How to change the background color of a rich text box when it is disabled?

Question

Whenever I set the RichTextBox.Enabled property to false, its background color is automatically set to gray as it is set to the color in system color which is s

Answer 1

Create a Custom Richtextbox as below This will produce a Richtextbox with a transparent Backcolor. You can then place this control on a suitably colored panel.

Public Class MyRichTextBox
Inherits RichTextBox
 _
Shared Function LoadLibrary(ByVal lpFileName As String) As IntPtr
End Function
Protected Overloads Overrides ReadOnly Property CreateParams() As CreateParams
    Get
        Dim prams As CreateParams = MyBase.CreateParams
        If LoadLibrary("msftedit.dll") <> IntPtr.Zero Then
            prams.ExStyle = prams.ExStyle Or &H20 'Makes Transparent
            prams.ClassName = "RICHEDIT50W"
        End If
        Return prams
    End Get
End Property