private static void SaveCor( Bitmap item, Point hotspot, Stream stream, ushort type, Color transp ) {
IconFileHeader ifh = new IconFileHeader();
ifh.icoReserved = 0x0;
ifh.icoResourceCount = 1;
ifh.icoResourceType = type;
ifh.Write( stream );
IconInfoHeader iif = new IconInfoHeader();
BITMAPINFOHEADER bih = new BITMAPINFOHEADER();
iif.Width = (byte)item.Width;
iif.Height = (byte)item.Height;
iif.ColorCount = 0;
iif.Reserved1 = 0;
iif.Reserved2 = (ushort)hotspot.X;
iif.Reserved3 = (ushort)hotspot.Y;
#if RGB24
int linesize = ((item.Width * 24 + 31) / 32) * 4;
#else
int linesize = ((item.Width * 32 + 31) / 32) * 4;
#endif
int linesize_mask = ((item.Width * 1 + 31) / 32) * 4;
int size = linesize * item.Height + linesize_mask * item.Height + 40;
#if DEBUG
Console.WriteLine( "linesize=" + linesize );
#endif
iif.icoDIBSize = (uint)size;
iif.icoDIBOffset = 0x16;
iif.Write( stream );
bih.biSize = 40;
bih.biWidth = item.Width;
#if RGB24
bih.biHeight = item.Height * 2;
#else
bih.biHeight = item.Height * 2;
#endif
bih.biPlanes = 1;
#if RGB24
bih.biBitCount = 24;
#else
bih.biBitCount = 32;
#endif
bih.biCompression = 0;
bih.biSizeImage = (uint)(linesize * item.Height);
bih.biXPelsPerMeter = 0;// (int)(item.HorizontalResolution / 2.54e-2);
bih.biYPelsPerMeter = 0;// (int)(item.VerticalResolution / 2.54e-2);
bih.biClrUsed = 0;
bih.biClrImportant = 0;
bih.Write( stream );
for ( int y = item.Height - 1; y >= 0; y-- ) {
int count = 0;
for ( int x = 0; x < item.Width; x++ ) {
Color c = item.GetPixel( x, y );
stream.WriteByte( (byte)c.B );
stream.WriteByte( (byte)c.G );
stream.WriteByte( (byte)c.R );
#if DEBUG
if ( c.R != transp.R || c.G != transp.G || c.B != transp.B ) {
Console.WriteLine( "color=" + c );
}
#endif
#if RGB24
count += 3;
#else
stream.WriteByte( (byte)c.A );
count += 4;
#endif
}
for ( int i = count; i < linesize; i++ ) {
stream.WriteByte( 0x0 );
}
}
for ( int y = item.Height - 1; y >= 0; y-- ) {
int count = 0;
byte v = 0x0;
int tcount = 0;
for ( int x = 0; x < item.Width; x++ ) {
Color c = item.GetPixel( x, y );
byte tr = 0x0;
if ( c.R == transp.R && c.G == transp.G && c.B == transp.B ){
tr = 0x1;
}
v = (byte)((byte)(v << 1) | (byte)(tr & 0x1));
tcount++;
if ( tcount == 8 ) {
stream.WriteByte( v );
count++;
tcount = 0;
v = 0x0;
}
}
if ( 0 < tcount ) {
v = (byte)(v << (9 - tcount));
stream.WriteByte( v );
count++;
}
for ( int i = count; i < linesize_mask; i++ ) {
stream.WriteByte( 0x0 );
}
}
}
public static IconFileHeader Read( Stream fs ) {
IconFileHeader ifh = new IconFileHeader();
byte[] buf = new byte[2];
fs.Read( buf, 0, 2 );
ifh.icoReserved = BitConverter.ToUInt16( buf, 0 );
fs.Read( buf, 0, 2 );
ifh.icoResourceType = BitConverter.ToUInt16( buf, 0 );
fs.Read( buf, 0, 2 );
ifh.icoResourceCount = BitConverter.ToUInt16( buf, 0 );
return ifh;
}