WinApi programming example.
In this example author working (creation of components) with:

1) Form
2) The main menu (Menu)
3) Buttons (Button)
4) Redaktiruemoe box (Edit)
5) label (Label)
6) Timer (Timer).

There is also an example of using a standard window (MessageBox) and the withdrawal of some standard sounds (Beep). The entire source perfectly commented.
This example was written more as article than as a source - so that the code is that Reading