System.Drawing Out of Memory Exception

Question

My application graphics engine throws these exceptions. They are all consumed by an empty catch block. In the early days I found one that was not trapped (associated with

Answer 1

I tried the solution 'Joe White' suggested and that was it. It threw a OutOfMemoryException because the rectangle's width and height were 0. In my case the window was minimized when the exception occurred.

Here is an example;

  Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)

    Using e
        ##Add conditions to avoid OutOfMemoryException##
        If (Not ClientRectangle.Width = 0) And (Not ClientRectangle.Height = 0) Then
            Using rect As GraphicsPath = New GraphicsPath()
                rect.AddRectangle(ClientRectangle)

                Using gb As New PathGradientBrush(rect)
                    gb.WrapMode = WrapMode.Tile
                    gb.SurroundColors = New Color() {GradientColors(1), GradientColors(0), GradientColors(2)}
                    gb.CenterColor = GradientColors(0)
                    gb.SetSigmaBellShape(0.5F)
                    e.Graphics.FillPath(gb, rect)
                End Using
            End Using
        End If
    End Using

End Sub