This class uses a high-resolution multi-media timer to track elapsed time. This class is useful for timing user operations, or for bench-marking your applications. Because it uses the Windows multimedia timer, it uses much higher resolution than the built-in VBA/VB6 Timer function.
|(Declarations)||Declarations||Declarations and private variables for the CMMTimer class.|
|ElapsedTime||Property||Get the current Elapsed Time value, scaled by the value of the ScaleFactor property.|
|ScaleFactor||Property||Get the current scaling factor. A value of 1000 returns results in portions of seconds. A value of 60000 returns results in portions of minutes. A value of 1 will result in no scaling, so the value will be returned in milliseconds.|
|Class_Initialize||Initialize||Set initial values to defaults which may be overridden with property settings.|
|ResumeTimer||Method||Resumes a timing operation which was paused with the StopTimer method. If the timer was not started already, it is started automatically.|
|StartTimer||Method||Starts a timing operation. The value of ElapsedTime is reset before beginning.|
|StopTimer||Method||Stops the timer. Current elapsed time value is not reset.|
|GetCurrentElapsedTime||Private||Get the elapsed time since the timer was last started.|
' Example of the CMMTimer class ' ' To try this example, do the following: ' 1. Create a new form ' 2. Add the following controls to the form: ' 3. Add a command button called 'cmdStart' ' 4. Add a command button called 'cmdStop' ' 5. Add a command button called 'cmdResume' ' 6. Paste all the code from this example to the new form's module ' 7. Run the form, test the Stop Watch ' Declarations section code Private mMMTimer As CMMTimer Private Sub cmdStart_Click() Set mMMTimer = New CMMTimer ' Return results in fractions of seconds mMMTimer.ScaleFactor = 1000 Debug.Print "Started: " & Now() mMMTimer.StartTimer End Sub Private Sub cmdStop_Click() mMMTimer.StopTimer Debug.Print "Elapsed: " & mMMTimer.ElapsedTime End Sub Private Sub cmdResume_Click() Debug.Print "Resumed: " & Now() mMMTimer.ResumeTimer End Sub Private Sub Form_Load() Me.cmdStart.Caption = "Start" Me.cmdStop.Caption = "Stop" Me.cmdResume.Caption = "Resume" End Sub
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