native_printer_open(),result = -1048663
After convert to hex value: 100057->0x57 means Too many users->Printer is occupied by app, can not open again.
How to detect paper out.
The method querystatus() returns 0.
When printing HTML, set the font-family by including quotes, for example: font-family: 'monospace'.
font-family: 'monospace'
Last updated 1 year ago
