我用下面的函数载入位图,设置红色为关键色..可渲染时好象没用..红色一样被显示出来..

 D3DXCreateTextureFromFileEx(Device, "Title.bmp", D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, 0, D3DFMT_UNKNOWN, D3DPOOL_MANAGED,
        D3DX_FILTER_NONE,D3DX_DEFAULT, 0xffff0000,NULL, NULL, &pTexTitle);

高手说一下啊.

好象只有将纹理背景色变为黑色, 然后设置ColorKey为0xffff0000时,才行,变成其他颜色就不行了...有人有其他方法吗?

好象是在绘制的时候设置ColorKey才行吧？

D3DXCreateTextureFromFileEx(Device, "Title.bmp", D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, 0, D3DFMT_UNKNOWN, D3DPOOL_MANAGED,
        D3DX_FILTER_NONE,D3DX_DEFAULT,D3DCOLOR_ARGB(0,255,0,0),NULL, NULL, &pTexTitle);
Device->SetRenderState(D3DRS_ALPHATESTENABLE, TRUE);
Device->m_pIDirect3DDevice->SetRenderState(D3DRS_ALPHAREF, 0x00000000);
Device->m_pIDirect3DDevice->SetRenderState(D3DRS_ALPHAFUNC, D3DCMP_GREATER);试试这个