[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'InterfaceBase' (#lcl)

TWidgetSet.Arc

Use Arc to draw an elliptically curved line with the current Pen.

Declaration

Source position: winapih.inc line 35

public function TWidgetSet.Arc(

  DC: HDC;

  Left: Integer;

  Top: Integer;

  Right: Integer;

  Bottom: Integer;

  Angle16Deg: Integer;

  Angle16DegLength: Integer

):Boolean; virtual;

Arguments

Angle16Deg

  

base angle

Angle16DegLength

  

angle length

Function result

False on failure.

Description

The arc is part of the ellipse inscribed in the bounding rectangle.

The angles angle1 and angle2 are 1/16th of a degree. For example, a full circle equals 5760 (16*360). Positive values of Angle and AngleLength mean counter-clockwise while negative values mean clockwise direction. Zero degrees is at the 3'o clock position.

The latest version of this document can be found at lazarus-ccr.sourceforge.net.