C / C++ / MFC

Re: function pointer on classfunctions

toxcct11-Jun-05 23:24

toxcct

11-Jun-05 23:24

just put send not a member function... (say it is global... or at least, from within a namespace of your own)

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: function pointer on classfunctions

Behzad Ebrahimi12-Jun-05 4:09

Behzad Ebrahimi

12-Jun-05 4:09

See Class function callback[^]

I am stuck please help me

Aqueel11-Jun-05 20:57

Aqueel

11-Jun-05 20:57

Hello brothers...
I tried my best but could not get solution to my problem. Please help me.
I can not understand why this error message is comming. I have changed my code but error is still there.

My code is as follows.

void CMyThreadDlg::OnOK()
{
if (m_check) // if check box is checked
{
AfxBeginThread(ThreadProc,NULL,THREAD_PRIORITY_NORMAL,0,0,NULL);
MessageBox("Thread Started");
}

CDialog::OnOK();
}

UINT ThreadProc( LPVOID Param )
{
ofstream fout;
fout.open("thread.txt");

for(int i=0;i<=100;i++)
{
fout <<i <<' ';
}
fout.close();

return 0;
}

Error message is,
<b>AfxBeginThread' : ambiguous call to overloaded function</b>

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Re: I am stuck please help me

toxcct11-Jun-05 23:00

toxcct

11-Jun-05 23:00

maybe ThreadProc is an identifier already existing...
you could either change its name, or use the :: scope operator...

(and please explain better you problems next time...)

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: I am stuck please help me

eli1502197911-Jun-05 23:35

eli15021979

11-Jun-05 23:35

Hi,
I think you ar passing to many parametrs to AfxBginThread() (I don't have MSDN on this computer...).
Anyway try this :

void CMyThreadDlg::OnOK() 
{
   if (m_check) // if check box is checked
   {
      AfxBeginThread(ThreadProc,NULL);
      MessageBox("Thread Started");
   }

   CDialog::OnOK();
}

[EDIT]
I've checked and you are passing the right parameters,so you have 2 more options:

1. Declare your thread on top of your file:

UINT ThreadProc(LPVOID lpvoid);

and then use it.

2. You already have a function calld ThreadProc.
Try a different name to your thread.

Regards,
Eli

Re: I am stuck please help me

toxcct12-Jun-05 0:11

toxcct

12-Jun-05 0:11

eli15021979 wrote:
I don't have MSDN on this computer...

www.msdn.microsoft.com[^]...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: I am stuck please help me

eli1502197913-Jun-05 20:09

eli15021979

13-Jun-05 20:09

thanx,I forgot it.... D'Oh! | :doh:

Eli

Re: I am stuck please help me

S. Senthil Kumar12-Jun-05 4:52

S. Senthil Kumar

12-Jun-05 4:52

Did you try declaring ThreadProc before using it. Something like

UINT ThreadProc( LPVOID Param );
void CMyThreadDlg::OnOK()
{
...

IIRC, the compiler creates a function that takes and returns void if you don't define one before using it. Or is it only a C language feature?

Regards
Senthil
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Re: I am stuck please help me

toxcct12-Jun-05 20:30

toxcct

12-Jun-05 20:30

S. Senthil Kumar wrote:
Or is it only a C language feature?

yep. C only...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

BSTR

pardis11-Jun-05 19:52

pardis

11-Jun-05 19:52

hi
is it possible to send a BSTR to a method expecting a _bstr_t?

Re: BSTR

Gary R. Wheeler12-Jun-05 2:00

Gary R. Wheeler

12-Jun-05 2:00

void function(_bstr_t string);
BSTR BSTR_string;
function(_bstr_t(BSTR_string,true));

The bool argument to the _bstr_t constructor specifies whether you want to copy the string or simply attach it to the _bstr_t object you're creating.

Software Zen: delete this;

Moving Non-Title Dialog

Tran Duy Hung11-Jun-05 17:55

Tran Duy Hung

11-Jun-05 17:55

The task is to create non-title dialog which allows user to move it arround the desktop.
As we all knew, user can move the normal dialog by click left button and drag the mouse while it is in the Title area. My dialog have no title, how I can perform the task.

I have tried to handle events WM_LBUTTONDOWN and WM_MOUSEMOVE in the WindowProc procedure of the dialog.
I can move the dialog, but the problem is:
The dialog can't move smoothly. It is flicking
Does any one help me to handle the task better?

Thanks very much

TDH

Re: Moving Non-Title Dialog

Ravi Bhavnani11-Jun-05 19:42

Ravi Bhavnani

11-Jun-05 19:42

Add a handler for WM_NCHITTEST and just return HT_CAPTION.

UINT CMyDlg::OnNcHitTest(CPoint point) 
{
  return (HTCAPTION);
}

/ravi

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Re: Moving Non-Title Dialog

Gary R. Wheeler12-Jun-05 2:01

Gary R. Wheeler

12-Jun-05 2:01

I'll have to remember that one.

Software Zen: delete this;

How to update/refresh/resize the systray after replace the windows clock with static

ELY M.11-Jun-05 17:47

ELY M.

11-Jun-05 17:47

I been working on this clock replacement program because I never find
any open source ones.

I been having problem with the code and cant find a way to auto
update/refresh my systray to fit my clock replacement.

I already looked all over google and news groups.

Take a look at those pics

before I run the program
http://69.50.187.114/~area51/before.gif

after I run the program = notice I lost my AIM icon.... it overlapped
the AIM icon.
http://69.50.187.114/~area51/after.gif

my program is MFC based.

I decided to include my code for people to take a look at.

http://69.50.187.114/~area51/Start_Button_Clock_Changer.zip

Click on the "Change Clock" button on the dailog. you will see what I
mean.

GDI/OpenGL or DirectX?

NeverFall11-Jun-05 16:07

NeverFall

11-Jun-05 16:07

What would be the best method for printing to the screen without flickering? I tried using GDI but it still flickers.

I want to *draw* lines to the screen. The only prob is that I want it intended to be run with a DirectX game which flickers every second.

What would be the best way to do it?

Re: GDI/OpenGL or DirectX?

Behzad Ebrahimi12-Jun-05 1:32

Behzad Ebrahimi

12-Jun-05 1:32

You must serch "Flicker Free" on CP!
You will find very staff such as
Flicker Free Drawing In MFC[^]

Using IsClipboardFormatAvailable function to check CF_OWNERDISPLAY

hcmuns11-Jun-05 14:36

hcmuns

11-Jun-05 14:36

Using IsClipboardFormatAvailable function to check CF_OWNERDISPLAY

if (IsClipboardFormatAvailable(CF_OWNER_DISPLAY))
{
//Process...
}

Thanks in adavnce Smile | :)

Re: Using IsClipboardFormatAvailable function to check CF_OWNERDISPLAY

Tom Archer11-Jun-05 15:54

Tom Archer

11-Jun-05 15:54

Is there a question in here some place? Confused | :confused:

Using IsClipboardFormatAvailable function to check CF_OWNERDISPLAY

hcmuns11-Jun-05 14:36

hcmuns

11-Jun-05 14:36

Using IsClipboardFormatAvailable function to check CF_OWNERDISPLAY

if (IsClipboardFormatAvailable(CF_OWNER_DISPLAY))
{
//Process...
}

Thanks in adavnce Smile | :)

RichEditCrtl in dialogue doesn't work

Trollslayer11-Jun-05 13:12

Trollslayer

11-Jun-05 13:12

I have a dialogue box which works fine then I add a CRichEditCtrl then it fails to create.
Any suggestions ?
This is VC6.0 by the way.

Thanks.

Elaine Rose | [Rose]