Add 80:00:00 with 10:00:00 with vb6

[samvb]

With vb6,

how can i add the above time to return 90:00:00

something like this:

http://www.unitarium.com/time-calculator

[Guido Geurs]

Begin:
Add to the form the textboxes with index=0
Textboxes for : Operation(0) , Hours(0) , Min(0) , ...

The best way is to go in 3 steps:

1- Update display on clicking the Operation command (+, -, ..):
Add textboxes with "Load" from the original ones (Operation(0) , Hours(0),...) with index= ubound + 1
set the Top of the new textboxes in function of the index like:

   Load Text1(Text1.UBound + 1)
   Text1(Text1.UBound).Top = Text1(Text1.UBound - 1).Top + 600
   Text1(Text1.UBound).Visible = True

2- calculate in function of the Operation command.
!!! calculate with the lowest unit (sec, milsec, ...)=
If the lowest unit= sec. => set hours to sec, set min to sec,... make the operations for index (of one component like: TextboxHours) from Lbound to Ubound.

for i= textHours.lbound to textHours.ubound
   Select case Operation(i).caption
   case "+": Result= Result + (textHours(i)*3600) + (textMin(i)*60) +...
   case "-": Result=Result - ...
   end select
next

3- Adapt the display in function of the result=
hours= int(result/3600)
minutes = int((result - hours )/60)
...