回复人:zhengyu_chen(chen) (2001-7-12 10:23:32)  得20分 
g_hHook = SetWindowsHookEx(WH_MOUSE, MouseProc, _Module.m_hInst, GetCurrentThreadId());//安装HOOK
LRESULT CALLBACK MouseProc( int nCode,WPARAM wParam,LPARAM lParam)
{
    if (nCode < 0)
        return CallNextHookEx(g_hHook, nCode, wParam, lParam);
        
    MOUSEHOOKSTRUCT* lpMsg = (MOUSEHOOKSTRUCT*)lParam;
    if (wParam == WM_MOUSEMOVE)
    {
              if(lpMsg->hwnd == g_hHookedWnd)//g_hHookedWnd为你要捕获的窗口
              {
                // the code you add