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#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>
int main( int argc, char* argv[]) {
printf("hallo\n");
Display* display;
int display_cnt;
char* display_name;
int current_screen, new_screen;
Window current_focus;
Window new_root;
XWindowAttributes current_focus_attributes;
display_name = getenv("DISPLAY");
if ( display_name == NULL ) {
printf("DISPLAY is not set.\n");
return 1;
}
display = XOpenDisplay(display_name);
if (! display ) {
printf("Could not open display.\n");
return 1;
}
display_cnt = ScreenCount(display);
printf("Number of displays: %i\n", display_cnt);
if (display_cnt < 2) {
printf("Not enough screens :'(\n");
return 1;
}
int revert; //Unused
XGetInputFocus ( display, ¤t_focus, &revert );
XGetWindowAttributes ( display, current_focus, ¤t_focus_attributes );
current_screen = XScreenNumberOfScreen( current_focus_attributes.screen );
printf("current: %i\n", current_screen);
// Cycle through screens
new_screen = current_screen < (display_cnt -1) ? current_screen + 1 : 0;
new_root = RootWindow( display, new_screen );
XSetInputFocus ( display, new_root, RevertToParent, CurrentTime );
XGetWindowAttributes ( display, new_root, ¤t_focus_attributes );
int new_x = (current_focus_attributes.width / 2);
int new_y = (current_focus_attributes.height / 2);
XWarpPointer( display, None, new_root, 0,0,0,0, new_x, new_y);
XCloseDisplay(display);
return 0;
}
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