@just me Thank you very much

@just me Thanks.
I tried other parameter combinations such as
p := DllCall("libcurl-x64\curl_version", "ptr")
s := NumGet(p, "char")
or s := NumGet(p, "int")
or s := StrGet(p, "CP0")
and got the following errors
Critical Error: Invalid memory read/write.What could be wrong?

autohotkey v2 x64 p := DllCall("libcurl-x64\curl_version", "Ptr") How to get the string from p? I already know str := DllCall("libcurl-x64\curl_version", "Astr") After this call, str is the correct version string. How to get the structure data from the pointer returned by the structure pointer of au...