28 lines
651 B
C++
28 lines
651 B
C++
// Demonstration of how to do callbacks
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#include <stdlib.h>
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#include <stdio.h>
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Button.H>
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void beepcb(Fl_Widget *, void *) {
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printf("\007"); fflush(stdout);
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}
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void exitcb(Fl_Widget *, void *) {
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exit(0);
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}
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int main(int argc, char ** argv) {
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Fl_Window *window = new Fl_Window(320,65);
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Fl_Button *b1 = new Fl_Button(20, 20, 80, 25, "&Beep");
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b1->callback(beepcb,0);
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/*Fl_Button *b2 =*/ new Fl_Button(120,20, 80, 25, "&no op");
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Fl_Button *b3 = new Fl_Button(220,20, 80, 25, "E&xit");
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b3->callback(exitcb,0);
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window->end();
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window->show(argc,argv);
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return Fl::run();
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}
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