ｘ11实现显示桌面

兼容适配 软件兼容
1 
#include <X11/Xatom.h>
#include <X11/Xlib.h>

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
Display *d;
Window root;
Atom _NET_SHOWING_DESKTOP, actual_type;
int actual_format, error, current;
unsigned long nitems, after;
unsigned char *data = NULL;

/* Open the default display */
if(!(d = XOpenDisplay(NULL))) {
fprintf(stderr, "Cannot open display \"%s\".\n", XDisplayName(NULL));
exit(EXIT_FAILURE);
}

/* This is the default root window */
root = DefaultRootWindow(d);

/* find the Atom for _NET_SHOWING_DESKTOP */
_NET_SHOWING_DESKTOP = XInternAtom(d, "_NET_SHOWING_DESKTOP", False);

/* Obtain the current state of _NET_SHOWING_DESKTOP on the default root window */
error = XGetWindowProperty(d, root, _NET_SHOWING_DESKTOP, 0, 1, False, XA_CARDINAL,
&actual_type, &actual_format, &nitems, &after, &data);
if(error != Success) {
fprintf(stderr, "Received error %d!\n", error);
XCloseDisplay(d);
exit(EXIT_FAILURE);
}

/* The current state should be in data[0] */
if(data) {
current = data[0];
XFree(data);
data = NULL;
}

/* If nitems is 0, forget about data[0] and assume that current should be False */
if(!nitems) {
fprintf(stderr, "Unexpected result.\n");
fprintf(stderr, "Assuming unshown desktop!\n");
current = False;
}

/* Initialize Xevent struct */
XEvent xev;
xev.xclient.type = ClientMessage;
xev.xclient.send_event = True;
xev.xclient.display = d;
xev.xclient.window = root;
xev.xclient.message_type = _NET_SHOWING_DESKTOP;
xev.xclient.format = 32;
xev.xclient.data.l[0] = value;

/* Send the event to the window manager */
XSendEvent(d, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);

/* Output the new state ("visible" or "hidden") so the calling program
* can react accordingly.
*/
if(argc > 1 && !strcmp(argv[1], "-q")) {
printf("%s\n", current ? "hidden" : "visible");
}

XCloseDisplay(d);
exit(EXIT_SUCCESS);

return 0;
}
2

小白，看不懂

3

实现完成之后发个图吧

4

这段代码是用来实现显示桌面这个功能的，你可以在你的qt或者gtk程序的回调函数中使用这个代码