D3D中简单的截图方法

在渲染完所有东东后（Present之前） 获得BackBuffer表面 然后用D3DX的函数保存 void ScreenShot (char *filename) {   IDirect3DSurface9 *tmp = NULL;   IDirect3DSurface9 *back = NULL;   //生成固定颜色模式的离屏表面（Width和 Height为屏幕或窗口的宽高）   D3D9Device->CreateOffscreenPlainSurface(Width, Height, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &tmp, NULL);   // 获得BackBuffer的D3D Surface   D3D9Device->GetBackBuffer(0, 0, D3DBACKBUFFER_TYPE_MONO, &back);   // Copy一下，，需要时转换颜色格式   D3DXLoadSurfaceFromSurface(tmp, NULL, NULL, back, NULL, NULL, D3DX_FILTER_NONE, 0);   // 保存成BMP格式   D3DXSaveSurfaceToFile(filename, D3DXIFF_BMP, tmp, NULL, NULL);   // 释放Surface，防止内存泄漏   SAFE_RELEASE(tmp);   SAFE_RELEASE(back); } 文件格式可以为： D3DXIFF_BMP     Microsoft Windows bitmap (BMP) file format. D3DXIFF_JPG     Joint Photographics Experts Group (JPEG) compressed file format. D3DXIFF_PNG     Portable Network Graphics (PNG) file format. D3DXIFF_DDS     Microsoft DirectDraw surface (DDS) file format. D3DXIFF_DIB     Windows device-independent bitmap (DIB) file format. D3DXIFF_HDR     High dynamic range file format. D3DXIFF_PFM     Portable float map file format.