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    /*----------------------------------------------------------- 
        函数 double_press : 测试是否双击鼠标按钮 
    -----------------------------------------------------------*/ 
    #include  
 
    int _DoublePressTime = 400; 
    int _Cdecl double_press(unsigned key) 
    { 
        int isdoublepress = NO; 
        /*-- 如果是鼠标按键,检查是否双击鼠标键 --------*/ 
        if(key>400) 
        { 
            _BX    = 0; 
            _AX    = 5; 
            geninterrupt(0x33); 
            delay(_DoublePressTime); 
            _BX    = key-401; 
            _AX    = 5; 
            geninterrupt(0x33); 
            if(_BX==1) 
                isdoublepress = YES; 
        } 
        return isdoublepress; 
    }