Implement the map

Continuing the discussion from How to draw a circle in MapwinGIS:

Hello

  1. I want to calculate the distance between the two icons on the map, without drawing a line.

Untitled

  1. I want to show the angle between two icons by drawing a line on the map. It is exactly like the map ruler, but instead of calculating the kilometer, show us the angle.

Untitled

  1. I want to show me a message box when I click on the icon on the map.

  2. I want to display the offline map of a city or country like google map in the application. Please help me to implement the offline map.

Please help me in these cases.