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Description
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The PointsEqual
function compares Point1 and
Point2 parameter values and
returns True if they are
equal.
If either X or Y value of each point differs, then
False is returned.
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Related commands
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Bounds
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Create a TRect value from top left and size
values
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Point
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Generates a TPoint value from X and Y values
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PtInRect
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Tests to see if a point lies
within a rectangle
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Rect
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Create a TRect value from 2 points or 4
coordinates
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TPoint
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Holds X and Y integer values
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TRect
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Holds rectangle coordinate values
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Example code : Compare
different and identical points
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// Full Unit code.
//
-----------------------------------------------------------
// You must store this code in a unit called
Unit1 with a form
// called Form1 that has an
OnCreate event called
FormCreate.
unit Unit1;
interface
uses
Classes,
// Unit
containing the PointsEqual command
Types,
Forms, Dialogs;
type
TForm1 =
class(TForm)
procedure
FormCreate(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm} // Include form
definitions
procedure TForm1.FormCreate(Sender:
TObject);
var
start, finish : TPoint;
begin
// Set up
the start and end points
start := Point(1, 2);
finish := Point(3, 4);
// Is the
start point equal to the finish
point?
if PointsEqual(start,
finish)
then ShowMessage('1,2
= 3,4')
else ShowMessage('1,2 <>
3,4');
// Try
using PointsEqual with identical
values
if PointsEqual(Point(2,9),
Point(2,9))
then ShowMessage('2,9
= 2,9')
else ShowMessage('2,9 <>
2,9');
end;
end.
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Hide full
unit code
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1,2 <> 3,4
2,9 = 2,9
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