🚀 go-pugleaf

   I need help on simple PM programming with GNU C v2.2.  I'm trying create
a PM window but all that happens is my os2/window changes title screen & icon
and returns to os2/window.

   gnu -c hello.c
   rc -r hello.rc hello.h hello.ico
   link386 hello,,,,hello
   rc hello.res


I've run the sample3 program and don't see any major difference in code.
Can anyone see any errors?  Please post or email chiu@iscnvx.lmsc.lockheed.com
Thanks in advance for any info.



/************************************************************************/
#define	 INCL_PM
#define	 INCL_BASE
#define	 IDR_RESOURCES	1
#define	 INCL_WIN
#define  INCL_GPI

#include <os2.h>
#include <stdlib.h>
#include "hello.h"

HAB	hab;
HMQ	hmq;
HWND	hwndHello;
HWND	hwndFrame;
char	ClassName[]="Hello";

int main()
{

   QMSG qmsg;
   static ULONG FrameFlags = 
		FCF_TITLEBAR | FCF_SIZEBORDER | FCF_MINMAX |
		FCF_SYSMENU | FCF_SHELLPOSITION | FCF_TASKLIST;

   static ULONG FrameStyle = WS_VISIBLE | FS_ICON;

   hab = WinInitialize(0);

   hmq = WinCreateMsgQueue(hab,0);

   WinRegisterClass(hab, ClassName, (PFNWP) ClientWndProc, CS_SIZEREDRAW, 0);

   hwndFrame = WinCreateStdWindow( HWND_DESKTOP, FrameStyle, &FrameFlags,
   		ClassName, 0L, WS_VISIBLE, (HMODULE) 0, IDR_RESOURCES,
		&hwndHello);

   WinShowWindow( hwndFrame, TRUE);


   while (WinGetMsg(hab, &qmsg, NULL,0,0))
      WinDispatchMsg(hab, &qmsg);

   WinDestroyWindow(hwndFrame);
   WinDestroyMsgQueue( hmq);
   WinTerminate(hab);
}



MRESULT EXPENTRY ClientWndProc( HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
{
   HPS		hps;
   RECTL	INVLDRECT;

   switch(msg)
   {
      case WM_CREATE:
      case WM_PAINT:
   	 hps=WinBeginPaint(hwnd, 0, 0);
	 WinQueryWindowRect(hwnd, &INVLDRECT);
	 WinFillRect(hps, &INVLDRECT, CLR_WHITE);
	 WinEndPaint(hps);
	 return 0;
      case WM_CLOSE:
	 WinPostMsg( hwnd, WM_QUIT, 0L, 0L);
	 return 0;
      default: 
	 return( WinDefWindowProc( hwnd, msg, mp1, mp2));
   }
   return 0;
}