cmake, main: work toward introducing alternative UI

We're going to base opentrack derivatives on the same branch. Previously
merges were a living hell. Modularizing the UI code and having
continuously-built executables will do a lot.

First opentrack variant in progress is a TrackHat device for mouse and
scrolling control for people with spine and hand/arm disabilities.

1 files changed, 20 insertions, 0 deletions

diff --git a/variant/default/main.cpp b/variant/default/main.cpp
new file mode 100644
index 00000000..80f7e495
--- /dev/null
+++ b/variant/default/main.cpp
@@ -0,0 +1,20 @@
+#include "gui/init.hpp"
+#include "gui/main-window.hpp"
+
+#if defined _WIN32
+#   include <windows.h>
+#endif
+
+int main(int argc, char** argv)
+{
+    return run_application(argc, argv, []() { return new main_window; });
+}
+
+#if defined _MSC_VER
+int CALLBACK WinMain(HINSTANCE, HINSTANCE, LPSTR, int /* nCmdShow */)
+{
+    return main(__argc, __argv);
+}
+#endif
+
+