It appears that Microsoft XP provides 2 controls via its Common Controls Library - C:\WIN98\SYSTEM\MSComCt2.OCX - DateTimePicker and MonthCalendar.

That file missing in Windows Vista.

• Place a text box on the form
• Format it to display dates
• Enable the display of the Date picker

• In the Toolbox, click the More Controls icon and select the control from the list. The associated filenames are not listed.
• From the menu, select Insert / ActiveX Control.... This list is easier to use and the associated filenames are listed ... except for controls implemented via COMCTL32.DLL (and perhaps a few others).

MonthView - places a single month on the form

Select - Microsoft MonthView Control
c:\win98\system\MSComCt2.OCX

DTPicker - a ComboBox Calendar control

Select - Microsoft Date and Time Picker Control, Version x.x
c:\win98\system\MSComCt2.OCX

Calendar - another single month calendar

Select - Calendar Control x.x
c:\win98\system\MSCAL.OCX

Though the default parameters are obviously different, the Microsoft MonthView and DTPicker controls appear to be identical to the Delphi TMonthCalendar and TDateTimePicker respectively.

Of course, nothing is quite as simple as this, I suggest that you read my MS Access - Calendar Example before trying to do this on your own.

DateTimePicker

This attaches a calendar to a combo box - just click the down arrow to see the calendar.

MonthCalendar

This displays a calendar on the form.

In order for the user to set both the date and time requires 2 DateTimePicker's. On one of them, set the kind property to dtkTime (the default is dtkDate).

var
 dt : string;
begin
  dt := DateToStr(DateTimePicker1.Date) + ' ' + TimeToStr(DateTimePicker2.Time);

URL: http:// cpcug.org / user / clemenzi / technical / Databases / Calendars_n_Dates.html