B4R Question EscPosPrinter Thermal Printer

[embedded]

I am working on a project in which thermal printer is used. There is a class in B4A Name EscPosPrinter written by Agraham. Can we use this class in B4R.

 

[agraham]

Possibly with some modification. It uses the B4A Serial library to connect to a Bluetooth printer and uses AsyncStreams with the input and output stream from the connected Serial object, though the input stream is not used by the EscPosPrinter class.

I don't know how much of the B4X language is implemented in B4R but once the printer is connected the actual printing code vectors all output as bytes through a 'WriteBytes' function and strings through a 'WriteString2' function which you could modify to send the data to however your printer is connected. I don't know if B4R supports Unicode internally so there might be mods needed to the 'WriteString2' function which re-codes Unicode to the printer code page.

 

[candide]

a library is available for arduino, but i don't know if it is what you want because it is with serial connection:

GitHub - cranties/escposprinter: Arduino ESC/POS Printer Driver

Arduino ESC/POS Printer Driver. Contribute to cranties/escposprinter development by creating an account on GitHub.

github.com

 

[embedded]

Possibly with some modification. It uses the B4A Serial library to connect to a Bluetooth printer and uses AsyncStreams with the input and output stream from the connected Serial object, though the input stream is not used by the EscPosPrinter class.

I don't know how much of the B4X language is implemented in B4R but once the printer is connected the actual printing code vectors all output as bytes through a 'WriteBytes' function and strings through a 'WriteString2' function which you could modify to send the data to however your printer is connected. I don't know if B4R supports Unicode internally so there might be mods needed to the 'WriteString2' function which re-codes Unicode to the printer code page.

With some modification....it is usable.....Thanks for making the EscPOSPrinter class. After some time i will put an example of thermal printer with ESP32. Thanks