Re: GetprocAddress not able to locate address - C / C++ / MFC Discussion Boards

Re: GetprocAddress not able to locate address

With_problem18-Dec-06 19:07

With_problem

18-Dec-06 19:07

Re: GetprocAddress not able to locate address

Hamid_RT18-Dec-06 19:19

Hamid_RT

18-Dec-06 19:19

use of this function for see error and also check setQuoteToDB for exports statement on dll

WhiteSky

Re: GetprocAddress not able to locate address

With_problem18-Dec-06 19:27

With_problem

18-Dec-06 19:27

do you have any link,i have never used this function before

Re: GetprocAddress not able to locate address

Hamid_RT18-Dec-06 19:32

Hamid_RT

18-Dec-06 19:32

You dont need any link best explain is on MSDN Smile | :)

WhiteSky

Re: GetprocAddress not able to locate address

Hamid_RT19-Dec-06 7:40

Hamid_RT

19-Dec-06 7:40

Is your problem solving?

WhiteSky

Re: GetprocAddress not able to locate address

With_problem19-Dec-06 16:29

With_problem

19-Dec-06 16:29

No i am still stuck with same problem...do you have any clear idea how to call com dll function....i think my problem is that only....pls if you can help me....

Re: GetprocAddress not able to locate address

Hamid_RT19-Dec-06 18:25

Hamid_RT

19-Dec-06 18:25

Check name function and parameters(input/output) on dll that are same with when you call this file on your application

WhiteSky

Re: GetprocAddress not able to locate address

With_problem19-Dec-06 20:11

With_problem

19-Dec-06 20:11

see i have chkge the code still i am not able to locate my function.....i have tried all my best...pls help me...still it return null...and for function call setquotetodb is....unhandled exeption in apiocx
access violation.

code here

	HRESULT hresult;
	CLSID clsid;
	
	CoInitialize(NULL);
	hresult=CLSIDFromProgID(OLESTR("WartzODLCOM.DBAccess"),&clsid);
    _DBAccess *t;
    hresult=CoCreateInstance(clsid,NULL,CLSCTX_INPROC_SERVER,__uuidof(IDispatch ),(LPVOID *) &t);

	if(FAILED(hresult))
	{
	AfxMessageBox("Creation Failed");
	return;
	}

    else
	{
	MessageBox("success");
	}
    
	SessID=SessionId;
	CurrentRequestId=RequestId;
   
   	marketno.Format("%d",MarketNo);
	bid_d.Format("%c",BidDirection);
	ask_d.Format("%c",AskDirection);
	marketstate.Format("%d",MarketState);

       m_MainEdit= SessionId + "\t" + RequestId +"\t"+ marketno ; 
	m_MainEdit= Market + Bid  + bid_d +  Ask +ask_d High ;
	m_MainEdit=m_MainEdit + Low  + marketstate   + Timestamp ;

	UpdateData(FALSE);
	iLineCount=m_EditCtrl.GetLineCount();
 	m_EditCtrl.LineScroll(iLineCount);
    
   if(hresult != NULL)
   {
	   MessageBox("not null");
	USES_CONVERSION;
	BSTR bsTimeStamp = A2BSTR(Timestamp);
	BSTR bsMarket    = A2BSTR(Market);
	BSTR bsBid       = A2BSTR(Bid);
	BSTR bsAsk       = A2BSTR(Ask);
    
  // SetQuote(&bsTimeStamp,&MarketNo,&bsMarket,&bsAsk,&bsBid,&MarketState);
  t->setQuoteToDB(&bsTimeStamp,&MarketNo,&bsMarket,&bsAsk,&bsBid,&MarketState);
	SysFreeString(bsTimeStamp);
	SysFreeString(bsMarket);
	SysFreeString(bsBid);
	SysFreeString(bsAsk);
   }
   else
   {
	   MessageBox("null");
   }
//	FreeLibrary( hInstance );

	CoUninitialize();
 
	return;
	}

Unicode Support

himuskanhere18-Dec-06 17:27

himuskanhere

18-Dec-06 17:27

Hello Fiends...
I have create an separate DLL to Show/Display Unicode Text on Dialog.
But the problem is that I want to store that text pointer in non-unicode work space. How to do this...
I explain general floew of my project...
In main work-space, when user want to draw text Object, Unicode supported dll is called and text Object displayed on screen and control returns back to main work-space. Now I want to perform some string operation on that string pointer( i used LPSTR) and want to store it in ClistCtrl...Its not working properly..
plz help me How to support multi-language ...

Thanks in advance

Re: Unicode Support

Rajesh R Subramanian18-Dec-06 17:31

Rajesh R Subramanian

18-Dec-06 17:31

Do you mean to say that all the unicode stuff has to be handled by a dll and your interface to the user is separate? If you would like to display unicode characters in your interface program, then that too has to support unicode.

rahul.shendurnikar wrote:
plz help me How to support multi-language ...

define _UNICODE in your precompiled header file (stdafx.h)

Nobody can give you wiser advice than yourself. - Cicero
ப்ரம்மா

Re: Unicode Support

Naveen18-Dec-06 17:32

Naveen

18-Dec-06 17:32

I am not sure whether i understood ur question. Any way u can convert unciode string to mulitibyte using the following function

wcstombs or

WideCharToMultiByte

nave

Re: Unicode Support

himuskanhere18-Dec-06 18:45

himuskanhere

18-Dec-06 18:45

thanks brahmma and Nveen
hey my problem is that The unicode string is pointed by LPSTR pointer which is used in Non-unicode workspace and have to perform some string operation on it. But the unicode encoding is like '\0' after each character for English.
eg TEXT will store as 'T' '\0' 'E' '\0' 'X' '\0' 'T' in LPSTR.
and i cant add LPSTR in ClistCtrl Bcoz it treat it as only onecharacter T and '\0' as null terminated string.
thanks

Born To Code

Re: Unicode Support

Rajesh R Subramanian18-Dec-06 19:21

Rajesh R Subramanian

18-Dec-06 19:21

I am not understanding you. Do you want to display a unicode string in a list control? Please be precise to the point.

Nobody can give you wiser advice than yourself. - Cicero
ப்ரம்மா

Re: Unicode Support

himuskanhere18-Dec-06 19:44

himuskanhere

18-Dec-06 19:44

first of all thanks to look into my problem...
The Flow is-->
let lpTextPtr is of type LPSTR;

I write -->
lpTextPtr[0]='T';
lpTextPtr[1]='\0';
lpTextPtr[2]='e';
lpTextPtr[3]='\0';
lpTextPtr[4]='x';
lpTextPtr[5]='\0';
lpTextPtr[6]='t';
lpTextPtr[7]='\0';
lpTextPtr[8]='\0';
lpTextPtr[9]='\0';
and send lpTextPtr to Unicode Supported DLL.
Where lpTextPtr is assigned to EditBox of that unicode Dialog.(works fine)
In the Dialog(of DLL) I select Language the and write a any Text in editBox. The editBox's text is assigned to lpTextPtr.(works fine).
and control leaves DLL and backk to mai workspace.

Now Here I want to store lpTExtPtr(say in CListCtrl)...
it cant persist its value in nonUnicode invironment.
how to convert Unicode to normal string and then normal string back to Unicode is my problem...

Born To Code

Re: Unicode Support

Rajesh R Subramanian18-Dec-06 19:50

Rajesh R Subramanian

18-Dec-06 19:50

rahul.shendurnikar wrote:
how to convert Unicode to normal string and then normal string back to Unicode is my problem...

Have a look at the following functions in msdn.

WideCharToMultiByte()
MultiByteToWideChar()

Nobody can give you wiser advice than yourself. - Cicero
ப்ரம்மா

GetCurrentDirectory() any soln for this ?

vipin_nvk18-Dec-06 17:15

vipin_nvk

18-Dec-06 17:15

Hello

I've been using the API GetCurrentDirectory() to retrieve the current working directory of my application. The code snippet is below:

char szPath[100];
GetCurrentDirectory(sizeof(szPath),szPath);

The above function works fine if the path of the current directory is 100 chars. But what if the path of the current directory is more that that ? My app would crash rite ?

So is there any way to make the size of szPath dynamic, such that from wherever our app gets runned (watever be the path length) the app shouldnt crash.

Thanx

Re: GetCurrentDirectory() any soln for this ?

murali_utr18-Dec-06 17:19

murali_utr

18-Dec-06 17:19

try with this one.

char szPath[MAX_PATH];
GetCurrentDirectory(sizeof(szPath),szPath);

Have A Nice Day!
Murali.M

Re: GetCurrentDirectory() any soln for this ?

Naveen18-Dec-06 17:21

Naveen

18-Dec-06 17:21

in the NTFS format, the maximum length of a file name or directory name can be up to 255 characters. So u can use char szPath[256];

or u can use

char szPath[MAX_PATH];// MAX_PATH is declared in windef.h

nave

Re: GetCurrentDirectory() any soln for this ?

vipin_nvk18-Dec-06 18:04

vipin_nvk

18-Dec-06 18:04

Do you mean to say that a file name / directory name (starting frm its root) cannot be more than 256 chars ? What if its more than 256 chars ?

Thanx

Re: GetCurrentDirectory() any soln for this ?

prasad_som18-Dec-06 18:08

prasad_som

18-Dec-06 18:08

vipin_nvk wrote:
if its more than 256 chars ?

No, it cant?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: GetCurrentDirectory() any soln for this ?

Naveen18-Dec-06 18:18

Naveen

18-Dec-06 18:18

no no, i mean length of a single file or folder cannot be more tha 255 charachters. u can have path of upto 32768 unicode characters.

I ur case length can exceed MAX_PATH.. my mistake Frown | :(

nave

Re: GetCurrentDirectory() any soln for this ?

prasad_som18-Dec-06 18:22

prasad_som

18-Dec-06 18:22

Naveen R wrote:
u can have path of upto 32768 unicode characters.

No , You can't. It includes full path. It can be limited up to 256 chars.

Naveen R wrote:
I ur case length can exceed MAX_PATH

Naveen R wrote:
.. my mistake

No, you aren't.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: GetCurrentDirectory() any soln for this ?

Naveen18-Dec-06 18:28

Naveen

18-Dec-06 18:28

prasad_som wrote:
No, you aren't.

consider the following case.

He created a folder having name of 200 chatacters. Inside that folder he create another folder with 200 chatacters. then he put the exe in that folder and executed. The MAX_PATH wont work na? Cool | :cool:

nave

Re: GetCurrentDirectory() any soln for this ?

prasad_som18-Dec-06 18:34

prasad_som

18-Dec-06 18:34

Naveen R wrote:
Inside that folder he create another folder with 200 chatacters

He can't. He can create folder upto 55 characters then.(i'm assuming its on root folder). In other words

c:\[200 chars]\[then this name can be upto 55 chars]\[still there are some chars left to reach 256, then file/folder  can be created otherwise not]

.
So in any case, full path name will not exceed _MAX_PATH.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: GetCurrentDirectory() any soln for this ?

Naveen18-Dec-06 18:49

Naveen

18-Dec-06 18:49

i checked.. u r right Smile | :)

nave

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