QBasic 1.1: DRAW Statement

Explanation

Draws an object.

Useful and cross-version information about the programming environments of QBasic, QuickBasic and Visual Basic for DOS.

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DRAW commandstring$

commandstring$

A string expression that contains one or more of the following DRAW commands.

Line-drawing and cursor-movement commands:
D[n%]	Moves cursor down n% units.
E[n%]	Moves cursor up and right n% units.
F[n%]	Moves cursor down and right n% units.
G[n%]	Moves cursor down and left n% units.
H[n%]	Moves cursor up and left n% units.
L[n%]	Moves cursor left n% units.
M[{+\|-}]x%,y%	Moves cursor to point x%,y%. If x% is preceded by + or -, moves relative to the current point.
R[n%]	Moves cursor right n% units.
U[n%]	Moves cursor up n% units.
[B]	Optional prefix that moves cursor without drawing.
[N]	Optional prefix that draws and returns cursor to its original position.
Color, rotation, and scale commands:
An%	Rotates an object n% * 90 degrees (n% can be 0, 1, 2, or 3).
Cn%	Sets the drawing color (n% is a color attribute).
Pn1%,n2%	Sets the paint fill and border colors of an object (n1% is the fill-color attribute, n2% is the border-color attribute).
Sn%	Determines the drawing scale by setting the length of a unit of cursor movement. The default n% is 4, which is equivalent to 1 pixel.
TAn%	Turns an angle n% degrees (-360 through 360).

If you omit n% from line-drawing and cursor-movement commands, the cursor moves 1 unit.

To execute a DRAW command substring from a DRAW command string, use the "X" command:

DRAW "X"+ VARPTR$(commandstring$)


'This example requires a color graphics adapter.
SCREEN 1
Triangle$ = "F60 L120 E60"
DRAW "C2 X" + VARPTR$(Triangle$)
DRAW "BD30 P1,2 C3 M-30,-30"