DllCall error (call my own dll writen in cpp)

[PeterW]

a windows error window prompt when call "DllCall" to my own dll writen in cpp.

some js error in my explorer, i can not insert it in code style, sorry.

the cpp dll function is simple:

void CheckExistedNBs(char *expectedVal, int expectedValLen,

char *obtainedVal, int obtainedValLen)

//int CheckExistedNBs(int i)

{

int existedNB = expectedValLen;

//return existedNB;

}

the dumpbin output is:

00000000 characteristics

4B583632 time date stamp Thu Jan 21 19:10:42 2010

0.00 version

1 ordinal base

1 number of functions

1 number of names

ordinal hint RVA name

1 0 00001000 CheckExistedNBs = _CheckExistedNBs

the script is :

$expectedval = "1009FF"

$obtanedval="1009FF1009FF1009FF1009FF"

MsgBox(1,"","Debug?")

$result = DllCall("..\Debug\T101CheckFrame.dll","none","CheckExistedNBs","str",$expectedval,"int",StringLen

($expectedval),"str",$obtanedval,"int",StringLen($obtanedval))

my os is windowsXP , the autoit is v3

[PeterW]

I used VS2008 , and debug the autoit3.exe. I found that the function in dll is excuted correctly, all parameters` values are right. But a exception happens after calling the function.

Is there any tips to creat user dll?

[jchd]

I used VS2008 , and debug the autoit3.exe. I found that the function in dll is excuted correctly, all parameters` values are right. But a exception happens after calling the function.

Read again the DllCall help: you probably need to specify "none:cdecl" as the return type of your function.

[PeterW]

Read again the DllCall help: you probably need to specify "none:cdecl" as the return type of your function.

Thanks very much.

I have debugged 2hour for this.