nbsp;if(hCallWnd[index]==hWnd){
          if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
            hCallWnd[index]=NULL;
            HotKey[index]=0;
            HotKeyMask[index]=0;
            bRemoved=TRUE;
            KeyCount--;
            break;
          }
        }
    }
    return bRemoved;
}
3. 钩子函数如下：

LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
{
    BOOL bProcessed=FALSE;
    if(HC_ACTION==nCode)
    {
        if((lParam&0xc0000000)==0xc0000000){// 有键松开
          switch(wParam)
          {
          case VK_MENU:
          MaskBits&=~ALTBIT;
          break;
          case VK_CONTROL:
          MaskBits&=~CTRLBIT;
          break;
          case VK_SHIFT:
          MaskBits&=~SHIFTBIT;
          break;
          default: //judge the key and send message
          break;
          }
          for(int index=0;index<MAX_KEY;index++){
          if(hCallWnd[index]==NULL)
          continue;
          if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits)){
          SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
          bProcessed=TRUE;
          }
          }
        }