Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures
Public _result As Boolean = False
Public _form As PlayCtrlForm = New PlayCtrlForm()
Public _playctrl As PlayCtrl
Public _pcsbform As TestCtrlSubForm
Public Sub RenderersExample()
' reference the play control
_playctrl = _form.PlayCtrl
' input file
Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_SourceVideoOnly.avi")
Try
' create the sub form for renderers listbox
_pcsbform = New TestCtrlSubForm()
AddHandler _pcsbform.Load, AddressOf Form_Load
AddHandler _pcsbform.buttonRefresh.Click, AddressOf Refresh_Click
AddHandler _pcsbform.List.Click, AddressOf List_Click
' set autostart to false
_playctrl.AutoStart = False
' set our source media file
_playctrl.SourceFile = inFile
' show the renderers form
_pcsbform.ShowDialog()
' get the selected renderer index
Dim selectedRenderer As Integer = _playctrl.AudioRenderers.Selection
' set the result to what we expect
_result = (Not _pcsbform.List.SelectedItem Is Nothing AndAlso _playctrl.AudioRenderers.Selection <> -1)
Catch e1 As Exception
_result = False
End Try
End Sub
Private Sub Form_Load(ByVal sender As Object, ByVal e As EventArgs)
' build the audio renderer list
EnumerateRenderers(_playctrl.AudioRenderers, _pcsbform.List)
End Sub
Private Sub List_Click(ByVal sender As Object, ByVal e As EventArgs)
' select the audio renderer
SelectRenderer(_playctrl.AudioRenderers, _pcsbform.List)
End Sub
Private Sub Refresh_Click(ByVal sender As Object, ByVal e As EventArgs)
' refresh audio renderers
RefreshRenderers(_playctrl.AudioRenderers, _pcsbform.List)
End Sub
Private Sub EnumerateRenderers(ByVal Renderers As AudioRenderers, ByVal List As ListBox)
' Build the renderers list box
Dim Selected As Integer = -1
' empty the list box
List.Items.Clear()
' add the available audio renderers to the list box
Dim i As Integer = 0
Do While (i <= (Renderers.Count - 1))
List.Items.Add(Renderers(i))
If Renderers(i).Selected Then
Selected = i
End If
i += 1
Loop
' highlight the current selection
List.SelectedIndex = Selected
End Sub
Private Sub RefreshRenderers(ByVal Renderers As AudioRenderers, ByVal List As ListBox)
Dim SelectedName As String = String.Empty
' save the currently selected renderer's name
If Renderers.Selection >= 0 Then
SelectedName = Renderers(Renderers.Selection).FriendlyName
End If
' refresh the renderer collection
Renderers.Refresh()
' if there was a previously selected renderer, reselect it
If SelectedName <> String.Empty Then
Renderers.Selection = Renderers.IndexOf(SelectedName)
End If
' rebuild the listbox
EnumerateRenderers(Renderers, List)
End Sub
Private Sub SelectRenderer(ByVal Renderers As AudioRenderers, ByVal List As ListBox)
' select the highlighted renderer
Renderers.Selection = Renderers.IndexOf(TryCast(List.Items(List.SelectedIndex), Renderer))
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media"
End Class
using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;
public bool _result = false;
public PlayCtrlForm _form = new PlayCtrlForm();
public PlayCtrl _playctrl;
public TestCtrlSubForm _pcsbform;
public void RenderersExample()
{
// reference the play control
_playctrl = _form.PlayCtrl;
// input file
string inFile =Path.Combine(LEAD_VARS.MediaDir,"PlayCtrl_SourceVideoOnly.avi");
try
{
// create the sub form for renderers listbox
_pcsbform = new TestCtrlSubForm();
_pcsbform.Load += new EventHandler(Form_Load);
_pcsbform.buttonRefresh.Click += new EventHandler(Refresh_Click);
_pcsbform.List.Click += new EventHandler(List_Click);
// set autostart to false
_playctrl.AutoStart = false;
// set our source media file
_playctrl.SourceFile = inFile;
// show the renderers form
_pcsbform.ShowDialog();
// get the selected renderer index
int selectedRenderer = _playctrl.AudioRenderers.Selection;
// set the result to what we expect
_result = (_pcsbform.List.SelectedItem != null && _playctrl.AudioRenderers.Selection != -1);
}
catch (Exception)
{
_result = false;
}
}
void Form_Load(object sender, EventArgs e)
{
// build the audio renderer list
EnumerateRenderers(_playctrl.AudioRenderers, _pcsbform.List);
}
void List_Click(object sender, EventArgs e)
{
// select the audio renderer
SelectRenderer(_playctrl.AudioRenderers, _pcsbform.List);
}
void Refresh_Click(object sender, EventArgs e)
{
// refresh audio renderers
RefreshRenderers(_playctrl.AudioRenderers, _pcsbform.List);
}
void EnumerateRenderers(AudioRenderers Renderers, ListBox List)
{
// Build the renderers list box
int Selected = -1;
// empty the list box
List.Items.Clear();
// add the available audio renderers to the list box
for (int i = 0; (i <= (Renderers.Count - 1)); i++)
{
List.Items.Add(Renderers[i]);
if (Renderers[i].Selected)
{
Selected = i;
}
}
// highlight the current selection
List.SelectedIndex = Selected;
}
void RefreshRenderers(AudioRenderers Renderers, ListBox List)
{
string SelectedName = string.Empty;
// save the currently selected renderer's name
if (Renderers.Selection >= 0)
SelectedName = Renderers[Renderers.Selection].FriendlyName;
// refresh the renderer collection
Renderers.Refresh();
// if there was a previously selected renderer, reselect it
if (SelectedName != string.Empty)
Renderers.Selection = Renderers.IndexOf(SelectedName);
// rebuild the listbox
EnumerateRenderers(Renderers, List);
}
void SelectRenderer(AudioRenderers Renderers, ListBox List)
{
// select the highlighted renderer
Renderers.Selection = Renderers.IndexOf(List.Items[List.SelectedIndex] as Renderer);
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media";
}
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