Tilde in ZPL barcode

Certain characters seem not to be showing in GGCE.

When printing the DOI 10.18730/SCGF~ the ~ seems not to be included.

^FH in ZPL data fields

The ^FH command allows you to enter the hexadecimal value for any character directly into the ^FD statement.

^FH ^FDTilde _7e used for HEX^FS ^XZ

Note that _ is the default hexadecimal indicator and can be changed with ^FHa where a is for example \: ^FH\^FD...\1F...^FS

Characters to replace are ^ (5E), ~ (7E) and the separator character \ (1F).