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Thanks for the reply.
Your article is a web client, which writes POST requests (presumably). However, I am after web server code, which reads POST requests.
Thanks,
Neil Humphreys.
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Sorry, I should have ready your post more closely before replying. Meanwhile, will this[^] collection of classes help?
/ravi
My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com
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VC++.net : I have a problem, maybe someone can help me.
I try tu make a DLL to use with a client (Cocreate ME10).
I created a Regular DLL with MFC statically linked.
Then i created a CDialog with a CComboBox and a CListbox what i like
to fill with Items from a Database.
In the CDialog Class i created a Control variabel to the CCombobox:
CComboBox m_ctlCbNames;
To make work my modeless Dialog i use :
BOOL WINAPI FilterDllMsg(LPMSG lpMsg)
{
AFX_MANAGE_STATE(AfxGetStaticModuleState());
TRY
{
return AfxGetThread()->PreTranslateMessage(lpMsg);
}
END_TRY
return FALSE;
}
If i load the DLL in my Client application the Dialog appears without
any Problems.
But if i try to add a string to the Combobox control variabel :
m_ctlCbNames.AddString(_T("Test"));
or
m_ctlCbNames.SetCurSel(0);
then i get the following Error when i call my function in the DLL from
my client program :
Debug Assertion Failed !
...vs70builds\...\afxwin2.inl
Line757
alfred.furer@skynet.be
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I made a very nice duplicate file finding utility for myself a few months ago.
Now I just wanna share it with you guys (altough I am not very sure who would ever require such a tool ! Anyone ?)
However, I just want to add some more features to the basic framework.
The basic engine just creates a hash table of filenames which are kind of open chained using linked list of filenames which have the same MD5/SHA/etc digest (that is, are binary equal)
It currently finds out any duplicate file(s) in/on your directory/drive and deletes all but the file with the most recent timestamp.
That's all I wanted, but I understand that it's the least somebody who seriously wants to use such tool would want !
So please, let me know who might want it, and what feature(s) should I add to it....
Given enough takers, I might write up a nice article to go along with the source code.
In the meanwhile, keep the feature requests rolling in...
Regards
Subhobroto Sinha
http://www.geocities.com/subhobrotosinha
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Hello Freinds,
I want to transfere one structure from client to server. structure contains one String and INT data, INT is the length of that string.
I am trying send(); function of CSocket to transfere the structure but I am getting some garbage at server end and missing my strings address.
Can anyone pl's help me.
I have dought that the function I am using may not be currect.
Thanks.
Dinesh.
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why don't you directly transfered the string to the server!,as recv winsock api returnd with total length of data recieved.
something like this way, i am giving win32 based code
Client End:
char szString="Codeproject";
UINT nszLen=strlen(szString)+1;
send(hSendingSocket,szString,nszLen,0);
Server End
char szString[1024];
int nTotalBufferLen=1023;
int nRecv=recv(hRecvingSocket,szString,nTotalBufferLen,0);
szString[nRecv]=NULL;
"I Think this Will Help"
[Vote One Here,.....]
<h5
alok gupta="" <br=""> visit me at http://www.thisisalok.tk
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Dinesh, I recommend using CSocketFile and CArchive . They work beautifully!
/ravi
My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com
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Thanks Ravi,
I will try this option.
Dinesh.
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Hi friend,
Maybe the problem is that, if you are using TCP/IP protocol, the structure is divided as multiple packets on the network, so you should first send the size of the structure (string + int), then use recv() and check that the number of bytes received are equal to the size of the structure before using the structure, or USE UDP/IP.
something like this:
<br />
int nRecv=0;<br />
<br />
while(nRecv<SizeOfExpectedData)<br />
nRecv+=recv(....);
//now i am sure i received the whole message, not just few packets
//now use the structure
Mohammad Gdeisat
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Hi Mohammad,
Thanks for the help, I will try this option.
Regards,
Dinesh.
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Hi All,
Has anyone of u developed a class which can Transfer a File across LAN.
I have a client Server Application which can Send and Receive messages between them. Now i want to implement the File Transfer.
Looking forward to ur valuable Suggestions..
Thanks.
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Hi
have you tried to use the API function defined in Winsock2.h:
BOOL TransmitFile( <br />
SOCKET hSocket,
HANDLE hFile,
DWORD nNumberOfBytesToWrite,
DWORD nNumberOfBytesPerSend,
LPOVERLAPPED lpOverlapped,
LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers,
DWORD dwFlags <br />
);
it will work faster than any implemented function or class, because it works in kernel mode rather than user mode.
Regards,
Mohammad Gdeisat
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Mohammad A Gdeisat wrote:
BOOL TransmitFile(
Hello Mohammad , i never use the TransmitFile api, i just want to know TransmitFile is use to transmit file, from which api i will recv that File.
thanks
"I Think this Will Help"
[Vote One Here,.....]
<h5
alok="" gupta="" <br=""> visit me at http://www.thisisalok.tk
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hi,
I really have not used this function, but as a sense, i think that the other end should use recv() with a connected socket on appropriate IP and port number.
anyway, this is all i know about it. you can still search for examples on TransmitFile
Regards,
Mohammad Gdeisat
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Hello there,
I'm using Visual C++ 6 with Platform SDK and trying to create a imaging program. The program is simple, where i the user can draw lines on a TIFF image.
I'm using GDI+ for this purpose, but having one problem. The problem is that GDI+ just cannot draw on gray(8-bit)/black & white TIFF images or BMP for that matter. I dont know why. A simple test code is given below,
void CGDIPlusDlg::OnButton8() <br />
{<br />
CDC *pDC=this->GetDC();<br />
HDC hdc=pDC->GetSafeHdc();<br />
<br />
Image img(L"c:\\mspaint.tif");<br />
RectF r(0, 0, 100, 100);<br />
<br />
Graphics gr(hdc);<br />
RectF destRect(0, 0, 100, 100);<br />
<br />
gr.DrawImage(&img,destRect);<br />
<br />
Pen blackPen(Color(255, 0, 0, 0), 3);<br />
<br />
PointF point1(0, 0);<br />
PointF point2(100.0f, 100.0f);<br />
<br />
Graphics gr2(&img);<br />
gr2.DrawLine(&blackPen,point1,point2);<br />
<br />
RectF destRect2(100, 0, 100, 100);<br />
gr.DrawImage(&img,destRect2);<br />
}
The image is created using MSPaint. Create a 100x100 image, draw something, and save as TIF. Save again by changing the image depth to black & white from the Image->Attributes menu.
The program supposed to draw a diagonal line across the image, but it doest for the black&white version of tif.
So, my problem is how to overcome this? Or, how can i programmatically convert a BW TIFF to color and work on it using GDI+?
Oh yeah, can anyone try if this code works fine in C# or managed C++?
Thanks,
Usman
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I have inherited a class from CFileDialog.
OnTypeChange has been overridden with the purpose of changing the direcory when the user changes the filter list.
How do I actually change the current directory?
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What is the event message when the user clicks the x in the system menu.
Background:
I have disabled OnCancel() and OnOK() so that in my dialog-based app the esc and return keys don't close the app.
I have the OnFileExit (when user selects file exit) method calling EndDialog(IDOK) directly. What function is called when the user clicks on the x?
Long and short of it is I dont want keyboard commands (other than alt navigation) to close the app.
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JKallen wrote:
What function is called when the user clicks on the x?
Have you looked at OnClose() ?
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
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Yes. The problem is esc and return call OnOK and OnCancel, so doing anything to OnClose wont change anything.
I think the problem is that clicking the x calls OnCancel (or OnOK doesnt matter which for my purposes).
I need a way to differentiate between hitting the return key and the esc key from clicking the x or selecting file close.
I dont want to get into Virtual Keys right now. Im not at that stage in writing this application yet. I try to write applications in phases. It makes things much simpler when I add functionality in groups.
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JKallen wrote:
I need a way to differentiate between hitting the return key and the esc key from clicking the x or selecting file close.
Then implement the following handlers:
OnOK()
OnCancel()
OnClose()
DestroyWindow() and note when each are called (e.g., breakpoint, message box).
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
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The message WM_SYSCOMMAND , with the command id SC_CLOSE . Spy++ is your friend.
However, you would be better off either disabling or hiding the [X] rather than leaving it visible and making it non-functional. This sort of thing is confusing and frustrating to users.
To hide: remove the WS_SYSMENU style from the window.
To disable: retrieve the system menu by calling GetSystemMenu() , then disable and gray the SC_CLOSE option by calling EnableMenuItem() .
You should then disable the command (and also the Alt+F4 mnemonic)by intercepting the WM_SYSCOMMAND message and avoiding the default behavior if the command ID is SC_CLOSE .
Shog9
I'm not the Jack of Diamonds... I'm not the six of spades.
I don't know what you thought; I'm not your astronaut...
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OK That worked. I aggree with respect to irritating users.
What I have done (which works) in case you are interested is
1) disabled the OnOK and OnCancel to address the user hitting the esc and return keys
2) created an event handler to deal with user clicking file exit that calls EndDialog(IDOK)
3) edited the OnSysCommand function so that if SC_CLOSE is the message, it calls EndDialog(IDOK) as well
Exactly the result I was looking for.
Thanks.
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