Whats the difference between DialogBoxParam and DialogBoxParamA

[UPucker]

Looked around and kind find any explanations.

[AeroASM]

Any API which takes a string as an argument has two versions: unicode (W) and ascii (A). eg MessageBoxA and MessageBoxW. MASM and most C compilers automatically append an A if you do not specify, so under MASM DIalogBOxParam and DialogBoxParamA are equivalent.

[MichaelW]

Also some functions that take individual characters as arguments (e.g. GetCharWidth32), or that take a string as part of a structure argument (e.g. EnumFontFamiliesEx), are implemented in ANSI and Unicode versions.

[UPucker]

Thanks for the info.

Learning more every day.

[tenkey]

Also note that the compilers and assemblers don't know which functions have dual forms.

The translation to the A and W versions happens in the "include" files.