORDLG:
    {return (BOOL)GetStockObject(WHITE_BRUSH);}
    Now for the static background
    Code:
    case WM_CTLCOLORSTATIC:
    {
    if (hwControl == GetDlgItem(hwndDlg,IDC_FRAMEBUTTON))
    {
    SetBkMode(hdc,TRANSPARENT);
    return (BOOL)GetStockObject(DKGRAY_BRUSH);
    }
    return (BOOL)GetStockObject(NULL_BRUSH);
    }
    But the static is over the button, I need the opposite, the button over the static...any ideas?
    Yep... don't overlap windows controls with anything but a GROUPBOX. When the static control gets WM_PAINT it will draw right over the buttons...

    The solution is to use a GROUPBOX (The button control style with the line around it and a title string)... which is specifically designed as a background for buttons and other controls. It should also be the window parent for any controls you place inside it.

    To control it's colour you catch WM_CTLCOLORBUTTON and check it's handle before providing a brush.

    The hdc for WM_CTLCOLOR<whatever> is in the WPARAM and the LPARAM has the control's handle. And, this message needs a data return so don't cast the return to (BOOL) just return the brush.

    To check for the correct control you should use ...
    Code:
    if ((HWND) WPARAM == GetDlgItem(hwndDlg,IDC_FRAMEBUTTON))
    Substitute whatever varable name you gave the WPARAM... of course.

  3. #3
    Registered User Joelito's Avatar
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    @CommonTater: But is a dialog...all the controls have the dialog hwnd as parent
    * PC: Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM: Archlinux-i686 with xfce4.
    * Laptop: Intel Core 2 DUO T6600 @ 2.20 GHz with 4 GB RAM: Archlinux-x86-64 with xfce4.

  4. #4
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    So... try it with the groupbox and leave the parent windows alone... see what happens. I do groupboxes in dialogs a lot (take a peek at the software on my website) and they work just fine with the Dialog as parents. It's when you start stacking other kinds of controls you have to get a bit fancy...

  5. #5
    train spotter
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    Have you tried using SetWindowPos() [in the init/create handler] to ensure that the controls have the required z-order?
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