sdk 里SAMPLE的DIRECTX DDEX1示例是否有错

[zkhraul]

刚接触DIRECTX ，我运行sdk 里SAMPLE的DIRECTX DDEX1示例好象无法得到想要的效果，好象BACKSUFACE不起作用

[xqhrs232]

玩过没感觉错

[czbever]

要在真机上

[czbever]

typedef struct _DDSCAPS{
DWORD dwCaps;
} DDSCAPS, FAR* LPDDSCAPS;


这个结构体表示的是硬件的支持　　模拟器上可能不支持

DDSCAPS_BACKBUFFER
Indicates that this surface is the back buffer of a surface flipping structure.

Typically, this capability is set by the CreateSurface method when the DDSCAPS_FLIP flag is used.

Only the surface that immediately precedes the DDSCAPS_FRONTBUFFER surface has this capability set.

The other surfaces are identified as back buffers by the presence of the DDSCAPS_FLIP flag, their attachment order, and the absence of the DDSCAPS_FRONTBUFFER and DDSCAPS_BACKBUFFER capabilities.

If this capability is sent to the CreateSurface method, a stand-alone back buffer is being created.

After this method is called, this surface could be attached to a front buffer, another back buffer, or both to form a flipping surface structure.