Rebar - C / C++ / MFC Discussion Boards

karmendra_js7-Oct-05 21:33

7-Oct-05 21:33

I have an SDI application with 2 Splitter window pane [(2x1)(rxc)]. The first row is having a view derived from CListView and second is derived from CFormView.

I want to disable the scrollbar in second row containing the Form.

Thanks.

Re: Disabling scroll bar

Mircea Puiu8-Oct-05 21:18

Mircea Puiu

8-Oct-05 21:18

have a look here, maybe it helps:
http://www.codeproject.com/splitter/toolbar_splitter.asp?df=100&forumid=100&exp=0&select=140418[^]

... or just use the ShowScrollBar function. See this MSDN page:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/scrollbars/scrollbarreference/scrollbarfunctions/showscrollbar.asp[^]

-- modified at 3:25 Sunday 9th October, 2005

Refresh

Member 20251767-Oct-05 21:12

Member 2025176

7-Oct-05 21:12

How can I refresh dialog controls when the program CPU usage is %100?

Re: Refresh

ThatsAlok7-Oct-05 21:36

ThatsAlok

7-Oct-05 21:36

Safaei wrote:
the program CPU usage is %100?
What task are you performing.. thats making program CPU usage 100%.. try worker threads for cumbersome task...
reda more about worker thread here

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Refresh

Bob Stanneveld8-Oct-05 0:15

Bob Stanneveld

8-Oct-05 0:15

You don't know if you can refresh your controls. If some idle process is consuming all the CPU cycles, it won't affect your process. If a process with a higher priority consumes all the CPU, your program won't even run..

If it's your application which consumes all the CPU, I suggest you find out which loop is running like crazy and fix it. Users generally don't like it when a application takes all the CPU..

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Change Caption

Member 20251767-Oct-05 21:06

Member 2025176

7-Oct-05 21:06

How can I change dialog caption in MFC application with programming?

Re: Change Caption

ThatsAlok7-Oct-05 21:29

ThatsAlok

7-Oct-05 21:29

Safaei wrote:

How can I change dialog caption in MFC application with programmin

Try SetWindowText api

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Rebar

karmendra_js7-Oct-05 20:48

karmendra_js

7-Oct-05 20:48

I am using VC++ of Visual Studio .NET.

The problem here is When I create two tool bars and add them to a rebar as follows the two toolbars will be at each side. I want them both to be Left Aligned one after the other.

Note: the very same code works as i want in VC++ 6 of Visual Studio 6.

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

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

if (!m_wndReBar.Create(this) ||
    !m_wndReBar.AddBar(&m_wndToolBar) ||
    !m_wndReBar.AddBar(&m_wndClientToolBar))
{
    TRACE0("Failed to create rebar\n");
    return -1;      // fail to create
}

if (!m_wndStatusBar.Create(this) ||
    !m_wndStatusBar.SetIndicators(indicators,
      sizeof(indicators)/sizeof(UINT)))
{
    TRACE0("Failed to create status bar\n");
    return -1;      // fail to create
}

Thanks.

Explain in brief this error...

Supriya Tonape7-Oct-05 20:10

Supriya Tonape

7-Oct-05 20:10

Access violation reading location 0x003261b6
is there any specific reason than what we normally knew abt it..
thanks
Supriya Tonape

Re: Explain in brief this error...

ThatsAlok7-Oct-05 20:36

ThatsAlok

7-Oct-05 20:36

Supriya Tonape wrote:
Access violation reading location 0x003261b6
is there any specific reason than what we normally knew abt it..

You tried to access some memory location which is denied for your Program.. Where do u get this Violation i.e. calling which api or function... if function is your own... show the snippet.

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Explain in brief this error...

Supriya Tonape7-Oct-05 20:46

Supriya Tonape

7-Oct-05 20:46

But why that memeory is denied for I m or my pgm is using the memory which is being assigned to use for it...

I was trying to assign one address to void pointer.
Chalo now bye
Supriya Tonape

Re: Explain in brief this error...

S. Senthil Kumar7-Oct-05 21:15

S. Senthil Kumar

7-Oct-05 21:15

Well, you can't arbitrarily assign an address to a pointer and expect it to work. Did you do something like

void *p = (void *)0x003261b6;

?
Let me try explaining why it doesn't work in the simplest way possible.

Every program has something called a virtual address space allocated to it, to prevent one program from trampling over another program's memory. Now whenever you try to access memory, the OS and the CPU conspire to translate the virtual address to the actual physical address. To do this, the OS has to maintain a mapping between virtual and physical addresses and has to know which virtual addresses have been allocated by the program and which have not.

In your case, you're trying to access an address which has not been allocated to the program and that's why you're getting the access violation error. You must consider yourself lucky it crashed straightaway. Imagine the consequences if it worked on your PC, because by some coincidence that memory *was* allocated somewhere else (by the OS or by you), and it crashed right in front a 100 people when you are giving a demo.

Bottom line : Never do the above unless you are dead sure that address has been allocated.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Explain in brief this error...

Supriya Tonape7-Oct-05 22:32

Supriya Tonape

7-Oct-05 22:32

no I was not doing that...
well, I was doing following thing,

//asign the address to a void PTR
Base = &(FileVersionInfo->dwProductVersionMS);

Before above code I m writing this,
dwVerInfoSize = GetFileVersionInfoSize( szAppName, &dwVerHnd );
cout << dwVerInfoSize << "\n";

if I comment cout stmt my pgm gives me that error.If I uncomment it it works fine.why is that so...I was really confused...

anyways bye. In betwn are U same Senthil who helped me in my final year engineering for XML parser.

thanks
Supriya Tonape

-- modified at 4:38 Saturday 8th October, 2005

Re: Explain in brief this error...

S. Senthil Kumar8-Oct-05 1:15

S. Senthil Kumar

8-Oct-05 1:15

Supriya Tonape wrote:
//asign the address to a void PTR
Base = &(FileVersionInfo->dwProductVersionMS);

It's possible that FileVersionInfo instance went out of scope and consequently got destroyed, but you're still having a pointer to it's swProductVersionMS member. Could you paste the whole function where the problem is happening?

Supriya Tonape wrote:
In betwn are U same Senthil who helped me in my final year engineering for XML parser

In Yahoo Programming chat rooms? Then yes.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Explain in brief this error...

Anonymous11-Oct-05 7:58

Anonymous

11-Oct-05 7:58

There is another issue if the code is crashing somewhere after the assign. Do you actually access the pointer at some point in time or does it crash when you leave the fn.

System Inactivity

Ivan Cachicatari7-Oct-05 17:52

Ivan Cachicatari

7-Oct-05 17:52

Hi,

How to detect system inactivity?

Ivan Cachicatari Blog[^]
www.latindevelopers.com

Re: System Inactivity

ThatsAlok7-Oct-05 19:38

ThatsAlok

7-Oct-05 19:38

Ivan Cachicatari wrote:
How to detect system inactivity?

check is this api of any help GetLastInputInfo

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: System Inactivity

Ivan Cachicatari8-Oct-05 3:04

Ivan Cachicatari

8-Oct-05 3:04

Thanks.

Ivan Cachicatari Blog[^]
www.latindevelopers.com

db grid control?

cell517-Oct-05 15:19

cell51

7-Oct-05 15:19

where i can get manual or tutorial or sample for ms dbgrid control in visual c++?? can someone helpme plz ...

simple program help

Anonymous7-Oct-05 14:43

Anonymous

7-Oct-05 14:43

ive got this program im trying to write and basically its supposed to get an integer and decide if its prime or not prime.

the problem is, i have no idea where to start. i know it involves things like while loops but im not sure how to get it to determine if its prime or not.

can aanybody help?

Re: simple program help

ThatsAlok7-Oct-05 19:53

ThatsAlok

7-Oct-05 19:53

Anonymous wrote:
the problem is, i have no idea where to start. i know it involves things like while loops but im not sure how to get it to determine if its prime or not.

Small Logic:-

void main()
{
	int i,j;
	bool bPrime=true;

	cout<<"enter the number ( greater and equal to 2 ) : ";
	cin>>i;

	for(j=2;j<i-1;j++)
	{
		if(i%j==0)
		{
			bPrime=false;
			break;
		}
	}

	if(bPrime)
		cout<<endl<<i<<" Number is prime";
	else
		cout<<endl<<i<<" Number isnot prime";

}

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

[Message Deleted]

v(A)ssili8-Oct-05 19:14

v(A)ssili

8-Oct-05 19:14

[Message Deleted]

Re: simple program help

Gary R. Wheeler9-Oct-05 2:59

Gary R. Wheeler

9-Oct-05 2:59

A prime number, by definition, is divisible only by 1 and itself. Your program finds an integer that, multiplied by itself, is equal to the user's number.

Software Zen: delete this;

Re: simple program help

John R. Shaw8-Oct-05 23:46

John R. Shaw

8-Oct-05 23:46

First you have to know what a prime number is. The rest is just symantics here.

In other words, write some code and post it with your question. The odds are that while you are writing it, you'll get your see answer.

INTP
Every thing is relative...

Object Help

Anonymous7-Oct-05 14:07

Anonymous

7-Oct-05 14:07

I want to have an array of objects for an object horse.

horse oHorse[3];
horse Jabo;
horse DarbyDan;
horse BigRed;

How would I set a horse named Jabo using the array?

I've tried oHorse[0] Jabo; but I get that Jabo is an undeclared identifier. I'm a newb so please explain any concepts if you feel they need explained.
Thanks

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