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// gcc -o wm_normal_hints wm_normal_hints.c -lX11
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <stdio.h>
#include <stdbool.h>
Display *display;
int screen_num;
Window root;
Window create_window(char * name, Window parent, int x, int y, int width, int height, int flags)
{
XSizeHints sh;
Window win = XCreateSimpleWindow(display, parent, x, y, width, height,
2, // border width
BlackPixel(display, screen_num),
WhitePixel(display, screen_num));
sh.width = width;
sh.height = height;
sh.x = x;
sh.y = y;
sh.flags = flags;
XSetWMNormalHints(display, win, &sh);
XStoreName(display, win, name);
XSelectInput(display, win, KeyPressMask | ButtonPressMask);
XMapWindow(display, win);
XFlush(display);
XSync(display, False);
return win;
}
int main(int argc, char **argv)
{
Window window1, window2, window3;
XEvent ev;
int i = 0;
int flags;
bool done = false;
char *display_name = NULL;
if ((display = XOpenDisplay(display_name)) == NULL)
{
fprintf(stderr, "Couldn't open %s\n", XDisplayName(display_name));
return -1;
}
screen_num = DefaultScreen(display);
root = RootWindow(display, screen_num);
while (1)
{
switch (i%3)
{
case 0:
flags = 0;
fprintf(stderr, "no flags\n");
break;
case 1:
flags = PPosition;
fprintf(stderr, "flags = PPosition\n");
break;
case 2:
flags = USPosition;
fprintf(stderr, "flags = USPosition\n");
break;
}
i++;
window1 = create_window("Test -ve", root, -100, -100, 200, 100, flags);
window2 = create_window("Test origin", root, 0, 0, 200, 100, flags);
window3 = create_window("Test +ve", root, 100, 100, 200, 100, flags);
while (1)
{
XNextEvent(display, &ev);
fprintf(stderr, "event on frame %i: ", ev.xany.window);
fprintf(stderr, "%d\n", ev.xany.type);
if (ev.type == ButtonPress)
break;
}
XDestroyWindow(display, window1);
XDestroyWindow(display, window2);
XDestroyWindow(display, window3);
if (done)
break;
}
return 0;
}
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