On 06 Feb 2010, at 09:21, dayat wrote:
I have a function ftest located in library program (dll).
function ftest(Param: PWideChar): PWideChar; stdcall; export;
And will call them with a program with use:
function ftest(Param: PWideChar): PWideChar; stdcall; external 'test.dll';
while compiling to exe, I got error like this:
C:\fpc\testfpc testcall.pas
Free Pascal Compiler version 2.4.0 [2009/12/18] for i386
Copyright (c) 1993-2009 by Florian Klaempfl
Target OS: Win32 for i386
Compiling testcall.pas
testcall.pas(11,26) Fatal: Unknown compilerproc fpc_read_text_widechar.
Check
if you use the correct run time library.
Fatal: Compilation aborted
Error: C:\usr\local\fpc\2.4.0\bin\i386-win32\ppc386.exe returned an error
exitco
de (normal if you did not specify a source file to be compiled)
What the wrong, how to solving the problem.
It is unrelated to those funcion definitions. Apparently, we forgot to include
a read() helper for reading a single widechar in the RTL. I guess you are doing
a read(param^) inside ftest, which requires this helper.
You can work around it by reading an entire widestring at once, if that is
possible in your program.
Jonas___
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