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#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(void) {
Display *d;
XIC xic;
Window w;
XEvent e;
char *msg = "cmdtree is a tree of commands";
int s;
char buf[32];
int len, done = 0;
KeySym ksym = NoSymbol;
Status status;
XIM xim;
d = XOpenDisplay(NULL);
if (d == NULL) {
fprintf(stderr, "Cannot open display\n");
exit(1);
}
s = DefaultScreen(d);
w = XCreateSimpleWindow(d, RootWindow(d, s), 10, 10, 100, 100, 1,
BlackPixel(d, s), WhitePixel(d, s));
xim = XOpenIM(d, NULL, NULL, NULL);
xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, w, XNFocusWindow, w, NULL);
XSelectInput(d, w, ExposureMask | KeyPressMask);
XMapWindow(d, w);
while (!done) {
XNextEvent(d, &e);
if (e.type == Expose) {
XFillRectangle(d, w, DefaultGC(d, s), 20, 20, 10, 10);
XDrawString(d, w, DefaultGC(d, s), 10, 50, msg, strlen(msg));
}
if (e.type == KeyPress) {
len = XmbLookupString(xic, (XKeyEvent*)&e, buf, sizeof buf, &ksym, &status);
if (ksym == XK_q) break;
}
}
XCloseDisplay(d);
return 0;
}
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