Hall of Fame

1. Tolomir2,000
2. rockiroads1,500
3. namol1,100
4. boag20001,000
5. -DJL-900
6. RiteshShah672
7. IdoMillet664
7. CRXIuser...664
9. jimpen250
10. pcelba120
11. NerdsOfT...80

1. meyersd3,750
2. andyalder3,200
3. mirtheil2,000
3. oleggold2,000
3. ezaton2,000
3. Tolomir2,000
3. Twisteddk2,000
8. Lonewolf701,500
8. tonydema...1,500
8. rockiroads1,500
11. namol1,100
12. GRayL1,000
12. theruck1,000
12. boag20001,000
12. jkjackson1,000
16. -DJL-900
17. AnthonyP...800
18. dovidmichel750
19. RiteshShah672
20. IdoMillet664
20. CRXIuser...664
22. mlmcc500
22. stevbe500
22. jerryb30500
25. woolmilkp...375

	[x] Posted via EE Mobile
	Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

Question

	[x] Attachment Details

[x]

The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

The Grade of the Solution
The Zone Rank of the Expert Providing the Solution
The Number of Author and Expert Comments
The Number of Experts Contributing
The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

6.4

Clarion dll gives a "Attempted to read or write protected memory" error

Asked by rveede in Clarion, C# Programming Language

Tags: protected, read, write, memory, attempted

Hi,
I've a .DLL file that's made with Clarion. This DLL file does some things and returns a string value.
I want to use some methods of this DLL in my C# program. So I used dllimport with the methods I want to use.
So far so good, but sometimes I get a "Attempted to read or write protected memory" error. Not all the time.

I am not sure if I'm using the DLL import right in this case.
This is my dllimport syntax:
[DllImport("C:\\callcw.dll", EntryPoint = "getKlantbyID")]
public static extern string getKlantbyID(string companyid, string klantid);

and this is the way i call this method:
string xmlPath = getKlantbyID(companyid, klantnummer).ToString();
companyid and klantnummer are both of the type 'string'.

This is the function prototype in Clarion:
getKlantbyID(Long, Long),String,Pascal
The variable it returns is of the type 'CString(500)'

I'm not sure but I think the error has to do with the way I'm using the DLL in C#.

View the Solution FREE for 30 Days

20091111-EE-VQP-92

Clarion dll gives a "Attempted to read or write protected memory" error

Asked by rveede in Clarion, C# Programming Language

Tags: protected, read, write, memory, attempted

About this solution