CImageList::Draw怎么画Normal, Hot(原Image图片高亮), Select(原Image图片变暗), 和Disable(原Image图片变灰)的四个状态.

Question

同上,我目前是用CDC的BitBlt来画的, 我想显示32*32以下的图片,用CImageList::Draw应该会比CDC::BitBlt速度快些吧(个人想法)

Answer 1

CDC dcMemory;
ImageList.Draw(&dcMemory, nImageIdx, CPoint(0,0), ILD_NORMAL);  //正常图标
#define ILD_NORMAL              0x00000000
#define ILD_TRANSPARENT         0x00000001
#define ILD_MASK                0x00000010
#define ILD_IMAGE               0x00000020
#if (_WIN32_IE >= 0x0300)
#define ILD_ROP                 0x00000040
#endif
#define ILD_BLEND25             0x00000002
#define ILD_BLEND50             0x00000004
#define ILD_OVERLAYMASK         0x00000F00
#define INDEXTOOVERLAYMASK(i)   ((i) << 8)
#define ILD_PRESERVEALPHA       0x00001000  // This preserves the alpha channel in dest
#define ILD_SCALE               0x00002000  // Causes the image to be scaled to cx, cy instead of clipped
#define ILD_DPISCALE            0x00004000#define ILD_SELECTED            ILD_BLEND50
#define ILD_FOCUS               ILD_BLEND25
#define ILD_BLEND               ILD_BLEND50