检测显示器信息

src/main.c

@@ -1 +1,25 @@
-int main(int argc, char *argv[]) { return 0; }
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "utils.h"
+#include "xcb.h"
+
+int main(int argc, char *argv[]) {
+  if (has_other_wm_running()) {
+    die("another window manager is already running");
+  }
+
+  {
+    monitor_rect_t *mr = detect_monitor_rect();
+    uint32_t i = 0;
+    while (mr) {
+      printf("mon[%u]: x: %d, y: %d, w: %u, h: %u\n", i, mr->x, mr->y,
+             mr->width, mr->height);
+      mr = mr->next;
+      free(mr);
+    }
+  }
+
+  return 0;
+}