Re: How to embedded CFileDialog to user dialog? - C / C++ / MFC Discussion Boards

Re: CEdit Control password style switch

RomTibi30-Jun-11 8:06

RomTibi

30-Jun-11 8:06

Thx I will try it tomorrow. It is 2105. Thumbs Up | :thumbsup:

36. When you surround an army, leave an outlet free.
...
Do not press a desperate foe too hard.

SUN-TZU - Art of War

Re: CEdit Control password style switch

Mark Salsbery30-Jun-11 8:22

Mark Salsbery

30-Jun-11 8:22

As far as I know, and according to the docs[^], after the edit control has been created, the ES_PASSWORD style can't be changed.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: CEdit Control password style switch

User 742933830-Jun-11 8:32

User 7429338

30-Jun-11 8:32

That's true, you can't add or remove ES_PASSWORD directly with SetWindowLong, but with EM_SETPASSWORDCHAR[^] you can still have the desired effect.

modified 13-Sep-18 21:01pm.

Re: CEdit Control password style switch

Mark Salsbery30-Jun-11 8:51

Mark Salsbery

30-Jun-11 8:51

Cool thanks!

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

How to embedded CFileDialog to user dialog?

includeh1030-Jun-11 5:41

includeh10

30-Jun-11 5:41

How to create a modeless or embedded CFileDialog, GetOpenFileName() or GetSaveFileName() into user Dialog?

Thanks

Re: How to embedded CFileDialog to user dialog?

Richard MacCutchan30-Jun-11 6:20

Richard MacCutchan

30-Jun-11 6:20

I'm not 100% sure what you are trying to do but you can look here[^] for help on CFileDialog. Alternatively if you are looking to customise these dialogs to your own specifications then try here[^].

The best things in life are not things.

Re: How to embedded CFileDialog to user dialog?

Mark Salsbery30-Jun-11 8:15

Mark Salsbery

30-Jun-11 8:15

Maybe this... Using Common File Dialogs as Modeless Views[^]

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: How to embedded CFileDialog to user dialog?

Albert Holguin30-Jun-11 9:06

Albert Holguin

30-Jun-11 9:06

Why would you want a modeless CFileDialog? I can't think of any case where a user would select some sort of open/save button and have the software not wait for an input or a cancel.

Regardless of that though, if you really want it, just make your own class derived from CFileDialog (you'll have to replace DoModal() with a call to Create()). Override the virtual methods OnOK() and OnCancel() and you have your own modeless CFileDialog.

Re: How to embedded CFileDialog to user dialog?

Philippe Mori1-Jul-11 10:07

Philippe Mori

1-Jul-11 10:07

I don't think it is possible to embed standard dialog inside a form neighther to execute them as modeless.

You can customize the look of standard dialog but it won't make theme modeless...

If you are targetting Vista and Windows 7, you might look at :

http://archive.msdn.microsoft.com/WindowsAPICodePack[^]

http://stackoverflow.com/questions/2416963/how-to-create-an-explorer-like-folder-browser-control[^]

You could also look at that product:

http://www.ssware.com/fldrview.htm[^]

Although that product is not free, this is probably the best solution (Active-X control) if you want to uses it from a MFC application and do not want to uses .NET framework and you still want to support XP (or even older OS).

Philippe Mori

Convert string to alpha numeric value

Cpp_Com30-Jun-11 3:14

Cpp_Com

30-Jun-11 3:14

Dear All,

I've a String. Now i've converted to MD5 hash checksum value.

Now i want to decode the same string from the hash value.
Please tell me how to do thi.

Note : I'm using Crypto++ library.

Thank you all.

Re: Convert string to alpha numeric value

C^hris L^osinger30-Jun-11 4:12

C^hris L^osinger

30-Jun-11 4:12

Sk_cpp wrote:
Now i want to decode the same string from the hash value.

you cannot "decode" a hash value back into the original data.

image processing toolkits | batch image processing

CFile file handle problem

TheHelenLee29-Jun-11 23:51

TheHelenLee

29-Jun-11 23:51

Hi All,

Sorry for the lengthy description, I don't know how else to explain it...

I have a program which has a sqlite database backup function.

It opens the source.db file, writes backup version info and date into a backup.db file, appends those info with binary stream of source.db, and then closes both files.

However, my program fails with a sharing violation when it tries to open the source.db

CFile csf;
		
CFileException e;
			
if (!csf.Open(_T("source.db", CFile::modeNoTruncate | CFile::typeBinary | CFile::modeRead, &e ))
{
     if (e.m_cause == CFileException::sharingViolation )
	AfxMessageBox(_T("Sharing Violation!!"));
}

I traced the program to filecore.cpp, looked like my program cannot obtain a file handle at this line:

HANDLE hFile = m_pTM != NULL ? 
	m_pTM->CreateFile(lpszFileName, dwAccess, dwShareMode, &sa, dwCreateFlag, dwFlags, NULL) :
		::CreateFile(lpszFileName, dwAccess, dwShareMode, &sa, dwCreateFlag, dwFlags, NULL);

Even though the source.db is in use, I should still be able to have read access to it, right?

Another observation that puzzles me is that the backup function works on another .db file created by the same program.

I've been searching on the web and tried everything I can. Would someone please give me some suggestion?

Thanks,

Helen

Re: CFile file handle problem

Chris Meech30-Jun-11 6:21

Chris Meech

30-Jun-11 6:21

TheHelenLee wrote:
Even though the source.db is in use, I should still be able to have read access to it, right?

Not necessarily. If some other process has opened the file exclusively, using the flags CFile::shareExclusive, that would prohibit all other access. Smile | :)

Chris Meech
I am Canadian. [heard in a local bar]

In theory there is no difference between theory and practice. In practice there is. [Yogi Berra]

posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]

Re: CFile file handle problem

TheHelenLee30-Jun-11 17:26

TheHelenLee

30-Jun-11 17:26

Chris,

My light bulb turned on when you mentioned about the CFile::shareExclusive flag. In my code to open file for reading, I didn't have CFile::shareDenyNone, I guess it defaults to shareExclusive when I don't specify it? After I set the flag, the program works. It looks like my program was stepping on its own foot.

I'm just still puzzled as to why it works for one file, but not the other when I don't use the shareDenyNone flag. Any ideas?

Thank you for helping me out, I feel so relief now that the problem is solved!! Big Grin | :-D

Help and Guidance for Access Database.

Le@rner29-Jun-11 22:50

Le@rner

29-Jun-11 22:50

Hi all,

i m start working on access database,i have no idea about this please help me for this.

and provide me info and guidance to establich database connection and execution of Query for insertion or retrivel of values in database.

thanks in advance

Re: Help and Guidance for Access Database.

Richard MacCutchan29-Jun-11 23:32

Richard MacCutchan

29-Jun-11 23:32

Le@rner wrote:
i m start working on access database,i have no idea about this

Then your best bet would be to do some research into databases in general and Access[^] in particular.

The best things in life are not things.

Re: Help and Guidance for Access Database.

Le@rner29-Jun-11 23:51

Le@rner

29-Jun-11 23:51

there different option for database connection and operations like DAO,ADO,ODBC,OLE DB etc .

please tell me which one is better to continue.

Re: Help and Guidance for Access Database.

Richard MacCutchan30-Jun-11 0:03

Richard MacCutchan

30-Jun-11 0:03

Le@rner wrote:
please tell me which one is better to continue.

Take a look at some of the links I found for you, and possibly some of the articles here on CodeProject; the answers are there.

The best things in life are not things.

Re: Help and Guidance for Access Database. [modified]

Le@rner30-Jun-11 0:52

Le@rner

30-Jun-11 0:52

if i am having an access file that is contains a table with some columns,

now odbc is fine for this or not?

i am choosing ODBC to continue is it ok.

modified on Thursday, June 30, 2011 8:24 AM

Re: Help and Guidance for Access Database.

David Crow30-Jun-11 8:15

David Crow

30-Jun-11 8:15

Le@rner wrote:
please tell me which one is better to continue.

Better for what? Each has its own strengths and weaknesses. You are the only one that knows your requirements so ultimately only you can decide which is better.

"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

"Some people are making such thorough preparation for rainy days that they aren't enjoying today's sunshine." - William Feather

How can and what type of dll is created by MFC to use in any language?

Le@rner29-Jun-11 21:41

Le@rner

29-Jun-11 21:41

Hi all,

i want to know what type of dll is created by MFC that is easily use by any language or platform.

i am working on MFC Application, here i want to create a dll of my application,now i want to use it in c#,VB or any other platform.

please help me how can i do this,

and also provide me info or guidance to use dll and importing and exporting of dll file.

thannks in advance.

i m waiting for ur valuable suggestion.

Re: How can and what type of dll is created by MFC to use in any language?

Richard MacCutchan29-Jun-11 23:30

Richard MacCutchan

29-Jun-11 23:30

You need to create a COM library for it to be used by other languages. Take a look at the articles section for help on COM.

The best things in life are not things.

Re: How can and what type of dll is created by MFC to use in any language?

Le@rner30-Jun-11 2:40

Le@rner

30-Jun-11 2:40

any other option?

Re: How can and what type of dll is created by MFC to use in any language?

Richard MacCutchan30-Jun-11 3:40

Richard MacCutchan

30-Jun-11 3:40

Not that I am aware of; unfortunately MFC is a very specialised framework and does not sit well with other languages. If you code in pure Win32 then you can access DLL's from .NET languages via the P/Invoke[^] mechanism, which is considerably easier.

The best things in life are not things.

Re: How can and what type of dll is created by MFC to use in any language?

Albert Holguin30-Jun-11 4:26

Albert Holguin

30-Jun-11 4:26

OP did mention cross platform support (or did he mean programming language D'Oh! | :doh:

), as far as I know, COM doesn't have the cross-platform popularity or support...

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