Consultor Eletrônico

Solution ID: P13620

FACT(s) (Environment):

Progress 9.1x

SYMPTOM(s):

unable to call non-void functions defined in dll, error 6069

'C' Call Stack has been compromised after calling  in  (6069)

FIX:

Define the return parameter for the API call as a RETURN parameter.

For example:

The following C function

int APIENTRY testDLL( int pin )

would be coded in the 4GL as:

PROCEDURE testDLL EXTERNAL "testDLL.dll":
   DEFINE INPUT PARAMETER pin AS LONG.
   DEFINE RETURN PARAMETER pres AS LONG.
END PROCEDURE.