Loading Bitmap to the surface....
June 11, 2002 12:41 PM
Ok so Im working on Tetris..I use the Win32 Func LoadImage to load the bitmap but, what do i use to get it from memory to the surface? Mind you im using DDraw not DXGraphics no 3d card in this comp...I know BitBlt will transfer from surface to surface but i dont think it will take the bmp from memory to the surface.
Any ideas, any help is appreciated.
122
June 11, 2002 02:06 PM
You can get access to bitmap bits using GetObject function and BITMAP structure.
---visit #directxdev on afternet <- not just for directx, despite the name
368
June 11, 2002 02:30 PM
HDC Mem = NULL; HBITMAP NewBitmap = NULL;HBITMAP OldBitmap = NULL;HRESULT hr; HDC Hdc=GetDC(WindowHandle);Mem = CreateCompatibleDC(Hdc); NewBitmap = (HBITMAP)LoadImage(NULL,Filename,IMAGE_BITMAP,0,0,LR_LOADFROMFILE); OldBitmap = (HBITMAP)SelectObject(Mem,NewBitmap); BITMAP Bitmap; GetObject(NewBitmap,sizeof(BITMAP),(LPVOID)&Bitmap); DDSURFACEDESC2 DDSD; memset(&ddsd,0,sizeof(DDSURFACEDESC2)); DDSD.dwSize = sizeof(DDSURFACEDESC2); DDSD.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS;DDSD.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_VIDEOMEMORY;DDSD.dwWidth = Bitmap.bmWidth; DDSD.dwHeight = Bitmap.bmHeight; DirectDraw->CreateSurface(&DDSD,&OffscreenSurface,NULL); HDC SurfaceHDC; OffscreenSurface->GetDC(&SurfaceHDC); BitBlt(SurfaceHDC,0,0,Bitmap.bmWidth,Bitmap.bmWidth,Mem,0,0, SRCCOPY);OffscreenSurface->ReleaseDC(SurfaceHDC); Ballistic Programs
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