IpcfWriteFile function

Modifies protected content of a protected file to a given logical file range.

Syntax

EXTERN_C HRESULT WINAPI IpcfWriteFile(
  _In_    IPCF_FILE_HANDLE  hFile,
  _In_    PCIPCF_FILE_RANGE pDataRange,
  _In_    PBYTE             pvBuffer,
  _Inout_ DWORD64           *cbBufferSize
);

Parameters

hFile [in]

Handle to the protected file.

This needs to be obtained from the function IpcfOpenFileOnILockBytes or IpcfOpenFileOnHandle.

pDataRange [in]

Pointer to IPCF_FILE_RANGE structure indicating the data range to write.

pvBuffer [in]

The unencrypted data which needs to be written at the given data range specified through pDataRange.

cbBufferSize [in, out]

Pointer to size of pvBuffer in bytes.

On return, this contains the actual number of bytes written to the file represented by hFile parameter.

Return value

If the function succeeds, the return value is S_OK. If the function fails, it returns an HRESULT value that indicates the error.

For more information, see Error codes for a description of all RMS SDK 2.1 return values.

Requirements