aus dem 9. Teil in die RISC OS C-Programmierung: Symbole und Ereignisbehandlung: KlickeMich!.
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/* Programm wird mit einem Klick auf die Schaltfläche beendet program is ending with a mouse click on the button Alexander Ausserstorfer, 13.01.2017 */ #include "oslib/wimp.h" #include "oslib/hourglass.h" #include <stdbool.h> #include <stdlib.h> #include <string.h> #include <stdio.h> int main() { /* melde Aufgabe beim Betriebssystem an report our task to WIMP */ wimp_version_no version_out; wimp_t task_handle; task_handle=wimp_initialise(310, "KlickeMich!", NULL, &version_out); /* Lege Datenblock für Fenster + Symbol an install data block for window and icon */ wimp_window *window; window = malloc(sizeof(wimp_window) + 1*sizeof(wimp_icon)); window->visible.x0 = 500; window->visible.y0 = 200; window->visible.x1 = 300; window->visible.y1 = 310; window->xscroll = 0; window->yscroll = 0; window->next = wimp_TOP; window->flags = wimp_WINDOW_MOVEABLE | wimp_WINDOW_AUTO_REDRAW | wimp_WINDOW_BACK_ICON | wimp_WINDOW_CLOSE_ICON | wimp_WINDOW_TITLE_ICON | wimp_WINDOW_NEW_FORMAT; window->title_fg = wimp_COLOUR_BLACK; window->title_bg = wimp_COLOUR_LIGHT_GREY; window->work_fg = wimp_COLOUR_BLACK; window->work_bg = wimp_COLOUR_VERY_LIGHT_GREY; window->scroll_outer = wimp_COLOUR_MID_LIGHT_GREY; window->scroll_inner = wimp_COLOUR_VERY_LIGHT_GREY; window->highlight_bg = wimp_COLOUR_CREAM; window->extent.x0 = 0; window->extent.y0 = -1000; window->extent.x1 = 1000; window->extent.y1 = 0; window->extra_flags = 0; window->title_flags = wimp_ICON_TEXT | wimp_ICON_BORDER | wimp_ICON_HCENTRED | wimp_ICON_VCENTRED; window->work_flags = wimp_BUTTON_CLICK << wimp_ICON_BUTTON_TYPE_SHIFT; window->sprite_area = NULL; strncpy (window->title_data.text, "KlickeMich!", 12); window->icon_count = 1; window->xmin = 0; window->ymin = 0; window->icons[0].extent.x0 = 25; window->icons[0].extent.y0 = -90; window->icons[0].extent.x1 = 250; window->icons[0].extent.y1 = -20; window->icons[0].flags = wimp_ICON_TEXT | wimp_ICON_INDIRECTED | wimp_ICON_HCENTRED | wimp_COLOUR_BLACK << wimp_ICON_FG_COLOUR_SHIFT | wimp_ICON_BORDER |wimp_BUTTON_RELEASE << wimp_ICON_BUTTON_TYPE_SHIFT; char pollspeed[12] = "Beenden"; window->icons[0].data.indirected_text.text = pollspeed; window->icons[0].data.indirected_text.validation = "R6,3"; window->icons[0].data.indirected_text.size = 12; /* Erzeuge Fenster create window */ wimp_block block; block.open.w = wimp_create_window (window); block.open.visible.x0 = window->visible.x0; block.open.visible.y0 = window->visible.y0; block.open.visible.x1 = window->visible.x1; block.open.visible.y1 = window->visible.y1; block.open.xscroll = window->xscroll; block.open.yscroll = window->yscroll; block.open.next = window->next; /* mache Fenster sichtbar opens window */ wimp_open_window (&(block.open)); /* Variablen für's Pollen variables for polling */ wimp_event_no event; wimp_poll_flags mask = wimp_MASK_NULL | wimp_QUEUE_REDRAW | wimp_MASK_LEAVING | wimp_MASK_ENTERING | wimp_QUEUE_KEY | wimp_QUEUE_KEY | wimp_MASK_LOSE | wimp_MASK_GAIN | wimp_MASK_POLLWORD | wimp_MASK_ICON_LEAVING | wimp_MASK_ICON_ENTERING; osbool quit_pending = FALSE; wimp_block block2; /* Hauptschleife main loop */ while (!quit_pending) { /* Ereignisbehandler event handler */ event = wimp_poll(mask, &block2, NULL); switch (event) { case wimp_OPEN_WINDOW_REQUEST: wimp_open_window(&(block2.open)); break; case wimp_CLOSE_WINDOW_REQUEST: wimp_close_window(block2.close.w); quit_pending = true; break; case wimp_MOUSE_CLICK: if (block2.pointer.i == 0) quit_pending = true; break; case wimp_USER_MESSAGE_RECORDED: if (block2.message.action == message_QUIT) { quit_pending = true; } break; } } /* beende Aufgabe quit task */ wimp_close_down(task_handle); return 0; }