C / C++ / MFC

saisp26-Jul-07 23:42

saisp

26-Jul-07 23:42

yes i have seen this. but this code reads only ascii format files. i have to read both. if i convert binary to ascii the file is not valid one. since the string value is not there. how to convert binary to ascii

beko27-Jul-07 4:17

beko

27-Jul-07 4:17

I dont know much about STL format, however check VTK.
There should be an example showing how to use VTK with MFC.

CPallini26-Jul-07 23:42

26-Jul-07 23:42

Thank you!
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.

View Style Changes when switching the compiler option _UNICODE to _MBCS [modified]

saisp26-Jul-07 23:49

saisp

26-Jul-07 23:49

what's this?

F.Falk26-Jul-07 22:42

F.Falk

26-Jul-07 22:42

Hi,

i have a very old project without unicode support that i wanted to modernize a bit. Especially the user interface should get the new windows xp or vista control-style. But it doesn't works completly . The Dialog Controls don't wanted to switch to the new style. I tried everything i've found in the net but nothing works. Then i created a new project (mfc-application, dialog based) where i just open a about box to start some tests. The first result was:

The Button and the Icon are drawn in XP Style

Then i compared every option in the project settings and all include-files and #defines in the stdafx.h to my own project and changed one by one to find out whats wrong.

When i changed the character set from Unicode to Multi Byte i got this dialog box:

The Button and the Icon are drawn in Old Style

I really don't understand why this switch leads to this old window styles. But the bigger problem is: my own application is written completly for Multi Byte Character Set. And its a VERY Big Application. It will take days to convert it to Unicode and since there are things like text parsers included it will not be easy to be sure that everything runs fine after the conversion.

It would be nice if there is a way to get around this problem without switching to unicode.

Does someone know this problem and how to go around?

Thanks in advance.

Best Regards,

Florian

-- modified at 5:28 Friday 27th July, 2007

Re: View Style Changes when switching the compiler option _UNICODE to _MBCS

Mark Salsbery27-Jul-07 6:24

Mark Salsbery

27-Jul-07 6:24

Should have used the generic text routine mappings from the start Wink | ;)

Is it just a manifest problem?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

CreateProcess with write permission

slasktrat26-Jul-07 22:38

slasktrat

26-Jul-07 22:38

Hi
I'm trying to let my application run another application and give it write permission. At the moment i'm using CreateProcess, but can't figure out how to grant the process write permissions..
Tried googling alot, but can't find too many examples.. =/

Can anyone help me..?
Thanks!

Re: CreateProcess with write permission

Sam_c26-Jul-07 23:08

Sam_c

26-Jul-07 23:08

in a bit of a rush... so sorry if this isnt much help Frown | :(

i believe off the top of my head that it depends on how the process is created and under which user rights it is, to allow writing and general interaction.

you want to use
CreateProcessAsUser()[^]

and either get the user account logon or run under impersonation token.
that should fix your problem Smile | :)

Code Project Lounge 101 by John Cardinal

Re: CreateProcess with write permission

slasktrat26-Jul-07 23:34

slasktrat

26-Jul-07 23:34

Thanks!

I've tried with CreateProcessAsUser, but i can't figure out how to get the token without knowing the username and password..?

Re: CreateProcess with write permission

Sam_c27-Jul-07 0:28

Sam_c

27-Jul-07 0:28

just taken this from one of my services from awhile ago
it should be set up correct

<br />
STARTUPINFO startupInfo;<br />
	PROCESS_INFORMATION pi={0};<br />
	LPTSTR szCmdline=_tcsdup(L"");<br />
	<br />
	ZeroMemory(&startupInfo, sizeof(STARTUPINFO)); <br />
	ZeroMemory(&pi, sizeof(pi));<br />
<br />
    startupInfo.cb = sizeof(STARTUPINFO); <br />
	startupInfo.lpReserved = NULL; <br />
	startupInfo.lpDesktop = TEXT("winsta0\\default"); <br />
	startupInfo.lpTitle = NULL; <br />
	startupInfo.dwX = 0; <br />
	startupInfo.dwY = 0; <br />
	startupInfo.dwXSize = 0; <br />
	startupInfo.dwYSize = 0; <br />
	startupInfo.dwXCountChars = 0; <br />
	startupInfo.dwYCountChars = 0; <br />
	startupInfo.dwFillAttribute =0; <br />
	startupInfo.dwFlags = STARTF_USESHOWWINDOW; <br />
	startupInfo.wShowWindow = SW_SHOW; <br />
	startupInfo.cbReserved2 = 0; <br />
	startupInfo.lpReserved2 = NULL; <br />
	startupInfo.hStdInput = /*STARTF_USESTDHANDLES*/0; <br />
	startupInfo.hStdOutput = /*STARTF_USESTDHANDLES*/0; <br />
	startupInfo.hStdError = /*STARTF_USESTDHANDLES*/0;<br />
<br />
<br />
HANDLE hndToken;<br />
HANDLE TDuplicate;<br />
TDuplicate = TOKEN_DUPLICATE;<br />
 if(DuplicateTokenEx(TDuplicate, MAXIMUM_ALLOWED,NULL,SecurityImpersonation, TokenPrimary, &hndToken)==0)<br />
 return 1;<br />
	    if (CreateProcessAsUser(<br />
				hndToken,<br />
                szCmdline,					//Application name/location <br />
                NULL,					//command line, if it is avaible via cmd line this will work.<br />
                NULL,					//process attributes, the secuirty settings can child process inherit the handle<br />
                NULL,					// thread attributes, same as above.<br />
                FALSE,					// can handles be inherited?<br />
                NULL,						// process creation flags, see that name in msdn for list<br />
                NULL, <br />
                NULL, <br />
                &startupInfo, <br />
                &pi ) != 0) <br />
    { <br />
        WaitForSingleObject(pi.hProcess, INFINITE); <br />
<br />
<br />
        // Close process and thread handles <br />
        CloseHandle (pi.hThread); <br />
        CloseHandle (pi.hProcess); <br />
		<br />
    } <br />
    else    // error creating process <br />
    { <br />
		Beep(700,100);<br />
        // Display failure dialog and Exit: <br />
        return FALSE; <br />
    } <br />
<br />
	return 0;<br />
}

Modified:
p.s if anyone can see anything stupid in there let me know please Smile | :)

its from about a year ago and is in my library and i havent checked it before posting as its time for lunch Smile | :)

Code Project Lounge 101 by John Cardinal

Memory Allocation Problem

rjkg26-Jul-07 21:04

rjkg

26-Jul-07 21:04

I have developed a directshow filter . My filter connects the
upstream filter successfully . when I play my filter graph
I got the following error
cannot allocate memory because no size has been set
(return code 0x8004022)

RajeshGupta

Re: Memory Allocation Problem

VonHagNDaz27-Jul-07 1:35

VonHagNDaz

27-Jul-07 1:35

code?

[Insert Witty Sig Here]

Re: Memory Allocation Problem

rjkg27-Jul-07 21:34

rjkg

27-Jul-07 21:34

this is my code
//----------------------------------------------------------------
HRESULT CNetRecievePin::DecideBufferSize(IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *pRequest)
{
HRESULT hr;
CAutoLock cAutoLock(m_pFilter->pStateLock());
CheckPointer(pAlloc, E_POINTER);
CheckPointer(pRequest, E_POINTER);
VIDEOINFOHEADER *pvi = (VIDEOINFOHEADER*) m_mt.Format();
//Ensure a minimum number of buffers
if (pRequest->cBuffers == 0)
{
pRequest->cBuffers =2;
}
pRequest->cbBuffer = pvi->bmiHeader.biSizeImage;
ALLOCATOR_PROPERTIES Actual;
hr = pAlloc->SetProperties(pRequest, &Actual);
if (FAILED(hr))
{
return E_FAIL;
}
//Is this allocator unsuitable?
if (Actual.cbBuffer < pRequest->cbBuffer)
{
return E_FAIL;
}
return S_OK;
}
//----------------------------------------------------------------------

RajeshGupta

html-help: expand all contents tabs

includeh1026-Jul-07 21:00

includeh10

26-Jul-07 21:00

how to let all contents tabs of html-help expand when the htmp-file pops up by HtmpHelp(...) function?

it can be done in html-help design or c++ code.

I did see some apps with contents tabs expended when apps' html-help pop up.

thx.

.obj file

ShilpiP26-Jul-07 19:08

26-Jul-07 19:08

I have one source code of project in which our dll is used that source code is not full source code the client give us obj file instead of cpp and we fix bugs of our dll now linking error occur when i execute that program with new dll. pls help me if anybody have any idea.
Thanks in advance Smile | :)

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

CPallini26-Jul-07 20:49

26-Jul-07 20:49

Maybe (i.e. post error messages for meaningful help) you have changed function signatures.
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.

ShilpiP26-Jul-07 21:22

26-Jul-07 21:22

No i dont change any function signature ,i just fix bugs only. the problem is that as i learn .obj is only compiled file and it is not linked with library when we execute our porgram than it link with library and gives executable file. (.exe ).but in my case it give linking error.

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

CPallini26-Jul-07 21:47

26-Jul-07 21:47

Shilpi Boosar wrote:
the problem is that as i learn .obj is only compiled file and it is not linked with library

the .obj contains the necessary info to perform the function calls to your DLL at runtime hence, if you're stuck with original signatures (and exports) then you shouldn't experience problems. BTW Why don't you post the error message?
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.

ShilpiP26-Jul-07 23:01

26-Jul-07 23:01

i know thats y i said that i dont change any signature of API that is exported .i just fix bugs.

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

CPallini26-Jul-07 23:13

26-Jul-07 23:13

OK, to summarize, all the info I got from you, are: "I fixed bugs". Hence, all that I can deduce is that your executable works fine, congratulations! Big Grin | :-D

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.

ShilpiP26-Jul-07 23:22

26-Jul-07 23:22

No mam that is the main problem that program is not working .
any ways thanks

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

Shouvik Das26-Jul-07 23:48

Shouvik Das

26-Jul-07 23:48

what linker error are u gettin. please post the error so that we can get more clarity over your problem. C_Pallini Has asked to two times to post the error!
We are eager to help but you are not letting us Big Grin | :-D

There are only two kinds of people who are really fascinating-people who know absolutely everything, and people who know absolutely nothing.
Oscar Wilde (1854-1900)
Regards...
Shouvik

CPallini27-Jul-07 0:03