Xaw

/*  * Компилируется строкой cc -o simple simple.c -lXaw -lXt -lX11  */ #include <X11/Intrinsic.h> #include <X11/StringDefs.h> #include <X11/Shell.h> #include <X11/Xaw/Form.h> #include <X11/Xaw/Command.h> #include <stdlib.h>  XtAppContext app_context;  void quit_proc(Widget w, XtPointer client_data, XtPointer call_data) {     XtDestroyApplicationContext(app_context);     exit(0); }  int main(int argc, char **argv) {     Widget toplevel, form, w;      toplevel = XtOpenApplication(&app_context, "XFirst", NULL, 0, &argc, 				 argv, NULL, applicationShellWidgetClass, 				 NULL, 0);     form = 	XtVaCreateManagedWidget("form", formWidgetClass, toplevel, NULL);     w = XtVaCreateManagedWidget("quit_button", commandWidgetClass, form, 				XtNlabel, "Quit", NULL);     XtAddCallback(w, XtNcallback, quit_proc, NULL);     XtRealizeWidget(toplevel);     XtAppMainLoop(app_context); }