IMalloc::GetSize method (objidlbase.h)

Retrieves the size of a previously allocated block of memory.

Syntax

SIZE_T GetSize(
  [in] void *pv
);

Parameters

[in] pv

A pointer to the block of memory.

Return value

The size of the allocated memory block in bytes or, if pv is a NULL pointer, -1.

Remarks

To get the size in bytes of a memory block, the block must have been previously allocated with IMalloc::Alloc or IMalloc::Realloc. The size returned is the actual size of the allocation, which may be greater than the size requested when the allocation was made.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	objidlbase.h (include ObjIdl.h)

See also

IMalloc