How to deal with warning 501

[Raju]

Hi Friends,

I'm getting below warning message. Please help me to correct it.

Thanks

[Tomasz]

You don't need to "deal" with that. Warning is not an error.
Read this:

Basics: Error, warning, notice

To help people find the issues in their code AmiBroker displays three kinds of messages to the users, that some people don't differentiate and/or understand. These are: Errors Warnings Notices There is fundamental difference between them. They differ in "strength". An ERROR is a show-stopper. Error means that your code is wrong and requires fix. Like missing brace, incorrect argument types and so on. The formula will not run without fixing errors. A WARNING describes either minor coding mis…

Also, post FORMULA so it can be copy-pasted instead of forcing people to re-type the code. It is your homework to provide formula. Please follow this advice: How to ask a good question

If you really need to "deal" with it you can wrap the assignment in braces and apply comparison:
for( n = 0; ( id = GuiGetEvent( n, 0 ) ) != 0; n++ )

[Raju]

Hi Tomasz,

Thanks for your help and quick response.
Sure I will follow your advice and paste the code.
Sorry for the inconvenience.