Share via


WriteBSTR (Compact 2013)

3/26/2014

This function allocates and fills a task-allocated BSTR string.

Syntax

STDAPI WriteBSTR(
  BSTR* pstrDest,
  LPCWSTR szSrc
);

Parameters

  • pstrDest
    Pointer to where the address of the allocated BSTR will be stored.
  • szSrc
    Wide (Unicode) string that will be copied to the newly allocated BSTR string.

Return Value

Returns an HRESULT value.

Remarks

Memory is allocated for passing between objects across interfaces by calling CoTaskMemAlloc.

Memory is freed by calling CoTaskMemFree.

By using a central memory allocator, memory can be allocated, passed, and freed safely between objects created in different programming languages.

Requirements

Header

dshow.h

Library

Strmiids.lib

See Also

Reference

BSTR Functions