About WinApi and Graphics in assembly

I was searching google for hours trying to find materials about
graphics and winapi in assembly and i wasnt able to find anything
so i wondered if there is something like that in assembly (im almost sure there is)
if so where can i learn about it?

// sorry for the bad english

edit:
someone told me to search for win32asm
and i found out that u can call functions on assembly
like in C
so now i want to know how to create a window
in assembly
for example
http://www.winprog.org/tutorial/simple_window.html

is showing types of vars that i cant define on assembly
so what can i do in that situation ?

and about the WC struct
what do i do in assembly instade?
[741 byte] By [danrevah] at [2007-11-20 7:55:28]