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138 lines
3.8 KiB
138 lines
3.8 KiB
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2013
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/Xrandr.h>
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static int
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process_randr(Display *disp, Window win, int event_base, XEvent *ev)
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{
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XRRScreenChangeNotifyEvent *rr_screen_change_notify;
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switch (ev->type - event_base)
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{
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case RRScreenChangeNotify:
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rr_screen_change_notify = (XRRScreenChangeNotifyEvent *) ev;
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printf("RRScreenChangeNotify: width %d height %d\n",
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rr_screen_change_notify->width,
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rr_screen_change_notify->height);
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break;
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}
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return 0;
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}
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int
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main(int argc, char **argv)
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{
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XEvent ev;
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Display *disp;
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Window win;
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Window root_window;
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Screen *screen;
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int screenNumber;
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int eventMask;
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int white;
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int black;
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int rr_event_base;
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int rr_error_base;
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int ver_maj;
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int ver_min;
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int cont;
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disp = XOpenDisplay(0);
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if (disp == 0)
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{
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printf("error opening display\n");
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return 1;
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}
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screenNumber = DefaultScreen(disp);
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white = WhitePixel(disp, screenNumber);
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black = BlackPixel(disp, screenNumber);
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screen = ScreenOfDisplay(disp, screenNumber);
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root_window = RootWindowOfScreen(screen);
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eventMask = StructureNotifyMask;
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XSelectInput(disp, root_window, eventMask);
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win = XCreateSimpleWindow(disp, root_window, 50, 50, 250, 250,
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0, black, white);
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XMapWindow(disp, win);
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eventMask = StructureNotifyMask | VisibilityChangeMask;
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XSelectInput(disp, win, eventMask);
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eventMask = KeyPressMask | KeyReleaseMask | ButtonPressMask |
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ButtonReleaseMask | VisibilityChangeMask |
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FocusChangeMask | StructureNotifyMask |
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PointerMotionMask | ExposureMask | PropertyChangeMask;
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XSelectInput(disp, win, eventMask);
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if (!XRRQueryExtension(disp, &rr_event_base, &rr_error_base))
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{
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printf("error randr\n");
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return 1;
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}
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XRRQueryVersion(disp, &ver_maj, &ver_min);
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printf("randr version %d %d\n", ver_maj, ver_min);
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XRRSelectInput(disp, win, RRScreenChangeNotifyMask);
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cont = 1;
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while (cont)
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{
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XNextEvent(disp, &ev);
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switch (ev.type)
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{
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case ButtonPress:
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cont = 0;
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break;
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case ClientMessage:
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printf("ClientMessage\n");
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break;
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case ConfigureNotify:
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if (ev.xconfigure.window == root_window)
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{
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printf("ConfigureNotify for root window width %d height %d\n",
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ev.xconfigure.width, ev.xconfigure.height);
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}
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break;
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default:
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if ((ev.type >= rr_event_base) &&
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(ev.type < rr_event_base + RRNumberEvents))
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{
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printf("randr\n");
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process_randr(disp, win, rr_event_base, &ev);
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}
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break;
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}
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}
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return 0;
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} |