GetCalendarInfoA function (winnls.h)
Retrieves information about a calendar for a locale specified by identifier.
int GetCalendarInfoA( LCID Locale, CALID Calendar, CALTYPE CalType, LPSTR lpCalData, int cchData, LPDWORD lpValue );
Type of information to retrieve. For more information, see Calendar Type Information.
For CAL_NOUSEROVERRIDE, the function ignores any value set by SetCalendarInfo and uses the database settings for the current system default locale. This type is relevant only in the combination CAL_NOUSEROVERRIDE | CAL_ITWODIGITYEARMAX. CAL_ITWODIGITYEARMAX is the only value that can be set by SetCalendarInfo.
Pointer to a buffer in which this function retrieves the requested data as a string. If CAL_RETURN_NUMBER is specified in CalType, this parameter must retrieve NULL.
Size, in characters, of the lpCalData buffer. The application can set this parameter to 0 to return the required size for the calendar data buffer. In this case, the lpCalData parameter is not used. If CAL_RETURN_NUMBER is specified for CalType, the value of cchData must be 0.
Pointer to a variable that receives the requested data as a number. If CAL_RETURN_NUMBER is specified in CalType, then lpValue must not be NULL. If CAL_RETURN_NUMBER is not specified in CalType, then lpValue must be NULL.
Returns the number of characters retrieved in the lpCalData buffer, with cchData set to a nonzero value, if successful. If the function succeeds, cchData is set to 0, and CAL_RETURN_NUMBER is not specified, the return value is the size of the buffer required to hold the calendar information. If the function succeeds, cchData is set 0, and CAL_RETURN_NUMBER is specified, the return value is the size of the value retrieved in lpValue, that is, 2 for the Unicode version of the function or 4 for the ANSI version.
This function returns 0 if it does not succeed. To get extended error information, the application can call GetLastError, which can return one of the following error codes:
- ERROR_INSUFFICIENT_BUFFER. A supplied buffer size was not large enough, or it was incorrectly set to NULL.
- ERROR_INVALID_FLAGS. The values supplied for flags were not valid.
- ERROR_INVALID_PARAMETER. Any of the parameter values was invalid.
The winnls.h header defines GetCalendarInfo as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
|Minimum supported client||Windows 2000 Professional [desktop apps only]|
|Minimum supported server||Windows 2000 Server [desktop apps only]|
|Header||winnls.h (include Windows.h)|