TraceStart (Function)

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Use conditions according to the platforms
Closing the trace window

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TraceStart (Function)

In french: TraceDébut

Warning
From version 17 (78), StartTrace is kept for backward compatibility. This function has been replaced with TraceStart.

Opens the trace window or saves the trace information in a text file.

Remarks:

TraceStart has no effect if the trace window is already opened.
TraceStart is optional. The first call to Trace or to TraceBuild automatically opens the trace window.

Example

// Ouvre la fenêtre de trace
TraceStart()
...
// Ecrit dans la fenêtre de trace
Trace("Résultat du calcul : " + ResCalcul)

// Désactiver les appels à la fonction Trace
TraceStart(trDisable)
...
Trace("Résultat du calcul : " + ResCalcul) // Fonction Trace sans effet

// Enregistre les informations contenues dans 
// la fenêtre de trace dans le fichier "C:\Trace\MonFichier.txt"
TraceStart(trFile, "C:\Trace\MonFichier.txt")
...
Trace("Résultat du calcul : " + ResCalcul) 
// Aucune fenêtre de trace n'est affichée
// Cette information sera enregistrée dans le fichier "C:\Trace\MonFichier.txt"

Syntax

TraceStart([<Characteristic> [, <Trace file>]])

<Characteristic>: Optional constant

Trace characteristics:
trConsole The trace data is sent to the console.
trCreation Clears the trace file.
trDisable All the calls to Trace will be ignored.
trFile The trace window will not be displayed anymore and the information found in the trace window will be saved in the file named <Trace file>.

trTopMost The trace window will be displayed above all system windows.
trWindow
(Default value) The trace window is displayed in the upper-left corner of the screen.

trWindow + trFile The trace window will be displayed and the content of the trace window will also be saved in the file named <Trace file>.

<Trace file>: Optional character string

Name and full path of the file where the information found in the trace window will be saved. If this parameter is not specified, the trace file will be created at the root of the "C" drive and its name will have the following format "Trace_<ProjectName>.txt".

Remarks

Use conditions according to the platforms

Closing the trace window

TraceEnd is used to close the trace window.

If the trFile constant is specified, TraceEnd stops saving to the trace file.

Component: wd300vm.dll