C / C++ / MFC

Macromedia Flash like Timeline control

10-Jul-07 5:58

djin94 wrote:
Can I connect my Directshow source filter directly to it.

Not directly. It takes a little work but less work than writing your own streaming code.
With Windows Media Format, you basically configure a profile for the streams, pass uncompressed
samples, and it does the rest.

The trick is to get those samples from DirectShow. One easy way is with the grabber filter.
Another harder way is to write a custom filter.

Download Windows Media Format 9 Seres SDK[^]

The WMF network reader/writer does not use RTP AFAIK. It does use HTTP protocol for easy
firewall traversal.

There may be 3rd-party DirectShow filters to do it as well.

Mark

Mark Salsbery
Microsoft MVP - Visual C++

This episode brought to you by the letter Z

sdancer759-Jul-07 2:22

sdancer75

9-Jul-07 2:22

Hi,

Do you know any flash like timeline control that i could download and play with it ?

I did not find any in codeproject.

Regards,

sdancer75

Win32 detours lib, linking problems, and function oridinals [modified]

tmp09-Jul-07 1:43

tmp0

9-Jul-07 1:43

Hello all,

I'm trying to use Microsoft Win32 Detours library (API interception library). Because it is a production of their research lab, they offer no formal support.

At the beginning I had problems compiling the latest version (version 2.1) of the library with MS C++ Express - however, it compiles fine on VS2003.

When compiling the DLL which contains the custom functions (the detour DLL) I get the errors:

<br />
detours.lib(detoured.obj) : error LNK2005: _DllMain@12 already defined in testC.obj<br />
LINK : warning LNK4098: defaultlib 'LIBC' conflicts with use of other libs; use /NODEFAULTLIB:library<br />
Release/testC.dll : fatal error LNK1169: one or more multiply defined symbols found<br />

I did try to use /FORCE:MULTIPLE, which caused a successful compilation. However, when I load the DLL using one of the destours samples (withdll.exe) I get the error:

<br />
Error: testC.dll does not export function with ordinal #1.<br />

I know that this is a library specific question and this forum is for C++ general discussion. However, I have no other place to ask. I was also hoping that I can get an answer since this *looks* like a settings problem.

I did use an older version of Detours library a long time ago and I had no problems.

Detours website: http://research.microsoft.com/sn/detours/

Many thanks in advance,

- Naimi

SOLVED
I did not use a .def file which exports the functions (I did not need to do this with Detours version 1.5)
If someone is having this problem, see:
http://msdn2.microsoft.com/en-us/library/d91k01sh(VS.80).aspx

-- modified at 1:48 Tuesday 10th July, 2007

Which VS edition should i buy???

SandipG 9-Jul-07 1:09

SandipG

9-Jul-07 1:09

I develope applications which are mostly standalone Desktop applications. Few applications are of GDI+ and few serial ommunications applications.
If i wanna upgrade from VC6.0 to VS2005
Should i buy Professional Edition which is $799.00
or i would go for Standard edition which is $299.00

Will my applications work properly in standard edition mostly i am worried about GDI+ applications.

Thanks,
Sandip.

Re: Which VS edition should i buy???

Christian Graus9-Jul-07 1:29

Christian Graus

9-Jul-07 1:29

they will work fine in both, the editions are not limited by technology, except the express one. They are limited by other features. There would be a feature matrix on the MS site, I am sure.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Which VS edition should i buy???

SandipG 9-Jul-07 1:36

SandipG

9-Jul-07 1:36

Ya i went through the Features set i didnt understand few things from there so i was confused.
Will there be much migration issues??.
Thanks,
Sandip.

Re: Which VS edition should i buy???

David Crow9-Jul-07 2:39

David Crow

9-Jul-07 2:39

SandipG wrote:
Ya i went through the Features set i didnt understand few things...

Such as?

SandipG wrote:
Will there be much migration issues??.

If there are any, they will be the same for both Professional and Standard.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Removing caret/cursor from listbox on selection change

ComplexLifeForm9-Jul-07 0:31

Re: Removing caret/cursor from listbox on selection change

9-Jul-07 0:31

Hi,

I have a listbox containing strings items. When the user selects an item in the listbox using keyboard character, there is a vertical cursor/caret displayed at the end of first character. E.g. If the listbox has String items as "One", "Two", "Three", "Four", "Five", "Six", "Seven" etc... and the user press character "s/S" after bringing the focus on the listbox, a vertical line similar to the one shown in the following word "S|ix" is dispalyed.
Basically a veritical line is shown after the first character of the item if it exists in the listbox

How do I get rid of this cursor? I have tried using "HideCaret", SetCaretPos API in selectchange message handler, onfocus message handler but the vertical line is still vistible, though it goes away automatically in a second or two, I do not want it to be displayed at anytime.

Thanks.

Mark Salsbery9-Jul-07 8:36

Re: Removing caret/cursor from listbox on selection change

9-Jul-07 8:36

What does the code look like that creates the control?

Mark

Mark Salsbery
Microsoft MVP - Visual C++

This episode brought to you by the letter Z

ComplexLifeForm10-Jul-07 0:32

Re: Removing caret/cursor from listbox on selection change

10-Jul-07 0:32

Hi Mark,

It is a standard code generated with VC++ 2005. I had simply created a dialog based application. Added a listbox to the dialog and added the code in the InitDialog method to insert the strings in the listbox. When I compile and execute the application the dilaog comes up with the listbox and strings in it, nothing special other than this. Anyways you can see the InitDialog code below where the list box is initialized with strings

CListBoxDialog::OnInitDialog()
{
CDialog::OnInitDialog();

// Other code add by the wizard....

// my code
const TCHAR* Strings[10] = {_T("One"),
_T("Two"),
_T("Three"),
_T("Four"),
_T("Five"),
_T("Six"),
_T("Seven"),
_T("Eight"),
_T("Nine"),
_T("Ten") };

for(int i = 0; i < 10; i ++)
{
m_List.AddString(Strings[i]);
}

return TRUE; // return TRUE unless you set the focus to a control

I didn't made any changes in the properties of the listbox.

Thanks

}

Mark Salsbery10-Jul-07 5:49

Re: Removing caret/cursor from listbox on selection change

10-Jul-07 5:49

Thanks! Can you post the code from the resource (rc) file for the dialog resource?
That's where the control styles are.

I'm curious because I can't get a caret to appear in a listbox. Smile | :)

Mark

Mark Salsbery
Microsoft MVP - Visual C++

This episode brought to you by the letter Z

ComplexLifeForm10-Jul-07 6:41

Re: Removing caret/cursor from listbox on selection change

10-Jul-07 6:41

Hi Mark,

Here is the code for the Dialog resource

IDD_LISTBOX_DIALOG DIALOGEX 0, 0, 320, 200
STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU
EXSTYLE WS_EX_APPWINDOW
CAPTION "ListBox"
FONT 8, "MS Shell Dlg", 0, 0, 0x1
BEGIN
DEFPUSHBUTTON "OK",IDOK,263,7,50,16
PUSHBUTTON "Cancel",IDCANCEL,263,25,50,16
LISTBOX IDC_LIST,72,31,90,113,LBS_SORT | LBS_NOINTEGRALHEIGHT | WS_VSCROLL | WS_TABSTOP
END

If you want I can send you the zipped code at your mail address

Thanks

Mark Salsbery10-Jul-07 7:00

Re: Removing caret/cursor from listbox on selection change

10-Jul-07 7:00

Just what I needed, thanks!

Laugh | :laugh:

I've never seen that before. I had to look real close to see the caret.
For me, the caret blinks once and goes away (I'm on XP Pro SP2).

I removed the SORT style (set the Sort property to false in the resource editor) from the listbox
control and I don't see the caret now.

I'll look at it more in a bit...

Mark

Mark Salsbery
Microsoft MVP - Visual C++

This episode brought to you by the letter Z

ComplexLifeForm10-Jul-07 8:26

Re: Removing caret/cursor from listbox on selection change

10-Jul-07 8:26

Thanks Mark.

Strange I also do not see the caret if I set the SORT style to false !!

I am also on WinXP Pro SP2 and it goes for me also with in a second. But I had hard time explaining to my usability team about the caret stuff, they are bit rigid on it not appearing at all. And since I also do not know the reason for the caret to appear I thought of creating a seprate project and try to solve the issue and it seems a bit overkill to go for ownerdraw listbox for this issue

But after trying for sometime without luck I had posted it here. Anyways I now have partial solution and till I do not find a proper solution/reason I can set the listbox SORT style to false, sort the items externally and add it to the list.

Regards

Mark Salsbery10-Jul-07 9:28

Re: Removing caret/cursor from listbox on selection change

10-Jul-07 9:28

The docs for the control mention the caret but I think it's silly on a control that you can't
enter text Smile | :)

WM_SETFOCUS Turns the caret on and sends an LBN_SETFOCUS notification message to the owner of the
list box.
WM_KILLFOCUS Turns the caret off and destroys it. Sends an LBN_KILLFOCUS notification message to
the owner of the list box.
WM_KEYDOWN Processes virtual keys for scrolling. The virtual key is the index of the item to move
the caret to. The selection is not changed.

Cheers,
Mark

Mark Salsbery
Microsoft MVP - Visual C++

This episode brought to you by the letter Z

ComplexLifeForm11-Jul-07 4:59

11-Jul-07 4:59

Hi Mark,

Thanks for the insights into Listbox working

Regards
Smile | :)

CString to GUID

Ohad Cabiri8-Jul-07 22:15

8-Jul-07 22:15

How I can convert CString to GUID ?
Ex :

CString str = "{EB533751-63E2-46c4-B0C7-F83157180BB6}";<br />
GUID guiFromStr = ?

Thanks,
Ohad

Re: CString to GUID

CPallini8-Jul-07 22:23

CPallini

8-Jul-07 22:23

See there http://msdn2.microsoft.com/en-us/library/aa379336.aspx[^].

Please note the Requirements section.

Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: CString to GUID

Ohad Cabiri8-Jul-07 22:26

8-Jul-07 22:26

Thanks !

Ohad Cabiri8-Jul-07 22:42

8-Jul-07 22:42

USBInterface.obj : error LNK2001: unresolved external symbol __imp__UuidFromStringA@8
DLL/Debug/USBDetectorD.dll : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

CPallini8-Jul-07 22:47

CPallini

8-Jul-07 22:47

you have to use Rpcrt4.lib as stated in the Requirements section of the MSDN page.
(Menu Project->Settings, select the Link, add Rpcrt4.lib in the Object/Library modules textbox).
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Naveen8-Jul-07 22:47

Naveen

8-Jul-07 22:47

Specify the Rpcrt4.lib in the project settings->Link->object/library modules

nave

[OpenedFileFinder]

Thanks you all. Its working OK.

Rajkumar R8-Jul-07 22:47

Rajkumar R

8-Jul-07 22:47

Link to Rpcrt4.lib.

Ohad Cabiri8-Jul-07 23:21