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the below declarations of a simple function in a regular dll in vc++ successed only in vc++ client program and fails in delphi client program.
1. extern "C" __declspec(dllexport) int func(int num)
In Delphi = "access violation at address"
2. extern "C" __declspec(dllexport) int _stdcall func(int num)
In Delphi = Not successed to connect to the dll function at all.
=======================================================================
3.
I saw a declaration of function of dll that created in c and succesed in delphi client program and it seems so:
int far PASCAL _export func(int num)
------------------------------------------
I tried it and I gets warning C4236: nonstandard extension used : '_export' is an obsolete keyword, see documentation for __declspec(dllexport)int far PASCAL _export func(int num)and It not works of course
=======================================================================
What is the sulation ???
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i use:
extern "C"
{
extern int WINAPI myFunc(int param);
}
this works for VB, Delphi, Access, PowerBasic, C/C++, etc..
-c
POKE 808,234
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Manny thanks !
And where is the body of the function ?
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I change my declaration in my dll to that frame:
extern "C" {extern int WINAPI myFunc(int param);
{Body func}
}
Now How have I declare that func in my client program in vc++ for example ??
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Please, help someone ... 
==============
www.design.kg
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Can you to be more clever Please...
Best Regards...
Carlos Antollini.
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Say what ? What do you want it to do with them, just throw them out, or not display them, or parse them, or what ?
You need to subclass CEDit methinks, whatever you are trying to do.
Christian
After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001
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If it's possible
==============
www.design.kg
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I said
Say what ? What do you want it to do with them, just throw them out, or not display them, or parse them, or what ?
Karavaev Denis wrote:
If it's possible
So which is it then ? Just to recap the options:
1/ Just throw them out - the tags are lost
2/ Not display them - the tags are somehow stored in the edit box but not displayed
3/ Parse them - the tags are not visible and they take effect.
Christian
After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001
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you want your edit box to
just throw out the input and not display it and parse it?
Just a clue as to what you actually want to do would help a bit. No, I don't mean a bit, I mean loads.
We do it for the joy of seeing the users struggle.
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- Take a look at such codes below:
loop1{
loop2{
// want to break here
}
}
//next code to execute
- If I want to break from "// want to break here" to "//next code to execute", how to use the statement "break" to implement the task? Can I use "break [label]", like in Java?
- Can you show me an example?
- Regards,
Maer
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You can do one of three things
1/ Use goto - this has the down side of having to sell your soul to the dark side
2/ Use a bool condition to help you know to break twice. This has the downside of being messy
3/ Use try/catch/throw. This has the downside of being good C++ and resulting in lesser mortals feeling jealous and not inviting you to their parties.
Christian
After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001
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I meet one problem by using VC++6.0 in which the color of text
in a bitmap need to be changed with time or mouse clicked.
I really know a little about this. Would you please
send me some ideas or some useful class or articles?
Thank you very much!
Best Regards,
Yuehui Chen
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How do you mean ? Do you own the bitmap ? In what context is it being used ? Did you draw the text in the first place ? If so, just change the text colour and draw it again.
Christian
After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001
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Hello,
I would like to know how to create a excel file which contain
several sheet.
Thanks for help.
S.
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G'Day Samprayoga
I was doing something similar just last week. There are a heap of knowledge base articles I found about this. Q179706 was the one I started with. From memory it has links to a more. Alternatively searching MSDN for 'office automation' should yield enough useful articles to get you started.
Good Luck!
Richard.
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Hello guru's and here I go again:
I'm writing a dll that holds some of the data for my main program to work with. I have 3 functions in the dll which I want to access using GetProcAddress. Everything works perfect if I use the lib file for the dll and it's header in the main program - I call the functions and the and the work great. But if I call LoadLibrary, then GetProcAddress I get thousands of exceptions and my program crashes.
Here is how my functions are defined:
(1) Body
__declspec(dllexport) CString GetPriceString(int nNum)
{
...do stuff
}
__declspec(dllexport) int GetStringCount()
{
...do stuff
}
(2)Header
__declspec(dllimport) int GetStringCount();
__declspec(dllimport) CString GetPriceString(int nNum);
If I use the lib and header file for the above func. everything works fine, but if I don't and I really want to call the functions with GetProcAddress, it doesen't.
(3) DEF file
GetPriceSting
GetStringCount
(4) The way I use the GetProcAddress
CString (*GetPriceString)(int); // global
int (*GetStringCount)(void); // another global
(5) In the function
HINSTANCE hDll=::LoadLybrary("TheDll.dll");
GetPriceString=(GetPriceString)::GetProcAddress(hDll, "GetPriceString");
// Exception
GetPriceString(nNum);
So, if anyone can guide me of what I'm doing wrong - may be in the way that I construct the dll, or the way i call the functions, I'll be very thankful. Code sample appreciated also.
Greetings,
Deian
    
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The functions get exported with their C++ mangled names. You'll need to look at your DLL's exports with Depends or Dumpbin to find the mangled names, and use those names in GetProcAddress().
You can also add extern "C" to the prototype to remove the C++ mangling (although I don't know if that will work because GetPriceString() returns a C++ object - try it and see).
--Mike--
http://home.inreach.com/mdunn/
#include "witty_sig.h"
![Heart | [heart]](https://www.codeproject.com/script/Forums/Images/love.gif) your ![Green Alien | [Alien]](https://www.codeproject.com/script/Forums/Images/alien.gif) with ![Good Stuff | [The good stuff]](https://www.codeproject.com/script/Forums/Images/vegemite.gif) and ![Beer | [beer]](https://www.codeproject.com/script/Forums/Images/beer.gif)
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hello,
is there a way to find the current users favorites directory ?
thanks
.
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TCHAR szPath[MAX_PATH];
SHGetSpecialFolderPath ( CSIDL_FAVORITES, szPath, MAX_PATH, FALSE ); This requires the Active Desktop shell. On 95 and NT 4, use SHGetSpecialFolderLocation() instead.
--Mike--
http://home.inreach.com/mdunn/
#include "witty_sig.h"
your with and
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In my machine(win2000,mem 128)
when I use the sentence to allot memory,it show error in run!
unsigned char *pTemp = new unsigned char[600000];
but when I user
unsigned char *pTemp = new unsigned char[400000];
it is right in run!
why?
can you tell me how to allot a big memory ,like 1000000 char!
thanks in advance!
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You shouldn't have any problems with allocating 600kb of memory. What kind of error are you getting?
Tomasz Sowinski -- http://www.shooltz.com
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