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

[Vlada D. <dj...@im...>]

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[]="Display text";
            hDC=GetDC(hwnd);
            TextOut(hDC,100,100,str,lstrlen(str));
            ReleaseDC(hwnd,hDC);
        }
        break;

What am I doing wrong?
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Vlada