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ScaleWidth Property

Summary

Specifies the width of the client area of the control.

Syntax

C++/CLI

public virtual float ScaleWidth { get; set; }

public: 
virtual property float ScaleWidth { 
   float get(); 
   void set (    float ); 
}

Property Value

A value representing the width.

Remarks

Assigning a value to this property does not change the actual width of the control, instead the current width is expressed using the value provided. This makes it possible to use a custom coordinate system. For example, if the ScaleWidth and ScaleHeight are both set to 100; then all coordinates can be expressed as percentage offsets.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
 
public void VideoWindowExample() 
{ 
   // reference the play control 
   PlayCtrl playctrl = _form.PlayCtrl; 
 
   // input file 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.avi"); 
 
   try 
   { 
      // turn off auto start 
      playctrl.AutoStart = false; 
 
      // set the source file 
      playctrl.SourceFile = inFile; 
 
      // get the video window handle 
      IntPtr handle = playctrl.VideoWindow; 
 
      // get the video and video window info 
      float vwt = playctrl.VideoWindowTop; 
      float vwl = playctrl.VideoWindowLeft; 
      float vwh = playctrl.VideoWindowHeight; 
      float vww = playctrl.VideoWindowWidth; 
      float vh = playctrl.VideoHeight; 
      float vw = playctrl.VideoWidth; 
 
      ScaleMode scm = playctrl.ScaleMode; 
      float sch = playctrl.ScaleHeight; 
      float scw = playctrl.ScaleWidth; 
      float sct = playctrl.ScaleTop; 
      float scl = playctrl.ScaleLeft; 
 
      SizeMode sm = playctrl.VideoWindowSizeMode; 
      bool isFullScreen = playctrl.FullScreenMode; 
 
      // check sizes for sizemode setting 
      if (vw > vww && vh > vwh && sm != SizeMode.Fit) 
         playctrl.VideoWindowSizeMode = SizeMode.Fit; 
      else if (vw < vww && vh < vwh) 
         playctrl.VideoWindowSizeMode = SizeMode.Stretch; 
 
      // set the result to what we expect 
      _result = (handle != null); 
 
      // run the video 
      playctrl.Run(); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
 
   // we'll loop on the state and pump messages for this example. 
   // but you should not need to if running from a Windows Forms application. 
   while (playctrl.State == PlayState.Running) 
      Application.DoEvents(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

PlayCtrl Class

PlayCtrl Members

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Help Version 23.0.2024.2.29

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies