?? menu.c
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#include <X11/Intrinsic.h>#include <X11/StringDefs.h>#include <X11/Xaw/MenuButton.h>#include <X11/Xaw/SimpleMenu.h>#include <X11/Xaw/Sme.h>#include <X11/Xaw/SmeBSB.h>XtAppContext application_context;void do_menu_selection(Widget item_selected, XtPointer unused1, XtPointer unused2) { char * name = XtName(item_selected); printf("Menu item `%s' has been selected.\n", name); if (strcmp(name, "Exit program") == 0) { XtDestroyApplicationContext(application_context); exit(0); }}String fallback_resources[] = { "*menuButton.label: This is a menubutton label", "*menu.label: Sample menu label", NULL,};int main(int argc, char **argv) { int i; Widget top_level, menu_button, menu, menu_element; char * menu_item_names[] = { "Menu item1", "Menu item2", "Menu item3", "Menu item4", "Exit program", }; top_level = XtVaAppInitialize(&application_context, "testmenu", NULL, 0, &argc, argv, fallback_resources, NULL); menu_button = XtCreateManagedWidget("menuButton", menuButtonWidgetClass, top_level, NULL, 0); menu = XtCreatePopupShell("menu", simpleMenuWidgetClass, menu_button, NULL, 0); for (i = 0; i < (int)XtNumber(menu_item_names) ; i++) { menu_element = XtCreateManagedWidget(menu_item_names[i], smeBSBObjectClass, menu, NULL, 0); XtAddCallback(menu_element, XtNcallback, do_menu_selection, NULL); } XtRealizeWidget(top_level); XtAppMainLoop(application_context); return 0;}
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