C / C++ / MFC Discussion Boards

Tom Wright7-Jul-05 11:00

7-Jul-05 11:00

nope....looks like I was missing a pointer to me main menu. Once I got that it worked out. Thanks anyways

Tom Wright
tawright915@yahoo.com

FTP Download

Ash817-Jul-05 6:35

Ash81

7-Jul-05 6:35

Hi all,

I am writing an application to download files from FTP server, but when the connection fails (from the FTP server side)during downloading a file the application stops working.
i used CFTPConnection::GetFile() but it didn't work, also i tried to use CInternetFile::Read() but the function also stop responding when the connection fails during the files download.
can anyone help me , thanx.

Communication between class

antoine_david7-Jul-05 5:34

antoine_david

7-Jul-05 5:34

I would like to pass a variable in a edit box from a child dialog box to an other edit box whitch is in a parent dialog box.
My probleme is that the 2 class (child and parent) don't know there variable each other.
How can I do to get a variable from a class to an other class ?

Thank in advance for the answer Smile | :)

Re: Communication between class

David Crow7-Jul-05 5:43

David Crow

7-Jul-05 5:43

When the child dialog closes, save the contents of the edit control in a public member variable. When control returns back to the parent dialog, you can then access that other dialog's member variable. Make sense?

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

Re: Communication between class

antoine_david7-Jul-05 6:08

antoine_david

7-Jul-05 6:08

I tried to but a member variable is declare in only 1 class an the other class don't know her... You can't declare a common public member variable for 2 class.

Re: Communication between class

David Crow7-Jul-05 6:16

David Crow

7-Jul-05 6:16

I'm not sure exactly what you did, but what I described will work. Perhaps you misinterpreted it. Is this an MFC application?

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

Re: Communication between class

S. Senthil Kumar7-Jul-05 6:24

S. Senthil Kumar

7-Jul-05 6:24

You can always make the variable public. Or better still, add a getter that returns the value of the variable.

yourDialog.DoModal();
CString text = yourDialog.GetYourText();

In your child Dialog, add a getter that looks like
CString GetYourText()
{
   // return text in editbox.
}

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Communication between class

antoine_david7-Jul-05 20:49

antoine_david

7-Jul-05 20:49

Thank you for your help, The solution with getYourText is working Big Grin | :-D

. I don't why but the solution with the variable public don't work D'Oh! | :doh:

gdiplus Image

Abhiman7-Jul-05 4:31

Abhiman

7-Jul-05 4:31

Hi,
I am working on scanner driver. The scanner sends the JPEG data in chunks and I am saving the chunks of data in a stream. I need to convert the JPEG stream to BMP stream. I want to know is there any facility from the gdi++ library to process the chunks of data and keep storing it in another stream.
Scanning the image and processing it should be paralel.

Thanks in advance.

Abhiman

Mfc42.dll

TUMB7-Jul-05 4:30

TUMB

7-Jul-05 4:30

I keep getting the following error

Cannot find import;Dll may be missing, corrupt, or wrong version file "MFC42.DLL", ordinal 6467(error 127)

Can anyone help me with this.

Meena

Re: Mfc42.dll

David Crow7-Jul-05 4:54

David Crow

7-Jul-05 4:54

What are you doing when this error appears? Does the file exist on the machine? Is there more than one occurrence?

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

Tried dialog hidden technique from dlgboxtricks but it didn't work....

balaclavabob7-Jul-05 4:26

balaclavabob

7-Jul-05 4:26

Hi,

I am trying to make Nishant Sivakumar - "Using global hotkeys" start hidden:
http://www.codeproject.com/system/nishhotkeys01.asp

I have added the hidden modal code from Nishant Sivakumar - "Some handy dialog box tricks, tips and workarounds ":
http://www.codeproject.com/dialog/dlgboxtricks.asp

It compiles, but it doesn't become hidden.

Changes to the "Using global hotkeys" project I made:

In "HotKeyTestDlg.cpp" I added:

void CHotKeyTestDlg::OnWindowPosChanging(WINDOWPOS * pos)
{
if(!visible)
pos->flags &= ~SWP_SHOWWINDOW;
CDialog::OnWindowPosChanging(pos);
}

and added "visible = FALSE;" to:

CHotKeyTestDlg::CHotKeyTestDlg(CWnd* pParent /*=NULL*/)
: CDialog(CHotKeyTestDlg::IDD, pParent)

In "HotKeyTestDlg.h" I added "BOOL visible;" to protected under:

class CHotKeyTestDlg : public CDialog

This wouldn't compile "error C2509: 'OnWindowPosChanging' : member function not declared in 'CHotKeyTestDlg'" till I added "void OnWindowPosChanging(WINDOWPOS * pos);" to public under:

class CHotKeyTestDlg : public CDialog

So it now compiles and runs, but it doesn't start hidden.

Re: Tried dialog hidden technique from dlgboxtricks but it didn't work....

David Crow7-Jul-05 5:03

David Crow

7-Jul-05 5:03

balaclavabob wrote:
This wouldn't compile...

You could have avoided all of this hassle by letting ClassWizard add the method for you. It would have updated both the .cpp and .h files.

balaclavabob wrote:
So it now compiles and runs, but it doesn't start hidden.

Cab you confirm that the pos->flags &= ~SWP_SHOWWINDOW statement is actually executed? If not, is visible being changed to TRUE somewhere?

Do you have any calls to ShowWindow()?

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

Re: Tried dialog hidden technique from dlgboxtricks but it didn't work....

balaclavabob7-Jul-05 6:43

balaclavabob

7-Jul-05 6:43

DavidCrow wrote:
You could have avoided all of this hassle by letting ClassWizard add the method for you. It would have updated both the .cpp and .h files.
MFC is something I have been told to avoid at all costs and just go and learn .Net, so my knowledge of MFC is quite limited.

DavidCrow wrote:
Cab you confirm that the pos->flags &= ~SWP_SHOWWINDOW statement is actually executed? If not, is visible being changed to TRUE somewhere?
It is not executing, I tried both:

void CHotKeyTestDlg::OnWindowPosChanging(WINDOWPOS * pos)
{
if(!visible)
{
pos->flags &= ~SWP_SHOWWINDOW;
MessageBox("This executed");
}
CDialog::OnWindowPosChanging(pos);
}

void CHotKeyTestDlg::OnWindowPosChanging(WINDOWPOS * pos)
{

pos->flags &= ~SWP_SHOWWINDOW;
MessageBox("This executed");

CDialog::OnWindowPosChanging(pos);
}

both didn't bring up the message box.
visible is always false for the entire length of the program, I haven't modified it anywhere and it isn't being modified by anything.

DavidCrow wrote:
Do you have any calls to ShowWindow()?
I have no calls to ShowWindow() at all.

Re: Tried dialog hidden technique from dlgboxtricks but it didn't work....

David Crow7-Jul-05 6:51

David Crow

7-Jul-05 6:51

You failed to add ON_WM_WINDOWPOSCHANGING() to the dialog's message map. This is something that ClassWizard would have handled for you!

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

Re: Tried dialog hidden technique from dlgboxtricks but it didn't work....

balaclavabob7-Jul-05 7:20

balaclavabob

7-Jul-05 7:20

I added it manually and it worked.

I was looking thru the ClassWizard and unless I added in ON_WM_WINDOWPOSCHANGING() manually it wouldn't have appeared....

For future reference how should I use ClassWizard todo something like this....

Thanks for your help.

Re: Tried dialog hidden technique from dlgboxtricks but it didn't work....

David Crow7-Jul-05 7:28

David Crow

7-Jul-05 7:28

balaclavabob wrote:
I was looking thru the ClassWizard and unless I added in ON_WM_WINDOWPOSCHANGING() manually it wouldn't have appeared....

Wrong again. ClassWizard has somehow been set to only show dialog-related messages. Click the Class Info tab and select Window in the Message filter: combobox. Back on the Message Maps tab, you should see WM_WINDOWPOSCHANGING in the list of messages.

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

Re: Tried dialog hidden technique from dlgboxtricks but it didn't work....

balaclavabob7-Jul-05 7:36

balaclavabob

7-Jul-05 7:36

DavidCrow wrote:
Wrong again. ClassWizard has somehow been set to only show dialog-related messages. Click the Class Info tab and select Window in the Message filter: combobox. Back on the Message Maps tab, you should see WM_WINDOWPOSCHANGING in the list of messages.

Thanks it worked.

PNG displaying in VISUAL C - is it possible ?

seq-7-Jul-05 3:34

seq-

7-Jul-05 3:34

Im working on a Window program written in Visual C,
and I need to display a png file in a window, but
AFAIK the window GDI has no such possibility,
anyone has a clue how to do this ?

(and please dont come with an answer like: libpng.. Poke tongue | ;-P

)

Re: PNG displaying in VISUAL C - is it possible ?

Andrew Kirillov7-Jul-05 3:47

Andrew Kirillov

7-Jul-05 3:47

Hello

libpng just arised in my mind, but ...

grep2 wrote:
(and please dont come with an answer like: libpng.. )

What is the problem with it ? Why don't you like it ?

Maybe you should try GDI+ ?

Andrew

Re: PNG displaying in VISUAL C - is it possible ?

JWood7-Jul-05 8:33

JWood

7-Jul-05 8:33

If it is a Visual C++ 6.0 program you should try cximage here on CP. (Do a search)

Mail Server Project

saood swar7-Jul-05 2:29

saood swar

7-Jul-05 2:29

Hi all;
I have a Mail server project that i have to submit in 2 months and i would like to code it using VC++, and I thought if any one could provide help...:->

SS

Re: Mail Server Project

ThatsAlok7-Jul-05 2:40

ThatsAlok

7-Jul-05 2:40

saood swar wrote:
I thought if any one could provide help...

What type of help do you need ?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: Mail Server Project

saood swar7-Jul-05 3:27

saood swar

7-Jul-05 3:27

ANY KIND OF HELP; LIKE SOURCE CODES, HINTS, WEB SITES, OR EVEN SAMPLE PROJECTS..

MANY THNX..

SS

Re: Mail Server Project

Ravi Bhavnani7-Jul-05 10:36

Ravi Bhavnani

7-Jul-05 10:36

It appears you're trying to get someone to do your homework for you. You'll be doing yourself a disservice by not tackling the problem yourself.

If you're looking for ideas, here's[^] a list of open source mail systems you may want to explore.

/ravi

My new year's resolution: 2048 x 1536
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