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using System;
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;
namespace ListViewEmbeddedControls
{
/// <summary>
/// Zusammenfassung f�r ReadOnlyRichTextBox.
/// </summary>
public class ReadOnlyRichTextBox : RichTextBox
{
public ReadOnlyRichTextBox()
{
ReadOnly=true;
TabStop=false;
SetStyle(ControlStyles.Selectable, false);
}
// Font is overridden because assigning the RichTextBox to a new parent sets
// its Font to the parent's Font and thus loses all formatting of existing RTF content.
protected Font _font = new Font("Arial", 10);
public override Font Font
{
get
{
return _font;
}
set
{
_font = value;
}
}
[ Browsable(false) ]
public new bool ReadOnly
{
get { return true; }
set { }
}
[ Browsable(false) ]
public new bool TabStop
{
get { return false; }
set { }
}
const int WM_SETFOCUS = 0x0007;
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case WM_SETFOCUS:
// We don't want the RichTextBox to be able to receive focus, so just
// pass the focus back to the control it came from.
IntPtr prevCtl = m.WParam;
Control c = Control.FromHandle(prevCtl);
c.Select();
return;
}
base.WndProc (ref m);
}
}
}
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