IUP

From Open Watcom

IUP makes it about as easy as it gets for producing a working first GUI program.

Take a look

If you want to look at the visual results Follow the gallery or screenshot links

To build

Download the Open Watcom static library binaries and unpack somewhere. Follow the download link

Download the IUP demonstration sources.

Choose one, perhaps sample.c

Give the C compiler the include path to the includes so it can find iup.h

Give the linker the path to the downloaded .lib and also the name of any lib it will need to link, such as iup

Compile and link.

Run the program. About as trivial as it gets.

Executable size here is 224k and according to the OW .map file the result keeps to core operating system calls.

C++

If you need to use C++, there is information in the IUP web pages.