/// <summary>
/// Captures the screen containing mouse pointer.
/// </summary>
/// <param name="includeCursor">
/// <c>true</c> to capture the mouse pointer; otherwise, <c>false</c>.
/// </param>
/// <returns>
/// The snapshot of the current screen.
/// </returns>
private static Bitmap GetCurrentScreenImage(bool includeCursor)
{
POINT screenId;
MONITORINFOEX monitorInfo = new MONITORINFOEX();
if (NativeMethods.GetCursorPos(out screenId) && NativeMethods.GetMonitorInfoW(NativeMethods.MonitorFromPoint(screenId, NativeMethods.MONITOR_DEFAULTTONEAREST), monitorInfo))
{
int width = monitorInfo.rcMonitor.Right - monitorInfo.rcMonitor.Left;
int height = monitorInfo.rcMonitor.Bottom - monitorInfo.rcMonitor.Top;
Bitmap outputBitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
using (Graphics outputGraphics = Graphics.FromImage(outputBitmap))
{
using (DeviceContext sourceDC = new DeviceContext(new string(monitorInfo.szDevice)))
{
IntPtr outputDC = outputGraphics.GetHdc();
try
{
NativeMethods.BitBlt(new HandleRef(outputGraphics, outputDC), width, height, new HandleRef(sourceDC, sourceDC.Handle), 0, 0);
if (includeCursor)
{
CURSORINFO cursorInfo;
cursorInfo.cbSize = Marshal.SizeOf(typeof(CURSORINFO));
if (NativeMethods.GetCursorInfo(out cursorInfo) && (cursorInfo.flags == NativeMethods.CURSOR_SHOWING))
{
using (IconData icon = new IconData(cursorInfo.hCursor))
{
NativeMethods.DrawItem(new HandleRef(outputGraphics, outputDC), cursorInfo.ptScreenPos.X - monitorInfo.rcMonitor.Left - icon.HotSpotX, cursorInfo.ptScreenPos.Y - monitorInfo.rcMonitor.Top - icon.HotSpotY, new HandleRef(icon, cursorInfo.hCursor));
}
}
}
return outputBitmap;
}
finally
{
outputGraphics.ReleaseHdc();
}
}
}
}
return null;
}
private static Bitmap GetVirtualScreenImage(bool includeCursor)
{
RECT virtualScreenBounds = NativeMethods.GetVirtualScreenBounds();
int width = virtualScreenBounds.Right - virtualScreenBounds.Left;
int height = virtualScreenBounds.Bottom - virtualScreenBounds.Top;
Bitmap outputBitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
using (Graphics outputGraphics = Graphics.FromImage(outputBitmap))
{
outputGraphics.Clear(SystemColors.Desktop);
using (DeviceContext sourceDC = new DeviceContext())
{
IntPtr outputDC = outputGraphics.GetHdc();
try
{
NativeMethods.BitBlt(new HandleRef(outputGraphics, outputDC), width, height, new HandleRef(sourceDC, sourceDC.Handle), virtualScreenBounds.Left, virtualScreenBounds.Top);
if (includeCursor)
{
CURSORINFO cursorInfo;
cursorInfo.cbSize = Marshal.SizeOf(typeof(CURSORINFO));
if (NativeMethods.GetCursorInfo(out cursorInfo) && (cursorInfo.flags == NativeMethods.CURSOR_SHOWING))
{
using (IconData icon = new IconData(cursorInfo.hCursor))
{
NativeMethods.DrawItem(new HandleRef(outputGraphics, outputDC), cursorInfo.ptScreenPos.X - virtualScreenBounds.Left - icon.HotSpotX, cursorInfo.ptScreenPos.Y - virtualScreenBounds.Top - icon.HotSpotY, new HandleRef(icon, cursorInfo.hCursor));
}
}
}
}
finally
{
outputGraphics.ReleaseHdc();
}
}
}
return outputBitmap;
}
