void
resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
{
	char *sdst = NULL;
	int *idst = NULL;
	float *fdst = NULL;

	sdst = dst;
	idst = dst;
	fdst = dst;

	char fullname[256];
	char *type;
	XrmValue ret;

	snprintf(fullname, sizeof(fullname), "%s.%s", "dwm", name);
	fullname[sizeof(fullname) - 1] = '\0';

	XrmGetResource(db, fullname, "*", &type, &ret);
	if (!(ret.addr == NULL || strncmp("String", type, 64)))
	{
		switch (rtype) {
		case STRING:
			strcpy(sdst, ret.addr);
			break;
		case INTEGER:
			*idst = strtoul(ret.addr, NULL, 10);
			break;
		case FLOAT:
			*fdst = strtof(ret.addr, NULL);
			break;
		}
	}
}

void
load_xresources(void)
{
	Display *display;
	char *resm;
	XrmDatabase db;
	ResourcePref *p;

	display = XOpenDisplay(NULL);
	resm = XResourceManagerString(display);
	if (!resm)
		return;

	db = XrmGetStringDatabase(resm);
	for (p = resources; p < resources + LENGTH(resources); p++)
		resource_load(db, p->name, p->type, p->dst);
	XCloseDisplay(display);
}

void
xrdb(const Arg *arg)
{
	int i;
	load_xresources();
	for (i = 0; i < LENGTH(colors); i++)
		scheme[i] = drw_scm_create(drw, colors[i],
		#if BAR_ALPHA_PATCH
		alphas[i],
		#endif // BAR_ALPHA_PATCH
		ColCount
		);
	#if BAR_SYSTRAY_PATCH && !BAR_ALPHA_PATCH
	if (systray) {
		XMoveWindow(dpy, systray->win, -32000, -32000);
	}
	#endif // BAR_SYSTRAY_PATCH
	arrange(NULL);
	focus(NULL);
}