/// <summary>
/// Capture the supplied Window
/// </summary>
/// <param name="windowToCapture">Window to capture</param>
/// <param name="captureForWindow">The capture to store the details</param>
/// <param name="windowCaptureMode">What WindowCaptureMode to use</param>
/// <returns></returns>
public static ICapture CaptureWindow(WindowDetails windowToCapture, ICapture captureForWindow, WindowCaptureMode windowCaptureMode)
{
if (captureForWindow == null)
{
captureForWindow = new Capture();
}
Rectangle windowRectangle = windowToCapture.WindowRectangle;
if (windowToCapture.Iconic)
{
// Restore the window making sure it's visible!
windowToCapture.Restore();
}
// When Vista & DWM (Aero) enabled
bool dwmEnabled = DWM.isDWMEnabled();
// get process name to be able to exclude certain processes from certain capture modes
Process process = windowToCapture.Process;
bool isAutoMode = windowCaptureMode == WindowCaptureMode.Auto;
// For WindowCaptureMode.Auto we check:
// 1) Is window IE, use IE Capture
// 2) Is Windows >= Vista & DWM enabled: use DWM
// 3) Otherwise use GDI (Screen might be also okay but might lose content)
if (isAutoMode)
{
if (conf.IECapture && windowToCapture.ClassName == "IEFrame")
{
try
{
ICapture ieCapture = IECaptureHelper.CaptureIE(captureForWindow);
if (ieCapture != null)
{
return(ieCapture);
}
}
catch (Exception ex)
{
LOG.WarnFormat("Problem capturing IE, skipping to normal capture. Exception message was: {0}", ex.Message);
}
}
// Take default screen
windowCaptureMode = WindowCaptureMode.Screen;
// Change to GDI, if allowed
if (conf.isGDIAllowed(process))
{
if (!dwmEnabled && isWPF(process))
{
// do not use GDI, as DWM is not enabled and the application uses PresentationFramework.dll -> isWPF
LOG.InfoFormat("Not using GDI for windows of process {0}, as the process uses WPF", process.ProcessName);
}
else
{
windowCaptureMode = WindowCaptureMode.GDI;
}
}
// Change to DWM, if enabled and allowed
if (dwmEnabled)
{
if (conf.isDWMAllowed(process))
{
windowCaptureMode = WindowCaptureMode.Aero;
}
}
}
else if (windowCaptureMode == WindowCaptureMode.Aero || windowCaptureMode == WindowCaptureMode.AeroTransparent)
{
if (!dwmEnabled || !conf.isDWMAllowed(process))
{
// Take default screen
windowCaptureMode = WindowCaptureMode.Screen;
// Change to GDI, if allowed
if (conf.isGDIAllowed(process))
{
windowCaptureMode = WindowCaptureMode.GDI;
}
}
}
else if (windowCaptureMode == WindowCaptureMode.GDI && !conf.isGDIAllowed(process))
{
// GDI not allowed, take screen
windowCaptureMode = WindowCaptureMode.Screen;
}
LOG.InfoFormat("Capturing window with mode {0}", windowCaptureMode);
bool captureTaken = false;
// Try to capture
while (!captureTaken)
{
if (windowCaptureMode == WindowCaptureMode.GDI)
{
ICapture tmpCapture = null;
if (conf.isGDIAllowed(process))
{
tmpCapture = windowToCapture.CaptureWindow(captureForWindow);
}
if (tmpCapture != null)
{
captureForWindow = tmpCapture;
captureTaken = true;
}
else
{
// A problem, try Screen
windowCaptureMode = WindowCaptureMode.Screen;
}
}
else if (windowCaptureMode == WindowCaptureMode.Aero || windowCaptureMode == WindowCaptureMode.AeroTransparent)
{
ICapture tmpCapture = null;
if (conf.isDWMAllowed(process))
{
tmpCapture = windowToCapture.CaptureDWMWindow(captureForWindow, windowCaptureMode, isAutoMode);
}
if (tmpCapture != null)
{
captureForWindow = tmpCapture;
captureTaken = true;
}
else
{
// A problem, try GDI
windowCaptureMode = WindowCaptureMode.GDI;
}
}
else
{
// Screen capture
windowRectangle.Intersect(captureForWindow.ScreenBounds);
try
{
captureForWindow = WindowCapture.CaptureRectangle(captureForWindow, windowRectangle);
captureTaken = true;
}
catch (Exception e)
{
LOG.Error("Problem capturing", e);
return(null);
}
}
}
if (captureForWindow != null && windowToCapture != null)
{
captureForWindow.CaptureDetails.Title = windowToCapture.Text;
((Bitmap)captureForWindow.Image).SetResolution(captureForWindow.CaptureDetails.DpiX, captureForWindow.CaptureDetails.DpiY);
}
return(captureForWindow);
}