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Re: Plugin Framework

Garth J Lancaster19-Jan-04 10:05

Garth J Lancaster

19-Jan-04 10:05

I dont wish to be rude, but have you looked around CodeProject much ??

Len Holgate has this article http://www.codeproject.com/com/extensibleapps.asp[^] That Zac Howland has turned into a couple of articles - the first being http://www.codeproject.com/com/componentcategories.asp[^] ... these are all in the COM section on Codeproject (use the section navigation options on the left hand frame...) ..then, if you want to look at 'dll' as opposed to the COM way of doing plugins, there are a number of articles under the "DLL's" section.

Its really not that hard to find some info on what you're looking for - you just have to have some get up and go and not expect everything to be handed to you on a plate...sigh, the youth of today

'G'

Re: Plugin Framework

Deian19-Jan-04 20:58

Deian

19-Jan-04 20:58

Thanks for the reply,

No, I don't want somebody else to handle my project, that's why I asked for information on some kind of framework. I've looked over the dll's secton a long time ago, and I know about the 2 examples present there. I was trying to get as far as possible from COM Frown | :(

Thanks again Wink | ;)

Re: Plugin Framework

Garth J Lancaster19-Jan-04 21:35

Garth J Lancaster

19-Jan-04 21:35

OK you dont want COM - in which case the 'framework' is 'whatever you want it to be'

The only other working instance of a plugin DLL 'framework' I know of is :-

http://csl.sourceforge.net/[^]

Its well documented and worth taking a look at..

I think wether you are using COM or not, to a certain extent you still have the same issues, but they are made easier or harder by your choice of implementation base - to some extent with DLL you have to be a bit more rigid in that every dll has the same functions with the same parameters unless you set up some sort or registration interface (isnt that COM ???) .. In COM, you can hide that and check the Component Category registry or query IUnknown to see if a particular interface is supported ...

'G'

Re: Plugin Framework

Roger Allen19-Jan-04 23:40

Roger Allen

19-Jan-04 23:40

Take a look at my article An MFC extension library to enable DLL plug-in technology for your application using MESSAGE_MAPs[^] which is a working plug-in system for MFC.

Roger Allen - Sonork 100.10016
Roger Wright: Remember to buckle up, please, and encourage your friends to do the same. It's not just about saving your life, but saving the quality of life for those you may leave behind...

Re: Plugin Framework

Deian20-Jan-04 8:26

Deian

20-Jan-04 8:26

Thank you all for the help Smile | :)

))!

Greek character

eigen19-Jan-04 6:16

eigen

19-Jan-04 6:16

How can I show 'Greek' character like phi, delta ... in static control and Flexgrid control.

When I tried in my home, looks OK, but when I run that program in other computer. That become starnge character.

in source code I write 'rho' like this "¥ñ"

very strange..

Re: Greek character

Navin19-Jan-04 10:55

Navin

19-Jan-04 10:55

It probably has to do with fonts. Make sure you are using a "standard" font that comes with Windows, and make sure you explicitly set the font of the edit box in question.

"I'd be up a piece if I hadn't swallowed my bishop." Mr. Ed, playing chess

Re: Greek character

фил21-Jan-04 4:42

фил

21-Jan-04 4:42

i think you need the right codepages on your system. changing your default codepage to the egyptian would make you see pyramids, birds and 2-d men dancing to "Rock The Boat".

insert value in char array

merlin37119-Jan-04 5:16

merlin371

19-Jan-04 5:16

hi i'm tring to insert 4 values in one go on a char array, the values are set in my code, when i try to write on the arrray from the console I use
cin.getline (array,100)
that works but I don't know what to use for my code

thanks

Re: insert value in char array

valikac19-Jan-04 6:29

valikac

19-Jan-04 6:29

Do you want to read in a stream of data or one line of string from a file? For one list of string, one solution is std::getline() and string object.

std::string sInput;
std::getline(cin, sInput);

Kuphryn

Re: insert value in char array

merlin37119-Jan-04 7:01

merlin371

19-Jan-04 7:01

no i want it to write some staff i say on the array like if I have something like this

if (array [3] == a)
then i want it to write on a different array ccd@

Re: insert value in char array

David Crow19-Jan-04 9:14

David Crow

19-Jan-04 9:14

Then use the '=' (assignment) operator.

A rich person is not the one who has the most, but the one that needs the least.

warning LNK4070: /OUT:TENGINE.EXE directive in .EXP differs from output

AssemblySoft19-Jan-04 4:31

AssemblySoft

19-Jan-04 4:31

VC++ 6
Compiling .c based modules.
Linking .objs
I would appreciate anyones help regarding this warning

warning LNK4070: /OUT:TENGINE.EXE directive in .EXP differs from output filename "c:\winisv\t_engine.exe"; ignoring directive

I found this on the HP web site but cannot find any name conflicts in Project->Settings

HP listing:
Linker Tools Warning LNK4070
/OUT:filename directive in .EXP differs from output filename "filename"; ignoring directive
The filename specified in the NAME or LIBRARY statement when the .EXP file was created differs from the output filename that was either assumed by default or specified with the /OUT option. A client program that uses the resulting DLL might encounter problems.

thanks in advance

Carl Dead | X|

Re: warning LNK4070: /OUT:TENGINE.EXE directive in .EXP differs from output

Mike Dimmick19-Jan-04 4:56

Mike Dimmick

19-Jan-04 4:56

You probably have a disagreement in your .DEF file's LIBRARY statement.

Insert file operation using CFile

anunay19-Jan-04 4:19

anunay

19-Jan-04 4:19

Hi,
I have an existing binary file. My requirement is to insert user specifed number of bytes(data) at any given offset so that data following that point is not overwritten. Can this be implemented without rewriting whole file every time?

I'm looking for efficent way to do this. My files are huge and there will be multiple number of insersions. Any sample code will be appriciated.

Thanks,
Anunay

Re: Insert file operation using CFile

David Crow19-Jan-04 4:29

David Crow

19-Jan-04 4:29

You could use a memory-mapped file to eliminate some of the disk I/O.

A rich person is not the one who has the most, but the one that needs the least.

Re: Insert file operation using CFile

anunay19-Jan-04 4:37

anunay

19-Jan-04 4:37

But can I do this without rewriting the whole file every time ?

Re: Insert file operation using CFile

Johnny ²19-Jan-04 4:58

Johnny ²

19-Jan-04 4:58

At the best you can avoid rewriting everything up to the point of insertion. If you need to insert often, and into very big files, then I would suggest an alternative file format/algorithm that better supports random insertion.

Releasing a filter in directshow

yogev19-Jan-04 3:50

yogev

19-Jan-04 3:50

I built a simple graph, (mpeg2 file as source -> mpeg2 demultiplexer -> 2 outputs (null renderes for audio and video)).

After graph has finished i wanted to relase all filters, and when i tried to call : pGraph->RemoveFilter(pDemux) , i got access violation.

The other filters got released and removed with no problem. Only this filter got me an access violation. (I tried replacing this demux in another demux (Elecard Mpeg2 demux) i had, and got same result).

When i tried to enumerate all pins of that filter just before i remove it, everything worked just fine. (Even though the enumration itself got no side effects..)

Someone encountered this problem before or have any idea what can cause this?

I tried googling, and nada, no results.

Thanks for ur help.

How can I change the Color of a Buttons Text?

SuperRon200319-Jan-04 3:40

SuperRon2003

19-Jan-04 3:40

Hi! I want to change the Color of the Text in some of my Buttons.
Can anybody help me?

Thanks!

Re: How can I change the Color of a Buttons Text?

vcplusplus19-Jan-04 4:45

vcplusplus

19-Jan-04 4:45

Take a look into WM_CTLCOLOR

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cwnd.3a3a.onctlcolor.asp

Re: How can I change the Color of a Buttons Text?

SuperRon200319-Jan-04 19:39

SuperRon2003

19-Jan-04 19:39

Thats the way I tried first, but it dont´t work. I don´t know why.
I wrote the following Code:

HBRUSH CDialogProgKonf::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

int nId = pWnd->GetDlgCtrlID();

if ( nId == IDOK) pDC->SetTextColor(RGB(255,1,2));

return hbr;

} // OnCtlColor

I don´t see me fault. It would be nice if anybody can help me. Thanks

Re: How can I change the Color of a Buttons Text?

vcplusplus19-Jan-04 23:27

vcplusplus

19-Jan-04 23:27

Did you read the example from Microsoft?
// This OnCtlColor handler will change the color of a static control
// with the ID of IDC_MYSTATIC. The code assumes that the CMyDialog
// class has an initialized and created CBrush member named m_brush.
// The control will be painted with red text and a background
// color of m_brush.

You need to return m_brush.

HBRUSH CDialogProgKonf::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

    int nId = pWnd->GetDlgCtrlID();

    if ( nId == IDOK)
    { 
       pDC->SetTextColor(RGB(255,1,2));
       
       // You can do this if you have not created a CBrush variable in
       // your code.
       CBrush m_brush;

       m_brush.CreateSolidBrush(RGB(255, 255, 255));  // White background
       or
       COLORREF crSys	= ::GetSysColor(COLOR_BTNFACE);
       m_brush.CreateSolidBrush(crSys);

       hbr = (HBRUSH)m_brush;
       m_brush.Detach();
    }
    return hbr;

} // OnCtlColor

Re: How can I change the Color of a Buttons Text?

SuperRon200320-Jan-04 1:42

SuperRon2003

20-Jan-04 1:42

I´m sorry to ask you again, but it doesn´t work. I put your Code in mine in both versions, but there is no change.
The button I want to change is a standard button in an dialog, both created with the Ressource-Editor of MS Visual C++ 6.0. Are there any properties I have to change? The ID of the button is IDOK. The Dialog-Class is CDialogProgKonf.

Thanks again! Confused | :confused:

Re: How can I change the Color of a Buttons Text?

vcplusplus20-Jan-04 8:34

vcplusplus

20-Jan-04 8:34

I have ran some test and you are correct that it is not working with buttons. I have been using it with a static text box and it has been working correctly. I will investigate a little deeper and let you know if I find something.

Also take a look at this web site

http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q132/0/80.asp&NoWebContent=1

Last Visit: 31-Dec-99 18:00 Last Update: 19-Apr-24 17:54

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