This program controls the mouse using pitch and yaw data from the Natural Point TrackIR5. Rotational coordinates are mapped to the Windows virtual desktop in an absolute fashion, so the mouse always moves to where the user is looking.
The user picks comfortable pitch and yaw boundaries for each active monitor. The program poles Windows for the virtual desktop coordinates of each monitor and does some translation (see the section on the virtual desktop if you're interested). The rotational boundaries are mapped to each monitor's window in the virtual desktop. Every loop iteration, a simple linear interpolation between monitor edges determines the mouse position.
FreePIE is an excellent tool that I started with. It is the first piece of software I used to get going quickly. Unfortunately, it does not support the Win32 call, 'SendInput'. This is necessary for any pen enabled applications and some UWP applications to register drawing. These applications use the Windows messaging system to get updates about mouse movement within the application window. I believe the common FreePIE function for moving the mouse, SetCursorPosition, does not cause the appropriate Windows messages is to be sent to the target program. Thus I can't markups PDFs with some programs.
...TODO explain Microsoft's quirky virtual desktop and the need to translate coordinates... Link: (https://docs.microsoft.com/en-us/windows/win32/gdi/the-virtual-screen)
Note that WxWidgets is the only external library not included in this source tree. I am using Visual Studio 2022. Language Standard: at least C++20
Required 3rd Party Libraries:
- WxWidgets 3.2.2 (must get & build binaries for static linking)
- spdlog 1.9.2 (included in folder '/3rd-party/' as header only library)
- toml11 (included in folder '/3rd-party/' as header only library)
Python 3 & py launcher located on path (only for 'DebugAndLaunch' build step)
See (https://github.com/wxWidgets/wxWidgets).
Windows specific install instructions (https://github.com/wxWidgets/wxWidgets/blob/master/docs/msw/install.md).
I made an environment variable called 'WXWIN' that specifies the location of the wxWidgets project folder. I use this variable to specify additional include & library directories to bring in wxWidgets.