Even more work on the Windows constant generator. There are still some edge cases involving variables that I need to resolve, and I still need to write the code that actually runs the generated program.

experiments/windowsconstgen.go

@@ -8,6 +8,7 @@ import (
 	"go/token"
 	"go/ast"
 	"go/parser"
+	"sort"
 )
 
 func getPackage(path string) (pkg *ast.Package) {
@@ -68,6 +69,11 @@ func gatherNames(pkg *ast.Package) {
 	}
 }
 
+func preamble(pkg string) string {
+	return "// autogenerated by windowsconstgen; do not edit\n" +
+		"package " + pkg + "\n"
+}
+
 func main() {
 	if len(os.Args) != 2 {
 		panic("usage: " + os.Args[0] + " path")
@@ -84,7 +90,25 @@ func main() {
 		panic(s)
 	}
 
+	// keep sorted for git
+	consts := make([]string, 0, len(known))
+
 	for ident, kind := range known {
-		fmt.Printf("%-30s %s\n", ident, kind)
+		if kind == "const" || kind == "var" {
+			consts = append(consts, ident)
 		}
+	}
+	sort.Strings(consts)
+
+	fmt.Printf("%s" +
+		"import \"fmt\"\n" +
+		"// #include <windows.h>\n" +
+		"import \"C\"\n" +
+		"func main() {\n" +
+		"	fmt.Println(%q)\n",
+		preamble("main"), preamble("ui"))
+	for _, ident := range consts {
+		fmt.Printf("	fmt.Println(\"const %s =\", C.%s)\n", ident, ident[1:])
+	}
+	fmt.Printf("}\n")
 }