public ImageCaptureWindow(System.Drawing.Rectangle rect, AreaSelection areaSelection)
{
InitializeComponent();
MouseUp += OnMouseUp;
MouseDown += OnMouseDown;
MouseMove += OnMouseMove;
Loaded += OnMainWindowLoaded;
_scalor = DpiUtilities.GetVirtualPixelScale(this);
_areaSelection = areaSelection;
var monitors = _areaSelection.GetMonitorsInformation();
_screenShotImage = new ScreenshotImage();
_screenScalor = DpiUtilities.GetScreenScalingFactor();
_screenShotImage.SnapShot(rect, _screenScalor);
WindowStartupLocation = WindowStartupLocation.Manual;
SourceInitialized += (sender, e) =>
{
IntPtr hWnd = new WindowInteropHelper(this).Handle;
NativeMethods.SetWindowPos(hWnd, (IntPtr)NativeMethods.SetWindowPosInsertAfter.HWND_TOP, rect.Left, rect.Top, rect.Width, rect.Height, 0);
};
var bmDesktopSource = ScreenCapture.GetBitmapSource(_screenShotImage.ScreenSnapshotImage);
BackgroundImage.Fill = new ImageBrush(bmDesktopSource);
// MagnifierBackgroundImage.Source = bmDesktopSource;
}
public MonitorInformation GetMonitorInformation(IntPtr hMonitor)
{
if (_monitorInfoCache.ContainsKey(hMonitor))
{
return(_monitorInfoCache[hMonitor]);
}
if (hMonitor == IntPtr.Zero)
{
// Get handle to the default monitor
const int MONITOR_DEFAULTTOPRIMARY = 0x00000001;
hMonitor = NativeMethods.MonitorFromWindow(IntPtr.Zero, MONITOR_DEFAULTTOPRIMARY);
if (_monitorInfoCache.ContainsKey(hMonitor))
{
_monitorInfoCache[IntPtr.Zero] = _monitorInfoCache[hMonitor];
return(_monitorInfoCache[hMonitor]);
}
}
var monitorInfo = NativeMethods.MONITORINFOEX.New();
if (!NativeMethods.GetMonitorInfoEx(hMonitor, ref monitorInfo))
{
_monitorInfoCache[hMonitor] = null;
return(null);
}
System.Diagnostics.Trace.WriteLine("Monitor:\"" + monitorInfo.deviceName + "\" Handle:" + hMonitor
+ " Left:" + monitorInfo.rcMonitor.left + " Top:" + monitorInfo.rcMonitor.top
+ " Right:" + monitorInfo.rcMonitor.right + " Bottom:" + monitorInfo.rcMonitor.bottom);
UInt32 effectiveDPIx, effectiveDPIy;
//GetDpiForMonitor(hMonitor, MONITOR_DPI_TYPE.MDT_Effective_DPI, out effectiveDPIx, out effectiveDPIy);
DpiUtilities.GetMonitorEffectiveDpi(hMonitor, out effectiveDPIx, out effectiveDPIy);
System.Diagnostics.Trace.WriteLine("Effective DPI:" + effectiveDPIx + " " + effectiveDPIy);
//UInt32 rawDPIx, rawDPIy;
//GetDpiForMonitor(hMonitor, MONITOR_DPI_TYPE.MDT_Raw_DPI, out rawDPIx, out rawDPIy);
//System.Diagnostics.Trace.WriteLine("Raw DPI:" + rawDPIx + " " + rawDPIy);
var monitorInformation = new MonitorInformation()
{
deviceName = monitorInfo.deviceName,
isPrimary = (monitorInfo.dwFlags & NativeMethods.MONITORINFOF_PRIMARY) != 0,
rcMonitor = monitorInfo.rcMonitor,
rcWork = monitorInfo.rcWork,
scalingFactor = DpiUtilities.GetScreenScalingFactor(monitorInfo.deviceName),
dpiX = effectiveDPIx,
dpiY = effectiveDPIy,
};
_monitorInfoCache[hMonitor] = monitorInformation;
if (monitorInformation.isPrimary && !_monitorInfoCache.ContainsKey(IntPtr.Zero))
{
_monitorInfoCache[IntPtr.Zero] = monitorInformation;
}
return(monitorInformation);
}