public AudioRenderers AudioRenderers { get; }
public:
property AudioRenderers^ AudioRenderers {
AudioRenderers^ get();
}
An AudioRenderers collection object representing the available audio renderers.
The AudioRenderers object is used to enumerate the available audio renderers, and to select a renderer for audio output. For more information, refer to AudioRenderers.
using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public CaptureCtrl _capturectrl;
public TestCtrlSubForm _csbform;
public void RenderersExample()
{
// reference the capture control
_capturectrl = _form.CaptureCtrl;
// input file
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_Source.avi");
try
{
// create the sub form for renderers listbox
_csbform = new TestCtrlSubForm();
_csbform.Load += new EventHandler(Form_Load);
_csbform.buttonRefresh.Click += new EventHandler(Refresh_Click);
_csbform.List.Click += new EventHandler(List_Click);
// show the renderers form
_csbform.ShowDialog();
// get the selected renderer index
int selectedRenderer = _capturectrl.AudioRenderers.Selection;
// set the result to what we expect
_result = (_csbform.List.SelectedItem != null && _capturectrl.AudioRenderers.Selection != -1);
}
catch (Exception)
{
_result = false;
}
}
void Form_Load(object sender, EventArgs e)
{
// build the audio renderer list
EnumerateRenderers(_capturectrl.AudioRenderers, _csbform.List);
}
void List_Click(object sender, EventArgs e)
{
// select the audio renderer
SelectRenderer(_capturectrl.AudioRenderers, _csbform.List);
}
void Refresh_Click(object sender, EventArgs e)
{
// refresh audio renderers
RefreshRenderers(_capturectrl.AudioRenderers, _csbform.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:\LEADTOOLS22\Media";
}
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