Hi,
Please I would like to know when a printing is started...
Does it exist a function which can inform me when a printing is started since any application?
Please, I need your help.
Thanks in advance.

The solution depends on which operating system you are running.  

* If you are running Windows 95/98/Me then you need to subclass your application's main form and intercept any WM_SPOOLERSTATUS messages sent to it.

* If you are running Windows NT/2000/XP you need to create a waitable object using FindFirstPrinterChangeNotification then WaitForSingleObject and FindnextPrinterChangeNotification API calls.

In both cases you can read the print queue for your printer as per the code in this article

HTH,
  Duncan

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