RE: [Dev-C++] why doesn't this work?

[P.D. v. Z. <pd...@xs...>]

In general, the only place where you should draw anything on your window
is when Windows requests you to, in WM_PAINT ... if you draw anywhere
else, there's a pretty big chance that what you painted on the screen
will get overwritten again when Windows sends a WM_PAINT (since you
don't do anything there, Windows will decide what to do).

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Carlos
Garc=EDa del Monte
Sent: Thursday, February 20, 2003 12:29 PM
To: dev-cpp-users-list
Subject: Re: [Dev-C++] why doesn't this work?


When you process the WM_CREATE, the window is not yet created, so you=20
cannot work with its hdc, at least, it is what it seems to happen. I did

an experiment like yours and didn't worked, I deleted the code and moved

to another WM_.

Vlada Djurovic wrote:

>Hi.
>This is suppposed to be simple, but I can't get it to work. All I want
to do
>is display some text using TextOut function, but I get only a blank
window.
>Here's the code:
>
> HDC hDC;
>        case WM_CREATE:
>        {
>            char str[]=3D"Display text";
>            hDC=3DGetDC(hwnd);
>            TextOut(hDC,100,100,str,lstrlen(str));
>            ReleaseDC(hwnd,hDC);
>        }
>        break;
>
>What am I doing wrong?
>------------
>Vlada
>
>
>
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> =20
>




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