Debugger not catching a specific WM_KEYDOWN in OpenGL application [PROBLEM RESOLVED] [modified] - C / C++ / MFC Discussion Boards

Akin Ocal30-Jun-07 13:10

30-Jun-07 13:10

In my main scope i declare my pointer variables :

...
PSID ownerSid = NULL ;
PACL pDACL = NULL ;
ownerSid = GetOwnerSIDFromFile (path);
pDACL = GetDACLFromFile (path);
if(ownerSid) FreeSid(ownerSid);
if(pDACL) LocalFree(pDACL);
...

PSID and PACL still cause leakages altgough i try to release them. How can i handle that situation ?

Here are 2 functions i call :

PSID GetOwnerSIDFromFile (char* sFileOrFolderName)
{
DWORD dwRtnCode = 0;
PSID pSidOwner = NULL ;
HANDLE hFile;
SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;

hFile = CreateFile(
sFileOrFolderName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);

if (hFile == INVALID_HANDLE_VALUE)
return NULL ;

AllocateAndInitializeSid(&SIDAuthWorld, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &pSidOwner) ;

if( !pSidOwner )
{
CloseHandle(hFile);

return NULL ;
}

dwRtnCode = GetSecurityInfo(
hFile,
SE_FILE_OBJECT,
OWNER_SECURITY_INFORMATION,
&pSidOwner,
NULL,
NULL,
NULL,
NULL);

CloseHandle(hFile);

return pSidOwner ;
}

PACL GetDACLFromFile (char* sFileOrFolderName)

{
PACL pDACL = NULL ;
DWORD dwRtnCode = 0;

HANDLE hFile;

hFile = CreateFile(
sFileOrFolderName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);

if (hFile == INVALID_HANDLE_VALUE)
return NULL ;

pDACL = (PACL)LocalAlloc(LPTR,sizeof(PACL));

if( !pDACL )
return NULL ;

dwRtnCode = GetSecurityInfo(
hFile,
SE_FILE_OBJECT,
DACL_SECURITY_INFORMATION,
NULL,
NULL,
&pDACL,
NULL,
NULL);

CloseHandle(hFile);

return pDACL ;
}

How to post sample code here.

samal_recw9530-Jun-07 12:45

samal_recw95

30-Jun-07 12:45

All,
I had a small task at hand of tracing out the contents of a packet(generally a binarry array) and was looking for a sample code on web to quickly do it. Couldn't find any, so wrote my own small function. I wanted to share this on this site. I am sure it would be helpful to many sorry souls like me Smile | :)

.

I am already a registered member of this site. But I don't see any link on how to post a small code snippet.

Please adivse.
Samal

Re: How to post sample code here.

Christian Graus30-Jun-07 14:07

Christian Graus

30-Jun-07 14:07

You're describing an article. A code snippet is useless without some text to describe what it does, and how, so you'd want to write a short article and use the article submission wizard to submit it, and the code.

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: How to post sample code here.

samal_recw951-Jul-07 8:13

samal_recw95

1-Jul-07 8:13

thanks.

Data structures

tom groezer30-Jun-07 10:52

tom groezer

30-Jun-07 10:52

What are the best books on data structures starting separately for beginerr and advanced audience.

Re: Data structures

Paresh Chitte1-Jul-07 18:21

Paresh Chitte

1-Jul-07 18:21

Try to search on www.google.com[^].

Regards,

Paresh.

Re: Data structures

David Crow2-Jul-07 4:55

David Crow

2-Jul-07 4:55

I routinely use:

The Art of Computer Programming, Volume 3: Sorting and Searching (2nd Edition)[^]

Algorithms in C++, Parts 1-4: Fundamentals, Data Structure, Sorting, Searching (3rd Edition)[^]

Data Structures and Algorithm Analysis in C (2nd Edition)[^]

Introduction to Algorithms[^]

"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

Debugger not catching a specific WM_KEYDOWN in OpenGL application [PROBLEM RESOLVED] [modified]

Cyrilix30-Jun-07 10:29

Cyrilix

30-Jun-07 10:29

I'm running Visual Studio 2005 and I have a specific key set for toggling between full screen and windowed mode -- F10. The following is a section of my code that runs in a while loop and handles my messages.

while (!m_terminate)
{
	//Check message queue and remove the message after processing
	if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
	{
		if (msg.message == WM_QUIT)
			m_terminate = true;
		else if (msg.message == WM_KEYDOWN)		//DEBUGGING
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
		else
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

//... more code here
}

Now, when I set a breakpoint at if (msg.message == WM_KEYDOWN), whenever I press a key in my program, Visual Studio will break at that line and allow me to debug into it. This works all the time except for when I press F10 (I have a few other keys for toggling things). When I press F10, my program will hang for a little while, and then just continue working as if nothing happened, and my breakpoint will not be hit. I'm curious as to why this is. Anyone have an idea?

I guess I should mention that I have declared MESSAGE msg; outside of the while loop.

MODIFIED: It seems like the F10 key is a special key that is handled differently from the others.

-- modified at 2:44 Sunday 1st July, 2007

Re: Debugger not catching a specific WM_KEYDOWN in OpenGL application

Cyrilix30-Jun-07 17:53

Cyrilix

30-Jun-07 17:53

Here's an addition to my problem. The F9 key is OK (VK_F9), but the F10 key is still not (VK_F10). VK_F9 = 0x78, VK_F10 = 0x79, as expected. Is there something in the details that I should know but that I've completely overlooked (such as VK_F10 being reserved for some kind of system use only, or whatnot)?

Re: Debugger not catching a specific WM_KEYDOWN in OpenGL application

Steve Echols30-Jun-07 19:05

Steve Echols

30-Jun-07 19:05

Only thing I can think of is that F10 is usually associated with "Step Over" when debugging. You could try re-mapping that command in the IDE to some other key.

- S
50 cups of coffee and you know it's on!

Re: Debugger not catching a specific WM_KEYDOWN in OpenGL application

Cyrilix30-Jun-07 20:10

Cyrilix

30-Jun-07 20:10

That's a thought that I had as well, but even when I compile it as release and run it directly from the executable without the debugger, it doesn't work.

HBITMAP size

Axonn Echysttas30-Jun-07 9:37

Axonn Echysttas

30-Jun-07 9:37

Ultra short question : D.

hbmpBackground = (HBITMAP)LoadImage(NULL, (LPCSTR)Path, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_CREATEDIBSECTION);

Can I find out the size of hbmpBackground? With x Heigh in pixels?

-= E C H Y S T T A S =-
The Greater Mind Balance

Blending C++ with COM ^

Re: HBITMAP size

Randor 30-Jun-07 11:24

Randor

30-Jun-07 11:24

<br />
BITMAP bm;<br />
GetObject(hbmpBackground,sizeof(bm),&bm);<br />
int width = bm.bmWidth;<br />
int height = bm.bmHeight;<br />
DeleteObject(hbmpBackground);<br />

Best Wishes,
-Randor (David Delaune)

Software Project

Apr^Ngp30-Jun-07 5:16

Apr^Ngp

30-Jun-07 5:16

I am in BE final year & I am required to do a project.
Friends plz help me in this & suugest me some good topics, I am not asking for any code, I just need TOPICS.

Apurv

Re: Software Project

Luc Pattyn30-Jun-07 5:34

Luc Pattyn

30-Jun-07 5:34

There are thousands of topics on the CodeProject web site alone;
some are solved (articles), some are not solved (parts of the discussion boards).

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: Software Project

Cyrilix30-Jun-07 10:30

Cyrilix

30-Jun-07 10:30

How about a multithreaded game engine using a specific graphics API capable of navigating through a heightmapped terrain?

Re: Software Project

David Crow2-Jul-07 4:56

David Crow

2-Jul-07 4:56

Don't you have a topic/thesis advisor for this? I would think that a final-year student would be well-equipped to do this sort of thing with little guidance.

"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

installed softwares via registry

Akin Ocal30-Jun-07 4:55

Akin Ocal

30-Jun-07 4:55

How can i get list of installed softwares on system via Registry ( in my project i mustnt use MSI)

Thank you very much

Re: installed softwares via registry

Michael Dunn30-Jun-07 11:54

Michael Dunn

30-Jun-07 11:54

Look at the keys under HKLM\software\Microsoft\Windows\CurrentVersion\uninstall

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Dunder-Mifflin, this is Pam.

Re: installed softwares via registry

Akin Ocal30-Jun-07 13:09

Akin Ocal

30-Jun-07 13:09

Thank you very much , but is there a way to get datas of MSI-style installed sws ? For ex. how can i get publisher or version data from registry ?

Regards

Re: installed softwares via registry

Rajesh R Subramanian30-Jun-07 21:29

Rajesh R Subramanian

30-Jun-07 21:29

Did you bother opening the registry and navigating to that hive? Suspicious | :suss:

You have the publisher, version and all other information there.

Nobody can give you wiser advice than yourself. - Cicero

Re: installed softwares via registry

Michael Dunn1-Jul-07 12:27

Michael Dunn

1-Jul-07 12:27

There are APIs for getting that info from MSI. The APIs all start with Msi so they'll be easy to find.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Dunder-Mifflin, this is Pam.

Re: installed softwares via registry

Akin Ocal1-Jul-07 17:44

Akin Ocal

1-Jul-07 17:44

Thank you Michael , but as you can see from my first post :

i cant use MSI in my project , it must be via registry.

Re: installed softwares via registry

David Crow2-Jul-07 5:00

David Crow

2-Jul-07 5:00

See here.

"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

Is this possible with VC2005? (modify code and continue working...)

Joan M30-Jun-07 4:54

Joan M

30-Jun-07 4:54

Hello all,

There is something that I'm missing in VC++2005, and I wanted to ask if it is possible or not.

In VC++6 you were able to modify one line of code and continue executing the program with that modification active... is this possible with the new VC++?

As always thank you in advance.

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