public static void CreateDelta(string originalFile, string newFile, string deltaFile, bool isExecutable)
{
DELTA_INPUT options = new DELTA_INPUT();
long fileType = isExecutable ? NativeConstants.DELTA_FILE_TYPE_SET_EXECUTABLES : NativeConstants.DELTA_FILE_TYPE_RAW;
NativeMethods.CreateDeltaW(
NativeConstants.DELTA_FILE_TYPE_SET_EXECUTABLES,
NativeConstants.DELTA_FLAG_NONE,
NativeConstants.DELTA_FLAG_NONE,
originalFile,
newFile,
null,
null,
options,
IntPtr.Zero,
0,
deltaFile);
}
private static bool CheckApiSupport()
{
if (Environment.OSVersion.Platform == PlatformID.Win32NT &&
Environment.OSVersion.Version.Major >= 6)
{
// Windows Vista or later
return true;
}
try
{
// Try to call the API.
DELTA_INPUT options = new DELTA_INPUT();
NativeMethods.CreateDeltaW(
NativeConstants.DELTA_FILE_TYPE_SET_EXECUTABLES,
NativeConstants.DELTA_FLAG_NONE,
NativeConstants.DELTA_FLAG_NONE,
null,
null,
null,
null,
options,
IntPtr.Zero,
0,
null);
// The API is supported.
return true;
}
catch (DllNotFoundException)
{
// Unable to load DLL 'msdelta.dll'
return false;
}
catch (Exception)
{
return false;
}
}
public static extern bool GetDeltaInfoB(DELTA_INPUT Delta, [OutAttribute()] out DELTA_HEADER_INFO lpHeaderInfo);
public static extern bool GetDeltaSignatureB(long FileTypeSet, uint HashAlgId, DELTA_INPUT Source, [OutAttribute()] out DELTA_HASH lpHash);
public static extern bool DeltaNormalizeProvidedB(long FileTypeSet, long NormalizeFlags, DELTA_INPUT NormalizeOptions, System.IntPtr lpSource, uint uSourceSize);
public static extern bool CreateDeltaB(long FileTypeSet, long SetFlags, long ResetFlags, DELTA_INPUT Source, DELTA_INPUT Target, DELTA_INPUT SourceOptions, DELTA_INPUT TargetOptions, DELTA_INPUT GlobalOptions, [InAttribute()] System.IntPtr lpTargetFileTime, uint HashAlgId, [OutAttribute()] out DELTA_OUTPUT lpDelta);
public static extern bool CreateDeltaA(long FileTypeSet, long SetFlags, long ResetFlags, [InAttribute()] [MarshalAsAttribute(UnmanagedType.LPStr)] string lpSourceName, [InAttribute()] [MarshalAsAttribute(UnmanagedType.LPStr)] string lpTargetName, [InAttribute()] [MarshalAsAttribute(UnmanagedType.LPStr)] string lpSourceOptionsName, [InAttribute()] [MarshalAsAttribute(UnmanagedType.LPStr)] string lpTargetOptionsName, DELTA_INPUT GlobalOptions, [InAttribute()] System.IntPtr lpTargetFileTime, uint HashAlgId, [InAttribute()] [MarshalAsAttribute(UnmanagedType.LPStr)] string lpDeltaName);
public static extern bool ApplyDeltaProvidedB(long ApplyFlags, DELTA_INPUT Source, DELTA_INPUT Delta, System.IntPtr lpTarget, uint uTargetSize);
public static extern bool ApplyDeltaB(long ApplyFlags, DELTA_INPUT Source, DELTA_INPUT Delta, [OutAttribute()] out DELTA_OUTPUT lpTarget);