Creating a Media Foundation Player Application

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

Start Visual Studio.
Choose File->New->Project... from the menu.
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.
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.
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\Dotnet4\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.

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\Dotnet4\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

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

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

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:
```
vb 
Imports Leadtools.MediaFoundation 
```
C#
```
using Leadtools.MediaFoundation; 
```

Declare the following private variable:

vb 
Private _sourceFile As String

private string _sourceFile;

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

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"; 
}

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

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; 
}

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

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); 
   } 
}