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DesignerGlyph.OnPaint Method

When overridden in a derived class, performs any tasks required to render the glyph on the activity designer surface.

Namespace:  System.Workflow.ComponentModel.Design
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

'Declaration
Protected MustOverride Sub OnPaint ( _
	graphics As Graphics, _
	activated As Boolean, _
	ambientTheme As AmbientTheme, _
	designer As ActivityDesigner _
)
'Usage
Dim graphics As Graphics 
Dim activated As Boolean 
Dim ambientTheme As AmbientTheme 
Dim designer As ActivityDesigner 

Me.OnPaint(graphics, activated, ambientTheme, _
	designer)

Parameters

graphics
Type: System.Drawing.Graphics

The Graphics to perform fill and drawing tasks.

activated
Type: System.Boolean

true to indicate that the glyph appears on the design surface; otherwise, false.

ambientTheme
Type: System.Workflow.ComponentModel.Design.AmbientTheme

The AmbientTheme to use to access ambient property settings.

designer
Type: System.Workflow.ComponentModel.Design.ActivityDesigner

The ActivityDesigner from which to obtain information about user actions.

OnPaint uses CommentIndicatorPen to draw the bounds of the comment glyph and CommentIndicatorBrush to fill it.

The following code example demonstrates how you can override the OnPaint method. The code customizes how to draw the glyph object on the activity designer with which the glyph is associated.

This code example is part of the Workflow Monitor SDK Sample from the DesignerGlyphProvider.cs file. For more information, see Workflow Monitor.

Protected Overrides Sub OnPaint(ByVal graphics As System.Drawing.Graphics, ByVal activated As Boolean, ByVal ambientTheme As System.Workflow.ComponentModel.Design.AmbientTheme, ByVal designer As System.Workflow.ComponentModel.Design.ActivityDesigner)
    Dim bitmap As Bitmap = AppResources.Executing
    bitmap.MakeTransparent(Color.FromArgb(0, 255, 255))

    If Not bitmap Is Nothing Then
        graphics.DrawImage(bitmap, GetBounds(designer, activated), New Rectangle(Point.Empty, bitmap.Size), GraphicsUnit.Pixel)
    End If 
End Sub

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0
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