Getline() in thread - C / C++ / MFC Discussion Boards

Re: CPU Usage - 100%

Mark Salsbery14-Nov-06 6:43

Mark Salsbery

14-Nov-06 6:43

What about

printf("Waiting for client (press any key to abort)...\n");<br />
getch();<br />
exit(1);<br />
break;<br />
}<br />
.... // lots of code follows<br />
}

Re: CPU Usage - 100%

Programm3r14-Nov-06 6:51

Programm3r

14-Nov-06 6:51

First of all, thank you for your reply,

This might sound stupid, but the example you provided, performs the same action as the kbhit()??? or and I missing something?? Smile | :)

Regards

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Re: CPU Usage - 100%

Mark Salsbery14-Nov-06 6:54

Mark Salsbery

14-Nov-06 6:54

« Programm3r » wrote:
but the example you provided, performs the same action as the kbhit()???

Yes except it waits for a key press consuming no noticeable CPU time.

Re: CPU Usage - 100%

Programm3r14-Nov-06 6:57

Programm3r

14-Nov-06 6:57

Thanks Mark ... I understand .... Smile | :)

I'll try it...

Regards

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Re: CPU Usage - 100%

David Crow14-Nov-06 6:51

David Crow

14-Nov-06 6:51

« Programm3r » wrote:
My question is, is there another way of running...so that it will use less cpu uasge?

Have you considered completion ports or events?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: CPU Usage - 100%

Programm3r14-Nov-06 6:54

Programm3r

14-Nov-06 6:54

Thanx for the reply David...

Thought about it, but I have put so much work into this project, I think it would kill me to do it over (that is if the "..completion ports or events?.." requires major Surgery to my app Smile | :)

)

Regards

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Re: CPU Usage - 100%

Programm3r14-Nov-06 7:52

Programm3r

14-Nov-06 7:52

David, just between you and me .... the completion ports code / functions looks very difficult ... Got this sample code from Windows Sockets 2.0 Write Scalable Winsock Apps Using Completion Ports .... and I didn't understand a dame thing Smile | :)

lol .... But thanks for the input, I sure that I can learn something out of this....

Regards

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Getline() in thread

Max++14-Nov-06 4:58

Max++

14-Nov-06 4:58

I want to get data from edit control in thread function.
My code below
UINT Thread1(LPVOID pParam)
{
char buffer[10];
int wordnum;
CTestDlg *m_dlg = (CTestDlg*)pParam;

wordnum = m_dlg->m_cedit.GetLine(0,buffer);//
*(buffer+wordnum)=0;
m_dlg->m_edit = buffer;
TRACE(m_dlg->m_edit);
return TRUE;
}
after this line
wordnum = m_dlg->m_cedit.GetLine(0,buffer);
buffer will become empty.
Anybody know how to solve this problem.

Re: Getline() in thread

Cedric Moonen14-Nov-06 5:05

Cedric Moonen

14-Nov-06 5:05

As said previously: it is very bad to mix GUI functionalities inside another thread. Why don't you simply save the string contained in your edit control in a variable before starting the thread ?
And don't pass your dialog through the thread, this is also very bad ! You should separate your GUI from your processing (I suppose you started a thread so that you can make some kind of processing, no ?).

Cédric Moonen
Software developer

Charting control [v1.1]

Re: Getline() in thread

Viorel.14-Nov-06 5:12

Viorel.

14-Nov-06 5:12

According to documentation, the first word of the buffer should contain its size.

I would suggest using of the second variant of GetLine function, with three arguments:

wordnum = m_dlg->m_cedit.GetLine(0, buffer, 10);

I hope this helps. Note that not all of functions can be used in different threads.

use <pre></pre> tags

toxcct14-Nov-06 5:19

toxcct

14-Nov-06 5:19

edit your post and place your code into <pre></pre> tags[^]

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

activex with managed assembly

Sandra197414-Nov-06 4:56

Sandra1974

14-Nov-06 4:56

Hi,

I have an activex developed with MFC that now needs to load a managed
assembly and
I want to publish the activex in a cab with all the dlls.

The only way I set it to work was adding a /manifestdependency in the
activex for the assembly and copying it to the IE directory.
Nevertheless, the assembly must also be in the activex directory for
registration. My purpose is to only have this copy of the assembly in
the activex directory.

I tried to change the lpAssemblyDirectory using Activation Context with
no luck.
I also tried to load the assembly with the full path, which gave no
error, but when the managed objects are created it is performed another
load of the assembly in the IE directory (I saw the binding logs).

I also tried to sign the assembly but the activex registration fails
after including the publicKeyToken in manifestdependency.

Any suggestion? Confused | :confused:

Thanks a lot...
Sandra

Problem in Owner Draw Button

Parthi_Appu14-Nov-06 4:51

Parthi_Appu

14-Nov-06 4:51

Hi All,

I derived a class from CButton and I'm creating pointers with style BS_OWNERDRAW. This works fine if i give style as WS_CHILD|WS_VISIBLE|BS_OWNERDRAW.

But now i want to custom draw my Radio Button, i giving style as WS_CHILD|WS_VISIBLE|BS_OWNERDRAW|BS_AUTORADIOBUTTON.

But my DrawItem method is not getting called...if remove the BS_AUTORADIOBUTTON style my DrawItem method is called..

Why is this happing?... How can i custom draw my button as radio button..

Thanx

Do your Duty and Don't expect the Result

Re: Problem in Owner Draw Button

PJ Arends14-Nov-06 5:51

PJ Arends

14-Nov-06 5:51

http://msdn2.microsoft.com/en-us/library/ms673347.aspx[^]

[quote]
BS_OWNERDRAW
Creates an owner-drawn button. The owner window receives a WM_DRAWITEM message when a visual aspect of the button has changed. Do not combine the BS_OWNERDRAW style with any other button styles.
[/quote]

Re: Problem in Owner Draw Button

Parthi_Appu14-Nov-06 17:20

Parthi_Appu

14-Nov-06 17:20

Hi Arends,

Thanx.. actually i refered Jan'2005 MSDN.. it says..

Creates an owner-drawn button. The framework calls the DrawItem member function when a visual aspect of the button has changed. This style must be set when using the CBitmapButton class.

Now i'm facing another problem, even though i set the checked state by SetCheck(BST_CHECKED), i'm not getting the BST_CHECKED value while i'm using GetCheck()..

Any Idea...

Thanx again..

Do your Duty and Don't expect the Result

Re: Problem in Owner Draw Button

Hamid_RT14-Nov-06 19:09

Hamid_RT

14-Nov-06 19:09

If you run this code do you get any change or its like your problem

<br />
CButton m_Button;<br />
myButton.Create("Test", WS_CHILD|WS_VISIBLE|BS_AUTO3STATE,<br />
  CRect(0,0,100,23), this, 1);<br />
m_Button.SetCheck(BST_CHECKED);<br />

WhiteSky

Re: Problem in Owner Draw Button

Parthi_Appu14-Nov-06 19:36

Parthi_Appu

14-Nov-06 19:36

Hi Whitesky,

The above code will work fine..

My problem is i have to draw a custom option(Radio) button.
So i derived a class from CButton and i override the DrawItem method...

As per MSDN we cannot combine any other style with BS_OWNERDRAW.
Always i'm getting BST_UNCHECKED, so i cannot able to draw the checked radio.

in DrawItem, DRAWITEMSTRUCT::itemState has no ODS_CHECKED flag and also if i use the GetCheck() API it returns BST_UNCHECKED.

Do your Duty and Don't expect the Result

Re: Problem in Owner Draw Button

Hamid_RT14-Nov-06 20:16

Hamid_RT

14-Nov-06 20:16

Maybe its not good way but its possible if you use of DrawItem you can imitation behavior of checkbox for radio button (once I tried many years ago with three buttons(checkbox)and it worked)

WhiteSky

Creating a MFC window in a subclass [modified]

earlgraham14-Nov-06 4:49

earlgraham

14-Nov-06 4:49

I’m adding a MFC window to an existing application. When I compile the “Create” everything is fine, but when I compile I get an acception:
ENSURE(afxOccMgr !=NULL);

Here is my code examples

//In MainFrm.cpp
CMainFrame::CMainFrame()
{…
AfxEnableControlContainer();
…
	pMainFrm = this;
…
	AfxOleInit();
….
}

//in my subclass.h
Class Mysub : public CWnd
C3DWindow	*m_p3dWnd;

//in my subclass.cpp
Extern CMainFrame	*MainFrm;
…


MySub::Load()
{…
	m_ p3dWnd = new C3DWindow();
…
	bRet = m_ p3dWnd ->Create("Internal_Win", 0, Rect,
                           pMainFrm, ID_MEM, NULL, FALSE);
…
}

Note: I’m developing on VS2005 with Shared MFC and CLR enabled.

Thanks

-- modified at 11:05 Tuesday 14th November, 2006

Programmer
Glenn Earl Graham
Austin, TX

use <pre></pre> tags

toxcct14-Nov-06 4:51

toxcct

14-Nov-06 4:51

edit your post and place your code into <pre></pre> tags

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: use <pre></pre> tags

Max++14-Nov-06 5:36

Max++

14-Nov-06 5:36

What is

tags ?

Re: use <pre></pre> tags

toxcct14-Nov-06 5:41

toxcct

14-Nov-06 5:41

Max++ wrote:
What is <pre></pre> tags ?

don't you know HTML ?

when posting code, surround it like this :
<pre>
void main(void) {
::printf("Hello world !!!\n");
}
</pre>

which gives you :

void main(void) {
    ::printf("Hello world !!!\n");
}

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: use <pre></pre> tags

Mark Salsbery14-Nov-06 5:52

Mark Salsbery

14-Nov-06 5:52

toxcct wrote:
don't you know HTML ?

This is a Visual C++ / MFC board. Not all of us know HTML there cowboy.

Smile | :)

Re: use <pre></pre> tags

toxcct14-Nov-06 5:58

toxcct

14-Nov-06 5:58

dude, restrict yourself to C/C++, you won't go far in your life then...

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: use <pre></pre> tags

Hamid_RT14-Nov-06 8:12

Hamid_RT

14-Nov-06 8:12

I think a good way is learning Visuall Studio .Net Smile | :)

WhiteSky

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