diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/howto-remap-numpad-keyboard-keys.cxx | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/examples/howto-remap-numpad-keyboard-keys.cxx b/examples/howto-remap-numpad-keyboard-keys.cxx index 20639224d..c424e7d88 100644 --- a/examples/howto-remap-numpad-keyboard-keys.cxx +++ b/examples/howto-remap-numpad-keyboard-keys.cxx @@ -1,4 +1,19 @@ -// vim: autoindent tabstop=8 shiftwidth=2 expandtab softtabstop=2 +// +// Numeric keypad demo program for the Fast Light Tool Kit (FLTK). +// +// Copyright 1998-2024 by Bill Spitzak and others. +// +// This library is free software. Distribution and use rights are outlined in +// the file "COPYING" which should have been included with this file. If this +// file is missing or damaged, see the license at: +// +// https://www.fltk.org/COPYING.php +// +// Please see the following page on how to report bugs and issues: +// +// https://www.fltk.org/bugs.php +// + // // Demonstrate keyboard remapping: Force number pad to type numbers even if NumLock off // @@ -21,46 +36,33 @@ // // This demo based on fltk.general thread entitled "keyboard mapping", Aug 2019. // -// * * * -// -// Copyright 1998-2017 by Bill Spitzak and others. -// -// This library is free software. Distribution and use rights are outlined in -// the file "COPYING" which should have been included with this file. If this -// file is missing or damaged, see the license at: -// -// https://www.fltk.org/COPYING.php -// -// Please see the following page on how to report bugs and issues: -// -// https://www.fltk.org/bugs.php -// #include <FL/Fl.H> #include <FL/Fl_Double_Window.H> #include <FL/Fl_Input.H> #include <FL/Fl_Check_Button.H> -// Fl_Check_Button *G_checkbut = 0; // Global event handler: FLTK calls this after event translation. It's up to us // to call Fl::handle_(e,w) to actually deliver the event to the widgets. If we // don't and just return, the event will be dropped. See docs for more. -// + int MyHandler(int e, Fl_Window *w) { // Remapping disabled? Early exit.. - if ( G_checkbut->value() == 0 ) return Fl::handle_(e, w); + if (G_checkbut->value() == 0) + return Fl::handle_(e, w); // Keyboard key pressed? See if we should remap.. - if ( e == FL_KEYDOWN || e == FL_KEYUP) { + if (e == FL_KEYDOWN || e == FL_KEYUP) { // Get FLTK keycode /before/ NumLock state is applied (see above DESCRIPTION) int keycode = Fl::event_original_key(); // get keycode before FLTK applies NumLock - if ( keycode >= FL_KP && keycode <= FL_KP_Last ) { // keypad key pressed? + if (keycode >= FL_KP && keycode <= FL_KP_Last) { // keypad key pressed? static char buf[2]; // static: we don't want buffer to go out of scope buf[0] = char(keycode - FL_KP); // convert keypad keycode -> ascii buf[1] = 0; // terminate string (for safety) Fl::e_text = buf; // point to our static buffer Fl::e_length = 1; // only first char relevant + Fl::e_keysym = keycode; // note: some input widgets require this too } } return Fl::handle_(e, w); // let FLTK deliver event to widgets @@ -71,14 +73,14 @@ int main(int argc, char *argv[]) { win->begin(); { new Fl_Input(100, 10, 200, 25, "Input:"); - G_checkbut = new Fl_Check_Button(100,40,280,25," Force numeric keypad to type numbers"); + G_checkbut = new Fl_Check_Button(100, 40, 280, 25, "Force numeric keypad to type numbers"); G_checkbut->labelsize(12); G_checkbut->set(); } win->end(); win->resizable(win); win->show(argc, argv); - win->tooltip("Turn NumLock OFF, then type into Input:\nusing numeric keypadt to test translation"); + win->tooltip("Turn NumLock OFF, then type into Input:\nusing numeric keypad to test translation"); // Set up our event handler to manage events Fl::event_dispatch(MyHandler); return(Fl::run()); |