Re: Can the path to a file be determined from a print job? - C / C++ / MFC Discussion Boards

Ergo23-Jun-05 6:03

23-Jun-05 6:03

Hello!

Question about UDP connections.
Is there a way to determine the destination port/address from an(y) active open UDP socket on my system?
Maybe a workaround or simple solution without using winpcap.dll. Big Grin | :-D

Re: UDP connections

Scozturk23-Jun-05 8:29

Scozturk

23-Jun-05 8:29

I'm not sure but google on raw sockets I think you will find some info...

Well... I am a beginner ...

Re: UDP connections

Trollslayer23-Jun-05 8:36

Trollslayer

23-Jun-05 8:36

MSDN[^] is a good resource as is Internet & Network programming[^].

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

TrackMouseEvent doesn't work!

Anonymous23-Jun-05 5:56

Anonymous

23-Jun-05 5:56

Hello,

For some reason when trying to compile, I keep getting error that TrackMouseEvent is an undeclared identifier. The TRACKMOUSEEVENT struct, however, compiles without problem. I have user32.lib imported in my project settings and I have the dll, and I have winuser.h included in my project (along with windows.h). I am running the MS platform SDK from Feb 2003.

Help?? What could be wrong?

Thank you

Re: TrackMouseEvent doesn't work!

Blake Miller23-Jun-05 6:31

Blake Miller

23-Jun-05 6:31

Got to command prompt.

Dump the exports from user32.dll and see if TrackMouseEvent is in there.
DumpBin /Exports User32.Dll

If not, then heed this warning and adjust your code and project accordingly:

Note The _TrackMouseEvent function calls TrackMouseEvent if it exists, otherwise _TrackMouseEvent emulates TrackMouseEvent. The _TrackMouseEvent function is in commctrl.h and is exported by COMCTRL32.DLL.

CreateDispatch fails

Jochen Tuemmers23-Jun-05 5:46

Jochen Tuemmers

23-Jun-05 5:46

First of all I must admit, I am not a very experienced COM programmer.

But I managed to create my own COM automation server (exe). It runs well and can be used by clients on my development system. Now I am trying to package the server for installation on other systems.

I think I have properly created registry entries for CLSIDs etc. - at least to the best of my knowledge. Nevertheless, when a client calls "CreateDispatch" the instantiation of the server application fails. CreateDispatch returns "Server execution failed." When looking at the event viewer, I see the following message:

Source: DCOM
Category: None
Type: Error
EventID: 10010
Description: The server {CLSID} did not register with DCOM within the required timeout.

Any ideas? Am I missing something?

Comments greatly appreciated.

Jochen

Can the path to a file be determined from a print job?

the_grip23-Jun-05 5:32

the_grip

23-Jun-05 5:32

Hi all,

i am working on an application that interacts with a print driver. However, when i use the Win32 API calls (EnumJobs, etc.) to determine what file was printed and where it was located, i can only get the file name (not the path). In some cases, i will need to do some examination of the contents of a file - so i need the path. Does anyone know how to obtain such a thing (i fear it doesn't exist)?

Re: Can the path to a file be determined from a print job?

Jose Lamas Rios23-Jun-05 15:41

Jose Lamas Rios

23-Jun-05 15:41

the_grip wrote:
Can the path to a file be determined from a print job?

I don't think so. When you print a file, you do so with some application that reads the file, make API calls to create a print document with some name, draw some content in it, and ends the operation. You then can see the print queue in the operating system, but the OS knows nothing about whether what it has to print was based on a file, its location, or its content. The print document may have the same name as some file, but for the OS it's just a name and nothing else.

--
jlr
http://jlamas.blogspot.com/[^]

Couldn't bool be better in C++??

tom_dx23-Jun-05 5:23

tom_dx

23-Jun-05 5:23

can you just write a class to manipulate bits in an int, so it would contain 32 bool values instead of wasting that one number for 1 or a char for 8 values or double for 64 diff. values, wouldn't this be a better solution?

IM PROUD TO BE A GMAIL;

Re: Couldn't bool be better in C++??

Maximilien23-Jun-05 5:37

Maximilien

23-Jun-05 5:37

no.

at best it's confusing.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Couldn't bool be better in C++??

C^hris L^osinger23-Jun-05 5:39

C^hris L^osinger

23-Jun-05 5:39

tom_dx wrote:
wouldn't this be a better solution?

not really. it would be a lot slower, since CPUs can't access bits directly.

Cleek | Image Toolkits | Thumbnail maker

Re: Couldn't bool be better in C++??

toxcct23-Jun-05 5:48

toxcct

23-Jun-05 5:48

why don't you do it yourself ? is it so hard ?

look at this[^]...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: Couldn't bool be better in C++??

basementman23-Jun-05 6:41

basementman

23-Jun-05 6:41

Back in the old days of C when every byte of memory counted, we used to define a structure of bits so that it would be clearly referenced in code and only use a byte of memory. So, to declare six flags in a byte, you would define a struct like this:

typedef struct _tagBitFlags
{
  unsigned char Flag1 : 1;
  unsigned char Flag2 : 1;
  unsigned char Flag3 : 1;
  unsigned char Flag4 : 1;
  unsigned char Flag5 : 1;
  unsigned char Flag6 : 1;
  unsigned char unused : 2;
} BitFlags;

Then to access the flags, you could write something like this:

if (BitFlags.Flag1)
  printf("Flag1 is set");
else
  printf("Flag1 is cleared");

Note that the value you can set a flag to must be in the bit range that the structure member can hold. This means that if, as in the above example, Flag1 is declared as one bit, it can only hold the values 0 and 1, whereas unused is declared as two bits and can be assigned the values 0, 1, 2, or 3.

Hope this doesn't date me too badly.... Unsure | :~

onwards and upwards...

Re: Couldn't bool be better in C++??

Blake Miller23-Jun-05 7:44

Blake Miller

23-Jun-05 7:44

Not at all. I am glad you typed it in. Saved me some work Unsure | :~

Re: Couldn't bool be better in C++??

basementman23-Jun-05 7:49

basementman

23-Jun-05 7:49

Glad to be of service... and glad that I can remember back that far... D'Oh! | :doh:

onwards and upwards...

Re: Couldn't bool be better in C++??

Bob Stanneveld23-Jun-05 7:24

Bob Stanneveld

23-Jun-05 7:24

Why don't you try the bitset from STL[^]?

You can easely do the following things:

typedef std::bitset<8> Flag8;
typedef std::bitset<11> Flag11;
// etc..

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Base class initialization problem

pesho293223-Jun-05 5:09

pesho2932

23-Jun-05 5:09

Imagine the following situation:

class A<br />
{<br />
public:<br />
  A(int x, int y) {...}<br />
};<br />
<br />
int func1()<br />
{<br />
  return ...; // every time returns different int<br />
}<br />
<br />
int func2(int arg)<br />
{<br />
   return arg / 2; // for example<br />
}

You can not change the above. But you need to inherit from A and you want to pass func1() as the first argument and func2 of the first argument as the second argument to the constructor of A:

class B : public A<br />
{<br />
public:<br />
  B():A(func1(), func2(/*get the first argument here somehow*/))<br />
  {<br />
  } <br />
};

What do you think is the best way to do this? A possible solution is:

class B : public A<br />
{<br />
protected:<br />
  B(int x, int y):A(x, y))<br />
  {<br />
  } <br />
<br />
public:<br />
  static B create()<br />
  {<br />
    int f1 = func1();<br />
    return B(f1, func2(f1));<br />
  }<br />
};

However, this would obstruct future inheritance from B.

Re: Base class initialization problem

Jose Lamas Rios23-Jun-05 5:34

Jose Lamas Rios

23-Jun-05 5:34

How about the following?

<br />
class A2 : public A<br />
{<br />
protected:<br />
   A2(int arg) : A(arg, func2(arg))<br />
   {<br />
   }<br />
};<br />
<br />
class B : public A2<br />
{<br />
public:<br />
   B() : A2(func1())<br />
   {<br />
   }<br />
};<br />

Another possibility:

<br />
class B : public A<br />
{<br />
public:<br />
   B(int x, int y) : A(x,y)<br />
   {<br />
   }<br />
<br />
   B()<br />
   {<br />
      int f1 = func1();<br />
      B aux(f1, func2(f1));<br />
      *this = aux;<br />
   }<br />
};<br />

--
jlr
http://jlamas.blogspot.com/[^]

Re: Base class initialization problem

pesho293223-Jun-05 21:29

pesho2932

23-Jun-05 21:29

The first one is nice indeed.

File Properties

Rage23-Jun-05 4:22

Rage

23-Jun-05 4:22

Hi CPians,

I would like to change programmatically the version information of a file (e.r. the ones you get when you open the properties dialog of a file in the explorer). This is for adding revision information automatically.

I know how to access this data (GetFileVersionInfo,GetFileVersionInfoSize and similar) but how can I modify it ?

Thanks,

~RaGE();

Re: File Properties

David Crow23-Jun-05 4:36

David Crow

23-Jun-05 4:36

Use RT_VERSION with this.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: File Properties

Rage23-Jun-05 20:54

Rage

23-Jun-05 20:54

Thanks for the answer David, but this is only for Word documents, isn't it ? I was actually hoping to change the properties of any file (Word document, text file, ...).

~RaGE();

Re: File Properties

David Crow24-Jun-05 2:33

David Crow

24-Jun-05 2:33

Rage wrote:
...but this is only for Word documents, isn't it ?

No, it works for others too.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

HELP!! Got couple of hours to fix dat problem or...i am over..!!

Ana-bahy23-Jun-05 3:32

Ana-bahy

23-Jun-05 3:32

//header file
/////////////////////////////////////////////

node* next;
};

class cqueuetype
{
public:
cqueuetype();
void EnqueueRear(node* newNode);
void display();
bool isempty();
void makeEmpty();
void save();
void load();
void find();
void find1();
char infile();
void num_of_memo();

private:
node* rear;
node* front;
int counter;
};
//////////////////////////////////////////////

//Part of da cpp
//////////////////////////////////////////////
void cqueuetype::save()
{
node* saving=front;

ofstream outfile("c:\\queue.txt",ios::out);
if(!outfile)
{
cout<<"Can not find drive"<<endl;
}
="" else
="" {
="" outfile<<counter<<endl;
=""
="" while="" (saving="" !="NULL)
" outfile<<"title:"<<endl;
="" outfile<<"="" "<<saving-="">Title<<endl;;
outfile<<"date="" &="" time:"<<endl;
="" outfile<<"="" "<<saving-="">Date_Time<<endl;
outfile<<"memo:"<<endl;
="" outfile<<"="" "<<saving-="">Content<<endl;
outfile<<"....................................."<<endl;

="" saving="saving-">next;
}
outfile.close ();
}

}

And here is an example of da file it saved

2
TITLE:
Bad Day
Date & Time:
06/19/2005 04:19:27 PM
MEMO:
Today is da worst day in my life..
.....................................
TITLE:
Good Day
Date & Time:
06/20/2005 04:19:27 PM
MEMO:
Today is a Good day.
.....................................

Now this (2) is the number of memos in my file
but now i got a problem which is...as soon as close my programe and run it again , and ask da program to display da memos , it cant display it well , cause it cant read it from da file...
da other problem is , if i added a new entry before i load da file , all da old enteries will be deleted... it will over write on it...

So... i need to know what shall i do , and what is da prober load function i can use , where i have 3 string , in dat node i load....
My regards ,
Bahy

Re: HELP!! Got couple of hours to fix dat problem or...i am over..!!

Cedric Moonen23-Jun-05 3:47

Cedric Moonen

23-Jun-05 3:47

ana_bahy wrote:
and ask da program to display da memos , it cant display it well , cause it cant read it from da file...

That's normal because when you open the file, its contents are destroyed. Try to use that instead:

ofstream outfile("c:\\queue.txt",ios::out | ios::app);<br />

ana_bahy wrote:
da other problem is , if i added a new entry before i load da file , all da old enteries will be deleted... it will over write on it...

We cannot guess what's happening during the load if you don't post the code.
And please, use the formating tags to make your code look better (it is just above the emoticons, use the 'code' or 'pre' tag).

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.