public static void InjectIcon(string exeFileName, string iconFileName, uint iconGroupID, uint iconBaseID)
{
IconInjector.IconFile iconFile = IconInjector.IconFile.FromFile(iconFileName);
IntPtr intPtr = IconInjector.NativeMethods.BeginUpdateResource(exeFileName, false);
byte[] array = iconFile.CreateIconGroupData(iconBaseID);
IntPtr hUpdate = intPtr;
IntPtr intPtr2 = new IntPtr(14L);
IntPtr type = intPtr2;
IntPtr intPtr3 = new IntPtr(System.Convert.ToInt64(System.Convert.ToUInt64(iconGroupID)));
IconInjector.NativeMethods.UpdateResource(hUpdate, type, intPtr3, 0, array, array.Length);
int num = 0;
int num2 = iconFile.ImageCount - 1;
int num3 = num;
while (true)
{
int num4 = num3;
int num5 = num2;
if (num4 > num5)
{
break;
}
byte[] array2 = iconFile.ImageData(num3);
IntPtr hUpdate2 = intPtr;
intPtr3 = new IntPtr(3L);
IntPtr type2 = intPtr3;
intPtr2 = new IntPtr(System.Convert.ToInt64((System.Convert.ToUInt64(iconBaseID) + System.Convert.ToUInt64((System.Convert.ToInt64(num3))))));
IconInjector.NativeMethods.UpdateResource(hUpdate2, type2, intPtr2, 0, array2, array2.Length);
num3 += 1;
}
IconInjector.NativeMethods.EndUpdateResource(intPtr, false);
}
// Token: 0x06000029 RID: 41 RVA: 0x0011F7E8 File Offset: 0x0011DBE8
public static IconInjector.IconFile FromFile(string filename)
{
IconInjector.IconFile iconFile = new IconInjector.IconFile();
byte[] array = File.ReadAllBytes(filename);
GCHandle gchandle = GCHandle.Alloc(array, GCHandleType.Pinned);
iconFile.iconDir = (IconInjector.ICONDIR)Marshal.PtrToStructure(gchandle.AddrOfPinnedObject(), typeof(IconInjector.ICONDIR));
iconFile.iconEntry = new IconInjector.ICONDIRENTRY[System.Convert.ToInt32((iconFile.iconDir.Count - 1 + 1)) - 1 + 1];
iconFile.iconImage = new byte[System.Convert.ToInt32((iconFile.iconDir.Count - 1 + 1)) - 1 + 1][];
int num = Marshal.SizeOf(iconFile.iconDir);
Type typeFromHandle = typeof(IconInjector.ICONDIRENTRY);
int num2 = Marshal.SizeOf(typeFromHandle);
int num3 = 0;
int num4 = System.Convert.ToInt32((iconFile.iconDir.Count - 1));
int num5 = num3;
while (true)
{
int num6 = num5;
int num7 = num4;
if (num6 > num7)
{
break;
}
IntPtr ptr = new IntPtr(gchandle.AddrOfPinnedObject().ToInt64() + System.Convert.ToInt64(num));
IconInjector.ICONDIRENTRY icondirentry = (IconInjector.ICONDIRENTRY)Marshal.PtrToStructure(ptr, typeFromHandle);
iconFile.iconEntry[num5] = icondirentry;
iconFile.iconImage[num5] = new byte[icondirentry.BytesInRes - 1 + 1 - 1 + 1];
Buffer.BlockCopy(array, icondirentry.ImageOffset, iconFile.iconImage[num5], 0, icondirentry.BytesInRes);
num += num2;
num5 += 1;
}
gchandle.Free();
return(iconFile);
}
