How to replace text in another application with a specified text in my application [closed]

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My question is in the title, How to replace text in another application with a specified text in my application?

If possible please help me on how to do that thing

Thanks in advance

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How to replace text in another application with a specified text in my application?

You don't, unless that other application offers some sort of API for doing this.

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If you are on windows you do what I was doing in my post(link below) and apparently you need to repaint as well sometimes...(no need for target app to have an api).

How to set text on "another" win32 application