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Our MFC Server application send huge real time data of size 900000bytes using CSocket (TCP/IP Sockets) via serialization continuously every 2 second to the MFC Client.
But After a few minutes, the application gets slowed down.
Is there any specific ways or methods of send/receive huge data continuosly via Csocket.
How to send the big data every interval in a better way.
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Increase Baudrate of CSocket and reduce data chunk size while communication.. big data if reduced to small data chunks with sequence added in the data packet may help in faster data transfer across systems.. look in windows provided CSocket for more info
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Can i get more information in this regard...reducing to small data chunks with sequence added in the data packet.
How many data chunks could be done for 900000bytes of data.
Please give me the steps or some example and detail.
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create a struct data structure similar to:
struct myPacket{
int uwSeq;// sequencing starts from 1 upto 879
int maxSeqCount;// when this reaches 879 reaset to 1
char myData[1024];//Small Chunk
unsigned int uwcrcData;//CRC of uwSeq,myData
}stSmallChunk;
send stSmallChunk data packet and validate at other end using CRC recieved seqs.
FYI: 1024*879 small chunks =900096 Bytes
-Shyam Kodase
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reduce time interval to 500ms interval upto 4 subiteration in 1st iteration.. (which in effect will result in 2s interval) and after 4th subiteration append all data at client side.
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Hi,
I am looking for an article about dialing a phone number directly from my database (i.e. as in Call Centre), Via CPP Code. I do not seem to be able to filter the article count down to less than 3700, mostly altogether unrelated. Anyone a Hint or Idea?
Thanks and Regards 
Bram van Kampen
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Is this a desktop or a mobile app?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Hi Dave,
It is an MFC42/CPP Desktop Application I want to Auto Dial from, to establish a Voice Connection. I.e.: I want staff to contact selected customers, via de Phone Number we have on our DB. As a Laundrette, we have an issue with customers forgetting they left stuff in. I'm writing an MFC Application for staff to deal with this during quiet times. Automatic dialling helps to prevent mis-dials, and protects our phone bill against misuse.
Thanks + Regards, 
Bram van Kampen
modified 29-Apr-16 18:45pm.
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Bram van Kampen wrote: It is an MFC42/CPP Desktop Application...
And how is it connected to the phone?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Hi David,
Thanks for your reply.
I am planning to connect Via a "RealTech" Dial up Modem Card, or Equivalent. All my XP Computers have one, or something similar, by a different manufacturer. I also harvested about half a dozen. The Installation software is typically part of WinXP.
The XP Default installation is that specific and unspecified features may not be available. However, I seek only Voice Contact, on an Out Dialling only Connection.
I have also a number of Installation disks for older Real Tech Modems which I bought in the past. I suppose that any and all of them can do a basic Function, Dialling out, and thereafter managing a Voice Based conversation. All Computers we currently have, have also a form of sound processing card.(Very Basic in most cases) I assume that this can be used to get the Voice Aspect realised for a phone connection.
Al I am ultimately interested in is, getting an outgoing Voice Connection.
We have NO requirement at all, to deal with in coming calls.
Thanks for your Reply,
Looking forward to your response
Bram van Kampen
modified 1-May-16 20:46pm.
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Bram van Kampen wrote:
I am planning to connect Via a "RealTech" Dial up Modem Card, or Equivalent.
Okay, you'll need to look into connecting to the cards via the CreateFile("COM3", ...) function. Then you'll send the appropriate AT commands to the open port.
Also check out the TAPI.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
modified 3-May-16 9:08am.
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Thanks David, for your Reply,
But I was really looking for a good Article about the subject, on CP or else were. Even the title of a Good Book will do.
Thanks Again,
Regards,
Bram.
Bram van Kampen
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Note.: I replied to this earlier, but id does not appear to have landed.
Here we go again...
Hi Dave,
Thanks for your reply, but what I was really looking for was a good article about this on CP or elsewhere, or, even a book will do. Maybe You know where to find same.
Thanks again,
Regards, :}
Bram van Kampen
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Hi Dave,
I Think we are both rumbled by gremlins. My Post was somehow split in two by the CodeProject Server.
Let us Discard One Thread, I Propose This One!
Otherwise: My Reply to This One is:
You must be under pressure, but, I know how that feels. Answered this question before in this thread, However,it is a Desktop Task, in MFC42. I am not looking for a Solution, but for an article(hopefully Old, so that it appreciates the limitations of MFc42) in CodeProject, or elsewhere. Even a Title of a book will do.
Thanks + Regards
Bram van Kampen
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Bram van Kampen wrote: I am not looking for a Solution, but for an article(hopefully Old, so that it appreciates the limitations of MFc42) in CodeProject...
Did you try here?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Thanks David,
It is a Good Start!
(Mental Block I had, not looking for 'Modems' in the first place!), as you know, that's how it goes.
However, it covers, apart from a sprinkling of C or CPP, a Lot of CE, C#, etc, which have their own libraries, etc, and hence are instructive, but not very useful. For Instance, "Phone.Lib" is not a component of MFC42.
All I need to do is the Dialling, and the Channelling of the connection to the Sound System, and hanging up, after ending the call.
I'm going to try for now something called "RasDial.exe" and see how I get on with it. Hopefully I can fool it in not looking for a Phonebook Entry, or stopping it from trying to make an Internet Connection.
I have also bought a £6.00 USB Dialup Modem which comes with a CD. Hopefully the CD contains something useful. I live in hope. Even if it fails, the cost is less than a packet of cigs, and, I still have the Modem.
Hope if all else fails to be able to hang a Head Set and Mike to the 'Phone' Output, and, hope the Modem can do the Dialling via the Line Socket.
May need to set to Pulse, and a switch to isolate the head set, (I know how POTS works) but, for now hope we can make it work without having to resort to this.
Worth Six Pound to try it, though, even if it does not work!
Thanks, and, I'll keep you Posted, but, remember, I'm on my own, and have to resolve many issues, all by myself. If I get an Intractable Problem in One Place, I put it aside, for dealing with, and whilst waiting, tackle something else. That keeps the entire front moving.
Kind Regards,and thanks again
Bram van Kampen
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Hi guys,
In my application I had a CTabCtrl object & it has 2 tab window. I want to navigate between these tabs window via Ctrl + TAB.
Currently i can do the same in preTranslateMsg i.e. to look for keydown messages & filter it out ctrl + tab key out of it & calling setcusel().
I need to know if there is any other way that I can implement the same functionality.
Thanks,
Amrit
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I'm curious why you don't use a CPropertySheet with two CPropertyPage objects instead. Navigation would be automatically handled by the framework.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Hi
I have a CDialog which I created on the heap along the way I create a Richedit and a number of other controls
When the users hits X in the right hand corner I Destroy the CDialog do I have to DestroyWindow the rich edit and child controls as well
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Sorry  Didn't see this
Quote: The function first destroys child or owned windows, and then it destroys the parent or owner window
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No, Richard gave you the link all child windows are automatically disposed.
Your only responsibility is to cleanup any memory allocation, handles etc you specifically created. You do that by intercepting the WM_DESTROY message and cleaning up there. WM_DESTROY is sent just before the window is deleted but while the window is actually still valid.
Typically you create things in the WM_CREATE and you dispose of it in the WM_DESTROY.
In vino veritas
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So If I do a "new" for an object which I later create a child or my case rich edit I have to delete the object after the DestroyWindow which destroys the Parent CDialog and child controls
Thanks
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Yes, if you are allocating memory using 'new' to your RichEdit, then yes you have to release it. But you have to do it before your parent window (in this case your CDialog) is destroyed.
Override OnDestroy (WM_DESTROY) and destroy your RichEdit followed by 'delete' (to release heap memory) and then call the CDialog::OnDestroy().
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