OpenEuphoria

DLL Function which returns values in input parameters

• Posted by Rad <radhx at rediffmail.com> Nov 06, 2006
• 703 views

Hi,

I am evaluating a software called 1Way which converts any application
into a time-bound trial ware using dll's.

All the functions of the provided dll work fine except one.

The dll has a function which requires 11 parameters and returns already
stored Registration Details.
First 2 parameters are input values of string type viz. "Serial Number"
and the "Password" used to generate it.
The next 9 parameters are of integer type and used by the function to
return various registration details in it.

Return value of function is True or False.
(Note: the actual return values are part of input values provided to function)

The structure of function in my application is as follows-

xregGetSerialInfo = registerw32Function(syndreg, "GetSerialInfo", {C_POINTER,
C_POINTER,
								   C_INT, C_INT, C_INT,
    				 				   C_INT, C_INT, C_INT,
    				 				   C_INT, C_INT, C_INT}, C_UINT)

The same function structure in the C program Header provided with the
software demo is as follows-

typedef bool  ( __stdcall *pGetSerialInfo )( char*, char*, int, int, int, int,
int, int, int, int, int );

The Demo provided with the software works fine giving back the registered
details written by my application.
   				 				   
But when this function is evoked in my application in Euphoria 3.0.1,

RegOptions        = 0
SerialExpire      = 0
SerialExpireDay   = 0
SerialExpireMonth = 0
SerialExpireYear  = 0
RegExpire         = 0
RegExpireDay      = 0
RegExpireMonth    = 0
RegExpireYear     = 0
if w32Func(xregGetSerialInfo, {regKey, SrlPass,
RegOptions, SerialExpire, SerialExpireDay, SerialExpireMonth,
SerialExpireYear,
			RegExpire, RegExpireDay, RegExpireMonth, RegExpireYear}) then
	void = message_box("SerialInfo OK", "Msg", 0)
else
	void = message_box("SerialInfo NOT OK !!!", "Msg", 0)
end if

I get following error-

D:\EUPHORIA\Win32Lib\Include\w32dll.ew:212 in function w32Func() 
A machine-level exception occurred during execution of this statement 
    funcid = 304
    parms = {820204,819788,0,0,0,0,0,0,0,0,0}
    lRC = <no value>
    libfunc = <no value>
    lFuncDef = 15
    linked = <no value>
    memset = 1252492
    i = 11

... called from D:\EUPHORIA\Projects\Syndicate ODBC\Test.ew:60 


Can anybody guide me solving this issue?

Regards,
Rad.