Open a existing process and change the text box value

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process

text

Hi,

I have an 2 different applications. We will keep it as App1 and App2.
App2 can be opened directly as well as from App1.
If App2 is already opened directly.When I try to open the App2 from App1 it should open the existing instance without creating a new instance and update a text box value where a text box modifier is set as public.

if (System.Diagnostics.Process.GetProcessesByName("App2").Count() >= 1)
{
// How to proceed further set foreground already opened instance and update the public text box in App2.
}


Thanks.

Regards,
N.ShanthaKumar.