Capture the laptop screen and transfer over the local network

Need a utility (program) capable of capturing the laptop screen (with the ability to choose the capture of the main screen or the second screen – when connected to the laptop video projector), broadcasting captured image over the local network, the ability to view it through the browser. A similar utility has already been developed – पाठ छिपा हुआ, but it does not have the option of choosing the main / second screen. We need a similar one, but with the opportunity.