Re: Add scrollbars dynamically - C / C++ / MFC Discussion Boards

bosfan7-Aug-08 0:00

7-Aug-08 0:00

Hello,
is there any way to catch the text label from a CTabCtrl,
for example if i have a 2 or more tab on my CTabCtrl?
Not how to change the text of a tab, just to catch the label as control referenz?
Maybe something like GetDlgItem? Roll eyes | :rolleyes:

thanks for help
termal

Re: Use textlabel from CTabCtrl?

_AnsHUMAN_ 7-Aug-08 0:31

_AnsHUMAN_

7-Aug-08 0:31

I am not very sure of your needs, but are you looking for GetWindowText/SetWindowText for the control

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Use textlabel from CTabCtrl?

Perspx7-Aug-08 0:40

Perspx

7-Aug-08 0:40

You want to use CTabCtrl::GetItem; something like:

TCITEM tcitem;  //TCITEM structure

tabctrl->GetItem(0, &tcitem); //Gets information about the first tab

Then to get the tab label you use tcitem.pszText.

Documentation here

Hope this helps,
--Perspx

"The Blue Screen of Death, also known as The Blue Screen of Doom, the "Blue Screen of Fun", "Phatul Exception: The WRECKening" and "Windows Vista", is a multi award-winning game first developed in 1995 by Microsoft" - Uncyclopedia

Add scrollbars dynamically

hari_honey6-Aug-08 23:51

hari_honey

6-Aug-08 23:51

Hi,
I my dialog i have many controls. I am disigning this in 1024*768 resolution. Now my problem is in this resolution it doesnt need any scroll bars all the control will fix in the screen exactly. But if i change the resoltion to 800*600 some part of dialog is becoming invisible. So to add scrollbars i have used ScrollDialog given in this http://www.codeguru.com/cpp/w-d/dis...icle.php/c1859/ . In this code by default Maximize and restore buttons are enabled. I have tried so many ways to diable those. but it is not working. Can any one help me?
Thanks in advance. Smile | :)

Re: Add scrollbars dynamically

SandipG 6-Aug-08 23:57

SandipG

6-Aug-08 23:57

does ModifyStyle(WS_MAXIMIZEBOX,0); help??

Regards,
Sandip.

Re: Add scrollbars dynamically

hari_honey7-Aug-08 1:54

hari_honey

7-Aug-08 1:54

Thank you it is disabling the maximize button. But how to disable the resize option.

Re: Add scrollbars dynamically

SandipG 7-Aug-08 2:13

SandipG

7-Aug-08 2:13

hari_honey wrote:
resize option.
Quote Selected Text

do you mean resize by dragging the window ??
I am not sure but you can try removing following styles using same function
WS_THICKFRAME/WS_SIZEBOX. Let me know if it works.

Regards,
Sandip.

Re: Add scrollbars dynamically

hari_honey20-Oct-08 20:21

hari_honey

20-Oct-08 20:21

Yes i f we use WS_SIZEBOX with the same function it will remove resize also.

xml lib

duta6-Aug-08 23:37

duta

6-Aug-08 23:37

Hi there

I need to make an application which saves the output as a XML file. Can you recommend me a good XML lib?

I'm using VC++. I don't know MFC, and I prefer an API based lib. I've find limxml2, but I have problems installing it.

Can you also provide me a good link or resource about how can I use such libraries?

many thanks

Re: xml lib

Cedric Moonen6-Aug-08 23:40

Cedric Moonen

6-Aug-08 23:40

I used tinyXML[^] before. It's a quite easy to use and lightweight library.

Cédric Moonen
Software developer

Charting control [v1.4]
OpenGL game tutorial in C++

Re: xml lib

Prasann Mayekar7-Aug-08 22:46

Prasann Mayekar

7-Aug-08 22:46

u can use a c# dll into ur vc++ program for reading / writing xml using .net classes like XmlSerializer (System.Xml.Serialization)

only thing u need to compile using /clr option

Pras
enjoy

Re: xml lib

Hamid_RT7-Aug-08 23:42

Hamid_RT

7-Aug-08 23:42

See here[^].

providing implementation of virtual BOOL OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) causes loss of style

Sternocera6-Aug-08 23:15

Sternocera

6-Aug-08 23:15

Hello,

I've created an implementaion of virtual BOOL OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) for my CFrameWnd derived class. In this way, I can later vary which view is displayed:

BOOL CChildWnd::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
	m_pReportView = new CReportView;
	m_pReportView->Create(NULL, NULL, 0L, CFrameWnd::rectDefault, this,
	VIEW_REPORT, pContext);
	SetActiveView(m_pReportView);
	m_pReportView->ShowWindow(SW_SHOW);
	m_pReportView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
        // More views...

	return TRUE;
}

This works, and works well. However, when I do this, for whatever reason I lose the Frame's previous style - The toolbar becomes sunken. Commenting out my implementation, the style immediately returns to normal. How can I do all this, while not having the toolbar become sunken?

Thanks,
Sternocera

Re: providing implementation of virtual BOOL OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) causes loss of style

Sternocera7-Aug-08 0:34

Sternocera

7-Aug-08 0:34

My CToolbar derived class is created like this - I'm not sure how relevant that is, but I include it case it is:

int CChildWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
return -1;

if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | TBSTYLE_TRANSPARENT | WS_VISIBLE | CBRS_TOP
| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
!m_wndToolBar.LoadToolBar(IDR_CHILD_FRAME))
{
TRACE0("Failed to create toolbar\n");
return -1; // fail to create
}

if (!m_wndStatusBar.Create(this))
{
TRACE0("Failed to create status bar\n");
return -1; // fail to create
}
// attach the hicolor bitmaps to the toolbar
AttachToolbarImages (IDB_HICOLORTOOLBAR_CHILD,
IDB_HICOLORTOOLBARDISABLED_CHILD,
IDB_HICOLORTOOLBARHOT_CHILD);

return 0;
}

Thanks,
Sternocera

Re: providing implementation of virtual BOOL OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) causes loss of style

Sternocera7-Aug-08 0:42

Sternocera

7-Aug-08 0:42

Problem solved. Merely had to append this to int CChildWnd::OnCreate(LPCREATESTRUCT lpCreateStruct):

...
CWnd::OnCreate(lpCreateStruct);
DWORD dw = ::GetWindowLong(GetSafeHwnd(), GWL_EXSTYLE);
dw &= ~WS_EX_CLIENTEDGE; 
::SetWindowLong(GetSafeHwnd(), GWL_EXSTYLE, dw);
}

Hinding from TASK bar and font chang of caption TEXT

himuskanhere6-Aug-08 23:00

himuskanhere

6-Aug-08 23:00

hello frnds
plz help me regarding how to change font of Caption of Window Text.
Also whts the procedure to hide icon on task bar.

thanks Laugh | :laugh:

Re: Hinding from TASK bar and font chang of caption TEXT [modified]

_AnsHUMAN_ 6-Aug-08 23:13

_AnsHUMAN_

6-Aug-08 23:13

himuskanhere wrote:
Hinding from TASK bar.

To prevent the window button from being placed on the taskbar, create the unowned window with the WS_EX_TOOLWINDOW extended style. As an alternative, you can create a hidden window and make this hidden window the owner of your visible window.

himuskanhere wrote:
and font chang of caption TEXT.

See here[^]

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

modified on Thursday, August 7, 2008 5:24 AM

how to increase speed of an audio file without changing the pitch...

hariprasada6-Aug-08 22:43

hariprasada

6-Aug-08 22:43

hi ,
I have an application where in i need to change the speed of the file ,
am able to change tat using MCIWNDSETSPEED() where in it is changing the pitch of the file along with the
speed,...but i need to change only the speed like in windows media player...where in speeding up the file just changes the frames per second of the file...
and also could anyone help me changing the speed of an wav file...
thanks in advance,
Hari

Re: how to increase speed of an audio file without changing the pitch...

Alan Balkany7-Aug-08 4:01

Alan Balkany

7-Aug-08 4:01

This isn't a direct answer to your question, but I've heard of a product called "Seventh String", which changes the speed of music WITHOUT changing the pitch. There was a discussion about the technology used, which involved forrier transforms.

Re: how to increase speed of an audio file without changing the pitch...

hariprasada7-Aug-08 20:42

hariprasada

7-Aug-08 20:42

can you show me a sample ???

Re: how to increase speed of an audio file without changing the pitch...

Alan Balkany8-Aug-08 7:27

Alan Balkany

8-Aug-08 7:27

http://www.seventhstring.com/[^]

Does it make sense - mutex locks twice ?

dharani6-Aug-08 22:29

dharani

6-Aug-08 22:29

Hi all
I need to clarify a point with the usage of mutex locking .
mutexlock(&mutexobj);
Function1(socket &lnk);
mutexunlock(&mutexobj);

In Function1()
{
mutexlock(&mutexobj);
globalvar1= globalvar2;
mutexunlock(&mutexobj);
}

My questions :
-> Is it right/necessary to mutex lock inside Function1()? I understand a global lock/unlock surrounding the call to Function1() will ensure that the whole code / critical resources are thread safe .
I find such occurance of such locking/unlocking in many areas of the code I am working with . Is it not a problem ? .

redindian

Re: Does it make sense - mutex locks twice ?

Cedric Moonen6-Aug-08 22:35

Cedric Moonen

6-Aug-08 22:35

You can re-enter the same mutex twice from the same thread: as you are owning it, you won't block when you try to lock it from the same thread. This prevents deadlock situation (if it you block, then re-entering it would cause a deadlock).

Cédric Moonen
Software developer

Charting control [v1.4]
OpenGL game tutorial in C++

Re: Does it make sense - mutex locks twice ?

dharani6-Aug-08 22:48

dharani

6-Aug-08 22:48

Thanks . But what I am curious about is - why should there be a lock/unlock inside Function1() when the whole function call is already locked ?.

redindian

Re: Does it make sense - mutex locks twice ?

Cedric Moonen6-Aug-08 23:10

Cedric Moonen

6-Aug-08 23:10

In that particular case it doesn't make any sense. But sometimes, when you have a function with multiple 'paths' and some of them call Function1(), then you would like to still lock the full function. But I agree, it is a bit messy...

Cédric Moonen
Software developer

Charting control [v1.4]
OpenGL game tutorial in C++

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