void Save()
{
if (!_sfd.ShowDialog().Value)
return;
try
{
using (var nico = new Ico())
{
foreach (var item in IconFrames)
nico.Add(item.Bitmap, item.Size, item.KeepAspectRatio);
nico.Save(_sfd.FileName);
}
}
catch { }
}
public static Ico Extract(string FileName, int Index)
{
var module = LoadLibrary(FileName);
try
{
// Negative Index stands for Resource ID.
var resourceData = LoadResource(module, Index < 0 ? Kernel32.FindResource(module, new IntPtr(-Index), ResourceType.GroupIcon)
: FindResource(module, Index, ResourceType.GroupIcon));
// Convert the resouce into an .ico file image.
using (var resourceReader = new BinaryReader(new MemoryStream(resourceData)))
{
// Read the GroupIconDir header.
resourceReader.ReadInt16(); // Reserved
resourceReader.ReadInt16(); // icon
int numEntries = resourceReader.ReadInt16();
var icons = new Ico();
for (var i = 0; i < numEntries; i++)
{
using (var icoStream = new MemoryStream())
using (var icoWriter = new BinaryWriter(icoStream))
{
// Write the IconDir header.
icoWriter.Write((short)0); // Reserved
icoWriter.Write((short)1); // icon
icoWriter.Write((short)1); // make single image icon
// Read the GroupIconDirEntry.
var grpEntry = resourceReader.Read<IconEntry>();
var iconId = resourceReader.ReadInt16();
// Write the IconDirEntry.
grpEntry.Write(icoStream);
icoWriter.Write(22); // offset
// Get the icon image raw data and write it to the stream.
var imgBuf = LoadResource(module, Kernel32.FindResource(module, (IntPtr)iconId, ResourceType.Icon));
icoWriter.Write(imgBuf);
icoStream.Seek(0, SeekOrigin.Begin);
try
{
icons.Add(new Icon(icoStream).ToBitmap(), grpEntry.Width);
}
catch (ArgumentOutOfRangeException)
{
icons.Add(new Bitmap(new MemoryStream(imgBuf)), grpEntry.Width == 0 ? 256 : grpEntry.Width);
}
}
}
return icons;
}
}
finally { Kernel32.FreeLibrary(module); }
}