How to read Text From an Application Window

I am trying to read some text lines from an application is there any python module available for it My requirements are open an application on windows - click start to collect logs from an connected device & read logs .

For Opening & Starting logs I used PyWinauto & was able to achieve till starting & stopping logs but to read logs I am totally confused .Kindly Suggest a way for approaching this

One way I could think is of storing the logs on local system & reading it , For that

Ctr+S

is required to be pressed & file name to be given by user ..it would be helpful if someone can suggest a way to give a file name automatically & then open & read its content

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