Folder size - C / C++ / MFC Discussion Boards

Re: Problem in using Fromhandle Function

ashtwin16-Mar-08 21:03

16-Mar-08 21:03

Sorry, u r right CDC don't have FromHandlePermanent(). Now the question is whether we can return a temporary object pointer from a function or not?

Thanks
Ashwani

Re: Problem in using Fromhandle Function

Rajkumar R16-Mar-08 21:17

Rajkumar R

16-Mar-08 21:17

ashtwin wrote:
Now the question is whether we can return a temporary object pointer from a function or not?

That i answered repeatedly, if you are sure the idle processing is not allowed to execute that is used CDC within a function callstack which is running in the same thread as of the Message loop ad you are not doing windows message processing in between.

Re: Problem in using Fromhandle Function

ashtwin16-Mar-08 22:31

ashtwin

16-Mar-08 22:31

Ok, thanks.
I think
dc.StartDoc;
is the culprit. Because after prompting Save as dialogue the system will become idle and temporary objects are getting deleted during this call only.

Re: Problem in using Fromhandle Function

Rajkumar R16-Mar-08 22:40

Rajkumar R

16-Mar-08 22:40

Then what about returning an object which is attached using CDC::Attach not CDC::FromHandle.

CDC *CreatePrinterDC()
{
   ....
   CDC *pdcPrinter = new CDC;
   pdcPrinter ->Attach(hdcPrinter);
   ....
   return pdcPrinter;
}

clean up

delete pdcPrinter;

in main function;

Re: Problem in using Fromhandle Function

ashtwin16-Mar-08 23:04

ashtwin

16-Mar-08 23:04

Hi,
i think the solution which u r suggesting will definately work.
But i have overridden createDCForPrint() and in one function i am already using new to create CMetaFileDC object.
I will try to implement ur solution if possible.

Thanks

Property Sheet

john563214-Mar-08 0:36

john5632

14-Mar-08 0:36

Hi How can I read a selected file propetry sheet objects (info in propery pages)?

Re: Property Sheet

David Crow14-Mar-08 2:42

David Crow

14-Mar-08 2:42

Your question is too vague. Please explain.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Folder size

sushildaga198414-Mar-08 0:19

sushildaga1984

14-Mar-08 0:19

If there are 10 files of same extension.In run time there is change in no of file how to get size of all files and sum it up as we dosent know the names of file.For vc++ dialog based application.give a sample code if possible

Re: Folder size

Demian Panello14-Mar-08 0:24

Demian Panello

14-Mar-08 0:24

Check the following article[^]

Demian.

"I have always wished that my computer would be as easy to use as my
telephone. My wish has come true. I no longer know how to use my telephone."
-Bjarne Stroustrup, computer science professor, designer of C++
programming language (1950- )

Re: Folder size

Demian Panello14-Mar-08 0:27

Demian Panello

14-Mar-08 0:27

Ah, in addition to my other reply post check this[^]

Positioning a Dialog Box

AbbyIndian14-Mar-08 0:15

AbbyIndian

14-Mar-08 0:15

Hi All,

I have a dialog based app..It has some buttons on it.
When I click a button, a Modal Dialog Box pops up.
Now, how do I position the Modal Dialog Box so that it is drawn over the button... ??
I want to draw the dialog boxws right over the corresponding buttons..

I have used SetWindowPos but it positions the dialog box relative to the top left of the screen.
I want to position it relative to the upper left vertex of the application's main dialog box

Hope I have clearly stated my problem Smile | :)

Regards,
AbbyIndian

...A Programmer may or may not be the master of the programming language grammar...

Re: Positioning a Dialog Box

Iain Clarke, Warrior Programmer14-Mar-08 0:34

Iain Clarke, Warrior Programmer

14-Mar-08 0:34

You need to use better coordinates for SetWindowPos then.

If you use GetDlgItem (IDC_MYBUTTON)->GetWindowRect (&rcCoords), then you'll get the button's position in screen coordinates, which you can then use in SetWindowPos for your secondary dialog.

Iain.

Iain Clarke appears because ^CPallini still cares.

Re: Positioning a Dialog Box

AbbyIndian14-Mar-08 0:48

AbbyIndian

14-Mar-08 0:48

Thanks for the response Smile | :)

But don't we have same flag or attribute setting or some other way after which we can provide relative x,y points to SetWindowPos ??

Regards,
AbbyIndian

...A Programmer may or may not be the master of the programming language grammar...

Re: Positioning a Dialog Box

CPallini14-Mar-08 1:03

CPallini

14-Mar-08 1:03

Nope.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: Positioning a Dialog Box

AbbyIndian14-Mar-08 1:14

AbbyIndian

14-Mar-08 1:14

Ok..

Thank you

Regards,
AbbyIndian

...A Programmer may or may not be the master of the programming language grammar...

Re: Positioning a Dialog Box

David Crow14-Mar-08 2:58

David Crow

14-Mar-08 2:58

This code snippet worked fine for me:

void CMyMainDialog::OnButton1() 
{
    CMyPopupDialog dlg(&m_btn1);
    dlg.DoModal();	
}
 
BOOL CMyPopupDialog::OnInitDialog() 
{
    CDialog::OnInitDialog();
	
    CRect rc;
    m_pParent->GetWindowRect(rc); // m_pParent is a pointer to the button
    SetWindowPos(NULL, rc.left, rc.top, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
	
    return TRUE;
}

Erro while building the project

Rahul.RK14-Mar-08 0:06

Rahul.RK

14-Mar-08 0:06

Hello friends,

I am trying to built in project in Visual Studio 2005. Project is created in MFC(Application project) and Visual studio 2003 by other person.

I am getting an error while comping. The error points towards
some file comsuppwd.lib.

I am just putting error names here as follows,

error LNK2005: "class _variant_t vtMissing" (?vtMissing@@3V_variant_t@@A) already defined in comsuppwd.lib(comutil.obj)	comsuppd.lib

and other is
fatal error LNK1169: one or more multiply defined symbols found

I searched on net but not able to solve this error. please help me.

Thanks in Advance.

Re: Erro while building the project

Rajkumar R14-Mar-08 0:26

Rajkumar R

14-Mar-08 0:26

"Explicit references to comsupp.lib, either from the comment pragma or via the command line, should be changed to now use either comsuppw.lib or comsuppwd.lib, as /Zc:wchar_t is now on by default. comsupp.lib should still be used when compiling with /Zc:wchar_t-." from msdn.

try setting "vsproperty->language->Treat wchar_t as Built-in type = No". or specify the lib as above.

Re: Erro while building the project

Member 335235310-Jan-11 19:06

Member 3352353

10-Jan-11 19:06

We solved this by Ignoring the library comsuppd.lib/comsuppwd.lib
Properties->Linker->Input->Ignore Specific Library

Hope it helps you

Thanks,
Vijay

Burning DVD

sushildaga198413-Mar-08 23:47

sushildaga1984

13-Mar-08 23:47

I want to burn the data in DVD using the inbuit software in windows xp operating system.How to do it. I want to do in vc++ dialog based application.

Re: Burning DVD [modified]

Demian Panello14-Mar-08 2:20

Demian Panello

14-Mar-08 2:20

Check this[^]

The next time, please make a search first here in Codeproject before posting a question.

modified on Friday, March 14, 2008 8:35 AM

How to Disable OK Button from property sheet.

Ashish Chauhan13-Mar-08 23:44

Ashish Chauhan

13-Mar-08 23:44

Hi all...

How can i disable OK button from property sheet??
I want OK button to enable when user make some changes...

It's Non MFC..

Thanks

Ash..

Re: How to Disable OK Button from property sheet.

Rajesh R Subramanian13-Mar-08 23:54

Rajesh R Subramanian

13-Mar-08 23:54

Have you tried using EnableWindow()?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: How to Disable OK Button from property sheet.

Ashish Chauhan14-Mar-08 0:26

Ashish Chauhan

14-Mar-08 0:26

I tried...
But What would be identifier for OK Button??
As OK,Cancel and Apply button comes when i create Property sheet.

I tried this

EnableWindow(GetDlgItem(hPWnd,PSBTN_OK),FALSE);

Guide me to find the identifier of OK button..

Thanks.

Ash..

Re: How to Disable OK Button from property sheet.

Rajesh R Subramanian14-Mar-08 1:57

Rajesh R Subramanian

14-Mar-08 1:57

Ashish Chauhan wrote:
I tried this

EnableWindow(GetDlgItem(hPWnd,PSBTN_OK),FALSE);

So, what happened when you tried that? Did it compile? Did it run? Did it give the expected result?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

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