More constant character pointers

.gitignore

@@ -38,5 +38,6 @@ test/input-dialog
 test/choice
 test/mandelbrot
 test/keyboard
+test/mouse
 test/timer
 test/ui

src/fvterm.cpp

@@ -387,7 +387,7 @@ int FVTerm::print (term_area* area, const std::string& s)
 }
 
 //----------------------------------------------------------------------
-int FVTerm::print (FString& s)
+int FVTerm::print (const FString& s)
 {
   assert ( ! s.isNull() );
   term_area* area = getPrintArea();

src/fvterm.h

@@ -263,7 +263,7 @@ class FVTerm : public FObject, public FTerm
    int                 print (term_area*, const char*);
    int                 print (const std::string&);
    int                 print (term_area*, const std::string&);
-   int                 print (FString&);
+   int                 print (const FString&);
    int                 print (term_area*, const FString&);
    int                 print (int);
    int                 print (term_area*, int);

test/mouse.cpp

@@ -0,0 +1,21 @@
+// File: mouse.cpp
+
+#include "fapp.h"
+#include "fdialog.h"
+
+//----------------------------------------------------------------------
+//                               main part
+//----------------------------------------------------------------------
+int main (int argc, char* argv[])
+{
+  // Create the application object
+  FApplication app(argc, argv);
+
+  // Create a simple dialog box
+  FDialog mouse_draw(&app);
+  mouse_draw.setGeometry (12, 4, 60, 18);
+
+  app.setMainWidget(&mouse_draw);
+  mouse_draw.show();
+  return app.exec();
+}