BeginUpdate Method

Summary

Prevents the control from drawing until the EndUpdate method is called.

Syntax

C#
C++/CLI
C++
public virtual void BeginUpdate() 
public: 
virtual void BeginUpdate();  
public:  
   virtual void BeginUpdate() 

Remarks

When you want to disable repainting of the RasterPictureBox, call BeginUpdate. When you are ready to resume painting call EndUpdate.

Example

This sample zooms out on the image, keeping it centered. The resulting transform is displayed in the console.

C#
using Leadtools.WinForms; 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
 
public void RasterPictureBox_BeginUpdate(RasterPictureBox viewer) 
{ 
   viewer.BeginUpdate();  // suspend painting of the image  
   viewer.SizeMode = RasterPictureBoxSizeMode.CenterImage; 
   viewer.UseDpi = false; 
   viewer.EndUpdate(); // start painting of the image  
} 

Requirements

Target Platforms

See Also

Reference

RasterPictureBox Class

RasterPictureBox Members

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.