public byte[] GetResDirectoryData()
{
// recreate the Icon Directory resource data
var ms = new MemoryStream();
var wtr = new BinaryWriter(ms);
var dir = new IconDirectory
{
wReserved = 0,
wType = (ushort)(Type == IconType.Icon ? 1u : 2u),
wCount = (ushort)_images.Count
};
dir.Write(wtr);
foreach (var directoryMember in _images)
{
var image = (IconImage)directoryMember;
var entry = new ResIconDirectoryEntry
{
bWidth = (byte)image.Size.Width,
bHeight = (byte)image.Size.Height,
bColorCount = image.ColorCount,
bReserved = 0,
wPlanes = image.Planes,
wBitCount = image.BitCount,
dwBytesInRes = (uint)image.ImageData.Length,
wId = (ushort)image.ResourceData.Lang.Name.Identifier.NativeId.ToInt32()
};
// gotta love the load of dereferencing going on here
entry.Write(wtr);
}
return(ms.ToArray());
}
public Byte[] GetResDirectoryData()
{
// recreate the Icon Directory resource data
MemoryStream ms = new MemoryStream();
BinaryWriter wtr = new BinaryWriter(ms);
IconDirectory dir = new IconDirectory();
dir.wReserved = 0;
dir.wType = (ushort)(Type == IconType.Icon ? 1u : 2u);
dir.wCount = (ushort)_images.Count;
dir.Write(wtr);
foreach (IconImage image in _images)
{
ResIconDirectoryEntry entry = new ResIconDirectoryEntry();
entry.bWidth = (byte)image.Size.Width;
entry.bHeight = (byte)image.Size.Height;
entry.bColorCount = image.ColorCount;
entry.bReserved = 0;
entry.wPlanes = image.Planes;
entry.wBitCount = image.BitCount;
entry.dwBytesInRes = (uint)image.ImageData.Length;
entry.wId = (ushort)image.ResourceData.Lang.Name.Identifier.NativeId.ToInt32(); // gotta love the load of dereferencing going on here
entry.Write(wtr);
}
return(ms.ToArray());
}
/// <summary>Saves as an ICO to the specified Stream</summary>
public void Save(Stream stream)
{
BinaryWriter wtr = new BinaryWriter(stream);
IconDirectory dir = new IconDirectory();
dir.wReserved = 0;
dir.wType = (ushort)(Type == IconType.Icon ? 1u : 2u);
dir.wCount = (ushort)_images.Count;
dir.Write(wtr);
//////////////////////////////////
_images.Sort();
// Calculate offsets
UInt32 offsetSoFar = (uint)(IconDirectory.Size + _images.Count * FileIconDirectoryEntry.Size);
UInt32[] offsets = new UInt32[_images.Count];
for (int i = 0; i < _images.Count; i++)
{
offsets[i] = offsetSoFar;
offsetSoFar += (uint)(_images[i] as IconImage).ImageData.Length;
if (Type == IconType.Cursor)
{
offsetSoFar -= 4;
}
}
//////////////////////////////////
for (int i = 0; i < _images.Count; i++)
{
IconImage image = _images[i] as IconImage;
FileIconDirectoryEntry entry = new FileIconDirectoryEntry();
entry.bWidth = (byte)image.Size.Width;
entry.bHeight = (byte)image.Size.Height;
entry.bColorCount = image.ColorCount;
entry.bReserved = 0;
if (Type == IconType.Icon)
{
entry.wPlanes = image.Planes;
entry.wBitCount = image.BitCount;
entry.dwBytesInRes = (uint)image.ImageData.Length;
}
else if (Type == IconType.Cursor)
{
entry.wXHotspot = (ushort)image.Hotspot.X;
entry.wYHotspot = (ushort)image.Hotspot.Y;
entry.dwBytesInRes = (uint)image.ImageData.Length - 4;
}
entry.dwImageOffset = offsets[i];
entry.Write(wtr);
}
//////////////////////////////////
for (int i = 0; i < _images.Count; i++)
{
IconImage image = _images[i] as IconImage;
if (Type == IconType.Icon)
{
wtr.Write(image.ImageData);
}
else if (Type == IconType.Cursor)
{
// the first 4 bytes (2 words) of a cursor's image data are discarded
wtr.Write(image.ImageData, 4, image.ImageData.Length - 4);
}
}
}
