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headers and 64-bit programs

Started by shankle, September 17, 2012, 09:56:04 PM

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To my way of thinking, there should be a separate set of headers for
64-bit programming. For EX: Mr. Gordons documentation for
WNDCLASS does not show how to code for the WNDCLASSEX api.
Yes there is a sample for WNDCLASS, but at my stage of learning,
when to add the Q in place of the D and how much to add to the
end is still confusing. This also applies to any other API.
Where can I read more on this?


The sdk is the answer,you can translate it with
The winuser is abble to answer you.
Fa is a musical note to play with CL


Hi ToutEnMasm and thank you for replying.
I tried to download the Luce.yves thingy but ESET SS gave this virus
warning:  a variant of win32/krypt.k.bne trojan.
Most likely a false positive.
Let me know what you find out Please.


There is no virus in the zip file and not in the forum,change it.
"Microsoft security essential" is free and work very well.
Fa is a musical note to play with CL


Short story, pointers move up to 64-bits. Things do get a bit more complicated with alignment of structures and their members. If using Edgar's header files, you will see 64-bit members with either a type of mainly HANDLE or PTR (some others too, like DWORD_PTR) which switch from 32-bit to 64-bit if you define the symbol WIN64. Without going back to the header files, these will typically be members with names starting with h (ex. hIcon) and lp (ex. lpszClassName).

If you define a structure in a data or constant section (not LOCAL) and get GoASm to create a listing file, you can see how these resolve to DQ and where extra padding has been added for proper alignment.