Furthermore, if you so desire, you can hilite the item that the drag image is over by sending TVM_HITTEST to check if the drag image is over some item.

• 如果你非常希望你在拖动图像的时候那些它经过的项目呈高亮显示，你可以发送TVM_HITTEST消息来检查拖拉图像是否经过某些项。