小女子求助~~~~~~~响应窗口消息

HuangYZ

建议把 深入浅出MFC 看个5遍

ljm

MFC就不必了吧

playerwing

SetCapture( hWnd );  // hWnd是你要指定的接收信息的窗口
ReleaseCapture( hWnd ); // 释放指定窗口的Capture功能

anderson_chs

SetCapture 也是有限制的.
windows 不允许任意捕获当前窗口外的鼠标消息.
简单地说, 只有当鼠标在拖动中离开了窗口,  才能能继续跟踪鼠标

anderson_chs

btw, 拖动中的窗口外的鼠标一旦释放鼠标按钮, 就无法跟踪鼠标乐

小颖

嗯，懂一点了，是不是VK_LBUTTONDOWN的时候才调用SetCapture，等VK_LBUTTONUP时再ReleaseCapture？

anderson_chs

对喽, 聪明

pluto_crusader

The SetCapture function sets the mouse capture to the specified window belonging to the current thread. SetCapture captures mouse input either when the mouse is over the capturing window, or when the mouse button was pressed while the mouse was over the capturing window and the button is still down. Only one window at a time can capture the mouse.

If the mouse cursor is over a window created by another thread, the system will direct mouse input to the specified window only if a mouse button is down.
看了上面这段话之后，似乎情况比你们所说的要复杂哦
[em19] [em19]

茹枫

女的果然比较幸运。

seer

唔，是这个意思——
SetCapture对于鼠标在该线程创建的窗口内很有用，在其他线程的窗口内只发送VK_L/RBUTTONDOWN
不知道对不对