capture-screen-macos-csharp

This is an example of creating a screenshot of the screen in macOS using C# in .NET 7.0. I Couldn't find any fully working recent example of this online, so I thought I'd share it.

The example include a simple console application that takes a screenshot and saves it to a file.

NOTE: this is by no means a production ready example, nor is it necessarily the best way to do it, This is just something that worked for me after looking for a solution for a while.

Development

Prerequisites

• .NET 7.0 SDK
• macOS 11.0 SDK
• Xcode 13.0

Build

First time, make sure to run the following command:

dotnet workload install macos-11.0

Then, to build the project, run the following command:

dotnet build

Running

To run the example, run the following command:

dotnet run -- <mode> <outputPath>

Where <mode> is either active or primary and <outputPath> is the path to the output file. This is an example of a screenshot of the screen or window depending on the captureMode parameter.

• active - capture the active window.
• primary - capture the primary screen.