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    GetMem

    Allocate new memory on the heap.

    Declaration

    Source position: heaph.inc line 84

    procedure Getmem(out p: pointer; Size: PtrUInt);

    function GetMem(size: PtrUInt) : pointer;

    Description

    Getmem reserves Size bytes memory on the heap, and returns a pointer to this memory in p. What happens if no more memory is available, depends on the value of the variable ReturnNilIfGrowHeapfails: if the variable is True then Nil is returned. If the variable is False, a run-time error is generated. The default value is False, so by default an error is generated.

    The newly allocated memory is not initialized in any way, and may contain garbage data. It must be cleared with a call to FillChar or FillWord.

    For an example, see Freemem.

    Errors

    None.

    See also

    Name Description
    Freemem Release allocated memory.
    Dispose Free dynamically allocated memory.
    New Dynamically allocate memory for variable.
    returnnilifgrowheapfails Describe behaviour if getmem fails.
    MemSize Return the size of a memory block.