dev-cpp-users Mailing List for Dev-C++

No need to copy one bit at the time. You wan't to copy as large blocks as
possible to keep code efficient. Create a reasonably large buffer - a
reasonably large number n * 4096 should be good - and then read/write
until done. Just notice that the last read/write block might be smaller.

/Per W

On Wed, 14 Jan 2004, Noorez Kassam wrote:

> This is a code that should copy a .exe file. But i'm not sure what function
> call to use to copy one bit at time. Can someone fill it in.
>
> #include <iostream>
> #include <cstdlib>
> #include <fstream>
> #include <string>
> using namespace std;
>
> int main()
> {
>     ofstream out_file;
>     ifstream in_file;
>
>     cout << "Program copyer. The .exe extension will be added for you\n";
>
>     char name1[234];
>     cout << "Enter name of file: ";
>     cin.getline(name1, 234);
>     strcat(name1,".exe");
>
>     in_file.open(name1, ios::binary);
>     out_file.open("newfile.exe",ios::binary);
>
>     //code needed hear
>
>     system("pause");
> }
>
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>
>
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Oops... the code also has some old comments in it ... I based it on some
other code I had lying around which read words from a file into a vector,
sorted them, and output only the unique words in alphabetical order... so
ignore the comments :D
Actually 'borrowed' that code from Stroustrup, I believe it was somewhere in
"The C++ Programming Language"... very elegant way of using iterators and
streams... too bad I couldn't use it for this problem (the formatted
input/output operators are used like that, which yields incorrect results
for binary files).


Paul
 

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Noorez
Kassam
Sent: Wednesday, January 14, 2004 7:59 PM
To: dev...@li...
Subject: [Dev-C++] File Handling

This is a code that should copy a .exe file. But i'm not sure what function 
call to use to copy one bit at time. Can someone fill it in.

#include <iostream>
#include <cstdlib>
#include <fstream>
#include <string>
using namespace std;

int main()
{
    ofstream out_file;
    ifstream in_file;

    cout << "Program copyer. The .exe extension will be added for you\n";

    char name1[234];
    cout << "Enter name of file: ";
    cin.getline(name1, 234);
    strcat(name1,".exe");

    in_file.open(name1, ios::binary);
    out_file.open("newfile.exe",ios::binary);

    //code needed hear

    system("pause");
}

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Well, here's a version (didn't base it on your code, so variable names and
such are different). Note that it isn't very efficient though (it copies one
byte at a time).

#include <fstream>
#include <string>
#include <iostream>

using namespace std;

int main()
{
	string from,to;
	
	// Get filenames
	cout << "Source file: ";
	getline(cin, from);
	
	cout << "Destination file: ";
	getline(cin, to);
	
	// Open files
	ifstream is(from.c_str(), ios::binary);
	ofstream os(to.c_str(), ios::binary);
	
	if (!is.is_open() || !os.is_open())
	{
		cerr << "Unable to open files." << endl;
		return 1;
	}
	
	// Create some iterators based on the file
	unsigned char uc;
	while (is)
	{
		uc = is.get();
		if (is.eof())
			break;
		os.put(uc);
	}
	
	// Exit app
	return 0;
} 


If your application will only run on Windows (or Win32 systems in general),
you can use the "CopyFile" function defined in windows.h, which will
undoubtedly be faster.

Here's the declaration of this function, in case you're interested:

BOOL CopyFile(
  LPCTSTR lpExistingFileName,
  LPCTSTR lpNewFileName,
  BOOL bFailIfExists
);

Hope this helped,


Paul

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Noorez
Kassam
Sent: Wednesday, January 14, 2004 7:59 PM
To: dev...@li...
Subject: [Dev-C++] File Handling

This is a code that should copy a .exe file. But i'm not sure what function 
call to use to copy one bit at time. Can someone fill it in.

#include <iostream>
#include <cstdlib>
#include <fstream>
#include <string>
using namespace std;

int main()
{
    ofstream out_file;
    ifstream in_file;

    cout << "Program copyer. The .exe extension will be added for you\n";

    char name1[234];
    cout << "Enter name of file: ";
    cin.getline(name1, 234);
    strcat(name1,".exe");

    in_file.open(name1, ios::binary);
    out_file.open("newfile.exe",ios::binary);

    //code needed hear

    system("pause");
}

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Is there a GTKmm.devpack?
TIA

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  power to make the innocent guilty and to make the guilty 
  innocent, and that's power. 
                                - Malcom X
* "Innocent until proven guilty", no... not in Canada!!

This is a code that should copy a .exe file. But i'm not sure what function 
call to use to copy one bit at time. Can someone fill it in.

#include <iostream>
#include <cstdlib>
#include <fstream>
#include <string>
using namespace std;

int main()
{
    ofstream out_file;
    ifstream in_file;

    cout << "Program copyer. The .exe extension will be added for you\n";

    char name1[234];
    cout << "Enter name of file: ";
    cin.getline(name1, 234);
    strcat(name1,".exe");

    in_file.open(name1, ios::binary);
    out_file.open("newfile.exe",ios::binary);

    //code needed hear

    system("pause");
}

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Hello

Is it possible to run a batch file from DevCpp ? I mean, in UltraEdit32, you can enter a "DOS command" and run it by pressing "Ctrl-F9". In my case it's starting a compiler with special instructions. The result of the compiling process will be shown in a windows in UltraEdit32... is there something similar in DevCpp ?

Thx
Regards,
Timo Dammes

www.msdn.com

__declspec is a calling convention used by windows I think. It is not 
necessary to include it explicitly (used anyway)


>From: "P.T. Waugh MA" <pt...@ea...>
>To: dev...@li...
>Subject: [Dev-C++] docs on __declspec?
>Date: Wed, 14 Jan 2004 09:13:57 -0800
>
>Where can I find info (is it a library function?) on the meaning of:
>
>	#define DECLSPEC_EXPORT __declspec(dllexport)
>
>ie the "__declspec(dllexport)" part (I know it's an object macro.)
>
>Thanks, Patrick
>
>
>
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>_______________________________________________
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On Wed, 14 Jan 2004, Michal Molhanec wrote:

> isn't better to use SWT?

Personally, I would stick with Swing, because it is not subject to
Microsoft's whims of changing the API. Why? Because only the lowest level
functions for creating a window actually use native API calls in Swing.
Everything else, including buttons, lists, internal frames, etc., are all
written in Java itself, and have no interaction with the underlying
Windows API.

That means it is going to be a lot safer when Microsoft decides to make
the Win32 API go away. It's going to come depricated in Longhorn in favor
of the WinFX API, which basically means the Win32 API will gradually be
phased out of service.

Where can I find info (is it a library function?) on the meaning of:

	#define DECLSPEC_EXPORT __declspec(dllexport)

ie the "__declspec(dllexport)" part (I know it's an object macro.)

Thanks, Patrick

Hi folks.

I hope you are all enjoying 2004 as much as I am.  There's more to add =
than the subject.  I am embarking on the get to know your local =
PostgreSQL and wondered who has walked this ground already ?

So far the notes I have come across refer to cygwin builds (so far).  I =
wonder if anyone has used mingw32 to build it ?

Many thanks in advance.

Aloha,
           William.

In this program i would like to put the color of background text as the
same as background's color client area.
Could somebody help me?
Thank you.
Pualo



#include <windows.h>

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)
{
     static TCHAR szAppName[] = TEXT ("Hello!") ;
     HWND         hwnd ;
     MSG          msg ;
     WNDCLASS     wndclass ;

     wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
     wndclass.lpfnWndProc   = WndProc ;
     wndclass.cbClsExtra    = 0 ;
     wndclass.cbWndExtra    = 0 ;
     wndclass.hInstance     = hInstance ;
     wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
     wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
     wndclass.hbrBackground = (HBRUSH) GetStockObject (COLOR_BACKGROUND) ;
     wndclass.lpszMenuName  = NULL ;
     wndclass.lpszClassName = szAppName ;

     if (!RegisterClass (&wndclass))
     {
          MessageBox (NULL, TEXT ("This program requires Windows NT!"),
                      szAppName, MB_ICONERROR) ;
          return 0 ;
     }
     hwnd = CreateWindow (szAppName,                  // window class name
                          TEXT ("Hello"),         // window caption
                          WS_OVERLAPPEDWINDOW | WS_EX_CLIENTEDGE,        //
window style
                          CW_USEDEFAULT,              // initial x position
                          CW_USEDEFAULT,              // initial y position
                          CW_USEDEFAULT,              // initial x size
                          CW_USEDEFAULT,              // initial y size
                          NULL,                       // parent window
handle
                          NULL,                       // window menu handle
                          hInstance,                  // program instance
handle
                          NULL) ;                     // creation
parameters

     ShowWindow (hwnd, iCmdShow) ;
     UpdateWindow (hwnd) ;

     while (GetMessage (&msg, NULL, 0, 0))
     {
          TranslateMessage (&msg) ;
          DispatchMessage (&msg) ;
     }
     return msg.wParam ;
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM
lParam)
{
     HDC         hdc ;
     PAINTSTRUCT ps ;
     static TCHAR psText[40];
     static int cxChar, cyChar ;
     int tam;
     TEXTMETRIC tm ;
     switch (message)
     {
     case WM_CREATE:
          hdc = GetDC (hwnd) ;
             GetTextMetrics (hdc, &tm);
             cxChar = tm.tmAveCharWidth ;
             cyChar = tm.tmHeight + tm.tmExternalLeading ;
          ReleaseDC (hwnd, hdc) ;

     return 0 ;

     case WM_PAINT:
          hdc = BeginPaint (hwnd, &ps) ;
             tam = wsprintf (psText,TEXT ("Hello!"));
             TextOut(hdc, 200,155,psText,tam);
          EndPaint (hwnd, &ps) ;
     return 0 ;

     case WM_DESTROY:
          PostQuitMessage (0) ;
          return 0 ;
     }
     return DefWindowProc (hwnd, message, wParam, lParam) ;
}

For a long time I thought that Win98 was the last release MSW had 
released, but apparently there are other newer versions. Is there still 
a market for MSW? Who would be so foolish as to buy MSW OS?
http://news.zdnet.co.uk/software/windows/0,39020396,39119059,00.htm

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* You cannot exercise your power to a point of humiliation.
                               - Jean Chretien

* The media's the most powerful entity on earth. They have the 
  power to make the innocent guilty and to make the guilty 
  innocent, and that's power. 
                                - Malcom X
* "Innocent until proven guilty", no... not in Canada!!

faustogomes wrote:
> Hello there,
>  
> I loved the DevC++. Made me desire to program in C++ again. I am looking 
> for directions on having a GTK+ binding for java. I found java-GNOME but 
> I could not compile or build it at all for windows 2000.
>  
> Could anyone please give some directions.
>  
> ps: It's been now 1 week looking and trying everything!

isn't better to use SWT?

Hi,

As far as I know, there are no Java bindings for GTK. But depending on how
much you want one, you could try making your own. It can be done using
SWIG. A group of people has, for example, creating a Java binding for
wxWindows.

Mike

On Tue, 13 Jan 2004, faustogomes wrote:

> Hello there,
>
> I loved the DevC++. Made me desire to program in C++ again. I am looking for directions on having a GTK+ binding for java. I found java-GNOME but I could not compile or build it at all for windows 2000.
>
> Could anyone please give some directions.
>
> ps: It's been now 1 week looking and trying everything!

Hello there,

I loved the DevC++. Made me desire to program in C++ again. I am looking =
for directions on having a GTK+ binding for java. I found java-GNOME but =
I could not compile or build it at all for windows 2000.

Could anyone please give some directions.

ps: It's been now 1 week looking and trying everything!