如何使用 C 模拟 Windows 和 Linux 的单击？

Question

What libraries should I use?

What documentation am I supposed to read?

Maybe someone could drop a code example?

Answer 1

On Windows, if you want to simulate a mouse click inside a specific window, the relevant window messages are the following (link to documentation included):

WM_LBUTTONDOWN

WM_LBUTTONUP

WM_LBUTTONDBLCLK (on second click, this message is sent instead of WM_LBUTTONDOWN)

To simulate a mouse click, you can send a window any of these window messages, using the PostMessage() function.

For this function, you require a window handle (HWND) for the target window. This can be obtained for example using the EnumWindows() or FindWindow() function.

However, if you want to simulate a mouse click on the screen instead of inside a specific window, then you will have to use the SendInput() function. For further details, see this Stack Overflow question .

Also, be aware that since Windows Vista, for security reasons, it is not possible anymore to send processes with administrative privileges messages from non-privileged processes.

The above information only applies to Windows. Unfortunately, I can't help you with Linux, but you may find the solution in this Stack Overflow question .