TdxListViewCompareProc Type

A callback reference to a function that compares two list items.

Declaration

TdxListViewCompareProc = function(AItem1: TdxListItem; AItem2: TdxListItem; AData: TdxNativeInt): Integer;

Parameters

Name	Type	Description
AItem1	TdxListItem	The first target list item.
AItem2	TdxListItem	The second target list item.
AData	TdxNativeInt	Specifies a pointer to additional data for the custom comparison routine.

Referenced Class

Type	Description
Integer	The result of the comparison.

Remarks

The following table lists the values that a comparison function can return:

Value	Description
A negative integer value	AItem1 is positioned before AItem2.
0	AItem1 is positioned before AItem2.
A positive integer value	AItem is positioned after AItem2.

The List View’s CustomSort function references the TdxListViewCompareProc type.