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I am sending login credentials through ActiveX Control developed in VC++ 6.0 to Server side which is developed in Delphi
//Client side struct in VC++ 6.0
typedef struct
{
char User[41];
char Password[41];
char ClientVersion[41];
char EndCode[2];
}TNetConnectCheck;
//Server side struct in Delphi6
TNetConnectCheck = record
UserName : string[40];
Password : string[40];
ClientVersion : String[40]; // Added by Ravi on : 03/08/2006
EndCode : array[0..1] of Char;
end;
but, I am getting some junk characters in the strings at serverside eg. User name like 'CrazyToLearn#0...#0'
I want to send the packet which is having the length 125 to server with exact 'CrazyToLearn' not with any padding 0 or junk characters.
I tried all the trims dynamic char array but cant solve the problem, Please instant help will be really appriciated...
THANX
CraZyToLearn
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Please consider the statement I forgot to mention in the post is : "I dont have to change code at server side,whatever we want to modify , its only at client side"
 CraZyToLearn
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I'm no Delphinium but as a general approach you need to determine the byte count sizes of the types involved e.g. sizeof(TNetConnectCheck) and make sure they match up. You might also want to control the data type alignment on the client side, see #pragma push pack : 1 (That syntax is wrong so you'll need to search ) or __align your client side data type.
You also need to check whether the string types on the Delphi side are NULL terminated or not and setup the client side data appropriately.
Finally you need to check the calling convention, e.g. __cdecl, __stdcall or Delphi equivalents of the actual call between the two modules and make sure both sides are expecting the same behaviour in terms of stack cleanup. I suspect this last part is already OK or you would not be getting as close as you are but it does no harm to check and be sure you understand what's happening under the hood.
Nothing is exactly what it seems but everything with seems can be unpicked.
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Thanks Matthew,
Still I am trying.
CraZyToLearn
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gnanapaul wrote: what is the procedure for that?
Not posting twice within an hour or two? (You can modify a post....)
Iain.
Iain Clarke appearing in spite of being begged not to by CPallini.
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sorry... Iain Clarke
i was in trouble.
paulraj
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Hello all
Is there any functionality by which we can know the sizeof the graphics memory?
Thanks in advance
Manish Patel.
B.E. - Information Technology.
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hi...
i have to use memorystream in mfc.
should i add any header fiile?'
other wise what is the procedure?
can anyone help me?
paulraj
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I don't remember any MFC class called memorystream.
Maybe a compination of CArchive and CMemFile?
And any MFC project has enough header information in it to use those.
Beyond that, I can't help.
Iain.
Iain Clarke appearing in spite of being begged not to by CPallini.
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hi....
i need to convert a image file into stream.
so that only i asked.
is there any another method for that?
please help me.
paulraj
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It was jigsaw game app, and I wanted to be able to load jpgs, bmps, gifs, tifs, pngs, etc.
Looking at my code now, I'm a little unsure of casting the result from CoTaskMemAlloc to an HGLOBAL, but it seemed to work fine!
Anyway, take what you can, and avoid any bad habits.
Iain.
HBITMAP CJigSawDoc::JigLoadPicture (CFile *f, CSize szImage)
{
IPicture *iPic = NULL;
DWORD dwFileSize, dwRead;
dwFileSize = f->GetLength ();
void *pBuffer = ::CoTaskMemAlloc (dwFileSize);
if (NULL == pBuffer)
return NULL;
dwRead = f->Read (pBuffer, dwFileSize);
if (dwRead != dwFileSize)
return NULL;
IStream *iStream = NULL;
if (FAILED(::CreateStreamOnHGlobal ((HGLOBAL)pBuffer, FALSE, &iStream)))
return NULL;
::OleLoadPicture(iStream, 0, FALSE, IID_IPicture, (LPVOID*)&iPic);
iStream->Release ();
::CoTaskMemFree (pBuffer);
if (iPic == NULL)
return NULL;
CWindowDC dc (CWnd::FromHandle (::GetDesktopWindow ()));
HBITMAP hBitmap = NULL, hOldBitmap = NULL;
HDC hMemDC = CreateCompatibleDC (dc);
CSize pxSz, hmSz, szScreen (::GetSystemMetrics (SM_CXFULLSCREEN), ::GetSystemMetrics (SM_CYFULLSCREEN));
iPic->get_Width (&hmSz.cx);
iPic->get_Height(&hmSz.cy);
AtlHiMetricToPixel(&hmSz, &pxSz);
szScreen.cx = (int)Interpolate (0, szScreen.cx, 0.9, 1.0);
szScreen.cy = (int)Interpolate (0, szScreen.cy, 0.9, 1.0);
if (pxSz.cx > szScreen.cx)
{
pxSz.cy = (int)Interpolate (0, pxSz.cy, szScreen.cx, pxSz.cx);
pxSz.cx = szScreen.cx;
}
if (pxSz.cy > szScreen.cy)
{
pxSz.cx = (int)Interpolate (0, pxSz.cx, szScreen.cy, pxSz.cy);
pxSz.cy = szScreen.cy;
}
hBitmap = ::CreateCompatibleBitmap (dc, pxSz.cx, pxSz.cy);
hOldBitmap = (HBITMAP) SelectObject (hMemDC, hBitmap);
iPic->Render (hMemDC, 0,pxSz.cy - 1, pxSz.cx, -pxSz.cy, 0,0, hmSz.cx, hmSz.cy, NULL);
iPic->Release ();
iPic = NULL;
SelectObject (hMemDC, hOldBitmap);
return hBitmap;
}
Iain Clarke appearing in spite of being begged not to by CPallini.
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gnanapaul wrote: i need to convert a image file into stream.
fstream ?, fstream fs("Image.img", ios::in ...); makes file to stream.
if you want to keep in memory, as Iain already specified, use CMemFile() to store image data and CArchive provides the redirection stream like operators (<< , >>)
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thanks for your reply.
should i use any header file?
paulraj
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#include <fstream> for fstream class.
And if you are using MFC, CMemFile, CArchive don't require additional header i think.
I am unsure, that you are refering stream as in C++ iostream programming, it seems.
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In addition to the other replies...
CMemFile is a memory stream. You can use it without using CArchive.
Just create A CMemFile object, open the image file (binary mode), read chunks of bytes from
the image file and write them to the CMemFile. When you're done you can detach the
BYTE array from the CMemfile if you need to.
CMemFile is declared through afx.h, which you should have included already.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Is this of any help?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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A .NET Framework class in Visual C++/MFC forum? You're cheating, David.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Hi to All ..
Does visual studio 2005 is worked for windows Vista ..?
PLEASE suggest me
*****THANKS N ADVANCE****
Mathen.K
(I WILL TRY MY LEVEL BEST )
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Are you asking if you could develop applications for Windows Vista using Visual Studio 2005? If so, the answer is yes. It does not matter which version of Visual Studio you are using for your development. But there are certain guidelines which you must follow in order to develop applications to be compatible with Vista.
Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP
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rowdy_vc++ wrote: Does visual studio 2005 is worked for windows Vista ..?
Mine is working
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in my system its showing some DLL missing then i was add that DLLs and then its executed but when i click that event suddenly it was terminated ..wht was the problem it is ?
But in Windows XP its worked good...
*****THANKS N ADVANCE****
Mathen.K
(I WILL TRY MY LEVEL BEST )
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probably installation problem. I need to assume here, it is genuine version  .
rowdy_vc++ wrote: its showing some DLL missing then i was add that DLLs
thats too much, how Microsoft forget it to add in the installation. 
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Rajkumar R wrote: thats too much, how Microsoft forget it to add in the installation.
He might compile it in Debug mode, and took the binary to another PC (Vista).
Maxwell Chen
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