Direct3DTexture9显示到MFC界面上

转载请注明出处： http://blog.youkuaiyun.com/tianhai110

 

以前我曾写过一篇文章讲述如何把GDI写的文字转化成Direct2DTexture,以便3D场景显示系统字体

http://blog.youkuaiyun.com/tianhai110/archive/2007/04/19/1571250.aspx

现在遇到相反的情况了，需要把3D场景所得的图片，实时显示到MFC界面上，以实现像魔兽编辑器那样可以预览模型。 下面的代码是该功能最核心的部分。

 

IDirect3DTexture9* suf; // 要保存的纹理 LPD3DXBUFFER pDestBuffer = NULL; if( FAILED( D3DXSaveTextureToFileInMemory( &pDestBuffer, D3DXIFF_BMP, suf, NULL))) { return NULL; } BITMAPFILEHEADER *pHeader = (BITMAPFILEHEADER*)pDestBuffer->GetBufferPointer(); BITMAPINFOHEADER *pInfo = (BITMAPINFOHEADER*)((BYTE*)pDestBuffer->GetBufferPointer() + sizeof(BITMAPFILEHEADER)); BITMAPINFO bmpInfo; memset(&bmpInfo, 0, sizeof(bmpInfo)); bmpInfo.bmiHeader = *pInfo; void *pData = (void*)((BYTE*)pDestBuffer->GetBufferPointer() + sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER)); HDC hDC = GetDC( m_hWnd); HDC hMemDC = CreateCompatibleDC(hDC); BYTE *pPixel = NULL; HBITMAP hMemDCBitmap = CreateDIBSection(hMemDC,&bmpInfo, DIB_RGB_COLORS , (void**)&pPixel, NULL, 0); SelectObject(hMemDC, hMemDCBitmap); memcpy(pPixel , pData, pInfo->biWidth*pInfo->biHeight*pInfo->biBitCount/ 8); BitBlt(hDC, 0, 0, pInfo->biWidth, pInfo->biHeight, hMemDC, 0, 0, SRCCOPY); DeleteDC(hMemDC); DeleteObject(hMemDCBitmap); pDestBuffer->Release();