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AfterDrawingObjects Event

Summary

Occurs during drawing after the objects are drawn.

Syntax

C++

public event EventHandler<AnnPaintEventArgs> AfterDrawingObjects

  
Public Event AfterDrawingObjects As EventHandler(Of AnnPaintEventArgs)

public: 
event EventHandler<AnnPaintEventArgs^>^ AfterDrawingObjects

Event Data

The event handler receives an argument of type AnnPaintEventArgs containing data related to this event. The following AnnPaintEventArgs properties provide information specific to this event.

Property	Description
Graphics	Gets the graphics used to paint.

Remarks

You can prevent the AnnContainer from raising this event by calling DisableDrawObjectEvents. You can re-enable the raising of this event by calling EnableDrawObjectEvents.

Example

This example will draw a hatch brush on top of every object in the container.

using Leadtools; 
using Leadtools.Annotations; 
using Leadtools.Codecs; 
using Leadtools.WinForms; 
 
public void AnnContainer_AfterDrawingObjects(AnnContainer container) 
{ 
   // theContainer is set so that it can be accessed in the container_BeforeDrawingObjects event 
   theContainer = container; 
   container.AfterDrawingObjects += new EventHandler<AnnPaintEventArgs>(container_AfterDrawingObjects); 
} 
 
private void container_AfterDrawingObjects(object sender, AnnPaintEventArgs e) 
{ 
   Graphics graphics = e.Graphics; 
 
   // set the current transform from the container 
   graphics.MultiplyTransform(theContainer.Transform); 
 
   using (Brush br = new HatchBrush(HatchStyle.DiagonalCross, Color.Black, Color.Transparent)) 
   { 
      // enum the objects in the container 
      foreach (AnnObject obj in theContainer.Objects) 
         graphics.FillRectangle(br, obj.BoundingRectangle.ConvertTo(theContainer.UnitConverter, AnnUnit.Pixel).ToRectangleF()); 
   } 
}

Imports Leadtools 
Imports Leadtools.Annotations 
Imports Leadtools.Codecs 
Imports Leadtools.WinForms 
 
Public Sub AnnContainer_AfterDrawingObjects(ByVal container As AnnContainer) 
   ' theContainer is set so that it can be accessed in the container_BeforeDrawingObjects event 
   theContainer = container 
   AddHandler container.AfterDrawingObjects, AddressOf container_AfterDrawingObjects 
End Sub 
 
Private Sub container_AfterDrawingObjects(ByVal sender As Object, ByVal e As AnnPaintEventArgs) 
   Dim graphics As Graphics = e.Graphics 
 
   ' set the current transform from the container 
   graphics.MultiplyTransform(theContainer.Transform) 
 
   Dim br As Brush = New HatchBrush(HatchStyle.DiagonalCross, Color.Black, Color.Transparent) 
   Try 
      ' enum the objects in the container 
      For Each obj As AnnObject In theContainer.Objects 
         graphics.FillRectangle(br, obj.BoundingRectangle.ConvertTo(theContainer.UnitConverter, AnnUnit.Pixel).ToRectangleF()) 
      Next obj 
   Finally 
      CType(br, IDisposable).Dispose() 
   End Try 
End Sub

Requirements

Target Platforms

Reference

AnnContainer Class

AnnContainer Members

Help Version 19.0.2017.10.27

Leadtools.Annotations Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations Namespace

Assemblies