studmuff: You can't just compile MameUI by itself, it is just code that adds a UI to Mame. So you need to copy vanilla Mame source first, then copy over MameUI files. Also read the "Compiling MameUI circa .118.txt" file that comes with MameUI, it tells you where to place the MameUI source.
\winui directory to \src\osd\winui
mameui.mak to root w/ the core makefile
That means copy the winui files to src\osd\winui where you have extracted vanilla mame source. Then copy the mameui.mak into the root folder (where the vanilla mame "makefile" is located)
I'm just making sure I have this right before i do it. I did just run the regular source of mame126s.exe and it worked with the 0126u1.dif. I did not swap files so I will redo it but I want to make sure I have this right. Also I want to use the hi score diff or txt.
1. Again I want to make sure this is right. I make a copy of the winui files from MAMEUI and I send them to the src/osd/winui in the extracted mame126s.exe source. Then I copy the mameui.mak into the source folder and replace makefile. Do I also click the MAMEUI in the compiler.
2. After I apply patch for 0126u1.dif and it finishes, do I then apply the hi score diff/txt or do I press go and then apply the hi score patch.
Again sorry for being an idiot I know this is easy, I'm just use to using the MAME32 and MAMEUI programs. There just easier for people like me.