上过QQ的朋友们都知道，当QQ窗口位于桌面的左边界、右边界或顶部的时候，QQ会自动隐藏起来；而一旦鼠标再次接触到上述边界的时候，QQ窗口又会自动展开。QQ的这种特效在一定程度上大大的节约了桌面资源，给使用者带来的方便。

QQ悬挂窗口主要特点就是结合窗口以及鼠标的位置，并通过鼠标事件来调整窗口的显示方式。其中，窗口以及鼠标的位置可以通过GetWindowRect和GetCursorPos这两个函数来获取，故如何获取鼠标事件成为QQ悬挂窗口实现的关键。

-QQ having friends all know that when QQ window at the left margin of the desktop, right-border or at the top of the time, QQ will be automatically hidden　and once again come into contact with the mouse when the above-mentioned border, QQ window will automatically start. QQ such effects to some extent, greatly saving resources of the desktop, giving users the convenience. QQ is the hoisting of the main characteristics of the window combined with the location of windows and mouse, and mouse events to adjust the display window. Among them, the window as well as the location of the mouse can GetWindowRect and GetCursorPos these two functions to obtain, so how to obtain a mouse QQ events to become the key to the realization of the hoisting of the window.