What ^GB does
^GB draws rectangles, horizontal/vertical lines, and filled blocks. Set width, height, and border thickness in dots. A line is just a box with zero height (or width). Filled boxes are the basis for reverse-print callouts with ^FR.
Syntax
^GBw,h,t,c,rParameters
| Parameter | Description | Values | Default |
|---|---|---|---|
w | Box width, dots | — | — |
h | Box height, dots | — | — |
t | Border thickness, dots | — | 1 |
c | Line colour | B, W | B |
r | Corner rounding | 0–8 | 0 |
Example
^XA
^FO50,50^GB500,3,3^FS
^FO50,80^GB200,100,4^FS
^XZFirst ^GB is a horizontal line; second is a bordered box.
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Related commands
See the full ZPL command reference for all 92 documented commands.