mirror of
https://github.com/greenshot/greenshot
synced 2025-07-16 10:03:44 -07:00
63f71138cf
git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1654 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
84 lines
3.4 KiB
C#
84 lines
3.4 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2012 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Drawing;
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using System.Runtime.InteropServices;
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namespace GreenshotPlugin.UnmanagedHelpers {
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/// <summary>
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/// GDI32 Helpers
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/// </summary>
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public class GDI32 {
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[DllImport("gdi32", SetLastError=true)]
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public static extern bool BitBlt(IntPtr hObject,int nXDest,int nYDest, int nWidth,int nHeight,IntPtr hObjectSource, int nXSrc,int nYSrc, CopyPixelOperation dwRop);
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[DllImport("gdi32", SetLastError=true)]
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public static extern IntPtr CreateCompatibleDC(IntPtr hDC);
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[DllImport("gdi32", SetLastError=true)]
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public static extern bool DeleteDC(IntPtr hDC);
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[DllImport("gdi32", SetLastError=true)]
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public static extern bool DeleteObject(IntPtr hObject);
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[DllImport("gdi32", SetLastError=true)]
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public static extern IntPtr SelectObject(IntPtr hDC,IntPtr hObject);
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[DllImport("gdi32", SetLastError=true)]
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public static extern IntPtr CreateDIBSection(IntPtr hdc, ref BitmapInfoHeader bmi, uint Usage, out IntPtr bits, IntPtr hSection, uint dwOffset);
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[DllImport("gdi32", SetLastError=true)]
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public static extern IntPtr CreateRectRgn(int nLeftRect, int nTopRect, int nRightRect, int nBottomRect);
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[DllImport("gdi32", SetLastError=true)]
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public static extern int GetClipBox(IntPtr hdc, out RECT lprc);
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[DllImport("gdi32", SetLastError = true)]
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public static extern uint GetPixel(IntPtr hdc, int nXPos, int nYPos);
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}
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[StructLayout(LayoutKind.Sequential)]
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public struct BitmapInfoHeader {
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public uint biSize;
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public int biWidth;
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public int biHeight;
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public short biPlanes;
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public short biBitCount;
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public uint biCompression;
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public uint biSizeImage;
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public int biXPelsPerMeter;
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public int biYPelsPerMeter;
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public uint biClrUsed;
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public int biClrImportant;
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private const int BI_RGB = 0; //Das Bitmap ist nicht komprimiert
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private const int BI_RLE8 = 1; //Das Bitmap ist komprimiert (Für 8-Bit Bitmaps)
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private const int BI_RLE4 = 2; //Das Bitmap ist komprimiert (Für 4-Bit Bitmaps)
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private const int BI_BITFIELDS = 3; //Das Bitmap ist nicht komprimiert. Die Farbtabelle enthält
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public const int DIB_RGB_COLORS = 0;
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public BitmapInfoHeader(int width, int height, short bpp) {
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biSize = (uint)Marshal.SizeOf(typeof(BitmapInfoHeader)); // BITMAPINFOHEADER is 40 bytes
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biPlanes = 1; // Should allways be 1
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biCompression = BI_RGB;
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biWidth=width;
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biHeight=height;
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biBitCount=bpp;
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biSizeImage = 0;
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biXPelsPerMeter = 0;
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biYPelsPerMeter = 0;
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biClrUsed = 0;
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biClrImportant = 0;
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}
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}
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}
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