C / C++ / MFC

Re: Problem in updating from vs2002 to vs2008

13-Jul-09 2:37

What are the template parameters of the vector? Also, if you have an infinite loop (which you have) I'm not surprised that you get an error - you're going to exhaust memory.

When you post a code sample, it helps if you a) select the "Encode HTML tags when pasting" option below the posting edit box and b) put it in a code block (select the code and then click the "code block" thing above the posting edit box.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Randor 13-Jul-09 19:49

Randor

13-Jul-09 19:49

yogeshs wrote:
Is anything different in vs2008 fro vectors?

Are you reading/writing to the vector from multiple threads? VS2002 had some sort of non-standard thread safety implementation. A few months ago I upgraded a HUGE project which was reading/writing to std:vector and std:map from VS2002 and the application showed absolutely no evidence of race conditions. Once I upgraded the project to VS2008 it was crashing everywhere. I ended up deriving a class from std:vector/std:map and using a mutex to synchronize reads/writes.

Best Wishes,
-David Delaune

How to Use IQueryAssociations

Nitheesh George13-Jul-09 1:24

Nitheesh George

13-Jul-09 1:24

Hi,

How can i use IQueryAssociations interface to get all applications & its executable path associated to a specified file extensios such as .txt.

ie I mean , I wanted to a construct a list of applications associated to .txt file extesion.

thanks

Nitheesh

Jose Jo Martin

http://www.simpletools.co.in

VC++ 6.0 - No Unicode in debug output window

khb13-Jul-09 1:14

khb

13-Jul-09 1:14

Hello together,

I'm using VC++ 6.0 for developing a Unicode application. It works fine, but I have a problem with Unicode output in the debug window. As described everywhere, I checked "Tools->Options->Debug->Display Unicode strings" and I use the TRACE0, TRACE1, etc. macros. But Unicode characters are still shown as '?'.

Does anyone has a solution for this? Thanks in advance...

Kind regards
Marcus

Rajesh R Subramanian13-Jul-09 1:26

Rajesh R Subramanian

13-Jul-09 1:26

Try displaying L"Unicode Text" from your program. If you see proper output, then it might probably be that the actual Unicode text (language) you're trying to display is not installed on your system.

It is a crappy thing, but it's life -^ Carlo Pallini

khb13-Jul-09 2:14

khb

13-Jul-09 2:14

Thank you for your reply Rajesh. Using L"..." shows correct characters if I just type Latin characters. If I use a message box then, for example, Russian characters are shown correctly but not for the debug window. Do you have any further advice for me?

Kind regards
Marcus

Rajesh R Subramanian13-Jul-09 2:35

Rajesh R Subramanian

13-Jul-09 2:35

You're welcome, Marcus. Have you tried setting a valid Russian Unicode font as the default font for debugger output window? (I'm assuming that the language is installed on your machine, because you say it appears properly on a message box).

It is a crappy thing, but it's life -^ Carlo Pallini

Monitoring Window Creation in another Process

khb13-Jul-09 3:27

khb

13-Jul-09 3:27

I tried all fonts that I can select in VC6's settings but none did the trick. Is there a way to add new fonts? I never figured out how to do this...

Kind regards
Marcus

Steve Thresher13-Jul-09 0:52

Steve Thresher

13-Jul-09 0:52

Is it possible to write a program that monitors dialog creation in all processes and auto-fills some edit controls when a particular dialog is detected?

I have an application that prompts the user to login. I also know where the login details are stored so I'd like to be able to auto-fill the username and password controls whenever the login dialog is created. I'm trying to avoid building a back door into the application that could be exploited by end-users.

Stuart Dootson13-Jul-09 1:01

13-Jul-09 1:01

Windows CBT Hooks[^]?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Steve Thresher13-Jul-09 1:12

Steve Thresher

13-Jul-09 1:12

Looks like a good place to start. Thanks for the info.

kilt15-Jul-09 5:47

kilt

15-Jul-09 5:47

No, you don't need hooks.
Just use W32 System notifications

Stuart Dootson15-Jul-09 5:49

Create a Windows media player control at runtime.

15-Jul-09 5:49

Tell the OP that, then, rather than me.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Sakthivel P13-Jul-09 0:49

Sakthivel P

13-Jul-09 0:49

I have a application which is need windows media player control to play video file.

For that I inserted a Windows Media Player control through Insert ActiveX control in my application. And I Create a variable m_WMPlayer for that media player by Add variable option. Now the system adds a Class called CWMPlayer and adds line of code in DoDataExchange() as

DDX_Control(pDX, IDC_GUI_GAM_TRAILER, m_WMPlayer); // Query1

And I use this m_WMPlayer variable for set URL and uiMode.

m_WMPlayer.put_URL(strTrailerPath);
m_WMPlayer.put_uiMode(_T("mini"));

Here my query is, When I execute the code, The above line (Query1) doesn't create window handle for m_WMPlayer object. CWnd handle still null.

~Sakthi

Re: Create a Windows media player control at runtime.

Stuart Dootson13-Jul-09 1:15

Re: Create a Windows media player control at runtime.

13-Jul-09 1:15

I think you'll find that the media player control is windowless (i.e. it's not contained within its own window). If you use Spy++, I think you'll see there's no window associated with teh control.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Sakthivel P13-Jul-09 1:35

Sakthivel P

13-Jul-09 1:35

The problem is video is playing well but the controls (Play, Stop and volume) doesn't visible. when I move the cursor in Media player control the tooltip text show "Play", "Stop", ...

Re: Create a Windows media player control at runtime.

Stuart Dootson13-Jul-09 2:43

13-Jul-09 2:43

Can't duplicate that - I get the controls on an instance of the Windows Media Player that I've added to a sample dialog app.

I even tried setting the control's uiMode property to 'none' in the designer and 'mini' in the dialog's OnInitDialog, to see if that caused issues, but it worked as expected, with the player's controls being displayed.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

registry access problem

Mogamboo_Khush_Hua12-Jul-09 23:38

Mogamboo_Khush_Hua

12-Jul-09 23:38

Hi , i have developed a program to read registry from local machine,now when i run the exe in a machine which is logged in as admin then my exe gives correct value but when i run in a machine that do not logged in as a user which is not part of admin group then i cannot access to registry why it so.

If i use wmi to read registry then will the above problem get solved ???

CPallini13-Jul-09 0:10

CPallini

13-Jul-09 0:10

This is a Vista related issue, I suppose. A program having 'standard' user privileges can only access the HKEY_CURRENT_USER tree, as far as I know.
Smile | :)

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Mogamboo_Khush_Hua13-Jul-09 1:00

Mogamboo_Khush_Hua

13-Jul-09 1:00

No i am running in windows xp network and i am reading this key

HKEY_CURRENT_USER\\Software\\Policies\\Microsoft\\Windows\\Control Panel\\Desktop\\ScreenSaveTimeOut

This key is set through group policy by the system admin for a particular domain but i am unable to read this key in non admin rights , but in admin rights i can read this key.

Why it is soooooooooo ??

Below is my code

void GetScreenSaverTimeOutInfo()
	{
		try
		{
			HKEY hKey;
			strCategory=SysAllocString(L"ScreenSaverInfo");
			strItemName=SysAllocString(L"ScreenSaveTimeOut");
			strInstallDate=SysAllocString(L"-NA-");
			strVersion=SysAllocString(L"-NA-");
			strValue1=SysAllocString(L"-NA-");
			strValue2=SysAllocString(L"-NA-");
			strValue3=SysAllocString(L"-NA-");

			if (RegOpenKeyEx(HKEY_CURRENT_USER, TEXT("Software\\Policies\\Microsoft\\Windows\\Control Panel\\Desktop"), 0, KEY_ALL_ACCESS, &hKey)!=ERROR_SUCCESS)
			{
				WriteToFile(GetNewRow());
			}
			else
			{
				DWORD dwType = REG_SZ;
				TCHAR buf[10] ;
				DWORD dwBufSize = 10;
				
				if( RegQueryValueEx(hKey,TEXT("ScreenSaveTimeOut"),0, &dwType, (LPBYTE)&buf, &dwBufSize) == ERROR_SUCCESS)
				{
					strValue1=SysAllocString(buf);
					WriteToFile(GetNewRow());

					SysFreeString(strValue1);
					SysFreeString(buf);
				}
				else
				{
					WriteToFile(GetNewRow());
				}
				RegCloseKey(hKey);
			}


			SysFreeString(strCategory);
			SysFreeString(strItemName);
			SysFreeString(strInstallDate);
			SysFreeString(strVersion);
			SysFreeString(strValue1);
			SysFreeString(strValue2);
			SysFreeString(strValue3);
		}
		catch(char *error)
		{
			//Release();
			error="Error occurred in function GetScreenSaverSecureInfo()";
			throw error;
		}
	}

Stuart Dootson13-Jul-09 1:05

13-Jul-09 1:05

It's because that key is protected from user access - registry keys can have permissions and ACLs just like files can. You can see and manipulate those using regedit.

The group policy stuff does a lot of this sort of thing - you'll find even if you change the values under the key, they'll get reset again when you next login.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Mogamboo_Khush_Hua13-Jul-09 1:18

Mogamboo_Khush_Hua

13-Jul-09 1:18

is there any way i can read this key ??????????

Sigh | :sigh:

Roger Stoltz13-Jul-09 1:31

Roger Stoltz

13-Jul-09 1:31

Member 6392036 wrote:
is there any way i can read this key ???

Of course, open it with KEY_QUERY_VALUE or KEY_READ access rights instead of KEY_ALL_ACCESS.

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