[fpc-devel] DLL WIN64: Entry point not found

Dimitrios Chr. Ioannidis dchri at artesoft.gr
Wed Jul 18 19:05:51 CEST 2007

O/H Vincent Snijders έγραψε:
> Mark - WBIsoft.COM schreef:
>> I think the calling convention be STDCALL ?
> IIRC, that is the same on win64.

Are you sure about this ?

AFAIK, they  have opposite order of arguments in stack. In cdecl caller 
will clean up stack after the call (raise ESP) while in stdcall this is 
job of called function. I see no reason to change this because of 
32\64\128 bit architecture of CPU.

Anyway, the calling convention for a Firebird UDF is still cdecl either 
for x86_64 or x86_32.

PS: Don't forget to use ib_util_malloc() from ib_util.dll to allocate 
memory for the UDF result string declared as FREE_IT.

Dimitrios Chr. Ioannidis
Firebird Project

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