drawArc(x1: Real;
y1: Real;
x2: Real;
y2: Real;
startX: Real;
startY: Real;
endX: Real;
endY: Real;
color: Integer);
The drawArc method of the Window class draws an elliptical arc on a form or control using a pen the width of the drawWidth property value, using the style of the drawStyle property and the mode of the drawMode property.
If this method is not called from a paint event, set the autoRedraw property to true.
The drawArc method parameters are listed in the following table.
| Parameter | Description |
|---|---|
| x1, y1, x2, y2 | Rectangle bounding the ellipse of which the arc is a part |
| startX, startY | Logical x and y (horizontal and vertical) coordinates of the point that defines the starting point of the arc |
| endX, endY | Logical x and y coordinates of the point that defines the end point of the arc |
| color | Color of the pen used |
The parameter position units are
The startX, startY, endX, and endY parameter points do not need to lie exactly on the arc.
The starting point of the arc is the point at which a ray drawn from the center of the bounding rectangle through the specified starting point intersects the ellipse.
The end point of the arc is the point at which a ray drawn from the center of the bounding rectangle through the specified end point intersects the ellipse.
The arc is drawn in a counterclockwise direction. As an arc is not a closed figure, it is not filled.
The width and height of a rectangle must each be in the range 2 units through 32,767 units.