Coffee Machine scenario SECTION 3 Advanced Tutorial
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6. Add a button to manually restart logging using the command
"StopLogging("Dataset1")"
7. Add a 'Close' button with an animation to close the page.
8. Open Main page and add an animation to the "Data Logging" button to
display the new page called Datalog.
3-1-11 File Handling
We'll add a file handling page allowing the selected drink to be written to a file
on disk. The file format will look like this:
03:42:52 10/30/2002 - User Selection: 14
03:44:28 10/30/2002 - User Selection: 22
03:53:28 10/31/2002 - User Selection: 16
First add the points required by this step.
Then write the subroutine to do the work. This subroutine should be called
every time a drink is made.
1, 2, 3… 1. At the Project level, add a subroutine script called WriteToDisk
2. Add an integer parameter called sel.
aux_text2 = ValueToText( selection )
aux_text = $Time + " "+ $Date+ " - User selection: "+aux_text2
ret = WriteMessage("selections.txt", -1, aux_text, true)
3. Add script code to Make the Drink script to call the new subroutine.
Add the detail to the File Handling page:
1, 2, 3… 1. Make a new page with the following properties:
Page Title = File
Border Style = THICK
Display Mode = POPUP
Top = 0
Left = 505
Height = 582
Width = 295
2. Use the Workspace to remove the Display On Run option from the popup
menu.
Point name Point type Default
Value
Description (optional)
aux_text2 Text Temporary text area for
conversions
fileindex Integer Index to current position in
text file
filename Text Name of text file to read
from.
ret Integer General purpose 'return'
value from various script
functions
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