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Screenshot.cs
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Screenshot.cs
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#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (c) 2007-2017 ShareX Team
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at <http://www.gnu.org/licenses/>.
*/
#endregion License Information (GPL v3)
using ShareX.HelpersLib;
using System;
using System.Drawing;
using System.Drawing.Imaging;
namespace ShareX.ScreenCaptureLib
{
public partial class Screenshot
{
public bool CaptureCursor { get; set; } = false;
public bool CaptureClientArea { get; set; } = false;
public bool RemoveOutsideScreenArea { get; set; } = true;
public bool CaptureShadow { get; set; } = false;
public int ShadowOffset { get; set; } = 20;
public bool AutoHideTaskbar { get; set; } = false;
public Image CaptureRectangle(Rectangle rect)
{
if (RemoveOutsideScreenArea)
{
Rectangle bounds = CaptureHelpers.GetScreenBounds();
rect = Rectangle.Intersect(bounds, rect);
}
return CaptureRectangleNative(rect, CaptureCursor);
}
public Image CaptureFullscreen()
{
Rectangle bounds = CaptureHelpers.GetScreenBounds();
return CaptureRectangle(bounds);
}
public Image CaptureWindow(IntPtr handle)
{
if (handle.ToInt32() > 0)
{
Rectangle rect;
if (CaptureClientArea)
{
rect = NativeMethods.GetClientRect(handle);
}
else
{
rect = CaptureHelpers.GetWindowRectangle(handle);
}
bool isTaskbarHide = false;
try
{
if (AutoHideTaskbar)
{
isTaskbarHide = NativeMethods.SetTaskbarVisibilityIfIntersect(false, rect);
}
return CaptureRectangle(rect);
}
finally
{
if (isTaskbarHide)
{
NativeMethods.SetTaskbarVisibility(true);
}
}
}
return null;
}
public Image CaptureActiveWindow()
{
IntPtr handle = NativeMethods.GetForegroundWindow();
return CaptureWindow(handle);
}
public Image CaptureActiveMonitor()
{
Rectangle bounds = CaptureHelpers.GetActiveScreenBounds();
return CaptureRectangle(bounds);
}
private Image CaptureRectangleNative(Rectangle rect, bool captureCursor = false)
{
return CaptureRectangleNative(NativeMethods.GetDesktopWindow(), rect, captureCursor);
}
private Image CaptureRectangleNative(IntPtr handle, Rectangle rect, bool captureCursor = false)
{
if (rect.Width == 0 || rect.Height == 0)
{
return null;
}
IntPtr hdcSrc = NativeMethods.GetWindowDC(handle);
IntPtr hdcDest = NativeMethods.CreateCompatibleDC(hdcSrc);
IntPtr hBitmap = NativeMethods.CreateCompatibleBitmap(hdcSrc, rect.Width, rect.Height);
IntPtr hOld = NativeMethods.SelectObject(hdcDest, hBitmap);
NativeMethods.BitBlt(hdcDest, 0, 0, rect.Width, rect.Height, hdcSrc, rect.X, rect.Y, CopyPixelOperation.SourceCopy | CopyPixelOperation.CaptureBlt);
if (captureCursor)
{
Point cursorOffset = CaptureHelpers.ScreenToClient(rect.Location);
try
{
using (CursorData cursorData = new CursorData())
{
cursorData.DrawCursorToHandle(hdcDest, cursorOffset);
}
}
catch (Exception e)
{
DebugHelper.WriteException(e, "Cursor capture failed.");
}
}
NativeMethods.SelectObject(hdcDest, hOld);
NativeMethods.DeleteDC(hdcDest);
NativeMethods.ReleaseDC(handle, hdcSrc);
Image img = Image.FromHbitmap(hBitmap);
NativeMethods.DeleteObject(hBitmap);
return img;
}
private Image CaptureRectangleManaged(Rectangle rect)
{
if (rect.Width == 0 || rect.Height == 0)
{
return null;
}
Image img = new Bitmap(rect.Width, rect.Height, PixelFormat.Format24bppRgb);
using (Graphics g = Graphics.FromImage(img))
{
// Managed can't use SourceCopy | CaptureBlt because of .NET bug
g.CopyFromScreen(rect.Location, Point.Empty, rect.Size, CopyPixelOperation.SourceCopy);
}
return img;
}
}
}