C / C++ / MFC

Re: Menu in SDI Application

2-Mar-05 3:24

void CBaseView::OnUpdateItemDelete(CCmdUI* pCmdUI) 
{    
    pCmdUI->Enable(! m_bCalculating);
}
 
void CBaseView::Calculations( void ) 
{
    m_bCalculating = true;
    ...
    m_bCalculating = false;
}

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Maximilien2-Mar-05 3:27

Maximilien

2-Mar-05 3:27

the menu item is only visible when you display the menu, and this is when the ON_UPDATE_COMMAND_UI.

if you have toolbars with the same ID, the ON_UPDATE_COMMAND_UI will be called eventually, and the button will be enable ( or disable ) at that time.

in your "other" function, you will need to set a class variable that will indicate if the menu ( or toolbar item ) will be enable or not; and processed in the ON_UPDATE_COMMAND_UI handler.

Maximilien Lincourt
Your Head A Splode - Strong Bad

save xml atributtes by c++

mikelman2-Mar-05 0:58

mikelman

2-Mar-05 0:58

i am in a project and i would like to save the attributes from an xml file in another file.in that xml file we have results from some texts and we need to analyze them by a program in c++DOM but i need to save only one type of nodes and its attributes.If someone can show me an example of a program that make similar things i would thank him.
Thank you very much

one new student in c++

Re: save xml atributtes by c++

ThatsAlok2-Mar-05 17:28

ThatsAlok

2-Mar-05 17:28

You have manually Retrieved the Attribute from XML and save it to Text file.

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How to create a CEdit derived class

misturas2-Mar-05 0:50

misturas

2-Mar-05 0:50

Hi to all,
I would like to create a CEDit derived class with the following caratteristic:
Every time the user digits a char in the edit box, the class should control
the value of that char and compare it with a defined list of allowed chars
If the char doesn't match the list, char should not be accepted and a MessageBeep should be prompt
Anyone can help me?
Thanks in advance

Jetli Jerry2-Mar-05 1:30

Jetli Jerry

2-Mar-05 1:30

Insert New Class

give new name for class and derived it from CEdit by selecting it from combobox.

And write your validation code in OnChar() ( u have to add this fucntion thru class wizard WM_CHAR )

Jetli
Constant Thing In World Is Change.

Cedric Moonen2-Mar-05 1:33

Cedric Moonen

2-Mar-05 1:33

Hi,

It is quite simpe to do: with Class Wizard, create your own class (call it CMyEdit for example) and make it inherits from CEdit. Then override the OnChar method (not 100% sure about the function name but I think this is good). In this function, compare the char entered with those in your list. If it is not allowed, don't call OnChar from the parent (CEdit::OnChar() ). Otherwise call it and it will add the char in the edit box.

You will probably need to add a function to send your list to the class also. Call this function in the initalisation of your dialog box that contains your edit control.

Now, to add your specific control, use the resource editor and paste a standard edit, and with class wizard, you will have the possibility to choose your class to be associated with the control.

That's it
Hope this helps

misturas2-Mar-05 2:22

misturas

2-Mar-05 2:22

Thanks to the users who replied me
You're so great!

add a button on Save As dialogue tool bar

PJ Arends2-Mar-05 6:31

PJ Arends

2-Mar-05 6:31

Just a heads up, if you do your verification in OnChar your users will be able to enter invalid characters via copy 'n paste. You are much better off handling the verification in the OnUpdate (EN_UPDATE) handler. Check out the edit controls section here on CP for validating edit controls for sample code.

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MihaiChioariu2-Mar-05 0:42

MihaiChioariu

2-Mar-05 0:42

I want to add a button on windows Save As dialogue tool bar. I need information (name, path) about current document (which send Save As dialogue). From any documents I want to save them automatically in a fixed folder(s).

Best regards,
Mihai

mihai_chioariu

how to draw the resizing dialog border?

lowiq2-Mar-05 0:34

lowiq

2-Mar-05 0:34

I have custom draw a dialog as my app's main dialog. I also want my dialog support resizing, so I choose the resizing style in resource editor. And in order to hide the ugly resizing border, I also draw the resizing border by my own. But when my app lost it foucs, the ugly resizing border also appear!!
I also override the OnNcPaint, but seems useless.
So would any one give any advice? any comment is appreciate!
Thanks a lot. pls, now I really do not know how to do.

Keystate of mutliple keys like LAlt+Tab

vidhyas2-Mar-05 0:28

vidhyas

2-Mar-05 0:28

How to retrive the key state of modifier keys combined with an other key like Tab.
For example .. to retrieve Alt+Tab keystate. ie. Alt-press +Tab press + Tab release + Alt release ??
Are there any ways...
Plz let me know
Thank you

vidhya

Re: Keystate of mutliple keys like LAlt+Tab

Blake Miller2-Mar-05 8:47

Blake Miller

2-Mar-05 8:47

GetAsyncKeyState Function
The GetAsyncKeyState function determines whether a key is up or down at the time the function is called, and whether the key was pressed after a previous call to GetAsyncKeyState.

How to upload file

Mayank Goyal2-Mar-05 0:25

Mayank Goyal

2-Mar-05 0:25

Hi, I need to upload TEXT files to an IIS server(ASP.NET, c#) from my MFC code. I also will be writting that code to accept the files at the server end. Can some one suggest how I can go ahead and upload files to the server.

Mayank Goyal

Re: How to upload file

ThatsAlok2-Mar-05 2:29

ThatsAlok

2-Mar-05 2:29

Look for the Win32 Based Api for FTP transfer,Some of
them are listed here

FtpPutFile
FtpGetFile

or For MFC Based FTP class

CFtpConnection
CFtpFileFind

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Re: How to upload file

Mayank Goyal2-Mar-05 16:06

Mayank Goyal

2-Mar-05 16:06

Well I do not have the option of using ftp as it is blocked Frown | :(

I need to do it with HTTP only.

Mayank Goyal

Re: How to upload file

ThatsAlok2-Mar-05 17:38

ThatsAlok

2-Mar-05 17:38

Mayank Goyal wrote:
I do not have the option of using ftp as it is blocked

Hain Are you making Spy Software Big Grin | :-D

,Just Joking. but i am making that type of software Laugh | :laugh:

.

Any way here is you answer just post your text file to the the remote server. here this is link
http://www.codeproject.com/internet/amhttputils.asp
is handy wrapper class that will help you in posting text file to server using HTTP

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Just one document open at the same time

senn2-Mar-05 0:18

2-Mar-05 0:18

Hello

I have a MDI application. Usely the user can open more then one document (CDocument) at the same time. Now I will open just one document at the same time. How can I block to open a secound document?

thanks for help Ernst

David Crow2-Mar-05 2:26

2-Mar-05 2:26

Are you wanting your MDI application to behave like an SDI application?

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

senn2-Mar-05 2:37

2-Mar-05 2:37

Hello David

I will no change to a SDI. I will just open one document (with the same template class) at the same time.

regards Ernst

David Crow2-Mar-05 2:56

2-Mar-05 2:56

Rather than allowing the user to select a second file only to tell them it is not possible, why not just disable the File/Open menu option altogether when a file/document is open?

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

senn2-Mar-05 3:16

2-Mar-05 3:16

This would be a possibility. But not for every case. Becaus I have enabled the user to do "file drag" into the application. So the user don't need the open button to open a document. Do you know a way where I can check all opened document before a new document is create?

Ernst

David Crow2-Mar-05 8:31

2-Mar-05 8:31

senn wrote:
Do you know a way where I can check all opened document before a new document is create?

Try the OpenDocumentFile() method.

Another option would be to close the opened file before attempting to open another.

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

senn2-Mar-05 19:47