завершился с кодом 1073740940
question
When I build my small Visual Basic Console program I get this message on the console;
What does this mean?
Please let me know how to rectify it.
14 Answers
I suspect that even when you tried to use StringBuilder that you declared the function as returning a String. This is a problem. The char* pointer that the unmanaged function _swe_version@4 returns will not be properly marshaled to a managed string and this is a source of the heap corruption error.
Sorry I don’t get it. Can you please explain it a bit more in simple language.
What does «This code is STATUS_HEAP_CORRUPTION (A heap has been corrupted).» mean?
What is «A heap has been corrupted»?
If the dll you are using contains unmanaged code it is possible that the signature for the unmanaged function used for p/invoke is incorrect. So memory corruption could result when the interop marhsaler transfers data between the managed and unmanaged code. Just a guess.
Run your VB app in the Visual Studio debugger. When your app crashes it should throw you into the code that is crashing. At that point you’ll have the exception type, message and stack trace on how it got there. Post that information along with the relevant lines of code.
Dear cooldadtx & RLWA32-6355,
Thanks for the reply.
The Functions I am using are given in the code.
Please note that when the «.Net Framework» is 4.0 this works fine & the console shows «Sweph Version : 2.09.01»; when «.Net Framework» is anything higher than 4.0 for eg 4.8, it does NOT work. When I click «Start without Debugging» the Console shows «Press any key to continue..»; when I click /»Start Debugging», empty console pops up & closes very quickly.
So, I don’t get any «Information» from debugging to post here. I hope I am doing it properly. please correct me if I am wrong.
My guess is that is blowing up on line 5. Set a breakpoint on that line to confirm.
I notice in the zip file you linked to that they support both x86 and x64. They are using different names for each of the binaries. If your VB app is compiling for x86 platform then your import statement should be correct. However there are several DLLs in this zip so you need to ensure that all those DLLs are in your project’s output directory.
Probably an issue with your import.
Thanks for the reply.
Re:
«You mention that if NF is higher than 4.0 then it doesn’t work. Does that mean you have 2 test machines. One that has 4.0 installed and one that has a newer version installed? «.
I hope this is okay. I’ve checked this changing the «Target Framework:» on the my other projects also. They too give problem for this function only others work fine. This function simply shows the version of the Swiss Ephemeris used in the project nothing else.
Please let me know what I am doing ( ie: changing the «Target Framework:») is okay / wrong.
Additionally you are using a string as the input parameter but the docs for this function says it will write to the output. Therefore string won’t work. Try using StringBuilder as Castorix31 did or use a string that is ByRef and is at least 255 characters in size.
Thanks for the helping.
Tried using «Stringbuilder» after writing «Imports System.Text»; it didn’t work & didn’t give any error messages.
Then tried «ByRef» and a String with 256 characters. It caused the console to show the following message when «Start without Debugging» was clicked.
I don’t understand the error message shown. Hope you will find it useful to solve the problem.
It shows the string isn’t going to work so use StringBuilder with ByVal. Did you also set the character set attribute to Ansi?
Note that you should always debug your app with the debugger. I honestly wish they would remove the «Starting without Debugging» option from the main menu. In my opinion it is never the right option.
Dear cooldadtx & RLWA32,
Thanks for the replies.
«RLWA32-6355 :
I suspect that even when you tried to use StringBuilder that you declared the function as returning a String..»
No, I had to use Stringbuilder for that too; otherwise it caused error on building. I’ll try your other suggestions. Thanks.
«cooldadtx :
It shows the string isn’t going to work so use StringBuilder with ByVal. Did you also set the character set attribute to Ansi?»
Please let me know how to do «set the character set attribute to Ansi»; Never done this so far.
I think I tried «Stringbuilder» with «ByVal». Not a big problem, I’ll try it now.
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