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private void menuItem1_Click(object sender, System.EventArgs e)

{

Clipboard.SetDataObject (MyRTBox.SelectedText );

// MyRTBox.Copy ();

}

private void menuItem2_Click(object sender, System.EventArgs e)

{

// MyRTBox.Paste();

IDataObject iData = Clipboard.GetDataObject();

if (iData.GetDataPresent (DataFormats.Text ))

{

string ClipBoardStr = (string)iData.GetData (DataFormats.Text );

int CurPosition = MyRTBox.SelectionStart ;

MyRTBox.Text = MyRTBox.Text.Substring (0, CurPosition ) + ClipBoardStr + MyRTBox.Text.Substring (CurPosition);

MyRTBox.SelectionStart = CurPosition + ClipBoardStr.Length;

}

}

private void menuItem3_Click(object sender, System.EventArgs e)

{

// MyRTBox.Cut ();

int CurPosition = MyRTBox.SelectionStart ;

Clipboard.SetDataObject (MyRTBox.SelectedText );

MyRTBox.Text = MyRTBox.Text .Substring (0,CurPosition) + MyRTBox.Text .Substring (CurPosition+MyRTBox.SelectedText.Length );

MyRTBox.SelectionStart = CurPosition;

}