Memory Management Routines
These API routines allow you to manipulate and allocate memory for your API functions.
- _Alloca( ) API Library Routine
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Allocates a block of stack space for the calling routine. Memory is automatically freed when the routine exits.
- _AllocHand( ) API Library Routine
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Returns a new MHANDLE of size hsize. A value of zero is returned when there is insufficient memory to fulfill the request. Memory allocated with _AllocHand( ) isn't initialized.
- _FreeHand( ) API Library Routine
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Releases an MHANDLE previously allocated by means such as _AllocHand( ).
- _GetHandSize( ) API Library Routine
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Returns the usable number of bytes associated with an MHANDLE.
- _HandToPtr( ) API Library Routine
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Translates an MHANDLE to a FAR (32-bit) pointer, which points to the memory allocated to this MHANDLE.
- _HLock( ) API Library Routine
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Locks an MHANDLE to prevent it from moving if Visual FoxPro requires memory reorganization.
- _HUnLock( ) API Library Routine
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Unlocks an MHANDLE, allowing it to participate in Visual FoxPro memory reorganization.
- _MemAvail( ) API Library Routine
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Returns True if a request to allocate a handle of size bytes will succeed. Otherwise, _MemAvail( ) returns False.
- _MemCmp( ) API Library Routine
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Compares two length byte memory areas.
- _MemFill( ) API Library Routine
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Fills an area of memory starting at the location pointed to by ptr with length copies of the byte in character.
- _MemMove( ) API Library Routine
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Copies length bytes from src to dest.
- _SetHandSize( ) API Library Routine
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Changes the amount of memory allocated to an MHANDLE. The routine returns True if the reallocation is successful or False if the reallocation fails.
