C / C++ / MFC Discussion Boards

Which Style to avoid resizing of a window

Braulio Dez17-Jan-02 21:22

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

Re: DoEvents Equiv in VC++

Jens Kreiensiek18-Jan-02 0:27

Jens Kreiensiek

18-Jan-02 0:27

the mfc-way:

void DoEvents()
{
	MSG m;
	while(::PeekMessage(&m, 0, 0, 0, PM_NOREMOVE))
		AfxGetApp()->PumpMessage();

	LONG lIdle = 0;
	while(AfxGetApp()->OnIdle(lIdle++ ))
		;  
}

have fun...
jk Cool | :cool:

Direct X

17-Jan-02 16:27

I am in the preliminary stages of creating a media player. But i need some help in getting information on how to handle Direct X in Visual C++. Where to use it, and just general attributes as such. Any help would be greatly appreciated. Cool | :cool:

BH_BAD

Re: Direct X

Jonathon Lockett17-Jan-02 16:47

Jonathon Lockett

17-Jan-02 16:47

I presume you want to use Directsound ? There's an mp3player that uses DS on CP, search for MPEG.

If you use DirectShow, your media player will essentially be your dialog running Media Player as a COM object.

Jonathon

Re: Direct X

Vladimir Georgiev18-Jan-02 2:02

Vladimir Georgiev

18-Jan-02 2:02

You need to download the DirectX SDK from a Microsoft site... A .CHM file goes with it which explains the fundamentals of all DX components (DirectSound and DirectShow will be there too). there are some nice tutorials, too.
So, do it and start reading...

"Needless redundancy is the hobgoblin of software engineering." - Peter Darnell

CFileDialog - how to change background color?

17-Jan-02 14:44

I want to change the background color of the standard CFileDialog to white, but I can't figure out how to do that...
I derived a my own class CMyFileDialog from CFileDialog and tried to handle OnCtlColor() in there but that fuction doesn't get called at all???

Does one of the guru's here know how to change the background color in CFileDialog ?

Thanks a bunch!

Re: CFileDialog - how to change background color?

Rickard Andersson²⁰18-Jan-02 0:46

Rickard Andersson²⁰

18-Jan-02 0:46

If it is possible to do that, try WM_ERASEBKGND instead.

------------------------------
©0d3 ©®4©k3® - That's me! Smile | :)

------------------------------

Unicode (on Win9x)

17-Jan-02 11:55

Hey all!

I noticed that IE can display text in foreign languages on buttons, in list boxes and as HTML (rich text), even on Win9X platforms (with no special foreign-language installations).

I would like to incorporate similar functionality in my application. I managed to write SOME Unicode text on the Rich Edit control (Hebrew, Arabic, no Chinese though). I didn't manage to display foreign languages in the List View common control (tried using the CCM_SETUNICODEFORMAT message, didn't help), and I have no idea how to write such text on a simple button.

Any ideas?

Thanks!

Re: Unicode (on Win9x)

Jens Kreiensiek18-Jan-02 0:31

Jens Kreiensiek

18-Jan-02 0:31

hi,

make your button ownerdraw and use TextOutW() to draw the text...

have fun...
jk Cool | :cool:

Re: Unicode (on Win9x)

18-Jan-02 3:34

Hey, thanks!

I'll try that, I think it would help.
I have three more questions though.

I guess I would have to change the font before writing the string. My application doesn't know in advance what language will be displayed. How do I dynamically find out which font to load? Isn't there some font that encodes ALL languages?

Secondly, suppose I have a Unicode string that is encoded in a single language. How do I find out which language it is encoded with? (Do I have to compare the characters to the Unicode table of languages, or is there a simpler way to do that?)

Last question - do I also have to take care of font selection when I work with the Rich Edit control, or can it select the proper font automatically?

Thank you very much!!
Oz

Re: Unicode (on Win9x)

Jens Kreiensiek18-Jan-02 3:57

Jens Kreiensiek

18-Jan-02 3:57

Hi Oz,

1) you should select the appropriate font for the respective language. "Arial" covers the most eastern and western languages including cyrillic, greek, and turkish. For asian languages you have to use different fonts: japanese - "MS Gothic", chinese - "MS Hei", korean - "GulimChe"...

As far as I know, there's no font that covers all unicode languages at once.

2) I guess you have no chance to retrieve a specific language from a unicode string by comparing the character values. There are too many characters which are used in more than one language. Just think about an 'e' ...

3) I haven't much experience with the rich edit control, sorry. But I remember that one must at least set the right font codepage for a proper display...

have fun...
jk Cool | :cool:

request to all winsock programmers

Kuniva17-Jan-02 10:07

Kuniva

17-Jan-02 10:07

ok, i'm posting this because i've been looking for this for so long...
Could someone please post an article explaining how to transfer files over a tcp winsock connection???? isn't this a very commonly used winsock-thing??? i went to codeguru and there was this short article but it didn't compile right and it was console based. I'd really like to know how to transfer a file, also larger files. I just dont understand blocking sockets very well.

Oh and also, what in heaven is Visual Studio .NET ??? is it just another IDE like visual studio C++ ?? or what?

THANKS
(please explain about the file transfer as i've been at this for way too long already.)

Kuniva
--------------------------------------------
God gave man a penis and a brain but not enough blood to make both of 'em work at the same time.

Re: request to all winsock programmers

Jamie Hale18-Jan-02 9:11

Jamie Hale

18-Jan-02 9:11

Look up CFtpConnection, CHttpConnection and CSocket in the MSDN library. Depending on the type of file transfer you need to do, at least one of these will be helpful. And follow some of the "How to" and "Example" links too.

J

rotating objects in OpenGL

Rajveer17-Jan-02 9:58

Rajveer

17-Jan-02 9:58

How do I rotate a shape so that I can watch it actually rotate from its original position up to the angle of rotation I have specified. I always see the shape already in its final position when I run (not what I want).

Re: rotating objects in OpenGL

l a u r e n18-Jan-02 4:45

l a u r e n

18-Jan-02 4:45

ummm forgive me if i'm being too simplistic but...

your document holds the shape data ... your view shows it when an OnDraw() is handled

after initializing your shape co-ords do the Invalidate() thing on the view
do one stage of the transform
do the Invalidate thing()
do another stage of the transform
do the Invalidate() thing
etc
etc

like i said if i got the level of answer wrong forgive me

---
"every year we invent better idiot proof systems and every year they invent better idiots ... and the linux zealots still aren't being sterilized"

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