C / C++ / MFC Discussion Boards

David Crow28-Jul-05 5:31

28-Jul-05 5:31

Cool Ju wrote:
Dont define ur message as application message (WM_APP), make it WM_USER

Not recommended. While older books and tutorials used WM_USER, these symbols caused problems by conflicting with messages that Microsoft was using. Use WM_APP instead.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: CView and Dialog

David Crow28-Jul-05 5:37

David Crow

28-Jul-05 5:37

m_fuad67 wrote:
how could i exchange data between the TreeView and Dialog(not FormView)??

I presume some method in the tree view class is in charge of displaying the dialog. Correct? If so, then you'll want something like:

void CMyTreeView::OnButtonClick()
{
    CMyDialog dlg;
    if (dlg.DoModal() == IDOK)
    {
        // access member variables of <code>dlg</code> object here
    }
}

Make sense?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: CView and Dialog

Mohammed F. Salem28-Jul-05 7:13

Mohammed F. Salem

28-Jul-05 7:13

Dear all
there is no true solution

no one can solve this problem?????? ohhhh nooooo

Re: CView and Dialog

David Crow28-Jul-05 7:23

David Crow

28-Jul-05 7:23

m_fuad67 wrote:
there is no true solution

no one can solve this problem...

I guess I'll have to go back and change all of my working code to longer work. I've done it so many times, it might take a while, but if you say there is no solution, well...

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: CView and Dialog

Mohammed F. Salem28-Jul-05 9:30

Mohammed F. Salem

28-Jul-05 9:30

Hi
i tried it so many times and many ways with other applications

but the problem concentrated between left pane (TreeView) and the dialog (not FormView)

plz any one could help me

i'm at big trouble

MFC programmer

Re: CView and Dialog

David Crow28-Jul-05 9:41

David Crow

28-Jul-05 9:41

I thought the code snippet I provided was sufficient. As it is apparently not, please show the code you are using when the button is clicked to display the dialog box.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: CView and Dialog

Mohammed F. Salem28-Jul-05 9:54

Mohammed F. Salem

28-Jul-05 9:54

show the code you are using when the button is clicked to display the dialog box

i have uploaded the project at me web page

http://www.websamba.com/mohammed_fuad[^]

i cant put it in this forum becuase it is big

thanx

MFC programmer

Re: CView and Dialog

David Crow28-Jul-05 10:08

David Crow

28-Jul-05 10:08

m_fuad67 wrote:
i cant put it in this forum becuase it is big

All I asked for was one function. How big can that be?

Why did you save the file as Roshal Archive (RAR) instead of something more common (e.g., ZIP), or uncompressed since it is just a text file?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

I solved it

Mohammed F. Salem29-Jul-05 8:39

Mohammed F. Salem

29-Jul-05 8:39

this is the solution

CMainFrame* pFrame = (CMainFrame*)AfxGetMainWnd();<br />
CMyView* pView = (CMyView*)pFrame->GetActiveView();

Thanx for evryone who tried to help me

MFC programmer

Aplication crashes

Shailesh Halankar27-Jul-05 20:04

Shailesh Halankar

27-Jul-05 20:04

I have a serious problem. I hv a VC application which has a feature to write to a DVD, which we have implemented as a DLL which inturn uses another DLL(which has been bought).

from my aplication i open a dialog(which is part of the dll) which takes in the parameters required for burning.
Initialy i click on the build button of the dialog.It shows the progress bar,but as the progressbar is on if i cancel the dialog then the application crashes.
once the progress is completed and then i cancel then the appllication does not crash

if anybody can think for a solution on this then plz let me know

Re: Aplication crashes

Bob Stanneveld27-Jul-05 21:08

Bob Stanneveld

27-Jul-05 21:08

Well, you don't give us a lot of information to work with, but using common sense, the most logical place to look for your problem is in your OnCancel handler of the process dialog.

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

Blog[^]

Re: Aplication crashes

Blake Miller28-Jul-05 5:19

Blake Miller

28-Jul-05 5:19

One other guess is that you have a background thread running for the DVD processing. When you click cancel, you are leaving your dialog too soon - the background thread is still running, but you have deleted some data it requires. It tries to access the data and gets an access violation fault.

CFileDialog

ajmalsiddiqi27-Jul-05 19:19

ajmalsiddiqi

27-Jul-05 19:19

i m using CFileDialog object to open file dialog so user can select the files but i want to make disable the "delete" option if user right clicks on the selected file and tries to delete it.Also user cannot be able to delete the selected file by the key "delete" from key board.
thanks
ajmal

ajmalsiddiqui

Re: CFileDialog

Rob Manderson27-Jul-05 19:33

Rob Manderson

27-Jul-05 19:33

See this[^]

Rob Manderson

I'm working on a version for Visual Lisp++

My blog http://blogs.wdevs.com/ultramaroon/[^]

Re: CFileDialog

Marc Soleda27-Jul-05 19:49

Marc Soleda

27-Jul-05 19:49

I think that you'll have to subclass CFileDialog to handle these things.

Marc Soleda.

... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

Re: CFileDialog

ajmalsiddiqi27-Jul-05 23:25

ajmalsiddiqi

27-Jul-05 23:25

hi what a good reply thanks for this.
I m using CFileDialog class object but on domodal i want to restrict the user to modifify the files those are veiwed in filedialog.Actually i want that user can only veiw the files and can copy by mouse right click but not cut and del.
bye
ajmal

ajmalsiddiqui

How to open default mail client and pass to it subject, body and an attachement?

petehero27-Jul-05 19:01

petehero

27-Jul-05 19:01

This is a way:
ShellExecute(pMainFrm->m_hWnd,"open",
"mailto:@?body="+mailBody,NULL,NULL,SW_SHOW);

But the body has 2048 bytes limit;
and it can't have an attachement.

Is there another way to solve it?
Or break through the limit of 2048 bytes?

Opening the default mail client is necessary.

Thanks!!

Re: How to open default mail client and pass to it subject, body and an attachement?

David Crow28-Jul-05 5:44

David Crow

28-Jul-05 5:44

petehero wrote:
...and it can't have an attachement.

Are you sure?

http://www.codeproject.com/script/comments/forums.asp?msg=1139190&forumid=1647&XtraIDs=1647#xx1139190xx[^]

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: How to open default mail client and pass to it subject, body and an attachement?

petehero28-Jul-05 18:43

petehero

28-Jul-05 18:43

Thanks for reply.
I tried:
mailto:joe@something.com?subject=Test&attachment="c:\boot.ini"

But it doesn't work.

thanks for reminding me,
I will create a *.eml file instead.

And this is a good idea:
ShellExecute(NULL,"open", "test.eml","","",SW_SHOWNORMAL);

Thanks a lot,
Peter

Re: How to open default mail client and pass to it subject, body and an attachement?

David Crow29-Jul-05 2:28

David Crow

29-Jul-05 2:28

petehero wrote:
I tried:
mailto:joe@something.com?subject=Test&attachment="c:\boot.ini"

But it doesn't work.

So what does happen?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: How to open default mail client and pass to it subject, body and an attachement?

petehero31-Jul-05 19:48

petehero

31-Jul-05 19:48

I tried:
mailto:joe@something.com?subject=Test&attachment="c:\boot.ini"

Then outlook express opens a new email window with subject "Test".

But there is no attachment.

I use win2k and OE6.

Smile | :)

modeless dialog pointer

sayup27-Jul-05 18:58

sayup

27-Jul-05 18:58

i wanted to know that while allocating memory to ptr for modeless dialog is it necessary to initialize the ptr to first NULL in the constructor of the class of the dialog or do i need to initilaize to NULL where i write code to dispaly the modeless dialog?(in my case in menu handler of another dialog)

thanks

Re: modeless dialog pointer

Christian Graus27-Jul-05 19:14

Christian Graus

27-Jul-05 19:14

Setting first to NULL is a matter of good style, nothing will ever detect that you did, or complain that you didn't ( which is sort of the point ). When you create it, it's too late, before you create it, you want it to be NULL so you can tell it has not been created. So, all pointers should be set to NULL in the constructer for members, and at the time they are declared for variables in functions. There would be no point in setting it to NULL jsut before it got given a valid value.

Christian Graus - Microsoft MVP - C++

Re: modeless dialog pointer

sayup27-Jul-05 20:53

sayup

27-Jul-05 20:53

thanks,can you suggest on something else.Actually i ahve a problem.I have created a dialog based application.I have inserted menu options voz dialog1,dialog2,dialog3,....dialog6 in the dialog .On clicking of these menu opions i am popping 6 different modeless dialog.here is sample code written for say menu item dialog1
midialog *d1;//midialog is class for dialog resource
d1=new midialog;
d1->Create(IDD_DIALOG1);
d1->ShowWindow(SW_SHOW);

d1 optionally is set to NULL in parent dialog constructor.

To close the dialog i either click on OK or Cancel or Red cross button and then i close the parent window.I have overriden OnCancel,OnOk functions and called DestroyWindow() in them. Also called PostNcDestroy function .Is this correct?

midialog::OnOk()
{
//Cdialog::OnOK();//commented out
UpdateData(TRUE);
Destroywindow(0;
}
midialog::Oncancel()
{
//CDialog::OnCancel();//commented out since it calls EndDialog and not DestroyWindow()
}
midialog::PostNcDestroy()
{
CDialog::PostNcDestroy();
delete this;
}

Is this ok?i also hope then there will be no problem when i close the modeless dialog and open it again
plz reply
i am in fix

Re: modeless dialog pointer

Christian Graus28-Jul-05 15:10

Christian Graus

28-Jul-05 15:10

The thing to do is this:

d1 needs to be a member variable, that is, it needs to be declared in the parent classes header file. Otherwise, how can you clean up after this memory ?

Assuming it's now called m_d1, you set it to NULL in your constructor.

Now when your user clicks the menu item for d1, it looks like this :

if (m_d1 == NULL)
{
d1=new midialog();
d1->Create(IDD_DIALOG1);
}

d1->ShowWindow(SW_SHOW);

And your OnOK and OnCancel should both NOT call DestroyWindow or delete this, they should just call ShowWindow(SW_HIDE);, which hides the window until the user elects to show it again.

Make sure you handle OnClose as well, or make sure there's no close button on the top right of the modeless dialog.

Christian Graus - Microsoft MVP - C++

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