GetFilePatchSignatureW

function GetFilePatchSignatureW(

  FileName: LPCWSTR;

  OptionFlags: ULONG;

  OptionData: PVOID;

  IgnoreRangeCount: ULONG;

  IgnoreRangeArray: PPATCH_IGNORE_RANGE;

  RetainRangeCount: ULONG;

  RetainRangeArray: PPATCH_RETAIN_RANGE;

  SignatureBufferSizeInBytes: ULONG;

  SignatureBuffer: PVOID

):BOOL;