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CPF/CPF.Windows/ClipboardImpl.cs

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初始化
2023-11-21 23:05:03 +08:00
using System;
using System.Collections.Generic;
using System.Text;
using CPF.Input;
using System.Threading;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.IO;
using CPF.Drawing;
using System.Linq;
namespace CPF.Windows
{
internal class ClipboardImpl : IClipboard
{
static int htmlId;
static int[] Format;
static ClipboardImpl()
{
//CF_BITMAP 位图的句柄（HBITMAP）。
//CF_DIB 包含BITMAPINFO结构和位图位的内存对象。
htmlId = UnmanagedMethods.RegisterClipboardFormat(Html);
Format = new int[] { (int)UnmanagedMethods.ClipboardFormat.CF_UNICODETEXT, htmlId, (int)UnmanagedMethods.ClipboardFormat.CF_DIB, (int)UnmanagedMethods.ClipboardFormat.CF_HDROP, 0 };
}
private void OpenClipboard()
{
while (!UnmanagedMethods.OpenClipboard(IntPtr.Zero))
{
Thread.Sleep(100);
//await Task.Delay(100);
}
}
//public void SetText(string text)
//{
// if (text == null)
// {
// throw new ArgumentNullException(nameof(text));
// }
// OpenClipboard();
// UnmanagedMethods.EmptyClipboard();
// try
// {
// var hGlobal = Marshal.StringToHGlobalUni(text);
// UnmanagedMethods.SetClipboardData(UnmanagedMethods.ClipboardFormat.CF_UNICODETEXT, hGlobal);
// }
// finally
// {
// UnmanagedMethods.CloseClipboard();
// }
//}
public void Clear()
{
OpenClipboard();
try
{
UnmanagedMethods.EmptyClipboard();
}
finally
{
UnmanagedMethods.CloseClipboard();
}
}
//List<IntPtr> intPtrs = new List<IntPtr>();
public void SetData(params ValueTuple<DataFormat, object>[] data)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
//foreach (var item in intPtrs)
//{
// Marshal.FreeHGlobal(item);
//}
OpenClipboard();
UnmanagedMethods.EmptyClipboard();
try
{
IntPtr hGlobal = IntPtr.Zero;
IntPtr ptr = IntPtr.Zero;
foreach (var item in data)
{
switch (item.Item1)
{
case DataFormat.Text:
hGlobal = Marshal.StringToHGlobalUni(item.Item2.ToString());
UnmanagedMethods.SetClipboardData(UnmanagedMethods.ClipboardFormat.CF_UNICODETEXT, hGlobal);
break;
case DataFormat.Html:
var html = item.Item2.ToString();
Encoding enc = Encoding.UTF8;
string begin = "Version:0.9\r\nStartHTML:{0:000000}\r\nEndHTML:{1:000000}"
+ "\r\nStartFragment:{2:000000}\r\nEndFragment:{3:000000}\r\n";
string html_begin = "<html>\r\n<head>\r\n"
+ "<meta http-equiv=\"Content-Type\""
+ " content=\"text/html; charset=" + enc.WebName + "\">\r\n"
+ "<title>HTML clipboard</title>\r\n</head>\r\n<body>\r\n"
+ "<!--StartFragment-->";
string html_end = "<!--EndFragment-->\r\n</body>\r\n</html>\r\n";
string begin_sample = String.Format(begin, 0, 0, 0, 0);
int count_begin = enc.GetByteCount(begin_sample);
int count_html_begin = enc.GetByteCount(html_begin);
int count_html = enc.GetByteCount(html);
int count_html_end = enc.GetByteCount(html_end);
string html_total = String.Format(
begin
, count_begin
, count_begin + count_html_begin + count_html + count_html_end
, count_begin + count_html_begin
, count_begin + count_html_begin + count_html
) + html_begin + html + html_end;
//var h = Marshal.StringToCoTaskMemUTF8(html_total);
var l = enc.GetByteCount(html_total);
var h = Marshal.AllocHGlobal(l);
//intPtrs.Add(h);
Marshal.Copy(enc.GetBytes(html_total), 0, h, l);
UnmanagedMethods.SetClipboardData(htmlId, h);
//Marshal.FreeHGlobal(h);
break;
case DataFormat.Image:
var img = item.Item2 as Image;
IntPtr screenDC = UnmanagedMethods.GetDC(IntPtr.Zero);
IntPtr memDc = UnmanagedMethods.CreateCompatibleDC(screenDC);
UnmanagedMethods.BITMAPINFOHEADER info = new UnmanagedMethods.BITMAPINFOHEADER();
info.biSize = (uint)Marshal.SizeOf(typeof(UnmanagedMethods.BITMAPINFOHEADER));
info.biBitCount = 24;
info.biHeight = img.Height;
info.biWidth = img.Width;
info.biPlanes = 1;
info.biSizeImage = (uint)(img.Width * img.Height * 3);
var dibHbitmap = UnmanagedMethods.CreateDIBSection(memDc, ref info, 0, out IntPtr ppvBits, IntPtr.Zero, 0);
var oldBits = UnmanagedMethods.SelectObject(memDc, dibHbitmap);
IntPtr hBitmap;
var stream = img.SaveToStream(ImageFormat.Png);
var states = UnmanagedMethods.GdipCreateBitmapFromStream(new GPStream(stream), out IntPtr bitmap);
stream.Dispose();
UnmanagedMethods.GdipCreateHBITMAPFromBitmap(bitmap, out hBitmap, UnmanagedMethods.ToWin32(Color.White));
UnmanagedMethods.GdipDisposeImage(bitmap);
UnmanagedMethods.SetClipboardData(UnmanagedMethods.ClipboardFormat.CF_BITMAP, hBitmap);
IntPtr sdc = UnmanagedMethods.CreateCompatibleDC(screenDC);
var sob = UnmanagedMethods.SelectObject(sdc, hBitmap);
UnmanagedMethods.BitBlt(memDc, 0, 0, img.Width, img.Height, sdc, 0, 0, TernaryRasterOperations.SRCCOPY);
var dib = UnmanagedMethods.GlobalAlloc(UnmanagedMethods.GMEM_MOVEABLE | UnmanagedMethods.GMEM_ZEROINIT, (int)info.biSize + (int)info.biSizeImage);
ptr = UnmanagedMethods.GlobalLock(dib);
Marshal.StructureToPtr(info, ptr, true);
var d = new byte[info.biSizeImage];
Marshal.Copy(ppvBits, d, 0, d.Length);
Marshal.Copy(d, 0, ptr + (int)info.biSize, d.Length);
UnmanagedMethods.SetClipboardData(UnmanagedMethods.ClipboardFormat.CF_DIB, dib);
UnmanagedMethods.GlobalUnlock(dib);
UnmanagedMethods.SelectObject(sdc, sob);
UnmanagedMethods.DeleteDC(sdc);
UnmanagedMethods.SelectObject(memDc, oldBits);
UnmanagedMethods.DeleteDC(memDc);
UnmanagedMethods.ReleaseDC(IntPtr.Zero, screenDC);
//UnmanagedMethods.DeleteObject(hBitmap);
break;
case DataFormat.FileNames:
var files = item.Item2 as IEnumerable<string>;
if (files != null)
{
char[] filesStr = (string.Join("\0", files) + "\0\0").ToCharArray();
_DROPFILES df = new _DROPFILES();
df.fWide = true;
#if Net4
df.pFiles = Marshal.SizeOf(typeof(_DROPFILES));
int required = (filesStr.Length * sizeof(char)) + Marshal.SizeOf(typeof(_DROPFILES));
#else
df.pFiles = Marshal.SizeOf<_DROPFILES>();
int required = (filesStr.Length * sizeof(char)) + Marshal.SizeOf<_DROPFILES>();
#endif
hGlobal = UnmanagedMethods.GlobalAlloc(UnmanagedMethods.GMEM_MOVEABLE | UnmanagedMethods.GMEM_ZEROINIT, required);
long available = UnmanagedMethods.GlobalSize(hGlobal).ToInt64();
if (required > available)
{ break; }
ptr = UnmanagedMethods.GlobalLock(hGlobal);
try
{
Marshal.StructureToPtr(df, ptr, false);
#if Net4
Marshal.Copy(filesStr, 0, ptr + Marshal.SizeOf(typeof(_DROPFILES)), filesStr.Length);
#else
Marshal.Copy(filesStr, 0, ptr + Marshal.SizeOf<_DROPFILES>(), filesStr.Length);
#endif
UnmanagedMethods.SetClipboardData(UnmanagedMethods.ClipboardFormat.CF_HDROP, hGlobal);
}
finally
{
UnmanagedMethods.GlobalUnlock(hGlobal);
}
}
break;
}
}
}
finally
{
UnmanagedMethods.CloseClipboard();
}
}
public bool Contains(DataFormat dataFormat)
{
OpenClipboard();
uint LastRetrievedFormat = 0;
List<uint> list = new List<uint>();
while (0 != (LastRetrievedFormat = UnmanagedMethods.EnumClipboardFormats(LastRetrievedFormat)))
{
list.Add(LastRetrievedFormat);
}
UnmanagedMethods.CloseClipboard();
//var f = Format[(int)dataFormat - 1];
var f = GetFormatId(dataFormat);
if (list.IndexOf((uint)f) < 0)
{
if (dataFormat == DataFormat.Text)
{
if (list.IndexOf((uint)UnmanagedMethods.ClipboardFormat.CF_TEXT) >= 0)
{
return true;
}
if (list.IndexOf((uint)UnmanagedMethods.ClipboardFormat.CF_OEMTEXT) >= 0)
{
return true;
}
}
return false;
}
return true;
}
public static DataFormat GetFormat(int format)
{
ushort f = (ushort)(format & 0xFFFF);
if (format == 2 || format == 8)
{
return DataFormat.Image;
}
for (int i = 0; i < Format.Length; i++)
{
if (Format[i] == f)
{
if (i == 0)
{
return DataFormat.Text;
}
else if (i == 1)
{
return DataFormat.Html;
}
else if (i == 2)
{
return DataFormat.Image;
}
else if (i == 3)
{
return DataFormat.FileNames;
}
}
}
if (format == (ushort)UnmanagedMethods.ClipboardFormat.CF_TEXT || format == (ushort)UnmanagedMethods.ClipboardFormat.CF_OEMTEXT)
{
return DataFormat.Text;
}
return DataFormat.Unknown;
}
public static int GetFormatId(DataFormat dataFormat)
{
//return Format[(int)dataFormat];
switch (dataFormat)
{
case DataFormat.Text:
return Format[0];
case DataFormat.Html:
return Format[1];
case DataFormat.Image:
return Format[2];
case DataFormat.FileNames:
return Format[3];
default:
return 0;
}
}
public static Image ImageFormHBitmap(IntPtr hBitmap)
{
var r = UnmanagedMethods.GdipCreateBitmapFromHBITMAP(hBitmap, IntPtr.Zero, out IntPtr b);
if (r != 0)
{
return null;
}
MemoryStream ms = new MemoryStream();
Guid png = new Guid("{b96b3caf-0728-11d3-9d7b-0000f81ef32e}");
Guid jpg = new Guid("{b96b3cae-0728-11d3-9d7b-0000f81ef32e}");
int numDecoders;
int status = UnmanagedMethods.GdipGetImageDecodersSize(out numDecoders, out int size);
if (status != 0)
{
return null;
}
IntPtr memory = Marshal.AllocHGlobal(size);
status = UnmanagedMethods.GdipGetImageDecoders(numDecoders, size, memory);
int index;
List<ImageCodecInfoPrivate> codes = new List<ImageCodecInfoPrivate>();
for (index = 0; index < numDecoders; index++)
{
IntPtr curcodec = (IntPtr)((long)memory + (int)Marshal.SizeOf(typeof(ImageCodecInfoPrivate)) * index);
ImageCodecInfoPrivate codecp = new ImageCodecInfoPrivate();
Marshal.PtrToStructure(curcodec, codecp);
codes.Add(codecp);
}
var pngCode = codes.Find(a => a.FormatID == png);
UnmanagedMethods.GdipSaveImageToStream(b, new GPStream(ms), ref pngCode.Clsid, IntPtr.Zero);
ms.Position = 0;
var img = new Bitmap(ms);
UnmanagedMethods.GdipDisposeImage(b);
//ms.Position = 0;
//File.WriteAllBytes(Path.Combine(CPF.Platform.Application.StartupPath, "test.png"), ms.ToArray());
ms.Dispose();
return img;
}
public object GetData(DataFormat dataFormat)
{
//if (dataFormat != DataFormat.Image)
{
OpenClipboard();
try
{
int formatId = (int)UnmanagedMethods.ClipboardFormat.CF_UNICODETEXT;
switch (dataFormat)
{
case DataFormat.Text:
uint LastRetrievedFormat = 0;
while (0 != (LastRetrievedFormat = UnmanagedMethods.EnumClipboardFormats(LastRetrievedFormat)))
{
if (LastRetrievedFormat == (uint)UnmanagedMethods.ClipboardFormat.CF_OEMTEXT)
{
formatId = (int)UnmanagedMethods.ClipboardFormat.CF_OEMTEXT;
break;
}
else if (LastRetrievedFormat == (uint)UnmanagedMethods.ClipboardFormat.CF_TEXT)
{
formatId = (int)UnmanagedMethods.ClipboardFormat.CF_TEXT;
break;
}
}
break;
case DataFormat.Html:
formatId = htmlId;
break;
case DataFormat.Image:
formatId = (int)UnmanagedMethods.ClipboardFormat.CF_DIB;
break;
case DataFormat.FileNames:
formatId = (int)UnmanagedMethods.ClipboardFormat.CF_HDROP;
break;
}
IntPtr hText = UnmanagedMethods.GetClipboardData(formatId);
if (hText == IntPtr.Zero)
{
return null;
}
string stringData = null;
int size;
IntPtr ptr = UnmanagedMethods.GlobalLock(hText);
try
{
switch (dataFormat)
{
case DataFormat.Text:
if (formatId == (int)UnmanagedMethods.ClipboardFormat.CF_TEXT)
{
Picture组件增加LoadingImage属性
2024-01-15 22:53:10 +08:00
try
{
var rv = Marshal.PtrToStringAnsi(hText);//在Unity 里会报错
return rv;
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e);
Console.WriteLine(e);
var dwBufSize = (int)UnmanagedMethods.GlobalSize(hText);
//var ss = new String((sbyte*)hText, 0, dwBufSize);
byte[] cc = new byte[dwBufSize];
Marshal.Copy(hText, cc, 0, (int)dwBufSize);
string ss = Encoding.GetEncoding("GBK").GetString(cc).TrimEnd('\0');
return ss;
}
初始化
2023-11-21 23:05:03 +08:00
}
else
{
var rv = Marshal.PtrToStringUni(hText);
return rv;
}
case DataFormat.Html:
size = (int)UnmanagedMethods.GlobalSize(hText);
//if (unicode)
//{
//stringData = new string((char*)ptr);
//}
//else
//{
// stringData = new string((sbyte*)ptr);
//}
byte[] bytes = new byte[size];
Marshal.Copy(ptr, bytes, 0, size);
stringData = Encoding.UTF8.GetString(bytes);
var start = stringData.IndexOf("<!--StartFragment");
var end = stringData.IndexOf("<!--EndFragment");
if (start == -1 || end == -1)
{
var s = stringData.IndexOf("StartFragment:");
var e = stringData.IndexOf("EndFragment:");
if (s == -1 || end == -1)
{
}
else
{
start = int.Parse(stringData.Substring(s + 14, 10));
end = int.Parse(stringData.Substring(e + 14, 10));
var by = Encoding.UTF8.GetBytes(stringData);
stringData = Encoding.UTF8.GetString(by, start, end - start);
stringData = stringData.Substring(start, end - start + 1);
}
}
else
{
stringData = stringData.Substring(start + 17, end - start - 17);
stringData = stringData.TrimStart('-', ' ', '>');
}
return stringData;
case DataFormat.Image:
if (formatId == (int)UnmanagedMethods.ClipboardFormat.CF_BITMAP)
{
var img = ImageFormHBitmap(hText);
return img;
}
else
unsafe
{
#if Net4
var bmp = (UnmanagedMethods.BITMAPINFOHEADER)Marshal.PtrToStructure(ptr, typeof(UnmanagedMethods.BITMAPINFOHEADER));
#else
Picture组件增加LoadingImage属性
2024-01-15 22:53:10 +08:00
var bmp = Marshal.PtrToStructure<UnmanagedMethods.BITMAPINFOHEADER>(ptr);
初始化
2023-11-21 23:05:03 +08:00
#endif
IntPtr screenDC = UnmanagedMethods.GetDC(IntPtr.Zero);
IntPtr memDc = UnmanagedMethods.CreateCompatibleDC(screenDC);
UnmanagedMethods.BITMAPINFOHEADER info = new UnmanagedMethods.BITMAPINFOHEADER();
info.biSize = (uint)Marshal.SizeOf(typeof(UnmanagedMethods.BITMAPINFOHEADER));
info.biBitCount = 32;
info.biHeight = bmp.biHeight;
info.biWidth = bmp.biWidth;
info.biPlanes = 1;
var hBitmap = UnmanagedMethods.CreateDIBSection(memDc, ref info, 0, out IntPtr ppvBits, IntPtr.Zero, 0);
var oldBits = UnmanagedMethods.SelectObject(memDc, hBitmap);//将位图载入上下文
//_ = UnmanagedMethods.GlobalLock(hText);
Picture组件增加LoadingImage属性
2024-01-15 22:53:10 +08:00
_ = UnmanagedMethods.StretchDIBits(memDc, 0, 0, bmp.biWidth, Math.Abs(bmp.biHeight), 0, 0, bmp.biWidth, Math.Abs(bmp.biHeight), (ptr + sizeof(UnmanagedMethods.BITMAPINFOHEADER)), ref info, 0, (uint)TernaryRasterOperations.SRCCOPY);
初始化
2023-11-21 23:05:03 +08:00
//sizeof(UnmanagedMethods.BITMAPFILEHEADER) +
//var c = sizeof(UnmanagedMethods.BITMAPINFOHEADER);
var img = ImageFormHBitmap(hBitmap);
//var img = new Bitmap(bmp.biWidth, bmp.biHeight, bmp.biWidth * 4, PixelFormat.PRgba, ppvBits).Clone();
UnmanagedMethods.SelectObject(memDc, oldBits);
UnmanagedMethods.ReleaseDC(IntPtr.Zero, screenDC);
UnmanagedMethods.DeleteDC(memDc);
UnmanagedMethods.DeleteObject(hBitmap);
return img;
}
case DataFormat.FileNames:
string[] files = null;
StringBuilder sb = new StringBuilder(260);
int count = UnmanagedMethods.DragQueryFile(hText, unchecked((int)0xFFFFFFFF), null, 0);
if (count > 0)
{
files = new string[count];
for (int i = 0; i < count; i++)
{
int charlen = UnmanagedMethods.DragQueryFileLongPath(hText, i, sb);
if (0 == charlen)
continue;
string s = sb.ToString(0, charlen);
// SECREVIEW : do we really need to do this?
//
//string fullPath = Path.GetFullPath(s);
//Debug.WriteLineIf(IntSecurity.SecurityDemand.TraceVerbose, "FileIO(" + fullPath + ") Demanded");
//new FileIOPermission(FileIOPermissionAccess.PathDiscovery, fullPath).Demand();
files[i] = s;
}
}
return files;
default:
return null;
}
}
finally
{
UnmanagedMethods.GlobalUnlock(hText);
}
}
finally
{
UnmanagedMethods.CloseClipboard();
}
}
//else
//{
// IDataObject dataObject = null;
// int hr, retry = 10;
// do
// {
// hr = UnmanagedMethods.OleGetClipboard(ref dataObject);
// if (hr != 0)
// {
// if (retry == 0)
// {
// //ThrowIfFailed(hr);
// throw new Exception("读取剪贴板失败");
// }
// retry--;
// Thread.Sleep(100 /*ms*/);
// }
// }
// while (hr != 0);
// FORMATETC formatetc = new FORMATETC();
// STGMEDIUM medium = new STGMEDIUM();
// var tymed = TYMED.TYMED_GDI;
// formatetc.cfFormat = (short)UnmanagedMethods.ClipboardFormat.CF_BITMAP;
// formatetc.dwAspect = DVASPECT.DVASPECT_CONTENT;
// formatetc.lindex = -1;
// formatetc.tymed = tymed;
// medium.tymed = tymed;
// Object data = null;
// if (0 == dataObject.QueryGetData(ref formatetc))
// {
// try
// {
// //IntSecurity.UnmanagedCode.Assert();
// try
// {
// dataObject.GetData(ref formatetc, out medium);
// }
// finally
// {
// //CodeAccessPermission.RevertAssert();
// }
// if (medium.unionmember != IntPtr.Zero)
// {
// var r = UnmanagedMethods.GdipCreateBitmapFromHBITMAP(medium.unionmember, IntPtr.Zero, out IntPtr b);
// if (r != 0)
// {
// return null;
// }
// //UnmanagedMethods.BITMAP BITMAP = new UnmanagedMethods.BITMAP();
// //UnmanagedMethods.GetObject(medium.unionmember, Marshal.SizeOf(typeof(UnmanagedMethods.BITMAP)), BITMAP);
// MemoryStream ms = new MemoryStream();
// Guid png = new Guid("{b96b3caf-0728-11d3-9d7b-0000f81ef32e}");
// int numDecoders;
// int size;
// int status = UnmanagedMethods.GdipGetImageDecodersSize(out numDecoders, out size);
// if (status != 0)
// {
// return null;
// }
// IntPtr memory = Marshal.AllocHGlobal(size);
// status = UnmanagedMethods.GdipGetImageDecoders(numDecoders, size, memory);
// int index;
// List<ImageCodecInfoPrivate> codes = new List<ImageCodecInfoPrivate>();
// for (index = 0; index < numDecoders; index++)
// {
// IntPtr curcodec = (IntPtr)((long)memory + (int)Marshal.SizeOf(typeof(ImageCodecInfoPrivate)) * index);
// ImageCodecInfoPrivate codecp = new ImageCodecInfoPrivate();
// Marshal.PtrToStructure(curcodec, codecp);
// codes.Add(codecp);
// }
// var pngCode = codes.Find(a => a.FormatID == png);
// UnmanagedMethods.GdipSaveImageToStream(b, new ComStreamFromDataStream(ms), ref pngCode.Clsid, IntPtr.Zero);
// ms.Position = 0;
// var img = new CPF.Bitmap(ms);
// UnmanagedMethods.GdipDisposeImage(b);
// ms.Dispose();
// return img;
// }
// }
// catch
// {
// }
// }
// return data;
//}
}
/// <para>Specifies the standard ANSI text format. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string Text = "Text";
/// <para>Specifies the standard Windows Unicode text format. This
/// <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string UnicodeText = "UnicodeText";
/// <para>Specifies the Windows Device Independent Bitmap (DIB)
/// format. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string Dib = "DeviceIndependentBitmap";
/// <devdoc>
/// <para>Specifies a Windows bitmap format. This <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string Bitmap = "Bitmap";
/// <devdoc>
/// <para>Specifies the Windows enhanced metafile format. This
/// <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string EnhancedMetafile = "EnhancedMetafile";
/// <devdoc>
/// <para>Specifies the Windows metafile format, which Win Forms
/// does not directly use. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly")] // Would be a breaking change to rename this
public static readonly string MetafilePict = "MetaFilePict";
/// <devdoc>
/// <para>Specifies the Windows symbolic link format, which Win
/// Forms does not directly use. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string SymbolicLink = "SymbolicLink";
/// <devdoc>
/// <para>Specifies the Windows data interchange format, which Win
/// Forms does not directly use. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string Dif = "DataInterchangeFormat";
/// <devdoc>
/// <para>Specifies the Tagged Image File Format (TIFF), which Win
/// Forms does not directly use. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string Tiff = "TaggedImageFileFormat";
/// <devdoc>
/// <para>Specifies the standard Windows original equipment
/// manufacturer (OEM) text format. This <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string OemText = "OEMText";
/// <devdoc>
/// <para>Specifies the Windows palette format. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string Palette = "Palette";
/// <devdoc>
/// <para>Specifies the Windows pen data format, which consists of
/// pen strokes for handwriting software; Win Forms does not use this format. This
/// <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string PenData = "PenData";
/// <devdoc>
/// <para>Specifies the Resource Interchange File Format (RIFF)
/// audio format, which Win Forms does not directly use. This <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string Riff = "RiffAudio";
/// <devdoc>
/// <para>Specifies the wave audio format, which Win Forms does not
/// directly use. This <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string WaveAudio = "WaveAudio";
/// <devdoc>
/// <para>Specifies the Windows file drop format, which Win Forms
/// does not directly use. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string FileDrop = "FileDrop";
/// <devdoc>
/// <para>Specifies the Windows culture format, which Win Forms does
/// not directly use. This <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string Locale = "Locale";
/// <devdoc>
/// <para>Specifies text consisting of HTML data. This
/// <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string Html = "HTML Format";
/// <devdoc>
/// <para>Specifies text consisting of Rich Text Format (RTF) data. This
/// <see langword='static '/> field is read-only.</para>
/// </devdoc>
public static readonly string Rtf = "Rich Text Format";
/// <devdoc>
/// <para>Specifies a comma-separated value (CSV) format, which is a
/// common interchange format used by spreadsheets. This format is not used directly
/// by Win Forms. This <see langword='static '/>
/// field is read-only.</para>
/// </devdoc>
public static readonly string CommaSeparatedValue = "Csv";
}
//[ComImport()]
//[Guid("0000010E-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//public interface IDataObject
//{
// /// <devdoc>
// /// Called by a data consumer to obtain data from a source data object.
// /// The GetData method renders the data described in the specified FORMATETC
// /// structure and transfers it through the specified STGMEDIUM structure.
// /// The caller then assumes responsibility for releasing the STGMEDIUM structure.
// /// </devdoc>
// void GetData([In] ref FORMATETC format, out STGMEDIUM medium);
// /// <devdoc>
// /// Called by a data consumer to obtain data from a source data object.
// /// This method differs from the GetData method in that the caller must
// /// allocate and free the specified storage medium.
// /// </devdoc>
// void GetDataHere([In] ref FORMATETC format, ref STGMEDIUM medium);
// /// <devdoc>
// /// Determines whether the data object is capable of rendering the data
// /// described in the FORMATETC structure. Objects attempting a paste or
// /// drop operation can call this method before calling IDataObject::GetData
// /// to get an indication of whether the operation may be successful.
// /// </devdoc>
// [PreserveSig]
// int QueryGetData([In] ref FORMATETC format);
// /// <devdoc>
// /// Provides a standard FORMATETC structure that is logically equivalent to one that is more
// /// complex. You use this method to determine whether two different
// /// FORMATETC structures would return the same data, removing the need
// /// for duplicate rendering.
// /// </devdoc>
// [PreserveSig]
// int GetCanonicalFormatEtc([In] ref FORMATETC formatIn, out FORMATETC formatOut);
// /// <devdoc>
// /// Called by an object containing a data source to transfer data to
// /// the object that implements this method.
// /// </devdoc>
// void SetData([In] ref FORMATETC formatIn, [In] ref STGMEDIUM medium, [MarshalAs(UnmanagedType.Bool)] bool release);
// /// <devdoc>
// /// Creates an object for enumerating the FORMATETC structures for a
// /// data object. These structures are used in calls to IDataObject::GetData
// /// or IDataObject::SetData.
// /// </devdoc>
// IEnumFORMATETC EnumFormatEtc(DATADIR direction);
// /// <devdoc>
// /// Called by an object supporting an advise sink to create a connection between
// /// a data object and the advise sink. This enables the advise sink to be
// /// notified of changes in the data of the object.
// /// </devdoc>
// [PreserveSig]
// int DAdvise([In] ref FORMATETC pFormatetc, ADVF advf, IAdviseSink adviseSink, out int connection);
// /// <devdoc>
// /// Destroys a notification connection that had been previously set up.
// /// </devdoc>
// void DUnadvise(int connection);
// /// <devdoc>
// /// Creates an object that can be used to enumerate the current advisory connections.
// /// </devdoc>
// [PreserveSig]
// int EnumDAdvise(out IEnumSTATDATA enumAdvise);
//}
//public struct FORMATETC
//{
// [MarshalAs(UnmanagedType.U2)]
// public short cfFormat;
// public IntPtr ptd;
// [MarshalAs(UnmanagedType.U4)]
// public DVASPECT dwAspect;
// public int lindex;
// [MarshalAs(UnmanagedType.U4)]
// public TYMED tymed;
//}
//public enum DATADIR
//{
// DATADIR_GET = 1,
// DATADIR_SET = 2
//}
///// <devdoc>
///// The IEnumFORMATETC interface is used to enumerate an array of FORMATETC
///// structures. IEnumFORMATETC has the same methods as all enumerator interfaces:
///// Next, Skip, Reset, and Clone.
///// </devdoc>
//[ComImport()]
//[Guid("00000103-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//public interface IEnumFORMATETC
//{
// /// <devdoc>
// /// Retrieves the next celt items in the enumeration sequence. If there are
// /// fewer than the requested number of elements left in the sequence, it
// /// retrieves the remaining elements. The number of elements actually
// /// retrieved is returned through pceltFetched (unless the caller passed
// /// in NULL for that parameter).
// /// </devdoc>
// [PreserveSig]
// int Next(int celt, [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] FORMATETC[] rgelt, [Out, MarshalAs(UnmanagedType.LPArray)] int[] pceltFetched);
// /// <devdoc>
// /// Skips over the next specified number of elements in the enumeration sequence.
// /// </devdoc>
// [PreserveSig]
// int Skip(int celt);
// /// <devdoc>
// /// Resets the enumeration sequence to the beginning.
// /// </devdoc>
// [PreserveSig]
// int Reset();
// /// <devdoc>
// /// Creates another enumerator that contains the same enumeration state as
// /// the current one. Using this function, a client can record a particular
// /// point in the enumeration sequence and then return to that point at a
// /// later time. The new enumerator supports the same interface as the original one.
// /// </devdoc>
// void Clone(out IEnumFORMATETC newEnum);
//}
//[Flags]
//public enum DVASPECT
//{
// DVASPECT_CONTENT = 1,
// DVASPECT_THUMBNAIL = 2,
// DVASPECT_ICON = 4,
// DVASPECT_DOCPRINT = 8
//}
//[Flags]
//public enum TYMED
//{
// TYMED_HGLOBAL = 1,
// TYMED_FILE = 2,
// TYMED_ISTREAM = 4,
// TYMED_ISTORAGE = 8,
// TYMED_GDI = 16,
// TYMED_MFPICT = 32,
// TYMED_ENHMF = 64,
// TYMED_NULL = 0
//}
//[Flags]
//[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1712:DoNotPrefixEnumValuesWithTypeName")]
//public enum ADVF
//{
// ADVF_NODATA = 1,
// ADVF_PRIMEFIRST = 2,
// ADVF_ONLYONCE = 4,
// ADVF_DATAONSTOP = 64,
// ADVFCACHE_NOHANDLER = 8,
// ADVFCACHE_FORCEBUILTIN = 16,
// ADVFCACHE_ONSAVE = 32
//}
///// <devdoc>
///// The IAdviseSink interface enables containers and other objects to
///// receive notifications of data changes, view changes, and compound-document
///// changes occurring in objects of interest. Container applications, for
///// example, require such notifications to keep cached presentations of their
///// linked and embedded objects up-to-date. Calls to IAdviseSink methods are
///// asynchronous, so the call is sent and then the next instruction is executed
///// without waiting for the call's return.
///// </devdoc>
//[ComImport()]
//[Guid("0000010F-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//public interface IAdviseSink
//{
// /// <devdoc>
// /// Called by the server to notify a data object's currently registered
// /// advise sinks that data in the object has changed.
// /// </devdoc>
// [PreserveSig]
// void OnDataChange([In] ref FORMATETC format, [In] ref STGMEDIUM stgmedium);
// /// <devdoc>
// /// Notifies an object's registered advise sinks that its view has changed.
// /// </devdoc>
// [PreserveSig]
// void OnViewChange(int aspect, int index);
// /// <devdoc>
// /// Called by the server to notify all registered advisory sinks that
// /// the object has been renamed.
// /// </devdoc>
// [PreserveSig]
// void OnRename(IMoniker moniker);
// /// <devdoc>
// /// Called by the server to notify all registered advisory sinks that
// /// the object has been saved.
// /// </devdoc>
// [PreserveSig]
// void OnSave();
// /// <devdoc>
// /// Called by the server to notify all registered advisory sinks that the
// /// object has changed from the running to the loaded state.
// /// </devdoc>
// [PreserveSig]
// void OnClose();
//}
//public struct STGMEDIUM
//{
// public TYMED tymed;
// public IntPtr unionmember;
// [MarshalAs(UnmanagedType.IUnknown)]
// public object pUnkForRelease;
//}
[StructLayout(LayoutKind.Sequential)]
public struct FILETIME
{
public int dwLowDateTime;
public int dwHighDateTime;
}
//[Guid("0000000f-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//[ComImport]
//public interface IMoniker
//{
// // IPersist portion
// void GetClassID(out Guid pClassID);
// // IPersistStream portion
// [PreserveSig]
// int IsDirty();
// void Load(IStream pStm);
// void Save(IStream pStm, [MarshalAs(UnmanagedType.Bool)] bool fClearDirty);
// void GetSizeMax(out Int64 pcbSize);
// // IMoniker portion
// void BindToObject(IBindCtx pbc, IMoniker pmkToLeft, [In()] ref Guid riidResult, [MarshalAs(UnmanagedType.Interface)] out Object ppvResult);
// void BindToStorage(IBindCtx pbc, IMoniker pmkToLeft, [In()] ref Guid riid, [MarshalAs(UnmanagedType.Interface)] out Object ppvObj);
// void Reduce(IBindCtx pbc, int dwReduceHowFar, ref IMoniker ppmkToLeft, out IMoniker ppmkReduced);
// void ComposeWith(IMoniker pmkRight, [MarshalAs(UnmanagedType.Bool)] bool fOnlyIfNotGeneric, out IMoniker ppmkComposite);
// void Enum([MarshalAs(UnmanagedType.Bool)] bool fForward, out IEnumMoniker ppenumMoniker);
// [PreserveSig]
// int IsEqual(IMoniker pmkOtherMoniker);
// void Hash(out int pdwHash);
// [PreserveSig]
// int IsRunning(IBindCtx pbc, IMoniker pmkToLeft, IMoniker pmkNewlyRunning);
// void GetTimeOfLastChange(IBindCtx pbc, IMoniker pmkToLeft, out FILETIME pFileTime);
// void Inverse(out IMoniker ppmk);
// void CommonPrefixWith(IMoniker pmkOther, out IMoniker ppmkPrefix);
// void RelativePathTo(IMoniker pmkOther, out IMoniker ppmkRelPath);
// void GetDisplayName(IBindCtx pbc, IMoniker pmkToLeft, [MarshalAs(UnmanagedType.LPWStr)] out String ppszDisplayName);
// void ParseDisplayName(IBindCtx pbc, IMoniker pmkToLeft, [MarshalAs(UnmanagedType.LPWStr)] String pszDisplayName, out int pchEaten, out IMoniker ppmkOut);
// [PreserveSig]
// int IsSystemMoniker(out int pdwMksys);
//}
//[StructLayout(LayoutKind.Sequential)]
//public struct BIND_OPTS
//{
// public int cbStruct;
// public int grfFlags;
// public int grfMode;
// public int dwTickCountDeadline;
//}
//[Guid("0000000e-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//[ComImport]
//public interface IBindCtx
//{
// void RegisterObjectBound([MarshalAs(UnmanagedType.Interface)] Object punk);
// void RevokeObjectBound([MarshalAs(UnmanagedType.Interface)] Object punk);
// void ReleaseBoundObjects();
// void SetBindOptions([In()] ref BIND_OPTS pbindopts);
// void GetBindOptions(ref BIND_OPTS pbindopts);
// void GetRunningObjectTable(out IRunningObjectTable pprot);
// void RegisterObjectParam([MarshalAs(UnmanagedType.LPWStr)] String pszKey, [MarshalAs(UnmanagedType.Interface)] Object punk);
// void GetObjectParam([MarshalAs(UnmanagedType.LPWStr)] String pszKey, [MarshalAs(UnmanagedType.Interface)] out Object ppunk);
// void EnumObjectParam(out IEnumString ppenum);
// [PreserveSig]
// int RevokeObjectParam([MarshalAs(UnmanagedType.LPWStr)] String pszKey);
//}
//[Guid("00000101-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//[ComImport]
//public interface IEnumString
//{
// [PreserveSig]
// int Next(int celt, [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.LPWStr, SizeParamIndex = 0), Out] String[] rgelt, IntPtr pceltFetched);
// [PreserveSig]
// int Skip(int celt);
// void Reset();
// void Clone(out IEnumString ppenum);
//}
//[Guid("00000010-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//[ComImport]
//public interface IRunningObjectTable
//{
// int Register(int grfFlags, [MarshalAs(UnmanagedType.Interface)] Object punkObject, IMoniker pmkObjectName);
// void Revoke(int dwRegister);
// [PreserveSig]
// int IsRunning(IMoniker pmkObjectName);
// [PreserveSig]
// int GetObject(IMoniker pmkObjectName, [MarshalAs(UnmanagedType.Interface)] out Object ppunkObject);
// void NoteChangeTime(int dwRegister, ref FILETIME pfiletime);
// [PreserveSig]
// int GetTimeOfLastChange(IMoniker pmkObjectName, out FILETIME pfiletime);
// void EnumRunning(out IEnumMoniker ppenumMoniker);
//}
//[Guid("00000102-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//[ComImport]
//public interface IEnumMoniker
//{
// [PreserveSig]
// int Next(int celt, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0), Out] IMoniker[] rgelt, IntPtr pceltFetched);
// [PreserveSig]
// int Skip(int celt);
// void Reset();
// void Clone(out IEnumMoniker ppenum);
//}
//[ComImport()]
//[Guid("00000103-0000-0000-C000-000000000046")]
//[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
//public interface IEnumSTATDATA
//{
// /// <devdoc>
// /// Retrieves the next celt items in the enumeration sequence. If there are
// /// fewer than the requested number of elements left in the sequence, it
// /// retrieves the remaining elements. The number of elements actually
// /// retrieved is returned through pceltFetched (unless the caller passed
// /// in NULL for that parameter).
// /// </devdoc>
// [PreserveSig]
// int Next(int celt, [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] STATDATA[] rgelt, [Out, MarshalAs(UnmanagedType.LPArray, SizeConst = 1)] int[] pceltFetched);
// /// <devdoc>
// /// Skips over the next specified number of elements in the enumeration sequence.
// /// </devdoc>
// [PreserveSig]
// int Skip(int celt);
// /// <devdoc>
// /// Resets the enumeration sequence to the beginning.
// /// </devdoc>
// [PreserveSig]
// int Reset();
// /// <devdoc>
// /// Creates another enumerator that contains the same enumeration state as
// /// the current one. Using this function, a client can record a particular
// /// point in the enumeration sequence and then return to that point at a
// /// later time. The new enumerator supports the same interface as the original one.
// /// </devdoc>
// void Clone(out IEnumSTATDATA newEnum);
//}
//public struct STATDATA
//{
// public FORMATETC formatetc;
// public ADVF advf;
// public IAdviseSink advSink;
// public int connection;
//}
//internal class ComStreamFromDataStream : IStream
//{
// protected Stream dataStream;
// // to support seeking ahead of the stream length...
// long virtualPosition = -1;
// internal ComStreamFromDataStream(Stream dataStream)
// {
// if (dataStream == null) throw new ArgumentNullException("dataStream");
// this.dataStream = dataStream;
// }
// private void ActualizeVirtualPosition()
// {
// if (virtualPosition == -1) return;
// if (virtualPosition > dataStream.Length)
// dataStream.SetLength(virtualPosition);
// dataStream.Position = virtualPosition;
// virtualPosition = -1;
// }
// public virtual IStream Clone()
// {
// NotImplemented();
// return null;
// }
// public virtual void Commit(int grfCommitFlags)
// {
// dataStream.Flush();
// // Extend the length of the file if needed.
// ActualizeVirtualPosition();
// }
// public virtual long CopyTo(IStream pstm, long cb, long[] pcbRead)
// {
// int bufsize = 4096; // one page
// IntPtr buffer = Marshal.AllocHGlobal(bufsize);
// if (buffer == IntPtr.Zero) throw new OutOfMemoryException();
// long written = 0;
// try
// {
// while (written < cb)
// {
// int toRead = bufsize;
// if (written + toRead > cb) toRead = (int)(cb - written);
// int read = Read(buffer, toRead);
// if (read == 0) break;
// if (pstm.Write(buffer, read) != read)
// {
// throw EFail("Wrote an incorrect number of bytes");
// }
// written += read;
// }
// }
// finally
// {
// Marshal.FreeHGlobal(buffer);
// }
// if (pcbRead != null && pcbRead.Length > 0)
// {
// pcbRead[0] = written;
// }
// return written;
// }
// public virtual Stream GetDataStream()
// {
// return dataStream;
// }
// public virtual void LockRegion(long libOffset, long cb, int dwLockType)
// {
// }
// protected static ExternalException EFail(string msg)
// {
// throw new ExternalException(msg);
// }
// protected static void NotImplemented()
// {
// throw new ExternalException("未实现");
// }
// public virtual int Read(IntPtr buf, /* cpr: int offset,*/ int length)
// {
// // System.Text.Out.WriteLine("IStream::Read(" + length + ")");
// byte[] buffer = new byte[length];
// int count = Read(buffer, length);
// Marshal.Copy(buffer, 0, buf, length);
// return count;
// }
// public virtual int Read(byte[] buffer, /* cpr: int offset,*/ int length)
// {
// ActualizeVirtualPosition();
// return dataStream.Read(buffer, 0, length);
// }
// public virtual void Revert()
// {
// NotImplemented();
// }
// public virtual long Seek(long offset, int origin)
// {
// // Console.WriteLine("IStream::Seek("+ offset + ", " + origin + ")");
// long pos = virtualPosition;
// if (virtualPosition == -1)
// {
// pos = dataStream.Position;
// }
// long len = dataStream.Length;
// switch (origin)
// {
// case GPStream.STREAM_SEEK_SET:
// if (offset <= len)
// {
// dataStream.Position = offset;
// virtualPosition = -1;
// }
// else
// {
// virtualPosition = offset;
// }
// break;
// case GPStream.STREAM_SEEK_END:
// if (offset <= 0)
// {
// dataStream.Position = len + offset;
// virtualPosition = -1;
// }
// else
// {
// virtualPosition = len + offset;
// }
// break;
// case GPStream.STREAM_SEEK_CUR:
// if (offset + pos <= len)
// {
// dataStream.Position = pos + offset;
// virtualPosition = -1;
// }
// else
// {
// virtualPosition = offset + pos;
// }
// break;
// }
// if (virtualPosition != -1)
// {
// return virtualPosition;
// }
// else
// {
// return dataStream.Position;
// }
// }
// public virtual void SetSize(long value)
// {
// dataStream.SetLength(value);
// }
// public virtual void Stat(IntPtr pstatstg, int grfStatFlag)
// {
// // GpStream has a partial implementation, but it's so partial rather
// // restrict it to use with GDI+
// NotImplemented();
// }
// public virtual void UnlockRegion(long libOffset, long cb, int dwLockType)
// {
// }
// public virtual int Write(IntPtr buf, /* cpr: int offset,*/ int length)
// {
// byte[] buffer = new byte[length];
// Marshal.Copy(buf, buffer, 0, length);
// return Write(buffer, length);
// }
// public virtual int Write(byte[] buffer, /* cpr: int offset,*/ int length)
// {
// ActualizeVirtualPosition();
// dataStream.Write(buffer, 0, length);
// return length;
// }
//}
[StructLayout(LayoutKind.Sequential, Pack = 8)]
internal class ImageCodecInfoPrivate
{
[MarshalAs(UnmanagedType.Struct)]
public Guid Clsid;
[MarshalAs(UnmanagedType.Struct)]
public Guid FormatID;
public IntPtr CodecName = IntPtr.Zero;
public IntPtr DllName = IntPtr.Zero;
public IntPtr FormatDescription = IntPtr.Zero;
public IntPtr FilenameExtension = IntPtr.Zero;
public IntPtr MimeType = IntPtr.Zero;
public int Flags;
public int Version;
public int SigCount;
public int SigSize;
public IntPtr SigPattern = IntPtr.Zero;
public IntPtr SigMask = IntPtr.Zero;
}
}
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