step 3: add widget shell sizing and frame pump

examples/sizing_window.py

@@ -0,0 +1,27 @@
+from typing import Any
+
+import dearpygui.dearpygui as _dpg
+
+import dpg_map as dpgm
+
+dpg: Any = _dpg
+
+
+def main() -> None:
+    dpg.create_context()
+    dpg.create_viewport(title="dpg-map window sizing", width=900, height=600)
+
+    with (
+        dpg.window(label="Fill Window", width=-1, height=-1),
+        dpgm.map_widget(tag="map-window", width=-1, height=-1),
+    ):
+        dpgm.add_marker("center", lat=0.0, lon=0.0)
+
+    dpg.setup_dearpygui()
+    dpg.show_viewport()
+    dpg.start_dearpygui()
+    dpg.destroy_context()
+
+
+if __name__ == "__main__":
+    main()