Values for the caliFirstDay field on SFTMASK_CONTROL, defining the first day of the week shown by the popup calendar (see Popup Calendar).
| SFTMASK_FIRSTDAYDEFAULT (0) | The first day of the week defined by the user's locale. Default. |
| SFTMASK_FIRSTDAYMONDAY (1) | Monday |
| SFTMASK_FIRSTDAYTUESDAY (2) | Tuesday |
| SFTMASK_FIRSTDAYWEDNESDAY (3) | Wednesday |
| SFTMASK_FIRSTDAYTHURSDAY (4) | Thursday |
| SFTMASK_FIRSTDAYFRIDAY (5) | Friday |
| SFTMASK_FIRSTDAYSATURDAY (6) | Saturday |
| SFTMASK_FIRSTDAYSUNDAY (7) | Sunday |
See Also Popup Calendar | SFTMASK_CONTROL
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