Quick simple question about string - C / C++ / MFC Discussion Boards

Re: GUI thread priority

rp_suman23-Jun-08 20:52

rp_suman

23-Jun-08 20:52

I got it using GetThreadPriority() function inside InitInstance(), it is normal priority(THREAD_PRIORITY_NORMAL = 0).

--
"Programming is an art that fights back!"

Re: GUI thread priority

Cedric Moonen23-Jun-08 21:24

Cedric Moonen

23-Jun-08 21:24

It's not a answer to your question, but are you really sure that you want to change the GUI thread priority ? If you are still talking about the same problem as yesterday, then I guess that changing the thread priority to avoid a race condition is not the way to go. Besides, if you handle that not correctly you may end up freezing your whole system.

If you use critical section with care, that should solve a lot of your problem (even if you think this will be slower).

Cédric Moonen
Software developer

Charting control [v1.4]

Re: GUI thread priority

Rajesh R Subramanian24-Jun-08 0:32

Rajesh R Subramanian

24-Jun-08 0:32

Hi Cedric,

Is that just me or nobody's CPMRU will be able to cope with this[^] post? Please tell me that I'm not alone. Unsure | :~

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: GUI thread priority

Cedric Moonen24-Jun-08 1:34

Cedric Moonen

24-Jun-08 1:34

No, you're not alone Big Grin | :-D

Cédric Moonen
Software developer

Charting control [v1.4]

Re: GUI thread priority

rp_suman24-Jun-08 14:43

rp_suman

24-Jun-08 14:43

Hi,

I asked this to just know and not for any problem.

That problem of race condition resolved already by updating write pointer count only after current write is finish which Pallini suggested.

BTW: My current project consists of many threads, timer, callback from me and other developers, thats why I wanted to know priority level of each.

Thanks for all your help!!

Regards,
Suman

--
"Programming is an art that fights back!"

Re: GUI thread priority

Rajesh R Subramanian23-Jun-08 21:42

Rajesh R Subramanian

23-Jun-08 21:42

Oh my God! Is it related to this[^]? If yes, you're doing a terrible thing. Please follow the guidance given to you by Cedric.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: GUI thread priority

rp_suman24-Jun-08 16:21

rp_suman

24-Jun-08 16:21

Hi,

It is not related to this problem, this problem resolved already as I replied to Cedric Moonen.

Thanks & Regards,
Suman

--
"Programming is an art that fights back!"

Quick simple question about string

monsieur_jj23-Jun-08 20:16

monsieur_jj

23-Jun-08 20:16

Hi all,

How can I pass to a string variable the content of an environment variable?

for example

string a;

I want the content of a the value of the environment variable TEMP?

Thanks,
Jayjay

Re: Quick simple question about string

_AnsHUMAN_ 23-Jun-08 20:27

_AnsHUMAN_

23-Jun-08 20:27

Does this GetEnvironmentVariable(/*parameters*/) help

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Quick simple question about string

monsieur_jj23-Jun-08 20:44

monsieur_jj

23-Jun-08 20:44

Thanks Anshuman it works now

Re: Quick simple question about string

rp_suman23-Jun-08 20:32

rp_suman

23-Jun-08 20:32

Hi,

I am not sure about data type of environment variable, but if you know the data type, you can use CString variable and format it.

Refer here:CString::Format[^]

What compiler are you using?

Regards,
Suman

--
"Programming is an art that fights back!"

registering uccapi

kumarnitesh23-Jun-08 20:11

kumarnitesh

23-Jun-08 20:11

I have an application which need to start the audio/video settings on a button click. I have written code for that:
************start of code**********************************************
HRESULT hr = CoInitialize(0);
if (FAILED(hr))//CoInitialize failed
return hr;

//Obtain a pointer to the IUccPlatform interface
//by way of the cocreatable UccPlatform class.
CComPtr <IUccPlatform> pIUccPlatform;

hr = CoCreateInstance
(
__uuidof(UccPlatform),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IUccPlatform),
(LPVOID *)&pIUccPlatform
);

if (FAILED(hr))
{
AfxMessageBox(IDS_STR_ERROR_COCREATE_INSTANCE);
return hr;
}

CComBSTR bstrAppName = _T("application");
hr = pIUccPlatform->Initialize( bstrAppName);

if (FAILED(hr))
{
AfxMessageBox (IDS_STR_ERROR_INITIALIZE);
return false;
//device settings
}

CComPtr<IUccMediaDeviceSettings> spMediaDeviceSettingsPtr;
pIUccPlatform->QueryInterface( &spMediaDeviceSettingsPtr );

spMediaDeviceSettingsPtr->InvokeTuningWizard((OAHWND)theApp.m_pMainWnd->m_hWnd, UCCTWP_AUDIO | UCCTWP_AUDIO_NONPRIVATE | UCCTWP_AUDIO_NOTIFICATION);
//AfxMessageBox(IDS_STR_ERROR_INVOKE_TUNING_WIZARD);
pIUccPlatform->Shutdown();

*****************End of Code************************

and as I know we have to add the three dlls(UCCAPIRES.dll,UccApi.dll,RTMPLTFM.dll) in application project, I have done that and I also got success in that. But when I run my application on other system after clicking button to start the audio/video settings I got an error message "Error CoCreateInstance ".
If any idea then please share.

Configuration for apllication is

WindowsXp
C++ .net2005

how to build the genprint sample

vicky0000023-Jun-08 19:15

vicky00000

23-Jun-08 19:15

Hai all,
I need to build the genprint application which is available in ..../Windows DDK../src/print/genprint sample.. application.

Please help me.

Re: how to build the genprint sample

Rajesh R Subramanian23-Jun-08 19:17

Rajesh R Subramanian

23-Jun-08 19:17

What did you try?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: how to build the genprint sample

vicky0000023-Jun-08 19:24

vicky00000

23-Jun-08 19:24

hi just i try to build the genprint samples (sample printer driver).please see this link
http://msdn.microsoft.com/en-us/library/aa505860.aspx[^]

Re: how to build the genprint sample

Rajesh R Subramanian23-Jun-08 19:34

Rajesh R Subramanian

23-Jun-08 19:34

Well, you haven't answered my question. What did you try? Where and what is the problem?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: how to build the genprint sample

vicky0000023-Jun-08 19:37

vicky00000

23-Jun-08 19:37

Realy i don't know how to build. I tried by build using BUILD command in dos

Creating shortcuts both in vista and xp

VCProgrammer23-Jun-08 19:07

VCProgrammer

23-Jun-08 19:07

Hi all,

I am trying to create Program group shortcut both in vista and xp, and then after that i want to delete these shortcut through coding...

How can i do this......

Thanks in advance

Picasa Web Albums Data API

capint23-Jun-08 18:57

capint

23-Jun-08 18:57

I want to write an application interacting with Picasa Web Albums of Google by MFC. I've read this document : http://code.google.com/apis/gdata/basics.html[^]
but I still have no idea how to write it in MFC. Some one plz help me Rose | [Rose]

Re: Picasa Web Albums Data API

Rajesh R Subramanian23-Jun-08 19:05

Rajesh R Subramanian

23-Jun-08 19:05

Here[^] is the developer's guide for Picasa Web albums Data API, here[^] is the reference and here[^] is the group, where you could discuss with other developers (about specific issues) while developing applications with that very API.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

How to scroll the IE window? [modified]

Michael ZY23-Jun-08 18:47

Michael ZY

23-Jun-08 18:47

I'm writing a App to scroll the window which is not foreground with the mouse wheel, And Use the Mouse hook In my code, first i reDirect the message like this:

POINT pt;
::GetCursorPos(&pt);
pMHSEX->MOUSEHOOKSTRUCT.hwnd=::WindowFromPoint(pt); //reDirect

but this do not take effert so i change the code :

POINT pt;
::GetCursorPos(&amp;pt);
pMHSEX->MOUSEHOOKSTRUCT.hwnd=::WindowFromPoint(pt); 
::SendMessage(pMHSEX->MOUSEHOOKSTRUCT.hwnd,WM_MOUSEWHEEL,pMHSEX->mouseData,0);
return TRUE:

this works in many windows (foreground or not foreground with scrollbar inside) when the mouse move on it with the wheel scrolled, these window were all act,but when the mouse move to the IE window with Scrollbar then scroll the mouse wheel it does work Frown | :(

I have searched some article, and some about the window whose class name is "Internet Explorer_Server", and i try to test:

#define ID_IE_ID_ADDFAV 2384
::SendMessage( pMHSEX->MOUSEHOOKSTRUCT.hwnd, WM_COMMAND,MAKEWPARAM(LOWORD(ID_IE_ID_ADDFAV),0x00), 0);

it appear a IE add favorite window, but how do i send a Scroll meesage to this window ?

Can someone help me? Thanks Smile | :)

modified on Tuesday, June 24, 2008 7:14 AM

File count

projectip23-Jun-08 18:43

projectip

23-Jun-08 18:43

I have to get the total count of the files present in a folder.I have to do a file transfer from that folder to another on a button click.Any help?Im using vc++

Re: File count

Naveen23-Jun-08 18:50

Naveen

23-Jun-08 18:50

try FindFirstFile() and FindNextFile() or its MFC wrapper CFileFind to find the number of files in a folder

If you want to copy the entire contents of folder at once use SHFileOperation or if you want to copy one by one, use CopyFile().

nave

[OpenedFileFinder]

Re: File count

projectip23-Jun-08 19:32

projectip

23-Jun-08 19:32

Please check my code...

void CMydlgtestDlg::Oncount() 
{
int count=0;
CFileFind f;
CString file="D:\\mframes";
if(f.FindFile(LPCTSTR(file)))
{
	count++;
	f.FindNextFile();
}
AfxMessageBox(count);

Re: File count

Naveen23-Jun-08 19:42

Naveen

23-Jun-08 19:42

Like this..

int count=0;
   CFileFind f;
   CString file="D:\\mframes\\*.*";
   BOOL bFound = f.FindFile(file);
   while( bFound )
   {
	   bFound = f.FindNextFile();
	   if( !f.IsDirectory())
	   {
		   count++;	
	   }	   
	   
   }

nave

[OpenedFileFinder]

modified on Tuesday, June 24, 2008 2:14 AM

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