is screenshotting by DirectDraw faster than GDI wa

2019-08-17 04:21发布

just to save some time, probably anybody tried this or saw somewhere related info.

asking about DirectDraw and not about DirectX because I need to support Win2000 and up, and I cannot install DirectX on target PC

1条回答
Luminary・发光体
2楼-- · 2019-08-17 04:43

tried capturing by Direct3D and compared with GDI way. Results are not unambiguous. On my Win7 x64 with rather good video card D3D way shows ~2 times performance boost. On my WinXP 32bits laptop with not-integrated but old video card D3D works much much much longer. On another WinXP (I don't know any hardware details) D3D works almost 2 times slower.

查看更多
登录 后发表回答