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#include <cairo.h>
#include <cairo-xlib.h>
#include <X11/Xlib.h>
#include <unistd.h>
int main (int argc, char *argv[])
{
Display *dpy;
unsigned long white;
Window w;
Visual *vis;
GC gc;
cairo_surface_t *surface;
cairo_t *cr;
dpy = XOpenDisplay(NULL);
white = WhitePixel(dpy, DefaultScreen(dpy));
w = XCreateSimpleWindow(dpy, DefaultRootWindow(dpy), 0, 0, 240, 80, 0, white, white);
vis = DefaultVisual(dpy, DefaultScreen(dpy));
XSelectInput(dpy, w, StructureNotifyMask);
XMapWindow(dpy, w);
gc = XCreateGC(dpy, w, 0, NULL);
XSetForeground(dpy, gc, white);
for (;;) {
XEvent e;
XNextEvent(dpy, &e);
if (e.type == MapNotify) {
break;
}
}
surface = cairo_xlib_surface_create(dpy, w, vis, 240, 80);
cr = cairo_create(surface);
cairo_select_font_face(cr, "7x14", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, 14.0);
cairo_set_source_rgb(cr, 0.0, 0.0, 1.0);
cairo_move_to(cr, 10.0, 50.0);
cairo_show_text(cr, "Hello, world");
XFlush(dpy);
sleep(2);
cairo_destroy(cr);
cairo_surface_destroy(surface);
XDestroyWindow(dpy, w);
XCloseDisplay(dpy);
return 0;
}
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