Memory Management Functions

Working directly with memory is not typically required when developing in DataFlex. Normally, the runtime handles memory management for you. Memory management functions are only needed when calling Windows API functions directly, for example, by calling External_Function.

Function Reference

Function	Returns
AddressOf	Returns the address of an argument.
Alloc	Allocates a block of memory.
DeRefC	Retrieves the contents of one byte of memory using its address.
DeRefDW	Retrieves the contents of one double word (four bytes) of memory using its address.
DeRefW	Retrieves the contents of one word (two bytes) of memory using its address.
Free	Frees a block of dynamically allocated memory.
MemCompare	Compares the contents of two memory blocks.
MemCopy	Copies data from one memory address to another.
MemSet	Stores a given byte value in a memory block of a given size.
ReAlloc	Changes the size of a block of memory.
StoreC	Places a one byte value in memory using its address and an offset.
StoreDW	Places a one double-word (4-byte) value in memory using its address and an offset.
StoreW	Places a one word (2-byte) value in memory using its address and an offset.