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ShowDialog Method

Summary

Displays the specified property's dialog.

Syntax

C++/CLI

public void ShowDialog( 
   ProcessorDlg Dialog, 
   IWin32Window hWnd 
)

public: 
void ShowDialog(  
   ProcessorDlg Dialog, 
   IWin32Window^ hWnd 
)

Parameters

Dialog
A ProcessorDlg enumeration value that specifies which dialog to show.

hWnd
Value that specifies the dialog owner's window handle.

Remarks

Displays the specified property's dialog. If the method fails, an error is raised. For more information, refer to the Error Codes.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
 
public void HasDialogExample() 
{ 
   // 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 index of lead video Stabilizer transform 
      int nIndex = playctrl.VideoProcessors.IndexOf("{E2B6EDDE-38C5-11D5-91F6-00104BDB8FF9}"); 
 
      // add the lead video Stabilizer transform to the selected video processors 
      playctrl.SelectedVideoProcessors.Add(playctrl.VideoProcessors[nIndex]); 
 
      // verify the processor was added correctly 
      nIndex = playctrl.SelectedVideoProcessors.Count - 1; 
      Processor videoProcessor = playctrl.SelectedVideoProcessors[nIndex]; 
      if (!videoProcessor.FriendlyName.Contains("Stabilizer") || videoProcessor.Name != "{E2B6EDDE-38C5-11D5-91F6-00104BDB8FF9}") 
         throw new Exception("Video Stabilizer Transform not added successfully"); 
 
      // The HasDialog method tells us that the object 
      // can display the desired dialog. 
      // check to see if the processor dialog can be displayed 
      if (playctrl.SelectedVideoProcessors[0].HasDialog(ProcessorDlg.Properties)) 
      { 
         // now show it to change some settings 
         playctrl.SelectedVideoProcessors[0].ShowDialog(ProcessorDlg.Properties, _form); 
         _result = true; 
      } 
 
      // start the playback 
      playctrl.Run(); 
 
      // 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(); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

Processor Class

Processor 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