WM屏蔽長按訊息

開始一直以為WM的長按訊息是右鍵訊息,犯了個低級錯誤!

WM有特定的API來做;

具體做法是在WM_LBUTTONDOWN裡處理

SHRGINFO    shrg;
 shrg.cbSize = sizeof(shrg);
 shrg.hwndClient = m_hWnd;
 shrg.ptDown.x = point.x;//LOWORD(lParam);
 shrg.ptDown.y = point.y;//HIWORD(lParam);
 shrg.dwFlags = SHRG_RETURNCMD|SHRG_NOANIMATION;
 if (::SHRecognizeGesture(&shrg) == GN_CONTEXTMENU)
 {
  return ;
 }

注:SHRG_NOANIMATION一定要加上，我就是沒加這個倒弄了好久!