How Can I Simulate Mouse Clicks in C# Using Windows APIs?

Programmatic Mouse Click Simulation in C#

This article demonstrates how to simulate mouse clicks within C# applications, a crucial technique for automating tests and controlling user interfaces. We achieve this using the Windows API via interop.

The code utilizes the user32.dll library to control the cursor and generate mouse events. An enumeration (MouseEventFlags) defines various mouse actions (left-click, right-click, movement).

The SetCursorPosition function positions the cursor, while GetCursorPosition retrieves its current location. The core functionality resides in the MouseEvent function, which uses the mouse_event API to simulate mouse actions at the cursor's current position based on the MouseEventFlags value. A MousePoint struct simplifies coordinate handling.

Integrating this code into your C# project enables programmatic mouse click simulation, enhancing UI control and facilitating automated testing.

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