Re: Calling dll [modified] - C / C++ / MFC Discussion Boards

Re: upload file through FTP

Madhu Nair28-Dec-09 23:03

Madhu Nair

28-Dec-09 23:03

raj1576 wrote:
My problem is that how i find the progress of the file

You could use CInternetFile's Open and Read method to write the file yourself, giving you the ability to easily calculate the progress.

Also try using CInternetSession::OnStatusCallback[^] for status updates.

Re: upload file through FTP

raj157628-Dec-09 23:40

raj1576

28-Dec-09 23:40

Thanks for reply

I tried Also Open and Read method but this is synchronous but I want asynchronous. so I use CFtpConnection. I also tried OnStatusCallback but I am not getting how I use this callback function.Pls help somithing for using this callback function.

Re: upload file through FTP

Madhu Nair29-Dec-09 0:29

Madhu Nair

29-Dec-09 0:29

Try CFTPTransferDlg & CFTPTransferer v1.14 by PJ Naughter[^]

Re: upload file through FTP

raj157629-Dec-09 2:04

raj1576

29-Dec-09 2:04

thanks for help

Calling dll

Le@rner28-Dec-09 18:22

Le@rner

28-Dec-09 18:22

Hi all,

i have made a dll i want to use that dll in my program i have called the function of that dll using this code

typedef void (*function1_ptr) ();
function1_ptr function1=NULL;

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
 	

    HMODULE myDll = LoadLibrary("myfile.dll"); 

    if(myDll)
	{  
		function1 = (function1_ptr) GetProcAddress(myDll,"function1");  

		if(function1)  
			function1();

		FreeLibrary(myDll);
    }

	return 0;
}

i have copied my dll in debug folder, but control is not going inside if statement...

how should i do it....

can anybody please help me...

Thanks in advance

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Calling dll

Madhu Nair28-Dec-09 18:32

Madhu Nair

28-Dec-09 18:32

Try giving full path in LoadLibrary.
HMODULE myDll = LoadLibrary("myfile.dll");
to something like
HMODULE myDll = LoadLibrary("C:\\Myproject\\debug\\myfile.dll");

Re: Calling dll

Abhi Lahare28-Dec-09 19:11

Abhi Lahare

28-Dec-09 19:11

What the error return code you are getting from LoadLibrary function?

Re: Calling dll [modified]

EverettJF28-Dec-09 20:38

EverettJF

28-Dec-09 20:38

GetProcAddress(myDll,"function1");
maybe the 2nd parameter is the key.
you could use "dumpbin /exports myfile.dll" to check the exported functions' name.

then,give the right name string.

i think your dll should include .def file

modified on Tuesday, December 29, 2009 3:16 AM

Re: Calling dll

Cedric Moonen28-Dec-09 22:38

Cedric Moonen

28-Dec-09 22:38

Le@rner wrote:
but control is not going inside if statement...

Which one ? The one after the call to LoadLibrary or the one after the call to GetProcAddress ? If this is the second call, make sure that you have provided a module defintion file (.def file) as explained in the documentation[^]

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Random File Name

lxkjlzz28-Dec-09 16:10

lxkjlzz

28-Dec-09 16:10

hi:
How to generate random file names? It is better provide a simple method. thanks Smile | :)

Re: Random File Name

David Crow28-Dec-09 16:27

David Crow

28-Dec-09 16:27

Have you tried GetTempFileName()?

"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

Re: Random File Name

lxkjlzz28-Dec-09 21:02

lxkjlzz

28-Dec-09 21:02

I use it,thanks

Re: Random File Name

Aric Wang28-Dec-09 17:36

Aric Wang

28-Dec-09 17:36

UINT GetTempFileName(
LPCTSTR lpPathName, // pointer to directory name for temporary
// file
LPCTSTR lpPrefixString, // pointer to filename prefix
UINT uUnique, // number used to create temporary filename
LPTSTR lpTempFileName
// pointer to buffer that receives the new
// filename
);

I am not a genius, but shed more sweat!

Re: Random File Name

lxkjlzz28-Dec-09 21:06

lxkjlzz

28-Dec-09 21:06

Filename extension from .tmp to .txt or another? how to do

Re: Random File Name

Madhu Nair28-Dec-09 23:08

Madhu Nair

28-Dec-09 23:08

Find .tmp and replace it to .txt in the generated filename string Wink | ;)

Re: Random File Name

lxkjlzz29-Dec-09 13:48

lxkjlzz

29-Dec-09 13:48

May I get filename which like *.txt directly using GetTempFileName() Smile | :)

Re: Random File Name

David Crow30-Dec-09 5:29

David Crow

30-Dec-09 5:29

Did you read the docs? It plainly states that a .tmp extension will be used.

File serialization question

CODEPC28-Dec-09 8:32

CODEPC

28-Dec-09 8:32

Hi
Because I used multi-inheritance in my application. I can not use MFC default file serialization. I have to implement file saving and reading function myself.

My question is how to save/read a class information to/from file.

If I save a class information with class name and its property into the file. How do I know the character string in the file is a class name or not?

Thanks,

Re: File serialization question

Emilio Garavaglia28-Dec-09 9:05

Emilio Garavaglia

28-Dec-09 9:05

This (MFC - Multiple inheritance and serialization[^]) is a little old, but may help you.

2 bugs found.
> recompile ...
65534 bugs found.
D'Oh! | :doh:

Re: File serialization question

CODEPC28-Dec-09 12:21

CODEPC

28-Dec-09 12:21

I got an error:

\utility\std_serialize.h(102) : error C2039: 'hash_map' : is not a member of 'std'

Thanks

Re: File serialization question [modified]

«_Superman_»28-Dec-09 12:24

«_Superman_»

28-Dec-09 12:24

Try adding #include <hash_map> in std_serialize.h.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

modified on Monday, December 28, 2009 10:44 PM

Re: File serialization question

Nelek28-Dec-09 13:53

Nelek

28-Dec-09 13:53

«_Superman_» wrote:
Try adding #include in std_serialize.h.

Maybe you want to write a space between "<", "Whatever" and ">" if not, there is nothing to include in your answer Poke tongue | ;-P

Regards.
--------
M.D.V. Wink | ;)

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpfull answers is nice, but saying thanks can be even nicer.

Re: File serialization question

Luc Pattyn28-Dec-09 13:59

Luc Pattyn

28-Dec-09 13:59

yes, that helps. The official stance is to check the "Encode HTML tags when pasting" checkbox underneath the edit box.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

Merry Christmas and a Happy New Year to all.

Re: File serialization question

«_Superman_»28-Dec-09 16:46

«_Superman_»

28-Dec-09 16:46

I always forget to use the HTML escape tags while typing.
Because of this I had requested a new window appear when typing code.
Hopefully we will see this feature in the near future.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Re: File serialization question

Richard MacCutchan31-Dec-09 5:13

Richard MacCutchan

31-Dec-09 5:13

Just use the "Preview" button before final posting.

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