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troubleshooting Question

Setting background image.

Avatar of Kinger247
Kinger247 asked on
.NET ProgrammingVisual Basic.NET
2 Comments1 Solution323 ViewsLast Modified:
Hi all,

Via the onPaint event I’m trying to draw some boxes/text on a control over the selected background image.
But I need to clear the control before each paint event to stop blurring of text, but this stops me showing the background image.

How can I get around this or should I say “do it correctly” ?

I want to be able to use the controls BackgroundImage / BackgroundImageLayout properties.

My code below ...

Thanks in advance

  Public Overrides Property BackgroundImage() As Image
      Return _BackgroundImage
    End Get
    Set(ByVal value As Image)
      _BackgroundImage = value
      MyBase.BackgroundImage = value
    End Set
  End Property

  Private _BackgroundImage As Image = Nothing

  Private Sub ucGraph_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint

    BackBuffer = New Bitmap(Me.ClientSize.Width, Me.ClientSize.Height)
    Using gr As Graphics = Graphics.FromImage(BackBuffer)
      gr.SmoothingMode = SmoothingMode.HighQuality
      gr.InterpolationMode = InterpolationMode.High

      MyBase.BackgroundImage = _BackgroundImage

      'Draw everything else here .......

    End Using

    e.Graphics.DrawImageUnscaled(BackBuffer, 0, 0)
  End Sub
Avatar of Mike Tomlinson
Mike TomlinsonFlag of United States of America imageHigh School Computer Science, Computer Applications, Digital Design, and Mathematics Teacher
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