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Hi, I defined a CSplitterWnd variable in my CMainFrame class of a SDI project and want to access it from my CDocument class so I can have a pointer to different views that I have so I can post messages of Update and ... to each view according to cicumstances. I tried to get a pointer to the main frame by AfxGetMainWnd()->GetParentFrame() but the pointer is invalid and causes debug assertion, I think because when I want to access this pointer on OnNewDocument function still there is no main frame. so what is the solution how can I have a pointer to CMainFrame in CDocument so I can update different views from CDocument? or should I change the strategy and update view messages should come from other places. the application receives data from serial port and upon reception of some data views should be updated. thank you
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Use this to get a pointer to the mainframe window from anywhere in your application:
CMainFrame* pMainFrame = (CMainFrame *) AfxGetMainWnd(); /ravi
My new year's resolution: 2048 x 1536
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ravib@ravib.com
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Hi,
I am looking for an API that will return the 'group' to which the currently logged in user belongs.
Or is it a way to know if the currently logged in user belongs to a paricular user group?
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Hi there,
Do you mean you want to list the groups of the user running your program?
I think the process is (sorry I don't have any example code):
ImpersonateSelf() - to generate an access token for the current process
OpenThreadToken() - to open the access token
GetTokenInformation() specifying TokenPrimaryGroup or TokenGroup as one of the parameters - to get a data structure with group information
Then walk the structure from this last function, looking for the group SID or SIDs.
Finally, to convert a SID to an actual text group name, use:
LookupAccountSid()
Hope this is a pointer in the right direction !
Thanks,
Neil Humphreys.
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Hi,
I am looking for some neat code to process HTTP Post request content data - i.e. tidy up all those '+'s and '%'s, and split the POST content string into variable name / variable value pairs. I could try this myself, but I do hate reinventing wheels ... can anyone suggest some code to do this ?
Thanks,
Neil Humphreys.
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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
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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
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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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