C / C++ / MFC

16-Jun-04 1:27

Hi guys,

I am creating a CEdit derived class and I notice the overriden OnPaint() will not get called if I don't use Create() to create the control. If I draw a CEdit control on my dialog from Resource Editor and uses it by a pointer (assuming the CEdit derived class is CMyEdit:

	pMyEdit = (CMyEdit *)GetDlgItem(IDC_MY_EDIT);
	pMyEdit->SetFont(&editFont, TRUE);
	pMyEdit->SetWindowText(_T("Testing"));
</code>

the OnPaint() is never called. But the following will do:

	pMyEdit->Create(dwStyle, Rect, this, IDC_MY_EDIT);
</code>

Why is that? What does it mean when a control has been created from the resource editor, compared to created manually in the code?

Also, is there a member function for CEdit that can be overriden to let redraw of only the content (text) and background colour? Pretty much the same as DrawItem() for CListCtrl.

Thanks alot

valikac16-Jun-04 3:27

valikac

16-Jun-04 3:27

The two member functions SetFont() and SetWindowText() send different messages to the edit window rather than WM_PAINT. For example, SetWindowText() sends WM_SETTEXT.

You can override OnDraw() in the edit view.

Kuphryn

J.B.16-Jun-04 4:33

16-Jun-04 4:33

Thanks kuphryn,

So it seems that for CEdit control not all display related operations will go through WM_PAINT (i.e. in MFC, OnPaint()) at the end. I found it a bit odd: using different ways when they all lead to the CEdit control's display needing to be refreshed eventually.

I happened to find this post[^] which the guy asks exactly what I was looking. The control is the CEdit type, so I won't be able to overriding OnDraw(). I need something that has the appearance and functionalities of the CEdit and which then I can have/create a general function to customise its output(display) content (e.g. text, background colours), once for all.

Thanks.

valikac16-Jun-04 4:56

valikac

16-Jun-04 4:56

It is possible to override OnDraw() in an edit view. What type of CEdit object is it?

Kuphryn

J.B.16-Jun-04 5:37

16-Jun-04 5:37

Hi Kuphryn,

I creat and use the CEdit control from the resource view, it's Edit Control by the name. I'd use a CEdit derived class with it, like in my original post. And I'm hoping to handle the text content painting operation myself. I looked on MSDN and I couldn't find possible OnDraw() for CEdit, can you kindly give me an example?

Thanks again.

valikac16-Jun-04 6:04

valikac

16-Jun-04 6:04

Okay.

In that case, add a message handler to WM_PAINT in the CEdit subclass.

Kuphryn

J.B.16-Jun-04 19:11

VS7 c++ to use old mfc dll's

16-Jun-04 19:11

Hi Kuphryn,

perhaps my original post wasn't not clear. That's exactly what I was doing in the first place, to add the WM_PAINT handler by overriding OnPaint() in the sub-class.

The problem I am having is that OnPaint() is never called if I use the sub-class directly with the control I created from the resource view. But if I explicitly create the control in run-time using Create(), OnPant() gets called no problem. You can look my first post for the example.

Thanks.

Ni@m16-Jun-04 1:19

Ni@m

16-Jun-04 1:19

How to configure project, to run it not using new mfc(VS7) librarys? 'cos required mfc about 1 MB. And in static mode it's too big.

Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

vgrigor116-Jun-04 0:59

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

16-Jun-04 0:59

Are there samples for programmatically Sharing
Directories Creating and Creating new Users in Windows ?

How to do it better - using
ADSI, LDAP, or NETapi ?

Thanks you.

David Crow16-Jun-04 3:17

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

16-Jun-04 3:17

vgrigor1 wrote:
Are there samples for programmatically Sharing
Directories...

Do you mean NetShareAdd()?

vgrigor1 wrote:
...and Creating new Users in Windows ?

How about NetUserAdd()?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

vgrigor116-Jun-04 3:58

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

16-Jun-04 3:58

Thanks you,

I only begin to know this methods from NetApi.

But I need to use WMI instrumentation,
so I think WMI- to ADSI methods.

Can you help with useful sample and articles
for WMI and ADSI.

Best ones in MSDN(but I also read, or else.

Thanks you.

David Crow16-Jun-04 4:46

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

16-Jun-04 4:46

vgrigor1 wrote:
Can you help with useful sample and articles
for WMI...

Which WMI class(es) are you interested in?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

vgrigor116-Jun-04 5:01

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

16-Jun-04 5:01

Any C++ sdamples.

= common working methods.

Better about ADSI and user management.

David Crow16-Jun-04 6:09

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

16-Jun-04 6:09

vgrigor1 wrote:
Any C++ sdamples.

Are you wanting C++ samples that show how to use NetShareAdd() and NetUserAdd()?

vgrigor1 wrote:
= common working methods.

Common to whom?

vgrigor1 wrote:
Better about ADSI and user management.

This makes no sense.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

vgrigor117-Jun-04 0:15

Re: Are there samples for Sharing Directories Creating and Creating new Users in Windows (OS) ?

17-Jun-04 0:15

I want C++ samples for WMI with ADSI extensions:

to share directory and add user.

IT is good to get sample for this on other languages,
but for WMI technology.

read this more:
WMI sample WMI sample WMI sample WMI sample

David Crow17-Jun-04 2:51