How to simulate the asynchronous scene of GetDefaultPrinter?

Question

reference:
https://learn.microsoft.com/en-us/windows/win32/printdocs/getdefaultprinter

This is a blocking or synchronous function and might not return immediately. How quickly this function returns depends on run-time factors such as network status, print server configuration, and printer driver implementation factors that are difficult to predict when writing an application. Calling this function from a thread that manages interaction with the user interface could make the application appear to be unresponsive.

so how should i simulate the asynchronous scene of GetDefaultPrinter?

i try many times in my pc , it always return immediately!

Answer 1

Hi,

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Best regards,
Leon