Arc

機能

円弧を描画する

Declare Function Arc lib "gdi32.dll" _

        (ByVal hdc As Long, ByVal nLeftRect As Long, ByVal nTopRect As Long, _

        ByVal nRightRect As Long, ByVal nBottomRect As Long, _

        ByVal nXStartArc As Long, ByVal nYStartArc As Long, _

        ByVal nXEndArc As Long, ByVal nYEndArc As Long) As Long

Declare Function Arc lib "gdi32.dll" _

        (ByVal hdc As Integer, ByVal nLeftRect As Integer, ByVal nTopRect As Integer, _

        ByVal nRightRect As Integer, ByVal nBottomRect As Integer, _

        ByVal nXStartArc As Integer, ByVal nYStartArc As Integer, _

        ByVal nXEndArc As Integer, ByVal nYEndArc As Integer) As Integer

BOOL Arc(
HDC hdc,
int nLeftRect,
int nTopRect,
int nRightRect,
int nBottomRect,
int nXStartArc,
int nYStartArc,
int nXEndArc,
int nYEndArc
);
引数
hdc

デバイスコンテキストのハンドル

nLeftRect

楕円を包含する矩形の左上隅のX座標

nTopRect

同、Y座標

nRightRect

同、右下隅のX座標

nBottomRect

同、Y座標

nXStartArc

円の始点を定義するX座標

nYStartArc

同、Y座標

nXEndArc

円の終点を定義するX座標

nYEndArc

同、Y座標

戻り値

正常終了のとき                      0以外

エラーのとき                        0