paxCompiler/help/pascal_callback.htm
Dalibor Marković 9d0de424e8
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Signed-off-by: Dalibor Marković <dalibor31@gmail.com>
2024-07-06 22:28:12 +02:00

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Pascal samples. Script-defined callback functions.
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<font color="blue"><b>uses</b></font> Classes;
<font color="blue"><b>function</b></font> Compare(Item1, Item2: Pointer): Integer; <font color="blue"><b>register</b></font>;
<font color="blue"><b>begin</b></font>
<font color="blue"><b>if</b></font> Integer(Item1) > Integer(Item2) <font color="blue"><b>then</b></font>
result := 1
<font color="blue"><b>else</b></font> <font color="blue"><b>if</b></font> Integer(Item1) < Integer(Item2) <font color="blue"><b>then</b></font>
result := -1
<font color="blue"><b>else</b></font>
result := 0;
<font color="blue"><b>end</b></font>;
<font color="blue"><b>var</b></font>
L: TList;
I: Integer;
<font color="blue"><b>begin</b></font>
L := TList.Create;
L.Add(Pointer(3));
L.Add(Pointer(1));
L.Add(Pointer(2));
L.Add(Pointer(6));
L.Add(Pointer(4));
L.Add(Pointer(5));
L.Sort(@Compare);
<font color="blue"><b>for</b></font> I:=0 <font color="blue"><b>to</b></font> L.Count - 1 <font color="blue"><b>do</b></font>
writeln(Integer(L[I]));
L.Free;
<font color="blue"><b>end</b></font>.
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Copyright &copy; 2006-2009
VIRT Laboratory. All rights reserved.
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