Re: Using L_TwainCreateNumericContainerOneValue and L_TwainSetCapability for string values?

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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Tuesday, April 1, 2008 12:25:12 PM(UTC)

KGudgeirsson

Groups: Registered
Posts: 8

I am trying to set CAP_PRINTERSTRING for an endorser.

How do I set a capability that only accepts string values?

L_TwainCreateNumericContainerOneValue (pCapability, Type, uValue) will only accept L_UINT32.

Is there another call that will allow me to place a string value into a pCapability?


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#2 Posted : Wednesday, April 2, 2008 4:20:16 AM(UTC)

Maen Hasan

Groups: Registered, Tech Support
Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

Hello,

You can set the capability that only accepts string values by using the following code:
+---------+
L_INT nRet;
TW_CAPABILITY twCap;
TW_CAPABILITY twCapGet;
TW_STR1024 twString;
...
nRet = L_TwainStartCapsNeg(g_hTwain);

twCap.Cap = CAP_AUTHOR;
twCap.ConType = TWON_ONEVALUE;

nRet = L_TwainCreateNumericContainerOneValue(&twCap, TWAINNUMERICTYPE_TW_STR128, (L_UINT32)"Test");

nRet = L_TwainSetCapability(g_hTwain, &twCap, LTWAIN_CAPABILITY_SET);

...
twCapGet.Cap = CAP_AUTHOR;
twCapGet.ConType = TWON_ONEVALUE;

nRet = L_TwainGetCapability (g_hTwain, &twCapGet, LTWAIN_CAPABILITY_GETCURRENT);

nRet = L_TwainGetNumericContainerSTRINGValue (&twCapGet, 0, twString);
+---------+

Thanks,
Maen Badwan
LEADTOOLS Technical Support

#3 Posted : Wednesday, April 2, 2008 1:14:51 PM(UTC)

KGudgeirsson

Groups: Registered
Posts: 8

Worked like a charm. Thanks!

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