Simple GDI Rectangle using MoveToEx and LineTo

[hutch--]

Simple and easy to use code for drawing a rectangle in the client area of a Window. There are multiple ways of doing this.

[morgot]

Hello
why you use rcall ? What is it, and why no invoke?

[hutch--]

Its only a minor difference but using "rcall" means you are only using up to the four registers with no shadow space overhead. "invoke" is more flexible, can handle different data sizes and handle more arguments but "rcall" has less overhead.