- prBM = new Graphics::TBitmap;
- prBM->PixelFormat = pf24bit;
- hdc = prBM->Canvas->Handle; // is this the right handle to use here?
- PIXELFORMATDESCRIPTOR pfd = {
- sizeof(PIXELFORMATDESCRIPTOR),
- 1,
- PFD_DRAW_TO_BITMAP | PFD_SUPPORT_OPENGL | PFD_SUPPORT_GDI,
- PFD_TYPE_RGBA,
- 24,
- 0,0,0,0,0,0,
- 0,0,
- 0,0,0,0,0,
- 32,
- 0,
- 0,
- PFD_MAIN_PLANE,
- 0,
- 0,0,0
- };
- PixelFormat = ChoosePixelFormat(hdc, &pfd);
- if (!SetPixelFormat(hdc, PixelFormat, &pfd))
- ShowMessage("Pixel format not set");
Hi all,
I'm not really into Delphi, in fact I use Borland C++ Builder, but it shouldn't be a problem. I'm trying to render on a bitmap in BC++ Builder 5.0. I read in MSDN (which, unfortunately, deals with M$ stuff, not Borland) that the number of bits per pixels for the bitmap should be equal to that in the PIXELFORMATDESCRIPTOR. So here's the code:
Code:
I guess that I got the flags alright. ChoosePixelFormat returns some stuff (so it's not NULL), but SetPixelFormat doesn't work. So I wonder what I did wrong?
So far, my main doubts are about the handle "hdc". In MSDN they operate with DIBsections. - But here, I use Borland's own TBitmap. Borland fans - does anyone know where's the problem? Thanx!
I absolutely need to render stuff on a TBitmap (my supervisor requires that, so...), and I couldn't get help on opengl.org forums
Please help me, or at least drop a link where to look for a solution.