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WINHLLAPI LANGUAGE REFERENCE Result code Function replaces the value of call parameter PS position with one of the following codes: Code Description 0 OIA data were copied; PS is unlocked. 1 The application is not connected to a valid PS. 2 Data string length specified was not valid. 4 OIA data were copied, but the PS is busy. 5 OIA data were copied, but the keyboard is locked. 9 A system error occurred. Example WORD HllFunc = 13; char HllDataStr[103]; /* Length of allocated data area */ WORD HllDataLgth = 103; WORD PsPos; WinHLLAPI(&HllFunc, HllDataStr, &HllDataLgth, &PsPos); Prepared by Attachmate Technical Support 43
WINHLLAPI LANGUAGE REFERENCE Function 14: Query Field Attribute This function returns the field attribute byte for the PS position. The returning parameter contains the field attribute for the specified PS position. The value of the attribute byte is C0-DF (unprotected field attributes) and E0-FF (protected attributes). A zero attribute means that no field attribute was found in the PS. Prerequisites Function 1, “Connect Presentation Space.” Applicable session parameters None. Call parameters An application program must pass the following parameters when calling this function: Function 14 Data string Data length Not applicable. Not applicable. PS position . Return parameters The PS position for which field information is wanted Attribute value Function replaces the value of call parameter Data length with the attribute byte for the specified field. If zero, the PS is unformatted and no attribute can be returned. 3270 Field attribute Bit Meaning 0-1 Both = 1, field attribute value 2 0 = unprotected; 1 = protected 3 0 = alphanumeric; 1 = numeric only 4-5 00 = normal intensity, not pen detectable 01 = normal intensity, pen detectable 10 = high intensity, pen selectable 11 = nondisplay, not pen detectable 6 Reserved Prepared by Attachmate Technical Support 44
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