DirectDraw primary surface to jpeg
Author
Hi!
I have a question. I have a basic directdraw application, and i have to capture the screen into a jpeg format. I am using directx 9.0. I am new to directx. Please help, thanks in advance.
arpi
this isnt for directdraw it is for direct3d 9 but it may be helpful
[edited by - eFoDay on March 7, 2004 5:58:01 PM]
void CDirect3D::TakeScreenShot(LPCTSTR pDestFile){ D3DDISPLAYMODE displayMode; LPDIRECT3DSURFACE9 pd3dsFront = NULL; // Get the display mode m_pd3dDevice->GetDisplayMode(0, &displayMode); // Create a surface to hold the front buffer m_pd3dDevice->CreateOffscreenPlainSurface(displayMode.Width, displayMode.Height, D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &pd3dsFront, NULL); // Get the front buffer and save it to a file if( SUCCEEDED( m_pd3dDevice->GetFrontBufferData(0, pd3dsFront) ) ) D3DXSaveSurfaceToFile(pDestFile, D3DXIFF_JPG, pd3dsFront, NULL, NULL); // Release the surface if( pd3dsFront ) pd3dsFront->Release();}[edited by - eFoDay on March 7, 2004 5:58:01 PM]
Author
Thanks, but i am not using D3D, can i do it without it? How to access the pixel data of the primary surface?(If if can acces the per pixel data ican save it to any format)
use CSurface->Lock(...) to get a pointer to the surface actual bytes. Look in the SDK, this part is explained. And don''t forget to unlock it afterwards.
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