Article ID: 142871
Article Last Modified on 1/19/2007
APPLIES TO
- Microsoft Access 95 Standard Edition
- Microsoft Access 97 Standard Edition
This article was previously published under Q142871
Moderate: Requires basic macro, coding, and interoperability skills.
SUMMARY
This article describes how to create and use a form that contains Start/Stop and Reset command buttons that use the form's Timer event to display elapsed hours, minutes, and seconds in a text box control.
This article assumes that you are familiar with Visual Basic for Applications and with creating Microsoft Access applications using the programming tools provided with Microsoft Access. For more information about Visual Basic for Applications, please refer to your version of the "Building Applications with Microsoft Access" manual.
NOTE: This article explains a technique demonstrated in the sample files, FrmSampl.exe (for Microsoft Access for Windows 95 version 7.0) and FrmSmp97.exe (for Microsoft Access 97). For information about how to obtain these sample files, please see the following articles in the Microsoft Knowledge Base:
MORE INFORMATION
The following example demonstrates how to create and use a form to track elapsed time:
- Open any database.
Create a blank form not based on any table or query and set the following properties for the form:
ScrollBars: Neither RecordSelectors: No NavigationButtons: No OnTimer: [Event Procedure] TimerInterval: 0
Add a text box to the form and set the following properties for the text box:
Name: ElapsedTime DefaultValue: "00:00:00:00" Enabled: No Locked: Yes
Add a command button to the form and set the following properties for the command button:
Name: btnStartStop Caption: Start OnClick: [Event Procedure]
Add a second command button to the form and set the following properties for the second command button:
Name: btnReset Caption: Reset OnClick: [Event Procedure]
Click Code on the View menu to display the form module. In the Declarations section, type the following:
Dim TotalElapsedMilliSec As Long Dim StartTickCount As Long Private Declare Function GetTickCount Lib "kernel32" () As Long
Type the following code for the form's OnTimer property event procedure:
Private Sub Form_Timer () Dim Hours As String Dim Minutes As String Dim Seconds As String Dim MilliSec As String Dim Msg As String Dim ElapsedMilliSec As Long ElapsedMilliSec = (GetTickCount() - StartTickCount) + _ TotalElapsedMilliSec Hours = Format((ElapsedMilliSec \ 3600000), "00") Minutes = Format((ElapsedMilliSec \ 60000) Mod 60, "00") Seconds = Format((ElapsedMilliSec \ 1000) Mod 60, "00") MilliSec = Format((ElapsedMilliSec Mod 1000) \ 10, "00") Me!ElapsedTime = Hours & ":" & Minutes & ":" & Seconds & ":" _ & MilliSec End Sub
Type the following code for the btnStartStop command button's OnClick property event procedure:
Private Sub btnStartStop_Click() If Me.TimerInterval = 0 Then StartTickCount = GetTickCount() Me.TimerInterval = 15 Me!btnStartStop.Caption = "Stop" Me!btnReset.Enabled = False Else TotalElapsedMilliSec = TotalElapsedMilliSec + _ (GetTickCount() - StartTickCount) Me.TimerInterval = 0 Me!btnStartStop.Caption = "Start" Me!btnReset.Enabled = True End If End Sub
Type the following code for the btnReset command button's OnClick property event procedure:
Private Sub btnReset_Click() TotalElapsedMilliSec = 0 Me!ElapsedTime = "00:00:00:00" End Sub
- Open the form in Form view to test the stop watch.
For more information about creating a Stopwatch Form in Microsoft Access 2.0, please see the following articles in the Microsoft Knowledge Base:
128813 ACC2: How to Create a Stopwatch Form
Keywords: kbhowto kbprogramming kbusage KB142871