DrawArc

向量圖形

描述

在所選頁面上畫圓弧,從 StartAngle 到 EndAngle 順時針方向繪製

語法

Delphi

Function TPDFlib.DrawArc(XPos, YPos, Radius, StartAngle, EndAngle: Double; Pie, DrawOptions: Integer): Integer;

ActiveX

Function PDFlib::DrawArc(XPos As Double, YPos As Double, Radius As Double, StartAngle As Double, EndAngle As Double, Pie As Long, DrawOptions As Long) As Long

DLL

int DLDrawArc(int InstanceID, double XPos, double YPos, double Radius, double StartAngle, double EndAngle, int Pie, int DrawOptions);

參數

XPos弧圓心的水平座標
YPos弧圓心的垂直座標
Radius弧的半徑 開始描繪的角度
StartAngle
EndAngleAngle to end drawing at
Pie是否畫出弧的兩臂:0 = 否 1 = 是
DrawOptions0 = 外框 1 = 填色 2 = 填色加外框 3 = 封閉、填色加外框(Pie = 1 時)