c++ - C# code to open regular HP QT457AA cashdrawer -

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i got hp qt457aa cashdrawer connected rj-12 cable hp rp7800 (which has rj-12 slot).

i have searched along time couldnt find helpful how open it( directly - without receipt printer)

i downloaded pos sdk in thread: open cash drawer problem there examples how cashdrawer connected through com port, mine connected rj-12 , thats why im struggling

but im rather clueless visual studio 2015. know i'm asking alot , thankful help.

edit: forgot mention tested if opens automatically using test apps opos , microsoft pos sdk , worked after claiming , "opening" it

download correct hp drivers computer's cash drawer port

if opos drivers installed, can download hp opos logical name utility link above. can give whatever name want device can access calling name. don't need deal ports. search samples opos cash drawer control or use sample in microsoft point of service sdk.

microsoft point of service .net v1.14 (pos .net)


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