how can I write data to BackBuffer directly?

Graphics and GPU Programming Programming

Started by emmai March 17, 2004 10:11 PM

1 comment, last by emmai 20 years, 1 month ago

100

Author

March 17, 2004 10:11 PM

LPDIRECT3DSURFACE9 pBackSurface = 0; HRESULT hr = m_pDevice->GetBackBuffer(0,0,D3DBACKBUFFER_TYPE_MONO,&pBackSurface); D3DLOCKED_RECT lr; pBackSurface->LockRect(&lr,0,D3DLOCK_NOSYSLOCK); ... I found I can''t lock BackBuffer.....

Namethatnobodyelsetook

1,260

March 17, 2004 10:35 PM

Did you created your device with the "lockablebackbuffer" flag?

d3dpp.Flags = D3DPRESENTFLAG_LOCKABLE_BACKBUFFER ;

emmai

100

Author

March 18, 2004 12:50 AM

quote:Original post by Namethatnobodyelsetook
Did you created your device with the "lockablebackbuffer" flag?

d3dpp.Flags = D3DPRESENTFLAG_LOCKABLE_BACKBUFFER ;

thanks 4 your help~
another question is can I write data to frontbuffer directly?