Re: Win32 CreateWindow function - C / C++ / MFC Discussion Boards

Re: exe file format

David Crow2-Mar-05 2:50

David Crow

2-Mar-05 2:50

You'll want to study up on the PE file format. See here and here.

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

Re: exe file format

V.G2-Mar-05 3:57

V.G

2-Mar-05 3:57

Thanks !can u tell me where can i find a free demo version of a boundschecker? - V.G

Re: exe file format

David Crow2-Mar-05 4:06

David Crow

2-Mar-05 4:06

Does one even exist? Have you checked the Compuware site?

http://www.codeguru.com/Cpp/V-S/debug/debuggers/article.php/c4417/

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

Re: exe file format

Anonymous2-Mar-05 3:35

Anonymous

2-Mar-05 3:35

See this CodeProject article[^]

Re: exe file format

V.G2-Mar-05 3:50

V.G

2-Mar-05 3:50

Thanks !can u tell me where can i find a free demo version of a boundschecker? - V.G

Win32 CreateWindow function

Cedric Moonen2-Mar-05 1:58

Cedric Moonen

2-Mar-05 1:58

Hello,

I use the Win32 API to make a small application (so, no MFC !). I would like to have a dialog resource displayed on the main window. At the begining of my program, I call CreateWindow and supply my own message pump. But how can I do to show a dialog box as main window ? Do I need to hide the window created with CreateWindow and then create a dialog box using the DialogBox function ?

Thanks

Re: Win32 CreateWindow function

Antony M Kancidrowski2-Mar-05 4:42

Antony M Kancidrowski

2-Mar-05 4:42

Since you are wanting to create a lightweight GUI have you considered looking at the WTL?

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)

Re: Win32 CreateWindow function

Cedric Moonen2-Mar-05 5:16

Cedric Moonen

2-Mar-05 5:16

Thanks for your response but I don't use Visual Studio. I'm using Dev-C++ and I don't know if it supports the WTL (I'm new to WTL...). I will take a look

Thanks

Re: Win32 CreateWindow function

Antony M Kancidrowski2-Mar-05 11:37

Antony M Kancidrowski

2-Mar-05 11:37

cedric moonen wrote:
I'm using Dev-C++ and I don't know if it supports the WTL

Um, no neither do I. I have not tried to use it outside of Microsoft IDEs

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)

Menu in SDI Application

zahid_ash2-Mar-05 1:33

zahid_ash

2-Mar-05 1:33

Hi,

To show the menu item in SSI application , Its Handler must be added.

I want to Inactive the Menu Item under some event .

Lets say on Clicking a button in

OnBtnShowClick ()
{
// Here i want to Inactive any Menu Item .
// Menu is ... File -> Show File , want to Inactive "Show File" Item
}

what should i do ?

Thanx

Regards.

Re: Menu in SDI Application

David Crow2-Mar-05 2:24

David Crow

2-Mar-05 2:24

You need an ON_UPDATE_COMMAND_UI() handler. Here's an example for a menu item named "Delete":

BEGIN_MESSAGE_MAP(CBaseView, CListView)
    //{{AFX_MSG_MAP(CBaseView)
    ON_UPDATE_COMMAND_UI(ID_ITEM_DELETE, OnUpdateItemDelete)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()
 
void CBaseView::OnUpdateItemDelete(CCmdUI* pCmdUI) 
{
    CListCtrl   &ctrlList = GetListCtrl();
 
    pCmdUI->Enable(ctrlList.GetNextItem(-1, LVIS_SELECTED) != -1);	
}

What this does is disable the "Delete" menu item if no items in the list view have been selected.

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

Re: Menu in SDI Application

zahid_ash2-Mar-05 3:12

zahid_ash

2-Mar-05 3:12

Its when the ON_UPDATE_COMMAND_UI(ID_ITEM_DELETE, OnUpdateItemDelete) is fired .

But i want to Inactive it in some other function that is doing calculation etc.
How can i ?

thanx

Regards.

Re: Menu in SDI Application

David Crow2-Mar-05 3:24

David Crow

2-Mar-05 3:24

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

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

Re: Menu in SDI Application

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

Re: How to create a CEdit derived class

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.

Re: How to create a CEdit derived class

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

Re: How to create a CEdit derived class

misturas2-Mar-05 2:22

misturas

2-Mar-05 2:22

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

Re: How to create a CEdit derived class

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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add a button on Save As dialogue tool bar

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.

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