Homework from Technical University of Sofia - Plovdiv branch. The project is C++ Windows Desktop Application. When the app starts it creates another window - which is child window of the main frame - the child window has size 1/4 of the main frame, cannot be resized, we can only move it in the main frame. The main frame has more functionality - when we click with the left mouse button, it draws a circle, and saves the coordinates of the circle. When the right mouse button is clicked it clears the window and all the circles disappear. When we click the middle button of the mouse the app draws the last eigth circles, which were drawn in the main frame. The same functionality for drawing and clearing the window are also available for the child window.