/// <summary>
/// Creates a new instance of DestinationInfo at the specific memory address.
/// </summary>
/// <param name="baseAddr">Memory address where the DestinationInfo object should be created.</param>
public DestinationInfo(IntPtr baseAddr)
{
lock (syncRoot)
{
guid = new Guid(MarshalEx.ReadByteArray(baseAddr, 0, 16));
description = MarshalEx.PtrToStringUni(baseAddr, 16, 256);
}
}
/// <summary>
/// Retrieves the data that is currently on the system clipboard.
/// </summary>
/// <returns>An <see cref="IDataObject"/> that represents the data currently on the clipboard, or null if there is no data on the clipboard.</returns>
public static IDataObject GetDataObject()
{
//data object to return
DataObject dobj = new DataObject();
if (!OpenClipboard(IntPtr.Zero))
{
throw new System.Runtime.InteropServices.ExternalException("Could not open Clipboard");
}
//get number of clipboard types available
int cfcount = CountClipboardFormats();
if (cfcount == 0)
{
//throw new System.Runtime.InteropServices.ExternalException("No data on the Clipboard");
return(null);
}
else
{
ClipboardFormats format = 0;
DataFormats.Format df;
for (int i = 0; i < cfcount; i++)
{
//get the next format on the clipboard
format = EnumClipboardFormats(format);
try
{
//get the dotnet data format
df = DataFormats.GetFormat((int)format);
}
catch
{
//if format is not recognised ignore it
break;
}
switch ((ClipboardFormats)df.Id)
{
case ClipboardFormats.Bitmap:
//device independant bitmap
IntPtr hDib = GetClipboardData((ClipboardFormats)df.Id);
BitmapInfoHeader bih = new BitmapInfoHeader();
//marshal thw bitmap information header
for (int iByte = 0; iByte < bih.Data.Length; iByte++)
{
bih.Data[iByte] = Marshal.ReadByte(hDib, iByte);
}
byte [] buf = MarshalEx.ReadByteArray(hDib, 0, (Math.Abs(bih.Width * bih.Height) * (bih.BitCount >> 3)) + bih.Size);
MemoryStream strm = new MemoryStream(buf.Length + 14);
BinaryWriter wr = new BinaryWriter(strm);
wr.Write((short)0x4d42); // BM
wr.Write((int)(buf.Length + 14));
wr.Write(0);
wr.Write((int)(0x36 + (BitConverter.ToInt32(buf, 0x20) * 4)));
wr.Write(buf);
wr.Flush();
strm.Seek((long)0, SeekOrigin.Begin);
dobj.SetData(df.Name, new System.Drawing.Bitmap(strm));
break;
case ClipboardFormats.UnicodeText:
//unicode text formats
dobj.SetData(df.Name, Marshal.PtrToStringUni(GetClipboardData((ClipboardFormats)df.Id)));
break;
}
}
}
if (!CloseClipboard())
{
throw new System.Runtime.InteropServices.ExternalException("Could not close Clipboard");
}
return(dobj);
}
