*****想在dll中刷新窗体的一个矩形区域（用InvalidateRect（)？），该怎么做？高手请亮招

[bejesus]

我在自己的dll用SetWindowsHookEx(WH_MOUSE,MouseProc,glhInstance,0)捕获鼠标消息，接着在MouseProc函数中有如下代码：
if (wparam == WM_MOUSEMOVE )
{
HWND hwnd=WindowFromPoint(MousePoint);//MousePoint当前鼠标位置

RECT rect; //这样构造rect是为了简单起见
ScreenToClient(hwnd,&MousePoint);
rect.left=MousePoint.x;
rect.top=MousePoint.y;
rect.right=MousePoint.x+100;
rect.bottom=MousePoint.y+100;
InvalidateRect(hwnd,&rect,TRUE);
}
但是程序每次执行时InvalidateRect(hwnd,&rect,TRUE);不会使当前的view重绘，百思不得其解，请高高手指点迷津！

[bejesus]

没人响应???????????????????????????

[bejesus]

这点问题竟然没人知道？我苦......

[bejesus]

高手都冬眠了？