Terminology & Books - C / C++ / MFC Discussion Boards

Ken Goguen18-Jan-02 4:40

18-Jan-02 4:40

I have a simple CListCtrl that allows the user to edit the item (0). To do this the user needs to click on the item once or twice to get into "Edit" mode.

Is there a way to allow the user other ways to get into edit mode? Like pressing the right arrow key (VK_RIGHT) or something?

-kg

Ken Goguen

Re: Editing CListCtrl item

Joaquín M López Muñoz18-Jan-02 4:54

Joaquín M López Muñoz

18-Jan-02 4:54

Sure, you can use something like this in the appropriate handler:

int nItem=m_list.GetNextItem(-1,LVNI_SELECTED);
if(nItem>=0){
  GotoDlgCtrl(&m_list); // security measure, may not be necessary
  m_list.EditLabel(nItem);
}

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Editing CListCtrl item

Ken Goguen18-Jan-02 4:54

Ken Goguen

18-Jan-02 4:54

Sometimes we over look the simple things. Thanks.

-kg

Ken Goguen

Accessing a COM Object in a DLL

Steve Thresher18-Jan-02 2:34

Steve Thresher

18-Jan-02 2:34

I have a DLL that contains a COM object. Can anybody give me some pointers on how to create an instance of that object and call one of its methods from a Win32 C++ program. The object was originally written using Visual Basic but HAS to be used in a program written in C++ using just Win32 API not MFC. I have full access to the Visual Basic source and a small understanding of COM.

Thanks in advance for any help you can give.

Steve.

Re: Accessing a COM Object in a DLL

Michael P Butler18-Jan-02 2:49

Michael P Butler

18-Jan-02 2:49

If you know the CLSID and the IID, you can use CoCreateInstance. Do a search on MSDN for it. I can't remember if the #import works on DLL's but it does make life easier.

Michael Smile | :)

Re: Accessing a COM Object in a DLL

18-Jan-02 3:06

You can use my XYDispDriver class to access the com object. Or if you are comfortable with ATL, use the #import directive.

Good luck. Smile | :)

HOWTO: Create Fonts

18-Jan-02 1:43

Hi Folks,

What the proper way of creating fonts so that their size don't change during a zoom in/out printing preview?

Cheers,
- xico -

Terminology & Books

Jon Hulatt18-Jan-02 0:37

Jon Hulatt

18-Jan-02 0:37

Hi all,

I'm looking at creating one of those explorer bars in ie. Not done anything like this before, more of an MFC person up to now.

First question is, what am I trying to do? COM? COM+? ActiveX ? there are too many different terms and i'm not sure which one is relevant!

secondly, what books are a good starting point for the above?

Thanks

Jon

PS.. I've read the related articles on CP already, but still want a book.

Sorry to dissapoint you all with my lack of a witty or poignant signature.

Re: Terminology & Books

Michael Dunn18-Jan-02 13:13

Michael Dunn

18-Jan-02 13:13

Explorer bars are COM objects. As for where to start, my Intro to COM article, then tutorials on Explorer bars by me and Erik Thompson.

--Mike--
My really out-of-date homepage
"Hey, you wanna go to the Espresso Pump and get sugared up on mochas?"
-- Willow Rosenberg
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan.

SendMessage(WM_MDIACTIVATE)

18-Jan-02 0:16

Hi,

I am trying to activate a CView derived MDI window from a CControlBar containing an image list of view thumbnails. When I double click on the thumb I want to activate the view, i.e. bring it to the top. I cannot seem to get the SendCommand message right. Can someone help me with this.

::SendMessage(???,WM_MDIACTIVATE,(WPARAM)pTheViewToActivate,0);

Where do I need to send the message to for it to process the MDI activate message? MSDN also seems to be confused about the lparam, is it needed or not?

Many thanks

Matthew

Re: SendMessage(WM_MDIACTIVATE)

Jon Hulatt18-Jan-02 0:32

Jon Hulatt

18-Jan-02 0:32

(WPARAM)pTheViewToActivate looks like you're trying to send a CView pointer as the wParam. You should be sending an hWnd (window handle) instead.

But that's besides the point, because i think that CMDIChildWnd::MDIActivate() does exactly what you want.

jon

Sorry to dissapoint you all with my lack of a witty or poignant signature.

Re: SendMessage(WM_MDIACTIVATE)

Jon Hulatt18-Jan-02 0:33

Jon Hulatt

18-Jan-02 0:33

Ooops, i meant CMDIFrameWnd::MDIActivate()

Sorry to dissapoint you all with my lack of a witty or poignant signature.

Re: SendMessage(WM_MDIACTIVATE)

18-Jan-02 3:19

Thanks for the pointer. It was a little more involved for me due to my requirements but it all resulted in a call to

CMDIChildWnd::MDIActivate

thanks again

Matthew

Ms Word Automation, moving and resizing word window...

Braulio Dez18-Jan-02 0:13

Braulio Dez

18-Jan-02 0:13

Hi,

I´m running MS Word embedded ( I mean like if it where an standalone application), and I want to show the Ms Word window at the left side of a window of my application ( just one view with some buttons to add some tables and that stuff).

I have seen that from the Application object word has two methods, "Move" and "Resize", but the problem that I found is that the coordinates seems not be in Pixels, do you know which coordinate system uses Word for that ?
( and how can I convert from Pixels to word thing coordinates... Wink | ;-)

)

Thanks, Bye !
Braulio

Which Style to avoid resizing of a window

Braulio Dez17-Jan-02 21:22

Braulio Dez

17-Jan-02 21:22

Hi !

Which style ( or which things override) I have to modify to avoid that my window is resized ( I have a frame and sometimes when some reasons occurs I want to keep fixed the size of the frame).

Thanks, Bye !
Braulio

Re: Which Style to avoid resizing of a window

Nish Nishant17-Jan-02 22:00

Nish Nishant

17-Jan-02 22:00

Put this line in CMainFrame::PreCreateWindow

cs.style &= ~WS_THICKFRAME;

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: Which Style to avoid resizing of a window

Braulio Dez17-Jan-02 22:15

Braulio Dez

17-Jan-02 22:15

Thanks Nish !

One more thing.... I would like that the user could not resize Horizontally but vertically yes, is that possible ?, Thanks !
Braulio

Re: Which Style to avoid resizing of a window

Nish Nishant17-Jan-02 22:47

Nish Nishant

17-Jan-02 22:47

Yes. Override OnSizing. Not OnSize but OnSizing.

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

One more thing,...

Braulio Dez17-Jan-02 22:12

Braulio Dez

17-Jan-02 22:12

Hi,

I have found out something that works fine and is:

ModifyStyle( WS_THICKFRAME, 0);

But... I would like to allow the user resize vertical but not horiz., how can I do that ?

Thanks, Bye !
Braulio

Re: Which Style to avoid resizing of a window

Kannan Kalyanaraman18-Jan-02 1:41

Kannan Kalyanaraman

18-Jan-02 1:41

You can try doing a hit test for non-client areas of a window and then based on the hit param decide on whether to allow resize or not.

Hope this helps

Cheers
Kannan

Re: Which Style to avoid resizing of a window

Michael Dunn18-Jan-02 13:20

Michael Dunn

18-Jan-02 13:20

To allow resizing in only one direction, handle WM_NCHITTEST and change the return value from the default window procedure if necessary. For example, to allow only horizontal resizing:

UINT CMyWnd::OnNcHitTest ( CPoint pt )
{
UINT uRet = CWnd::OnNcHitTest(pt);
 
  switch ( uRet )
    {
    case HTTOP:  case HTBOTTOM:
      uRet = HTNOWHERE;
    break;
 
    case HTBOTTOMLEFT:  case HTTOPLEFT:
      uRet = HTLEFT;
    break;
 
    case HTBOTTOMRIGHT:  case HTTOPRIGHT:
      uRet = HTRIGHT;
    break;
    }
 
  return uRet;
}

This changes the hit-test result so that when the cursor is in the top/bottom borders, it doesn't change to the resizing arrows.

--Mike--
My really out-of-date homepage
"Hey, you wanna go to the Espresso Pump and get sugared up on mochas?"
-- Willow Rosenberg
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan.

Re: Which Style to avoid resizing of a window

Braulio Dez20-Jan-02 20:55

Braulio Dez

20-Jan-02 20:55

Thanks !!

Seeya !
Braulio

DoEvents Equiv in VC++

Nick Jacobs17-Jan-02 16:59

Nick Jacobs

17-Jan-02 16:59

Ok, it's 11:00pm and I've been slinging code in front of this puter all day. What I can't remember is, what's the equivalent of a DoEvents for VC? What I need to do is to have the display refresh and respond to events while in a loop.

VB uses DoEvents to do this.

Just can't think this late at night.

Anybody wanna bail me out?

Thanks,
Nick

Re: DoEvents Equiv in VC++

Christian Graus17-Jan-02 17:06

Christian Graus

17-Jan-02 17:06

To refresh the screen, call Invalidate(). To respond to events while in a loop you should really have a UI thread and a worker thread. Otherwise the loop will stop the GUI from responding.

Christian

I have come to clean zee pooollll. - Michael Martin Dec 30, 2001

Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now

Re: DoEvents Equiv in VC++

Nish Nishant17-Jan-02 18:24

Nish Nishant

17-Jan-02 18:24

while (GetMessage(&msg, NULL, 0, 0)) 
{
	TranslateMessage(&msg);
	DispatchMessage(&msg);
}

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

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