[SDL] How to integrate SDL as a child Window

[L-28C]

Wow... I came here to ask that same question, and this was at the top of 
the list... What a coincidence. O_O

Anyway, Mr. Byard, you might be wrong:
http://www.polplex.co.uk/~tigger/sdl/

And I say "might" because I tried a modified (non-C++) version and it 
crashes after the first call to SDL_BlitSurface... Here's my code:

(Note that I did put error checks on stuff like SDL_CreateRGBSurface, I 
just removed it to make the code shorter)

----------<code/>---------
	int bmsize;
	HDC dc = GetDC(g_WindowHandle);
	BITMAPINFO *bmi;
	BITMAPINFOHEADER bh;
	WNDCLASSEX wc;
	
	/* Create the window */
	
	wc.cbSize		= sizeof(WNDCLASSEX);
	wc.style		 = 0;
	wc.lpfnWndProc   = WndProc;
	wc.cbClsExtra	= 0;
	wc.cbWndExtra	= 0;
	wc.hInstance	 = a_hInstance;
	wc.hIcon		 = LoadIcon(NULL, IDI_APPLICATION);
	wc.hCursor	   = LoadCursor(NULL, IDC_ARROW);
	wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
	wc.lpszMenuName  = NULL;
	wc.lpszClassName = "scorchWindowClass";
	wc.hIconSm	   = LoadIcon(NULL, IDI_APPLICATION);
	
	g_WindowHandle = CreateWindowEx(
		WS_EX_CLIENTEDGE,
		"scorchWindowclass",
		"YASEC = Yet Another Scorched Earth Clone",
		WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT, CW_USEDEFAULT, a_Width, a_Height,
		NULL, NULL, a_hInstance, NULL);

	ShowWindow(g_WindowHandle, a_CmdShow);
	UpdateWindow(g_WindowHandle);

	/* Create the surface */
	g_Screen =
		SDL_CreateRGBSurface(SDL_SWSURFACE, a_Width, a_Height, SCR_DEPTH, 0, 
0, 0, 0);
	
	/* Get width and height */
	g_ScreenWidth = g_Screen->w;
	g_ScreenHeight = g_Screen->h;

	bmsize = sizeof(BITMAPINFO);
	
	if(g_Screen->format->palette)
	{
		bmsize += g_Screen->format->palette->ncolors *
			sizeof(RGBQUAD);
	}
	else
	{
		bmsize += 3*sizeof(DWORD);
	}

	bmi = (BITMAPINFO*)malloc(bmsize);
	/* Clear struct */
	memset((void*)&bh, 0, sizeof(BITMAPINFOHEADER));

	/* Initialize struct */
	bh.biSize = sizeof(BITMAPINFOHEADER);
	bh.biWidth = g_Screen->w;
	bh.biHeight = -g_Screen->h;	/* -ve for topdown bitmap */
	bh.biPlanes = 1;
	bh.biSizeImage = g_Screen->h * g_Screen->pitch;
	bh.biXPelsPerMeter = 0;
	bh.biYPelsPerMeter = 0;
	bh.biClrUsed = 0;
	bh.biClrImportant = 0;
	bh.biBitCount = g_Screen->format->BitsPerPixel;
	bh.biCompression = BI_BITFIELDS;

	bmi->bmiHeader=bh;

	((Uint32*)bmi->bmiColors)[0] = g_Screen->format->Rmask;
	((Uint32*)bmi->bmiColors)[1] = g_Screen->format->Gmask;
	((Uint32*)bmi->bmiColors)[2] = g_Screen->format->Bmask;

	g_WindowBitmap = CreateDIBSection(dc, bmi, DIB_RGB_COLORS,
		(void **)(&g_Screen->pixels), NULL, 0);

	/* Free memory */
	free(bmi);
	ReleaseDC(g_WindowHandle, dc);
	
	return 0;
---------</code>----------

Any ideas? Thanks!

Edward Byard wrote:
> Short answer is; no.
> 
> It would be very useful but SDL 1.2 can't do this; fingers crossed for 
> 1.3....
> 
> ----- Original Message ----
> From: Mine <mine260309 at gmail.com>
> To: A list for developers using the SDL library. (includes SDL-announce) 
> <sdl at lists.libsdl.org>
> Sent: Thursday, 15 November, 2007 7:35:30 AM
> Subject: [SDL] How to integrate SDL as a child Window
> 
> Hi All,
>     I'm using SDL on Windows XP. And I want to use it as a child window 
> in my application.
>     There is a new window created by SetVideoMode, is there any way to 
> set it as my application's child window instead of a stand alone window? 
> That is to say, I want it to have no task bar, no title bar (this is OK 
> by SDL_NOFRAME), when the focus is in SDL window, the application's main 
> windows is also focused.
>     Is there a way to implement that?
> -- 
> Mine
> 
> 
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