GetMem procedure

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Standard Units

System Unit

System Unit Procedures and Functions

GetMem procedure

Targets: MS-DOS, OS/2, Win32
System Unit

Creates a dynamic variable of the specified size and puts the address of the block in a pointer variable.

Declaration:

procedure GetMem(var P: Pointer; Size: Longint);

Remarks:
To reference the new variable, use P^. If GetMem finds that there is an insufficient amount of free heap, a runtime error is generated.

Example:

{$ifndef __CON__}
  This program must be compiled as console application only
{ $endif}
uses Crt;
var
  ScrnImage : Pointer;
  Size      : Longint;
begin
  Size := SaveScreenSize(10, 10, 20, 20);
  GetMem(ScrnImage, Size);
  if ScrnImage = nil then Halt(1);
  SaveScreen(10,1 0, 20, 20, ScrnImage^);
  ClrScr;
  ...
end.

See also:
FreeMem


GetLocaleStr function	Table of Content	Halt procedure

- 4.62.2.36 -