Solved

Declaring DLL functions in WIN98 and WIN2000

Posted on 2002-07-05
9
241 Views
Last Modified: 2010-05-02
Dear All,

I have a module which contains reference to DLL functions and subs. The problem is that my program should be used under WIN98 as well as WIN2000, the problem is the DLL exists in C:\windows\system when it is in WIN98 and C:\WINNT\system32 in WIN2000. I would like to declare the path of the function depending on the version of windows I am using.

Your help is appreciated.
0
Comment
Question by:khaledc
  • 3
  • 2
  • 2
  • +2
9 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 50 total points
ID: 7132126
You shouldn't define the full path, as windows could be installed anywhere (also on other drives D:, E: etc).
What is your underlying problem?
0
 
LVL 1

Author Comment

by:khaledc
ID: 7132133
I would like to specify the path of the DLL depending on the vesion of windows. I am sure I had seen something similar done before but the problem is that I can't remember the syntax.
0
 
LVL 16

Expert Comment

by:Richie_Simonetti
ID: 7132164
Not at all, Angel is correct. If you install that dll with an installer, the install program should knows where is located the system directory for each windows version.
0
Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

 
LVL 1

Author Comment

by:khaledc
ID: 7132171
What happened if the files do not exist in the system directory, I am aware of the common path specified of windows but I need to have control over the declaration path.
0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 7132175
You simply have to ensure that the dll is in the "PATH" (or in the application folder itself), otherwise you have to use LoadLibrary API, while then you cannot DECLARE the function as such.

CHeers
0
 
LVL 43

Expert Comment

by:TimCottee
ID: 7132202
Comment
From: TimCottee  Date: 07/05/2002 07:32AM PST  
If it is in the system folder as described then there is no need to declare the path to it as this is automatically assumed.  

0
 
LVL 3

Expert Comment

by:PNJ
ID: 7132395
Can you use the API calls to get the Windows & System directories?

   Declare Function GetWindowsDirectory Lib "kernel32" _
      Alias "GetWindowsDirectoryA" (ByVal lpBuffer As String, _
      ByVal nSize As Long) As Long
     
   Declare Function GetSystemDirectory Lib "kernel32" Alias _
      "GetSystemDirectoryA" (ByVal lpBuffer As String, ByVal nSize As Long) As Long

Eg:
   Dim sBuffer As String
   Dim iReturn_Value As Long
   
   sBuffer = String$(200, " ")
   iReturn_Value = GetWindowsDirectory(sBuffer, 200)


   
0
 
LVL 16

Expert Comment

by:Richie_Simonetti
ID: 7138094
"C" grade!, Why?
0
 
LVL 1

Author Comment

by:khaledc
ID: 7139223
Simply because you were the first to answer but not quite what I want.. I was aware of the PATH issue and hence nothing was added to my knowledge, I guess "C" in this situation might have been adequate for just taking an effort.

Cheers.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The debugging module of the VB 6 IDE can be accessed by way of the Debug menu item. That menu item can normally be found in the IDE's main menu line as shown in this picture.   There is also a companion Debug Toolbar that looks like the followin…
This article describes some techniques which will make your VBA or Visual Basic Classic code easier to understand and maintain, whether by you, your replacement, or another Experts-Exchange expert.
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question