/// <summary>
/// Enums the windows.
/// </summary>
/// <param name="hWnd">The h WND.</param>
/// <param name="lParam">The l parameter.</param>
/// <returns></returns>
protected bool EnumWindows(IntPtr hWnd, IntPtr lParam)
{
int size = GetWindowTextLength(hWnd);
if (size++ > 0 && IsWindowVisible(hWnd))
{
StringBuilder sb = new StringBuilder(size);
GetWindowText(hWnd, sb, size);
CaptureSettings captureSettings = new CaptureSettings
{
m_Adapter = 0,
m_Output = 0
};
RECT rct;
GetWindowRect(hWnd, out rct);
captureSettings.m_Rect = new DsRect(rct.Left, rct.Top, rct.Right, rct.Bottom);
CaptureItem captureItem = new CaptureItem(sb.ToString(), captureSettings);
captureMethodCombo.Items.Add(captureItem);
}
return(true);
}
/// <summary>
/// Initializes the capture monitors.
/// </summary>
private void InitializeCaptureMonitors()
{
var factory = new Factory1();
for (int i = 0; i < factory.GetAdapterCount(); i++)
{
for (int j = 0; j < factory.GetAdapter(i).GetOutputCount(); j++)
{
var output = factory.GetAdapter(i).GetOutput(j);
CaptureSettings settings = new CaptureSettings();
settings.m_Adapter = i;
settings.m_Output = j;
settings.m_Rect = new DsRect(
output.Description.DesktopBounds.Left,
output.Description.DesktopBounds.Top,
output.Description.DesktopBounds.Right,
output.Description.DesktopBounds.Bottom
);
CaptureItem captureItem = new CaptureItem(output.Description.DeviceName, settings);
captureMethodCombo.Items.Add(captureItem);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DesktopStream"/> class.
/// </summary>
/// <param name="_name">The _name.</param>
/// <param name="_filter">The _filter.</param>
public DesktopStream(string _name, BaseSourceFilter _filter) : base(_name, _filter)
{
m_Factory = new Factory1();
m_nAvgTimePerFrame = UNITS / 30; // 30 FPS
m_lLastSampleTime = 0L;
m_CaptureSettings = m_DefaultSettings;
ChangeCaptureSettings(m_CaptureSettings);
}
/// <summary>
/// Handles the SelectedIndexChanged event of the captureMethodCombo control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void captureMethodCombo_SelectedIndexChanged(object sender, EventArgs e)
{
CaptureSettings newSettings = ((CaptureItem)captureMethodCombo.SelectedItem).m_CaptureSettings;
adapterTxtBox.Text = newSettings.m_Adapter.ToString();
outputTxtBox.Text = newSettings.m_Output.ToString();
topTextBox.Text = newSettings.m_Rect.top.ToString();
leftTextBox.Text = newSettings.m_Rect.left.ToString();
rightTextBox.Text = newSettings.m_Rect.right.ToString();
bottomTextBox.Text = newSettings.m_Rect.bottom.ToString();
Dirty = true;
}
/// <summary>
/// Changes the capture settings.
/// </summary>
/// <param name="newSettings">The new settings.</param>
/// <returns></returns>
public HRESULT ChangeCaptureSettings(CaptureSettings newSettings)
{
lock (m_Filter.FilterLock)
{
if (m_Filter.IsActive)
{
return(VFW_E_WRONG_STATE);
}
m_CaptureSettings = newSettings;
if (m_Adapter != null)
{
m_Adapter.Dispose();
}
m_Adapter = m_Factory.GetAdapter1(m_CaptureSettings.m_Adapter);
if (m_Adapter == null)
{
return(E_POINTER);
}
if (m_Device != null)
{
m_Device.Dispose();
}
m_Device = new Device(m_Adapter);
if (m_Device == null)
{
return(E_POINTER);
}
if (m_Output != null)
{
m_Output.Dispose();
}
m_Output = m_Adapter.GetOutput(m_CaptureSettings.m_Output).QueryInterface <Output1>();
if (m_Output == null)
{
return(E_POINTER);
}
Texture2DDescription textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = m_nWidth,
Height = m_nHeight,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Staging
};
if (m_ScreenTexture != null)
{
m_ScreenTexture.Dispose();
}
m_ScreenTexture = new Texture2D(m_Device, textureDesc);
if (m_ScreenTexture == null)
{
return(E_POINTER);
}
if (m_DuplicatedOutput != null)
{
m_DuplicatedOutput.Dispose();
}
m_DuplicatedOutput = m_Output.DuplicateOutput(m_Device);
if (m_DuplicatedOutput == null)
{
return(E_POINTER);
}
return((HRESULT)ReconnectPin());
}
}
/// <summary>
/// Changes the capture settings.
/// </summary>
/// <param name="newSettings">The new settings.</param>
/// <returns></returns>
public HRESULT ChangeCaptureSettings(CaptureSettings newSettings)
{
return(((DesktopStream)Pins[0]).ChangeCaptureSettings(newSettings));
}
/// <summary>
/// Initializes a new instance of the <see cref="CaptureItem"/> class.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="settings">The settings.</param>
public CaptureItem(string name, CaptureSettings settings)
{
m_Name = name;
m_CaptureSettings = settings;
}
