Sets symbol s to be active.

SetActSymbol (s : STRING);

Sets the current constrain mode.

SetConstrain(s : STRING);

Sets the current tool from the palette.

SetTool(theTool : INTEGER);

Sets one of the standard units.

Units(StandardUnit : INTEGER;  DisplayAccuracy : LONGINT);

Sets customized units.

SetUnits(Fraction, DisplayAccuracy : LONGINT;  Format : INTEGER; UnitsPerInch : REAL; UnitMark, SqrUnitMark : STRING);

Activates the snap options :
TRUE = on
FALSE = off

Snap(Grid, Object, Locus : BOOLEAN);

Sets the scale of the objects.
2 = 1/2 scale
4 = 1/4 scale

SetScale(ActualSize : REAL);

Moves the origin to the point (X, Y).

SetOrigin(X, Y : REAL);

Redraws screen.

Redraw;

Sets the smallest mouse increment.

PenGrid(Distance : REAL);

Sets the distance between the gridlines on the screen.

GridLines(Distance : REAL);

Sets the overall drawing sheet area of a MiniCad file

DrwSize(Rows, Columns : INTEGER);

Sets the distance between double lines.

DoubLines(Distance : REAL);

Must be called before using variable angles.

AngleVar;

Sets the point-designation method to relative.

Relative;

Sets the point-designation method to absolute.

Absolute;