public IconFile FromFile(string filename)
{
byte[] fileBytes = System.IO.File.ReadAllBytes(filename);
GCHandle pinnedBytes = GCHandle.Alloc(fileBytes, GCHandleType.Pinned);
IconFile instance = new IconFile();
{
iconDir = (IconInjector.ICONDIR)Marshal.PtrToStructure(pinnedBytes.AddrOfPinnedObject(), typeof(IconInjector.ICONDIR));
iconEntry = new IconInjector.ICONDIRENTRY[instance.iconDir.Count];
iconImage = new byte[instance.iconDir.Count][];
}
int offset = Marshal.SizeOf(instance.iconDir);
Type iconDirEntryType = typeof(IconInjector.ICONDIRENTRY);
int size = Marshal.SizeOf(iconDirEntryType);
for (int i = 0; i < instance.iconDir.Count - 1; i++)
{
IconInjector.ICONDIRENTRY entry =
(IconInjector.ICONDIRENTRY)
Marshal.PtrToStructure(new IntPtr(pinnedBytes.AddrOfPinnedObject().ToInt64() + offset),
iconDirEntryType);
instance.iconEntry[i] = entry;
instance.iconImage[i] = new byte[entry.ByteInRes];
Buffer.BlockCopy(fileBytes, entry.ImageOffset, instance.iconImage[i], 0, entry.ByteInRes);
offset += size;
}
pinnedBytes.Free();
return instance;
}
public IconFile FromFile(string filename)
{
byte[] fileBytes = System.IO.File.ReadAllBytes(filename);
GCHandle pinnedBytes = GCHandle.Alloc(fileBytes, GCHandleType.Pinned);
IconFile instance = new IconFile();
{
iconDir = (IconInjector.ICONDIR)Marshal.PtrToStructure(pinnedBytes.AddrOfPinnedObject(), typeof(IconInjector.ICONDIR));
iconEntry = new IconInjector.ICONDIRENTRY[instance.iconDir.Count];
iconImage = new byte[instance.iconDir.Count][];
}
int offset = Marshal.SizeOf(instance.iconDir);
Type iconDirEntryType = typeof(IconInjector.ICONDIRENTRY);
int size = Marshal.SizeOf(iconDirEntryType);
for (int i = 0; i < instance.iconDir.Count - 1; i++)
{
IconInjector.ICONDIRENTRY entry =
(IconInjector.ICONDIRENTRY)
Marshal.PtrToStructure(new IntPtr(pinnedBytes.AddrOfPinnedObject().ToInt64() + offset),
iconDirEntryType);
instance.iconEntry[i] = entry;
instance.iconImage[i] = new byte[entry.ByteInRes];
Buffer.BlockCopy(fileBytes, entry.ImageOffset, instance.iconImage[i], 0, entry.ByteInRes);
offset += size;
}
pinnedBytes.Free();
return(instance);
}
public static void InjectIcon(string exeFileName, string iconFileName, int iconGroupID, uint iconBaseID)
{
const uint RT_ICON = 3;
IntPtr RT_GROUP_ICON = new IntPtr(14);
IconFile iconFile = new IconFile().FromFile(iconFileName);
IntPtr hUpdate = NativeMethods.BeginUpdateResource(exeFileName, false);
byte[] data = iconFile.CreateIconGroupData(iconBaseID);
NativeMethods.UpdateResource(
hUpdate, RT_GROUP_ICON, new IntPtr(iconGroupID), 0, data, data.Length);
for (int i = 0; i < iconFile.ImageCount - 1; i++)
{
byte[] image = iconFile.ImageData(i);
NativeMethods.UpdateResource(hUpdate, new IntPtr(RT_ICON), new IntPtr(iconBaseID + i), 0, image,
image.Length);
}
NativeMethods.EndUpdateResource(hUpdate, false);
}
public static void InjectIcon(string exeFileName, string iconFileName, int iconGroupID, uint iconBaseID)
{
const uint RT_ICON = 3;
IntPtr RT_GROUP_ICON = new IntPtr(14);
IconFile iconFile = new IconFile().FromFile(iconFileName);
IntPtr hUpdate = NativeMethods.BeginUpdateResource(exeFileName, false);
byte[] data = iconFile.CreateIconGroupData(iconBaseID);
NativeMethods.UpdateResource(
hUpdate, RT_GROUP_ICON, new IntPtr(iconGroupID), 0, data, data.Length);
for (int i = 0; i < iconFile.ImageCount - 1; i++)
{
byte[] image = iconFile.ImageData(i);
NativeMethods.UpdateResource(hUpdate, new IntPtr(RT_ICON), new IntPtr(iconBaseID + i), 0, image,
image.Length);
}
NativeMethods.EndUpdateResource(hUpdate, false);
}
