C / C++ / MFC

12-Feb-07 8:27

I am aware of how to change the background color of the entire dialog in VS 6.0 (SetDialogBkColor(RGB(192,202,202) in InitInstance), but this does not seem to work in a dialog based project created in .NET

Any help on how to accomplish this in .NET would be apperciated.
Thanks!

toxcct12-Feb-07 8:32

12-Feb-07 8:32

overload OnEraseBkground()

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JBAK_CP12-Feb-07 8:37

12-Feb-07 8:37

do I just do a 'SetDialogBkColor(RGB(192,202,202),RGB(0,0,0))' inside 'OnEraseBkgnd'?

Mark Salsbery12-Feb-07 9:06

Mark Salsbery

12-Feb-07 9:06

You can set the background brush in the window class or handle WM_ERASEBKGND. For the latter,
you need to draw the background yourself, using whatever method you want.

SetDialogBkColor is an obsolete method.

JBAK_CP12-Feb-07 9:17

12-Feb-07 9:17

Ok, I handle the OnEraseBkgnd(CDC* pDC) and put the following in there:

CRect Rect;
GetClientRect(&Rect);
CBrush Bursh(RGB(192,202,202));
pDC->FillRect(&Rect,&Bursh);
return TRUE;

This seems to change the background, but my static text and edit boxes are still grey? Am I missing something?
Thanks

toxcct12-Feb-07 9:25

12-Feb-07 9:25

if you want the static controls backgrounds to be transparent, overload WM_CTLCOLOR. here a cool effect :

HBRUSH CMyDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) {
    HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
    if (nCtlColor == CTLCOLOR_STATIC) {
        pDC->SetBkMode(TRANSPARENT);
        pDC->SetTextColor(RGB(192, 192, 192));
        hbr = static_cast<HBRUSH>(GetStockObject(NULL_BRUSH));
    }
    return hbr;
}

BOOL CMyDlg::OnEraseBkgnd(CDC* pDC) {
    CRect rect;
    GetClientRect(&rect);
 
    COLORREF c1 = RGB(64, 0, 64);
    COLORREF c2 = RGB(0, 128, 128);
 
    for(int i = 0; i < rect.Height(); i++) { 
        int r, g, b;
        r = GetRValue(c1) + (GetRValue(c2) - GetRValue(c1)) * i / rect.Height();
        g = GetGValue(c1) + (GetGValue(c2) - GetGValue(c1)) * i / rect.Height();
        b = GetBValue(c1) + (GetBValue(c2) - GetBValue(c1)) * i / rect.Height();
        pDC->FillSolidRect(0, i, rect.Width(), 1, RGB(r, g, b));
    }
 
    return TRUE;
}

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JBAK_CP12-Feb-07 10:18

12-Feb-07 10:18

Thanks all for the help, it worked
toxcct, thanks for the cool sample Smile | :)

Re: Change dialog bkgrnd color in .NET [modified]

Mark Salsbery12-Feb-07 10:45

Mark Salsbery

12-Feb-07 10:45

I like your OnEraseBkgnd() implementation!

It has now become the background to my little MFCTester project I keep around for testing code
before I post it here.

I hope there's no royalties Smile | :)

Mark

toxcct12-Feb-07 10:47

12-Feb-07 10:47

hehe, :-> i know some would have liked it...

enjoy, it's perfectly free Cool | :cool:

BTW, i borrowed the shading effect to Nish on his personal blog

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Mark Salsbery12-Feb-07 10:23

Mark Salsbery

12-Feb-07 10:23

arunkk1 wrote:
but my static text and edit boxes are still grey? Am I missing something?

Yes.

To extend toxcct's reply for the edit boxes

HBRUSH CMyDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
 
    if (nCtlColor == CTLCOLOR_STATIC)
    {
        pDC->SetBkMode(TRANSPARENT);
        pDC->SetTextColor(RGB(192, 192, 192));
        hbr = static_cast(GetStockObject(NULL_BRUSH));
    }
    else if (nCtlColor == CTLCOLOR_EDIT)
    {
        pDC->SetTextColor(RGB(...,...,...));
        pDC->SetBkColor(RGB(...,...,...));
        hbr = (...some brush...);
    }
 
    return hbr;
}

Hamid_RT12-Feb-07 17:35

12-Feb-07 17:35

You can use of WM_ERASEBKGND or WM_CTLCOLOR

WhiteSky

toxcct12-Feb-07 20:22

12-Feb-07 20:22

dear you have to tell me...

Why on earth do you keep posting something that has already been suggested way better many hours after ?! Frown | :(

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Hamid_RT12-Feb-07 20:27

12-Feb-07 20:27

On the earth Sigh | :sigh:

WhiteSky

toxcct12-Feb-07 20:30

12-Feb-07 20:30

you are gold medal man, you quite have ne excuse.

and wht can't you explain yourself ?
i know english is far from being your mother tongue, but please try and use simple words and short sentences, so that we can understand together...

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Hamid_RT12-Feb-07 20:46

12-Feb-07 20:46

Well I can read english but for write not very well and you said explain yourself but what ?

WhiteSky

toxcct12-Feb-07 20:53

12-Feb-07 20:53

WhiteSky wrote:
explain yourself but what ?

well, explain yourself on the fact that you know copeproject well enough to know that you replied something that was already answered, particularly when your answer if perfectly naked...

have you seen this[^] before posting ?

so ?

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Hamid_RT12-Feb-07 21:02

12-Feb-07 21:02

Its interesting for me that does in this period I was useful when I answer to question or my answer was itself problem

WhiteSky

toxcct12-Feb-07 21:36

12-Feb-07 21:36

don't you understand ?
yes, answering a question in general well, and yes, your answer was exact and good.

but what i want you to understand, is that it's useless to tell something that has been submitted. it's as if you look on all the answers given there, and make a poor compilation af them. THIS is what i don't like ; and you know it, because we already had words on this some months ago.
if only you were replying within the same hour than someone else, but you come after 5 long hours and don't even provide much informations than what was already on the board.

i was feeling exactly the same way when i notified you here[^]

get me more now ?

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Hamid_RT12-Feb-07 23:13

12-Feb-07 23:13

I must say yes you right it wasnt a good answer :-Oand thank you for your response Big Grin | :-D

WhiteSky

toxcct12-Feb-07 23:15

12-Feb-07 23:15

now the question is : will you continue to do that or not ?! Poke tongue | ;-P

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Hamid_RT12-Feb-07 23:30

Re: minimize to system tray

12-Feb-07 23:30

And the answer is I will to hold good friends like you I dont know I am alone on the earth or other people are like me Wink | ;)

WhiteSky

minimize to system tray

convivial.developer12-Feb-07 7:34

convivial.developer

12-Feb-07 7:34

Can anyone give me a link to sources on the web or hints on how to
write a
program the will add and option to program window that minimize it to
system
tray? I want to do something simular to
http://www.actualtools.com/windowmenu/ but only I only want to add a button to all application windows that will allow me to minimize it to system tray. For instance, if I startup Outlook it will automatically have this "minimize to system tray" added button it. If I run any application it will automatically have this "minimize to system tray" button added to it.

Thanks,

toxcct12-Feb-07 7:37