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Tip of the Day
Language: Visual Basic
Expertise: Beginner
Aug 4, 1997

Please Stop Printing!

Sometimes I want to print data from a recordset to a report, reading and printing each record. However, it's hard to interrupt that process before it sends all recordsets to the printer queue. Use a Cancel button associated to a flag. Besides the button that starts the printing, create another one named Cancel. You can also set its Cancel property to True, so the user can stop printing by pressing the Esc key. Add a variable in a module:
 
Dim CancelNow As Integer
Put this code in the Click event of the Cancel button:
 
Sub cCancel_Click ()
        CancelNow = -1
        DoEvents
End Sub
You might even do without the button and simply intercept the Escape key. In this case, set the form's KeyPreview property to True and insert this code:
 
Sub Form_KeyPress (KeyAscii As Integer)
        'if user presses ESC
        If KeyAscii = (27) Then
                CancelNow = -1
                DoEvents
        End If
End sub
Finally, add a test for the flag inside the printing loop:
 
'... some code...
'printing a database recordset
Do While Not MyRecordSet.EOF
        Printer.Print MyRecordSet!SomeRecord
        MyRecordSet.MoveNext
        DoEvents
        'stop if Cancel button was clicked
        If CancelNow then Exit Do
Loop
Printer.EndDoc
'... more code...
Carlos Cardoso
 
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