Android Question Have to use Doevents in Bluetooth printer

rafaelmotaquintana · Jun 18, 2017

I have this piece of code

B4X:

Sub PrintLine(wLinea As String)
    printer.Write(wLinea) 
    printer.Flush
    f.ForceDoevents(20) 'this function repeat the doevents n times
End Sub

Printline send a line to a bluetooth printer.
Several lines are sent one after another.
If I don't use the doevents, printing is truncated at some point. As using doevents has been recommended not top be used, what should I do here?

Peter Simpson · Jun 18, 2017

@rafaelmotaquintana what BT printer are you using, is it a Drucker, you do not need DoEvents???

Erel · Jun 19, 2017

You need to post the code that calls PrintLine.

It should be something like:

B4X:

For Each line In lines
 PrintLine(line)
 Sleep(50)
Next

rafaelmotaquintana · Jun 20, 2017

The version I'm using does not support sleep. I'll try with the newer version.

Android Question Have to use Doevents in Bluetooth printer

rafaelmotaquintana

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Peter Simpson

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Erel

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rafaelmotaquintana

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Android Question Have to use Doevents in Bluetooth printer

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