ZeeGrid Control Message

ZGM_GETWOY


ZGM_GETWOY

An application sends a ZGM_GETWOY message to get the week of the year for the given julian date.

ZGM_GETWOY
wParam = 0;                          //not used; must be 0
lParam = (LPARAM)(int) iJulianDate;  //julian date

Parameters

iJulianDate
The value of lParam. A julian date value. Valid values are in the range of [1..3068037].

Return Values

This message returns the week of the year that the given date is in. If the julian date specified in lParam is valid, the return value will be in the range of [1..53]. If the julian date specified in lParam is not valid, this message will return 0. Weeks begin on Sunday and end on Saturday.

If the return value is 53, that day really falls in the first week of the next calendar year, but it is in the 53rd week of the year of the date in question.

Copyright © 2002-2016 by David Hillard