Initial project import

tools/v/vlib/os/open_uri_windows.c.v

@@ -0,0 +1,23 @@
+module os
+
+import dl
+
+type ShellExecuteWin = fn (voidptr, &u16, &u16, &u16, &u16, int)
+
+// open_uri opens a given uri.
+pub fn open_uri(uri string) ! {
+	mut vopen_uri_cmd := getenv('VOPEN_URI_CMD')
+	if vopen_uri_cmd != '' {
+		result := execute('${vopen_uri_cmd} "${uri}"')
+		if result.exit_code != 0 {
+			return error('unable to open url: ${result.output}')
+		}
+		return
+	}
+	handle := dl.open_opt('shell32', dl.rtld_now)!
+	// https://docs.microsoft.com/en-us/windows/win32/api/shellapi/nf-shellapi-shellexecutew
+	func := ShellExecuteWin(dl.sym_opt(handle, 'ShellExecuteW')!)
+	// 1 is SW_SHOWNORMAL, but it avoids including winuser.h, and in turn windows.h, which conflicts with raylib
+	func(C.NULL, 'open'.to_wide(), uri.to_wide(), C.NULL, C.NULL, 1)
+	dl.close(handle)
+}