how to keep data persistance into controls? - C / C++ / MFC Discussion Boards

Re: CString::Format - Debug vs Release

kakan15-Dec-06 4:12

kakan

15-Dec-06 4:12

Could it be that the release build is unicode, and debug build isn't?

Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson

Re: CString::Format - Debug vs Release

Dustin Henry15-Dec-06 4:15

Dustin Henry

15-Dec-06 4:15

Good call. That fixed it. I didn't even think about checking that. You're the man.

Re: CString::Format - Debug vs Release

kakan15-Dec-06 4:20

kakan

15-Dec-06 4:20

Thanks.

Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson

Re: CString::Format - Debug vs Release

CPallini15-Dec-06 4:13

CPallini

15-Dec-06 4:13

Debug vs Release or Debug vs RELEASE UNICODE?

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.

Re: CString::Format - Debug vs Release

Dustin Henry15-Dec-06 4:16

Dustin Henry

15-Dec-06 4:16

I love this board. 2 helpful answers in under 10 minutes.

Re: CString::Format - Debug vs Release

Mike O'Neill15-Dec-06 10:45

Mike O'Neill

15-Dec-06 10:45

For all string literals in your code, you should use the _T("xxx") macro.

For unicode builds, _T() is replaced by 'L', whereas for non-unicode builds it gets replaced by white space. So, literals end up correctly defined automatically, regardless of the build.

Mike

Re: CString::Format - Debug vs Release

d34studios16-Dec-06 4:27

d34studios

16-Dec-06 4:27

Thanks for the advice.

how to keep data persistance into controls?

Arris7415-Dec-06 4:01

Arris74

15-Dec-06 4:01

This is a shamed question of VC++ and MFC newbee.
I have Dialog box with it's CDialog derived class, which contains some controls and especially edit controls. The variables controls are int type.

When i input a value in the edit control and I close the dialog by pushing Ok buton, the value is lost when I open again the Dialog.

How can I prevent my data to be cleared?

many thnks for your help.

PS: sorry for my poor English, it is also newbee Smile | :)

)

Re: how to keep data persistance into controls?

C^hris L^osinger15-Dec-06 4:19

C^hris L^osinger

15-Dec-06 4:19

before you call DoModal on the dialog, set the member variables (the ones that are tied to the controls) to the values you want the controls to show.

99% of all the dialogs i've ever done end up being launched like this:

CMyDialog foo;
// set values into the dialog
foo.m_intMember1 = someValue1;
foo.m_intMember2 = someValue2;
if (foo.DoModal()==IDOK)
{
  // if the user pressed OK, copy the values out of the dialog
  someValue1 = foo.m_intMember1;
  someValue2 = foo.m_intMember2;
}

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Re: how to keep data persistance into controls?

Arris7417-Dec-06 22:07

Arris74

17-Dec-06 22:07

Many thanks,

It works well.

Re: how to keep data persistance into controls?

Hamid_RT15-Dec-06 18:19

Hamid_RT

15-Dec-06 18:19

Do you want to save these values for next time that you run your program ?

WhiteSky

Re: how to keep data persistance into controls?

Arris7417-Dec-06 22:09

Arris74

17-Dec-06 22:09

Yes I do.

Re: how to keep data persistance into controls?

Hamid_RT17-Dec-06 23:45

Hamid_RT

17-Dec-06 23:45

You can save values on registry and when you want to run your program read of registry,also you can find examples on codeproject

WhiteSky

Re: how to keep data persistance into controls?

Arris7418-Dec-06 2:30

Arris74

18-Dec-06 2:30

Thnks, I gonna try it.

Re: how to keep data persistance into controls?

Hamid_RT18-Dec-06 6:40

Hamid_RT

18-Dec-06 6:40

I hope you find it early Smile | :)

WhiteSky

launch iexplore from a win32 appl

fakeplastictree9515-Dec-06 3:35

fakeplastictree95

15-Dec-06 3:35

Hi everybody

I have to launch iexplore.exe from a win32 appl developed into powerbuilder
environment. Anyone can suggest me a SDK to do this? I would like not to
hard-code iexplore pathname and launch through standard CreateProcess.
Due to my IDE, I cannot use COM or other microsoft component, only base SDK.
Also, if there are no API's to do this, anyone knows another mechanism (for
example a registry key for pathname)? All this to allow my appl run on any
windows installation, independently from version (2000, XP) and language

Thank you very much to everyone

FPT95

Re: launch iexplore from a win32 appl

David Crow15-Dec-06 3:46

David Crow

15-Dec-06 3:46

If you want to launch iexplore.exe, regardless of whether it is the default browser or not, you'll need to use an absolute path, or resolve the CLSID {FBF23B42-E3F0-101B-8488-00AA003E56F8} to IE's path. You could also look for the HKCR\Applications\iexplore.exe\shell\open\command key.

If, however, you just want to launch the default browser, call AssocQueryString() before calling CreateProcess().

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: launch iexplore from a win32 appl

Rage15-Dec-06 3:57

Rage

15-Dec-06 3:57

DavidCrow wrote:
HKCR\Applications\iexplore.exe\shell\open\command

I surprisingly do not have this key, though using ie on my computer. Is this really reliable ?

~RaGE();

I think words like 'destiny' are a way of trying to find order where none exists. - Christian Graus

Do not feed the troll ! - Common proverb

Re: launch iexplore from a win32 appl

David Crow15-Dec-06 4:00

David Crow

15-Dec-06 4:00

Rage wrote:
Is this really reliable ?

I don't know. I was simply providing options for the OP to explore. The more he has to pick from, the more robust his application is likely to be.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: launch iexplore from a win32 appl

fakeplastictree9515-Dec-06 7:31

fakeplastictree95

15-Dec-06 7:31

I think the problem is just reliability
I've found also this registry key:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\IEXPLORE.EXE
But how can I be sure to find it or them on any installation? Confused | :confused:

anyway, thank you everybody for the help

FPT95

Re: launch iexplore from a win32 appl

Rage15-Dec-06 3:54

Rage

15-Dec-06 3:54

fakeplastictree95 wrote:
a registry key for pathname

I do not think this exists (I just searched through my registry).

Need it to be iexplore, or can it be the current web browser (in which case you may want to retrieve the path using registry file extensions) ?

fakeplastictree95 wrote:
not to
hard-code iexplore

This can also be configured in some options of your app.

~RaGE();

I think words like 'destiny' are a way of trying to find order where none exists. - Christian Graus

Do not feed the troll ! - Common proverb

Re: launch iexplore from a win32 appl

Michael Dunn15-Dec-06 11:54

Michael Dunn

15-Dec-06 11:54

Use ShellExecute() to run a URL in the user's default browser.

--Mike--
Visual C++ MVP Cool | :cool:

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Returning CArray

RockyJames15-Dec-06 3:22

RockyJames

15-Dec-06 3:22

Hi,
I have declared int m_intValue; and wrote int GetValue(){ return m_intValue;} function.I have declared a structure

struct Table
{
int intData;
CString strName;

};
CArray<table*,table*>m_Tables;

Now i want to write a function same as GetValue() function which will return m_Tables.How to declare it ?

thanks in before
James

Re: Returning CArray

David Crow15-Dec-06 3:35

David Crow

15-Dec-06 3:35

RockyJames wrote:
How to declare it ?

One such way would be:

typedef CArray<Table*, Table*> _Table;
_Table m_Tables;
 
_Table* GetValue( void )
{
    return &m_Tables;
}

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Accessing variables and functions from another dialog

69 Bay15-Dec-06 3:03

69 Bay

15-Dec-06 3:03

Hi
I have a dialog, that has a sub-dialog. When I have opened the sub-dialog, I may wish to have access to either a variable, of function within the main dialog. Can this be done, if so how?

The value of the variable could change whilst the sub-dialog is open, so I need to check its value before doing anything else in the sub-dialog.

Hope someone can help!

69 Bay

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