Creating a MediaFoundation Player Application

Take the following steps to create and run a multimedia player application using the LEADTOOLS Media Foundation PlayCtrl control.

1. Start Visual Studio .NET.

2. Choose File->New->Project... from the menu.

3. In the New Project dialog box, choose either "Visual C# Projects" or "VB Projects" in the Projects Type List, and choose "Windows Application " in the Templates List.

4. Type the project name as "Multimedia Player" in the Project Name field, and then choose OK. If desired, type a new location for your project or select a directory using the Browse button, and then choose OK.

5. In the "Solution Explorer" window, right-click on the "References" folder, and select "Add Reference..." from the context menu. In the "Add Reference" dialog box, select the ".NET" tab and select Leadtools.MediaFoundation and click OK. If this DLL does not appear under the .NET tab, you will need select the Browse tab and add it from the "<LEADTOOLS_INSTALLDIR>\Bin\Dotnet\Win32 " folder, by selecting the following DLL:

   • Leadtools.MediaFoundation.dll

   After browsing, click the Select button and then press the OK button to add the above DLL to the application.

6. Make sure Form1 is in design view. Go to the toolbox (View->Toolbox) and drag and drop a PlayCtrl control on the form. NOTE: If you do not have PlayCtrl in your toolbox, select Tools->Choose Toolbox Items from the menu. Click Browse and then select Leadtools.MediaFoundation.dll from "<LEADTOOLS_INSTALLDIR>\Bin\Dotnet\Win32" and then click Open and then click OK. After adding it to the form, set the following properties on the play control:

   Property	Value
   Name	_playctrl
   Anchor	Top, Bottom, Left, Right
   AutoStart	false

7. Go to the toolbox (View->Toolbox) and drag and drop a ProgressBar control on the form (below the play control) and set the following properties:

   Property	Value
   Name	_progress
   Anchor	Bottom, Left, Right
   Maximum	10000
   Step	1

8. Go to the toolbox (View->Toolbox) and drag and drop a Button control to the bottom of the form and set the following properties:

   Property	Value
   Name	_buttonPlay
   Text	Play
   Anchor	Bottom, Right

9. Switch Form1 to code view (right-click Form1 in the solution explorer then select View Code) and add the following lines at the beginning of the file:

   C#

   VB
   Imports Leadtools.MediaFoundation 
                    
        

   using Leadtools.MediaFoundation; 
                    
        

10. Declare the following private variable:

    C#

    VB
    Private _sourceFile As String 
                     
         

    private string _sourceFile; 
                     
         

11. Add an event handler to the Form1 Load event and code it as follows:

    C#

    VB
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
       _sourceFile = @"<LEADTOOLS_INSTALLDIR>\Media\DaDa_H264.mp4" 
    End Sub 
                     
         

    private void Form1_Load(object sender, System.EventArgs e) 
    { 
       _sourceFile = @"<LEADTOOLS_INSTALLDIR>\Media\DaDa_H264.mp4"; 
    } 
                     
         

12. Add an event handler to the _playctrl TrackingPositionChanged event and code it as follows:

    C#

    VB
    Private Sub _playctrl_TrackingPositionChanged(ByVal sender As System.Object, ByVal e As TrackingPositionChangedEventArgs) Handles _playctrl.TrackingPositionChanged 
       _progress.Value = e.position 
    End Sub 
                     
         

    private void _playctrl_TrackingPositionChanged(object sender, TrackingPositionChangedEventArgs e) 
    { 
       _progress.Value = e.position; 
    } 
                     
         

13. Add an event handler to the _buttonPlay Click event and code it as follows:

    C#

    VB
    Private Sub _buttonPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _buttonPlay.Click 
       Try 
          _playctrl.SourceFile = _sourceFile 
          _playctrl.Run 
       Catch ex As Exception 
          MessageBox.Show(ex.Message) 
       End Try 
    End Sub    
                     
         

    private void _buttonPlay_Click(object sender, System.EventArgs e) 
    { 
       try 
       { 
          _playctrl.SourceFile = _sourceFile; 
          _playctrl.Run(); 
       } 
       catch (Exception ex) 
       { 
          MessageBox.Show(this, ex.Message); 
       } 
    } 
                     
         

14. Build, and Run the program to test it.