Mega Code Archive
Dispose - dispose of storage used by a pointer type variable system unit
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1 procedure Dispose ( var VariablePointer : Pointer-Type ) ;
2 procedure Dispose ( var ObjectPointer : Object-Pointer; Destructor ) ;
Description
The Dispose procedure comes in two flavours.
The older version is an obsolete method of destroying objects (you should now call the class destructor instead).
The first version frees storage used by a pointer type variable VariablePointer.
You should use Dispose when no longer using a variable allocated using New.
Notes
Warning : the variable is undefined after calling Dispose. It is not set to nil.
Related commands
FreeMem Free memory storage used by a variable
GetMem Get a specified number of storage bytes
New Create a new pointer type variable
ReallocMem Reallocate an existing block of storage
Example code : Allocate memory for a record, assign to it, and then dispose of it
type
TCustomer = Record
name : string[20];
age : Byte;
end;
var
custRecPtr : ^TCustomer;
begin
// Create a customer record using 'New'
New(custRecptr);
// Assign values to it
custRecPtr.name := 'Her indoors';
custRecPtr.age := 55;
// Now display these values
ShowMessageFmt('%s is %d',[custRecPtr.name, custRecPtr.age]);
// Now dispose of this allocated record
Dispose(custRecPtr);
end;
Show full unit code
Her indoors is 55
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