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  • C# winCE5.0开发右键效果解决方案

    用VS2008开发C#语言wince程序,发现程序里右键捕获不到,采集器上点也没反应,上网查好像有个c++版本的,看不懂啊,下面我给出C#实现右键效果的解决方案,请各位多多优化。 

     

    首先控件ContextMenu 和 Timer 

     

    ​设置contextMenu1


    在dataGrid里实现右键点击,事件dataGrid1_MouseDown 按下鼠标按钮事件。

    上代码

     

     
    public int _x;
     public int _y;
     private void dataGrid1_MouseDown(object sender, MouseEventArgs e)
            {
                System.Drawing.Point Pt = new Point(e.X, e.Y);
                DataGrid.HitTestInfo Ht = dataGrid1.HitTest(Pt.X, Pt.Y);
                //this.dataGrid1.CurrentCell = new DataGridCell(Ht.Row, Ht.Column);
                //this.dataGrid1.Select(Ht.Row); 
                if (Ht.Row >= 0 && Ht.Column >= 0)
                {
                    _x = e.X + 2;//记录鼠标当前坐标 
                    _y = e.Y + 1;//同上(priorPoint前面已经声明) 
                    SHRGINFO shr = new SHRGINFO();
                    shr.cbSize = Marshal.SizeOf(typeof(SHRGINFO));
                    shr.dwFlags = SHRGFLags.SHRG_RETURNCMD;
                    shr.ptDownX = MousePosition.X - 2;
                    shr.ptDownY = MousePosition.Y - 8;
                    shr.hwndClient = GetActiveWindow();
                    int ret = SHRecognizeGesture(ref shr);
                    if (ret == 1000)
                    {
                        timer1.Enabled = true;//开启计时器
                    }
                }
            }
     internal struct SHRGINFO
            {
                public int cbSize;
                public IntPtr hwndClient;
                public int ptDownX;
                public int ptDownY;
                public SHRGFLags dwFlags;
            }
            [Flags]
            internal enum SHRGFLags
            {
                SHRG_RETURNCMD = 0x00000001,
                SHRG_NOTIFYPARENT = 0x00000002,
                SHRG_LONGDELAY = 0x00000008,
                SHRG_NOANIMATION = 0x00000010,
            }
            [DllImport("aygshell")]
            extern private static int SHRecognizeGesture(ref SHRGINFO shr);
            [DllImport("coredll.dll", SetLastError = true)]
            public static extern IntPtr GetActiveWindow();  


    DataGrid.HitTestInfo

    我也是第一次用,把坐标传进去就能知道当前左边是哪列哪行,有没有数据,下面做出判断有数据了才显示。

    ret == 1000圆圈正好一圈
           [DllImport("aygshell")]
            extern private static int SHRecognizeGesture(ref SHRGINFO shr);
            [DllImport("coredll.dll", SetLastError = true)]
            public static extern IntPtr GetActiveWindow();  
    启用采集器DLL接口程序。

    MousePosition.X - 2 
    当前鼠标-2这个是控制圆圈的,不在鼠标中建,我给调了调,
    _X  _Y  会在时间里用到。timer1的事件,如果在此弹出右键菜单因为资源没有被释放,所以会报错的,只能启动下一个事件,我写在了timer1_Tick里,并使用timer1.Enabled = true启用事件


      
    private void timer1_Tick(object sender, EventArgs e)
            {
                string pids = this.dataGrid1[this.dataGrid1.CurrentRowIndex, 0].ToString();
                if (pids != "")
                {
                    contextMenu1.Show(dataGrid1, new Point(_x, _y));//弹出上下文菜单  
                    timer1.Enabled = false;
                }
            }



    要写上contextMenu1绑定的控件dataGrid1

    this.dataGrid1[this.dataGrid1.CurrentRowIndex, 0].ToString();可获得当前选中行某列。



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  • 原文地址:https://www.cnblogs.com/shiworkyue/p/3845323.html
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