// Constructor
public VideoCaptureDeviceForm( )
{
InitializeComponent( );
// show device list
try
{
// enumerate video devices
videoDevices = new FilterInfoCollection( FilterCategory.VideoInputDevice );
if ( videoDevices.Count == 0 )
throw new ApplicationException( );
// add all devices to combo
foreach ( FilterInfo device in videoDevices )
{
devicesCombo.Items.Add( device.Name );
}
}
catch ( ApplicationException )
{
devicesCombo.Items.Add( "No local capture devices" );
devicesCombo.Enabled = false;
okButton.Enabled = false;
}
devicesCombo.SelectedIndex = 0;
}
public MainForm()
{
InitializeComponent();
camera1FpsLabel.Text = string.Empty;
camera2FpsLabel.Text = string.Empty;
// show device list
try
{
// enumerate video devices
videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoDevices.Count == 0)
{
throw new Exception();
}
for (int i = 1, n = videoDevices.Count; i <= n; i++)
{
string cameraName = i + " : " + videoDevices[i - 1].Name;
camera1Combo.Items.Add(cameraName);
camera2Combo.Items.Add(cameraName);
}
// check cameras count
if (videoDevices.Count == 1)
{
camera2Combo.Items.Clear();
camera2Combo.Items.Add("Only one camera found");
camera2Combo.SelectedIndex = 0;
camera2Combo.Enabled = false;
}
else
{
camera2Combo.SelectedIndex = 1;
}
camera1Combo.SelectedIndex = 0;
}
catch
{
startButton.Enabled = false;
camera1Combo.Items.Add("No cameras found");
camera2Combo.Items.Add("No cameras found");
camera1Combo.SelectedIndex = 0;
camera2Combo.SelectedIndex = 0;
camera1Combo.Enabled = false;
camera2Combo.Enabled = false;
}
}
// Main form is loaded
private void MainForm_Load( object sender, EventArgs e )
{
// enumerate video devices
videoDevices = new FilterInfoCollection( FilterCategory.VideoInputDevice );
if ( videoDevices.Count != 0 )
{
// add all devices to combo
foreach ( FilterInfo device in videoDevices )
{
devicesCombo.Items.Add( device.Name );
}
}
else
{
devicesCombo.Items.Add( "No DirectShow devices found" );
}
devicesCombo.SelectedIndex = 0;
EnableConnectionControls( true );
}
