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SetBoxAlphabetHRC
2.0
Specifies the alphabet codes to use for a range of boxes.
int SetBoxAlphabetHRC( HRC hrc, LPALC rgalc, UINT cAlc )
Parameters
hrc
Handle to an HRC object.
rgalc
An array of cAlc ALC_ values. The array is mapped onto boxes starting at box zero.
cAlc
Number of ALC_ values in rgalc. This should match the number of boxes. If this parameter is 0, SetBoxAlphabetHRC simply returns 0.
Return Value
Returns HRCR_OK if successful; otherwise, returns one of the following
negative values:
Constant
| Description
| HRCR_ERROR
| Invalid parameter or other error.
| HRCR_MEMERR
| Insufficient memory.
| HRCR_UNSUPPORTED
| The recognizer does not support this function.
|
Comments
SetBoxAlphabetHRC applies only when an HRC has been configured for box guides with the SetGuideHRC function. Although SetAlphabetHRC can also specify an alphabet set for boxed input, it attaches the same
alphabet setting to all boxes indiscriminately. SetBoxAlphabetHRC offers greater control by allowing an application to set different alphabets
for individual boxes of a single HRC.
Example
For example, consider a boxed entry on a requisition form that expects a part
number consisting of five characters. The first two characters are uppercase
letters, the next two are numerals, and the last character can be either another
numeral or a lowercase revision code. The following example demonstrates how to
configure the HRC for this hypothetical scenario:
#define PART_LEN 5 // Five characters in entry
HRC hrcPart; // HRC for parts entry
GUIDE guidePart; // GUIDE for parts entry
ALC alcPart[PART_LEN]; // Array of ALC_ codes for entry
.
. // Initialize the GUIDE here
.
guidePart.cHorzBox = PART_LEN; // Number of boxes in entry
guidePart.cVertBox = 1; // Single row
guidePart.cyMid = 0; // No midline
iret = SetGuideHRC( hrcPart, (LPGUIDE)&guidePart, 0 );
if (iret == HRCR_OK)
{
alcPart[0] = alcPart[1] = ALC_UCALPHA; // Uppercase in boxes 1-2
alcPart[2] = alcPart[3] = ALC_NUMERIC; // Numerals in boxes 3-4
alcPart[4] = ALC_LCALPHA | ALC_NUMERIC; // Lower or numeral in box 5
// Map alphabet codes onto boxes of parts number entry
SetBoxAlphabet( hrcPart, (LPALC)&alcPart, PART_LEN );
}
See Also
GetAlphabetHRC, SetAlphabetHRC, ALC_
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