CryptMemRealloc function (wincrypt.h)

The CryptMemRealloc function frees the memory currently allocated for a buffer and allocates memory for a new buffer.


LPVOID CryptMemRealloc(
  [in] LPVOID pv,
  [in] ULONG  cbSize


[in] pv

A pointer to a currently allocated buffer.

[in] cbSize

Number of bytes to be allocated.

Return value

Returns a pointer to the buffer allocated. If the function fails, NULL is returned. When you have finished using the buffer, free the memory by calling the CryptMemFree function.


Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header wincrypt.h
Library Crypt32.lib
DLL Crypt32.dll

See also