twain scan front/back

[ator]

Hello,
i use the twain library to scan page from a hp scanjet7650 which does, through its own driver, front/back scan.

So… there is a way to get front/back scan directly without do it manualy?
Of course ADF.

I hope i explained myself clearly and i’m sorry for my bad english 🙂

Thx

[june5]

1. Check CAP_DUPLEX. If it is TWDX_1PASSDUPLEX or TWDX_2PASSDUPLEX, the scanner supports duplex scanning.
2. Set CAP_DUPLEXENABLED to TRUE to enable duplex scanning.
3. Start scanning.
See TWAIN specification for details.

[ator]

Thx a lot 🙂

Ator

[MonkFox]

when you say check the cap_duplex cap, this is the way I did it:

rc = DSCap(twident,src,dg_control,dat_cap,msg_get,twcap.cap_duplex(1))

if rc <> twrc.success then

closeSRC()
return

end if

so if that returns success then it supports the duplex (1passduplex) right?
Then set the CAP_ENABLEDUPLEX -> 1

Thanks,

Justin

[Author]

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