实现用鼠标拖动图片，没有闪烁的。正确源码-Using the mouse to drag the picture, there is no flashing. The correct source

VC++源码实现一个可拖动窗口的无边框、无标题栏窗口实例，示例演示截图看似一张图片，实则上是VC编程实现的无边框无标题栏的窗口，而且加入了拖动功能，鼠标按住窗口可随意拖动它的位置，具体的实现过程和思路请参阅源码吧。-The VC++ source to achieve a draggable window no border, no title bar of the window instance, the example demonstrates screenshot looks like a