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DrawObject Method

Summary

Draws this AnnObject on the specified surface.

Syntax

C++

protected virtual void DrawObject( 
   Graphics graphics 
)

  
Protected Overridable Sub DrawObject( _ 
   ByVal graphics As Graphics _ 
)

protected: 
virtual void DrawObject(  
   Graphics^ graphics 
)

Parameters

graphics
The Graphics surface on which to draw this AnnObject.

Remarks

This method is called internally by the annotation framework whenever the Draw method is called. You do not need to call this method directly.

If an object is invisible (Visible is set to false), it will not draw itself.

By default, this method will draw the same graphics path returned from the GetGraphicsPath method when the AnnGetGraphicsPathMode is set to DrawObject. For simple objects such as lines and rectangles, this is sufficient. More complex objects that contain elements that either cannot be expressed by a graphics path (such as images) or elements that are too expensive to be expressed by a path (such as text) override this method to draw the object directly.

This method has the following logic:

Calls the BeginDraw method that determines if the object is visible and sets up the object's PhysicalTransform matrix into the g graphics
Calls GetGraphicsPath with AnnGetGraphicsPathMode set to DrawObject to get the graphics path that represents this object
Uses the AnnDrawable.HasBrush method to check if this object implements a brush and if so, fills the interior of the graphics path with the System.Drawing.Brush
Uses the AnnDrawable.HasPen method to check if this object implements a pen and if so, draws the outside of the graphics path with the System.Drawing.Pen
Calls EndDraw to reset the g transformation

Requirements

Target Platforms

Reference

AnnObject Class

AnnObject Members

Help Version 19.0.2017.10.27

Leadtools.Annotations Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations Namespace

Assemblies