Article: Q164742
Product(s): Microsoft FoxPro
Version(s): 3.0 3.0b 5.0 6.0
Operating System(s):
Keyword(s): kbprogramming kbtool kbvfp kbvfp300 kbvfp300b kbvfp500 kbvfp600
Last Modified: 21-AUG-1999
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The information in this article applies to:
- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 6.0
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SYMPTOMS
========
The following error occurs when you attempt to call a function in a 16-bit DLL
that has been registered with the DECLARE-DLL command:
Cannot load 32-bit DLL <path to DLL>
It may also seem to happen in calling the RegFn() function in FoxTools, if the
incorrect syntax is used, after having registered the function with the
DECLARE-DLL command.
STATUS
======
This behavior is by design. The DECLARE-DLL command should only be used to
register 32-bit DLL functions in FoxPro. To register a function of a 16- bit
DLL, use the RegFn function of the FoxTools.FLL library.
MORE INFORMATION
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Steps to Reproduce Behavior
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The following steps are for illustration purposes only -- the DLL in the example
does not exist.
Type the following commands in the command window:
DECLARE INTEGER TestFn IN Test16.dll INTEGER,INTEGER
*** The error will occur on executing the next line of code
? TestFn(1,1)
*** Removing the asterisk on the next line would resolve the error
*** that occurs on the first RegFn() call below.
* CLEAR DLLS
SET LIBRARY TO HOME()+"FoxTools.FLL"
*** The error will occur on executing the next line of code
*** because it is attempting to call the TestFn() function registered
*** above with the DECLARE-DLL command
handle = RegFn(TestFn(),"II","I","Test16.DLL")
* The correct way to register the function is...
handle = RegFn("TestFn","II","I","Test16.DLL")
ReturnValue = CallFn(handle, 1, 1) && Note this works now
Additional query words:
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Keywords : kbprogramming kbtool kbvfp kbvfp300 kbvfp300b kbvfp500 kbvfp600
Technology : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b kbVFP500 kbVFP600
Version : 3.0 3.0b 5.0 6.0
Issue type : kbprb
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