|
I am a newbie in vc++. So take it easy on me if i ask something very stupid 
I'm writing a dialog program that uses rs232.
It works fine, but from a point and then when i add a control variable to a button or just another variable it compiles fine but when executing it doesn't even show any window. Not even a message
Using the debugger produces the following message
Unhandled exception at 0x00000001 in ZenoController.exe: 0xC0000005: Access violation reading location 0x00000001.
Can anyone please help me?
Thanks a lot
I can send the program if it helps
|
|
|
|
|
eanton83 wrote: Unhandled exception at 0x00000001 in ZenoController.exe: 0xC0000005: Access violation reading location 0x00000001.
In the Debug menu choose Exceptions. Find "C0000005 Access Violation" in the list (under Win32
exceptions) and highlight it. In the radio buttons below click the "break into debugger" button
in the when exception is thrown section.
When you run it in the debugger it will stop when the exception is thrown and you can hopefully
see where the problem is.
|
|
|
|
|
Mark Salsbery wrote: In the Debug menu choose Exceptions. Find "C0000005 Access Violation" in the list (under Win32
exceptions) and highlight it. In the radio buttons below click the "break into debugger" button
in the when exception is thrown section.
Thats a handy little trick, I never noticed it there before, or perhaps it wasn't included in VC6? Thanks for sharing :->
|
|
|
|
|
It is in VC6.0, just in a slightly different interface (and a bit hard to understand at first).
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
|
|
|
|
|
 Honestly I just learned that one yesterday, here at CP.
I had never seen the Exceptions dialog before. The cool thing is you can add exceptions to the
list!
That's what I like about this place.
|
|
|
|
|
Mark Salsbery wrote: I just learned that one yesterday
LMAO
I wish I knew about it earlier. The amount of times I've pulled hair trying to find the cause... (not so much these days mind  )
|
|
|
|
|
WalderMort wrote: I wish I knew about it earlier
Me too!!
|
|
|
|
|
Looks like a NULL pointer issue right off the bat - check the location being read: 0x00000001. IIRC, any read or write to address in the range of 0x00000000 to 0x00000400 automatically triggers an IPF because that is the reserved "NULL pointer range" used to catch problems just like this.
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
|
|
|
|
|
It's a "1 pointer", not a "NULL Pointer"
|
|
|
|
|
error C2065: 'Createprocess' : undeclared identifier
How can I do it?
|
|
|
|
|
Write CreateProcess(...) Note that 'C' and 'P' are capital.
We Believe in Excellence
www.aqueelmirza.cjb.net
|
|
|
|
|
And see Requirements On MSDN
Include Winbase.hand Link To Coredll.lib
|
|
|
|
|
WhiteSky wrote: nclude Winbase.hand Link To Coredll.lib
i believe this file is included in any mfc application by default,,, it is oart of windows.h
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and you
|
|
|
|
|
good point
|
|
|
|
|
WhiteSky wrote: ...and Link To Coredll.lib
That's kernel32.lib.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
|
|
|
|
|
Hello, im serching for a simple free DOM-Parser which is written in c and has no dependencies to some ms or other libraries. Everything which I found here, did not function in my project not well. Any Ideas. 
|
|
|
|
|
|
|
search google and/or sourceforge for tinyXML.
this is certainly the best library, with no dependancies (only the STL, but you can restrict it not to use the STL).
BTW, i'm currently writing mine 
|
|
|
|
|
toxcct wrote: BTW, i'm currently writing mine
I have my hand raised ready for beta testing 
I find TinyXML not to be as Tiny as it claims. It does the job well, but it's bloated with all sorts of functions that I would probably never ever use. That and it's inability to support UNICODE.
|
|
|
|
|
WalderMort wrote: I find TinyXML not to be as Tiny as it claims
actually, i also think so, that's mainly why i'm writing mine, but as there are so many people around here finding it pretty cool, i thought i might be just me...  welcome to my club then 
WalderMort wrote: I have my hand raised ready for beta testing
damn, now i have to writing maintainable code 
|
|
|
|
|
Are you planning to implement anything like the TiXmlHandle class? I never could get it to work the way they claim it should and instead have to resort to their whole 'get the node' 'convert' 'get the child'... Why couldn't they just make it a simple one liner. If it's there it's there, if not then "aint you glad you didn't write all that code"?
toxcct wrote: damn, now i have to writing maintainable code
And don't forget the comments! 
|
|
|
|
|
i don't really know for the moment.
i'm eating the XML 1.0 specifications for now ; i'll think of the implementation a bit later
but i plan to port into C++ the JDom library (from Java)... maybe i'll have to implement such a handle class for managing the NULL references (yes, i'm more favorable to using references than pointers  )
|
|
|
|
|
toxcct wrote: i plan to port into C++ the JDom library (from Java)...
I heard that is supposed to be one of the best, but since I don't do anything java wise I wouldn't know.
Not so long ago I built my own Excel parser. That was a semi-port from java. I don't mean to bloat but I found nothing in C/C++ that comes even close to my implementation of reading a whole document in just 5 lines of code. That was using references also.
|
|
|
|
|
WalderMort wrote: I heard that is supposed to be one of the best
yes, it's pretty cool ; and as we use Java at office i could test it for all the common usage features...
WalderMort wrote: Not so long ago I built my own Excel parser. That was a semi-port from java. I don't mean to bloat but I found nothing in C/C++ that comes even close to my implementation of reading a whole document in just 5 lines of code. That was using references also.
why not writing an article about it ? 
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
