1.2 Using the FLI to get the cursor position

Note: The rest of the examples in this chapter only work in LispWorks for Windows.

The following example shows how to use the FLI to call a C function in a Win32 library. The function we are going to call returns the screen position of the mouse pointer, or cursor. The example consists of three stages: setting up the correct data types to pass and receive the data, defining and calling a FLI function to call the Win32 function, and collecting the values returned by the Win32 function to find where the cursor is.

1.2.1 Defining FLI types

1.2.2 Defining a FLI function

1.2.3 Accessing the results