mcs/class/System.Drawing/System.Drawing/gdipStructs.cs

   1 //
   2 // System.Drawing.gdipStructs.cs
   3 //
   4 // Author:
   5 // Alexandre Pigolkine (pigolkine@gmx.de)
   6 // Jordi Mas (jordi@ximian.com)
   7 //
   8
   9 //
  10 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.Runtime.InteropServices;
  34 using System.Text;
  35 using System.Drawing.Imaging;
  36 using System.Drawing;
  37
  38 namespace System.Drawing
  39 {
  40         [StructLayout(LayoutKind.Sequential)]
  41         internal struct GdiplusStartupInput
  42         {
  43                 uint            GdiplusVersion;
  44                 IntPtr          DebugEventCallback;
  45                 int             SuppressBackgroundThread;
  46                 int             SuppressExternalCodecs;
  47
  48                 internal static GdiplusStartupInput MakeGdiplusStartupInput ()
  49                 {
  50                         GdiplusStartupInput result = new GdiplusStartupInput ();
  51                         result.GdiplusVersion = 1;
  52                         result.DebugEventCallback = IntPtr.Zero;
  53                         result.SuppressBackgroundThread = 0;
  54                         result.SuppressExternalCodecs = 0;
  55                         return result;
  56                 }
  57         }
  58
  59         [StructLayout(LayoutKind.Sequential)]
  60         internal struct GdiplusStartupOutput
  61         {
  62                 internal IntPtr         NotificationHook;
  63                 internal IntPtr         NotificationUnhook;
  64
  65                 internal static GdiplusStartupOutput MakeGdiplusStartupOutput ()
  66                 {
  67                         GdiplusStartupOutput result = new GdiplusStartupOutput ();
  68                         result.NotificationHook = result.NotificationUnhook = IntPtr.Zero;
  69                         return result;
  70                 }
  71         }
  72
  73
  74         [StructLayout(LayoutKind.Sequential)]
  75         internal struct GdiColorPalette
  76         {
  77                 internal int Flags;             // Palette flags
  78                 internal int Count;             // Number of color entries
  79         }
  80
  81         [StructLayout(LayoutKind.Sequential)]
  82         internal struct  GdiColorMap
  83         {
  84                 internal int from;
  85                 internal int to;
  86         }
  87
  88         [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Ansi)]
  89         internal  struct LOGFONTA
  90         {
  91                 internal int    lfHeight;
  92                 internal uint   lfWidth;
  93                 internal uint   lfEscapement;
  94                 internal uint   lfOrientation;
  95                 internal uint   lfWeight;
  96                 internal byte   lfItalic;
  97                 internal byte   lfUnderline;
  98                 internal byte   lfStrikeOut;
  99                 internal byte   lfCharSet;
 100                 internal byte   lfOutPrecision;
 101                 internal byte   lfClipPrecision;
 102                 internal byte   lfQuality;
 103                 internal byte   lfPitchAndFamily;
 104                 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)]
 105                 internal string lfFaceName;
 106         }
 107
 108         [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
 109         internal struct GdipImageCodecInfo      /*Size 76 bytes*/
 110         {
 111                 internal Guid Clsid;
 112                 internal Guid  FormatID;
 113                 internal IntPtr CodecName;
 114                 internal IntPtr DllName;
 115                 internal IntPtr FormatDescription;
 116                 internal IntPtr FilenameExtension;
 117                 internal IntPtr MimeType;
 118                 internal ImageCodecFlags Flags;
 119                 internal int Version;
 120                 internal int SigCount;
 121                 internal int SigSize;
 122                 IntPtr SigPattern;
 123                 IntPtr SigMask;
 124
 125                 internal static void MarshalTo (GdipImageCodecInfo gdipcodec, ImageCodecInfo codec)
 126                 {
 127                         codec.CodecName = Marshal.PtrToStringUni (gdipcodec.CodecName);
 128                         codec.DllName = Marshal.PtrToStringUni (gdipcodec.DllName);
 129                         codec.FormatDescription = Marshal.PtrToStringUni (gdipcodec.FormatDescription);
 130                         codec.FilenameExtension = Marshal.PtrToStringUni (gdipcodec.FilenameExtension);
 131                         codec.MimeType = Marshal.PtrToStringUni (gdipcodec.MimeType);
 132                         codec.Clsid = gdipcodec.Clsid;
 133                         codec.FormatID = gdipcodec.FormatID;
 134                         codec.Flags = gdipcodec.Flags;
 135                         codec.Version  = gdipcodec.Version;
 136                 }
 137         }
 138
 139         [StructLayout(LayoutKind.Sequential)]
 140         internal struct GdipEncoderParameter {
 141                 internal Guid guid;
 142                 internal uint numberOfValues;
 143                 internal EncoderParameterValueType type;
 144                 internal IntPtr value;
 145         }
 146
 147         [StructLayout(LayoutKind.Sequential)]
 148         internal struct GdipPropertyItem
 149         {
 150                 internal int id;
 151                 internal int len;
 152                 internal short type;
 153                 internal IntPtr value;
 154
 155                 internal static void MarshalTo (GdipPropertyItem gdipProp, PropertyItem prop)
 156                 {
 157                         prop.Id = gdipProp.id;
 158                         prop.Len = gdipProp.len;
 159                         prop.Type = gdipProp.type;
 160                         prop.Value = new byte [gdipProp.len];
 161                         Marshal.Copy (gdipProp.value, prop.Value, 0, gdipProp.len);
 162                 }
 163         }
 164 }
 165