TCustomCalendar.LMChanged procedure

Declaration

procedure LMChanged(var Message: TLMessage); message

Arguments

Description

LMChanged ensures that event handlers are signalled (when assigned) when the value in DateTime is updated for the calendar control is changed. It retrieves the new date value from the widgetset class instance, and compares it to the existing value in DateTime. DecodeDateTime is used to get the year, month, and day component values compared in the method. The new value for DateTime is stored prior to comparing the values.

When the date or one of its component values has been changed, the corresponding event handlers are signalled (when assigned) in the following order:

• OnYearChanged
• OnMonthChanged
• OnDayChanged
• OnChange

An application can assign object procedures to the event handlers to respond to the change notifications.

See also

• DateTime
• OnYearChanged
• OnMonthChanged
• OnDayChanged
• OnChange