mirror of
https://github.com/moparisthebest/FireTray
synced 2024-08-13 15:53:47 -04:00
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
|
|
Compiled as:
|
|
gcc -Wall x11XGetWindowProp.c -o x11XGetWindowProp -lm -lXext -lX11
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/Xatom.h>
|
|
|
|
int main(void)
|
|
{
|
|
int screen, idx, stride;
|
|
int X, Y, W, H;
|
|
Atom actual;
|
|
unsigned long count, remaining;
|
|
int format = 32;
|
|
int request_size = 4 * sizeof(long);
|
|
unsigned char *xywh;
|
|
Display *d = XOpenDisplay(0);
|
|
|
|
if (!d) printf("Can't open display: %s",XDisplayName(0));
|
|
Atom _NET_WORKAREA = XInternAtom(d, "_NET_WORKAREA", 0);
|
|
screen = DefaultScreen(d);
|
|
|
|
/* Find the total screen size (assume X = Y = 0)*/
|
|
W = DisplayWidth(d, screen);
|
|
H = DisplayHeight(d, screen);
|
|
printf("Display Area: W: %d, H: %d\n", W, H);
|
|
|
|
/* New query the server to find the usable screen size */
|
|
if (XGetWindowProperty(d, RootWindow(d, screen),
|
|
_NET_WORKAREA, 0, request_size, False,
|
|
XA_CARDINAL, &actual, &format, &count, &remaining, &xywh) || !xywh)
|
|
{
|
|
printf("Get workarea failed\n");
|
|
}
|
|
else
|
|
{
|
|
printf("Got workarea OK\n");
|
|
printf("format: %d, count: %ld, remaining: %ld\n", format, count, remaining);
|
|
/* How many bytes per sample? */
|
|
stride = format / 8;
|
|
X = *(int*)&xywh[0];
|
|
Y = *(int*)&xywh[stride];
|
|
W = *(int*)&xywh[stride * 2];
|
|
H = *(int*)&xywh[stride * 3];
|
|
|
|
/* Now print out the raw xywh byte array for checking */
|
|
for(idx = 0; idx < request_size; idx++)
|
|
{
|
|
printf("%02X ", xywh[idx]);
|
|
if(!((idx +1)%8)) puts(" ");
|
|
}
|
|
/* release the xywh resources */
|
|
XFree(xywh);
|
|
printf("Usable Area: X: %d, Y: %d W: %d, H: %d\n", X, Y, W, H);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* End of File */
|