C / C++ / MFC Discussion Boards

hamidreza_buddy30-Sep-05 22:57

30-Sep-05 22:57

it in my dll
USHORT * myfunc()
{
USHORT *pt = new USHORT[length];
return pt;
}

and i want to return pt to the application which uses the dll.
its in my app
USHORT *xx = myfunc();

Re: allocating memory in a DLL

John M. Drescher1-Oct-05 1:55

John M. Drescher

1-Oct-05 1:55

There is nothing wrong with the allocation. What problem are you experiencing?

John

Re: allocating memory in a DLL

Cedric Moonen1-Oct-05 3:48

Cedric Moonen

1-Oct-05 3:48

Be sure that the memory allocated in the dll is freed by the dll and not by the application ! If you try to delete this pointer inside your application, it will crash.

Z-order of parent

Ashman30-Sep-05 20:56

Ashman

30-Sep-05 20:56

Hi,
I am busting my brain trying to get my parent dialog to have topmost priority over a child dialog. I have a fullscreen child dialog that I want to sit behind the parent dlg but the parent is continuously behind it. I have used MSDN and tried SetWindowPos.... however, in MSDN library there are 7 parameters for this function.... When I use SetWindowPos, I only have 6?

My SetWindowPos();
BOOL SetWindowPos(const *CWnd pWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags);

MSDN SetWindowPos();
BOOL SetWindowPos(HWND hWnd, HWND hWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags);

Its starting to really confuse me.... if anyone can help, it would be greatly appreciated.

Thanks

Ashman

I'm normally not a praying man, but if you're up there, please save me Superman.

Re: Z-order of parent

Mircea Puiu30-Sep-05 21:12

Mircea Puiu

30-Sep-05 21:12

BOOL SetWindowPos(const *CWnd pWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags) is a methode of CWnd class, so when calling it, it positions the object that is an instance of that class.

::SetWindowPos(HWND hWnd, HWND hWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags) needs a parameter to identify the window to be positioned (hWnd)

SkyWalker

Re: Z-order of parent

ThatsAlok30-Sep-05 21:15

ThatsAlok

30-Sep-05 21:15

Mircea Puiu wrote:
SkyWalker

SkyWalker getting very Fast Smile | :)

....

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Z-order of parent

Mircea Puiu30-Sep-05 21:32

Mircea Puiu

30-Sep-05 21:32

SkyWalker

Re: Z-order of parent

ThatsAlok30-Sep-05 21:14

ThatsAlok

30-Sep-05 21:14

Ashman wrote:
BOOL SetWindowPos(const *CWnd pWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags);

this MFC based version of SetWindowPos.. here the Detail of current Window Handle is hidden from user ... oops concept Smile | :)

..

Ashman wrote:
BOOL SetWindowPos(HWND hWnd, HWND hWndInsertAfter, int X, int Y, int cx, int cy, UINT uFlags);
this api version of SetWindowPos function.. now to access this function in mfc based application you have to use '::' scope resolution operator...

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Copy /Paste of CTreeCtrl

swarnamanoo30-Sep-05 20:46

swarnamanoo

30-Sep-05 20:46

Hi all..
I want to perform copy paste operations on the items of the tree Ctrl.Can any one provide me with the code.

Re: Copy /Paste of CTreeCtrl

Mircea Puiu1-Oct-05 0:47

Mircea Puiu

1-Oct-05 0:47

Have a look at the "Tree Editor" here, at CP:
http://www.codeproject.com/treectrl/TreeEditorPackage.asp[^]

SkyWalker

Adding items to menus

Axonn Echysttas30-Sep-05 20:42

Axonn Echysttas

30-Sep-05 20:42

Hi guys and girls. Short question. Does ANYBODY know how to add an item to a Windows standard context menu after subclassing it? I would like to do that with one of the context menus of the system but without tampering with the registry. It's something related to sending some commands to that menu after the WM_INITMENU message.

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

Re: Adding items to menus

ThatsAlok30-Sep-05 21:19

ThatsAlok

30-Sep-05 21:19

Axonn Echysttas wrote:
I would like to do that with one of the context menus of the system but without tampering with the registry.

How about InsertMenuItem() api

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Adding items to menus

Axonn Echysttas1-Oct-05 1:46

Axonn Echysttas

1-Oct-05 1:46

Yeap, sounds like a great place to start. Thanks Alok, my old friend ::- D.

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

Working on jpg, png, tiff image types in VC++

Joseph Abraham30-Sep-05 19:48

Joseph Abraham

30-Sep-05 19:48

I want to work on images in VC++. Is it possible to load bmp,jpg,png and tiff image types? Unsure | :~

I have heard of IPicture class that uses OLELoadPicture() through which it is possible to load jpg and bmp, but I don't have any idea whether they work on pixel levels like returning and setting pixel values.

Can u help me out? Confused | :confused:

Re: Working on jpg, png, tiff image types in VC++

ThatsAlok30-Sep-05 21:21

ThatsAlok

30-Sep-05 21:21

Joseph Abraham wrote:
Can u help me out?

Yeap... This Class will certainly going to help you Smile | :)

---
http://www.codeproject.com/bitmap/extendedbitmap2.asp

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Working on jpg, png, tiff image types in VC++

Prakash Nadar30-Sep-05 22:31

Prakash Nadar

30-Sep-05 22:31

considering useing GDI+

-prakash

Re: Working on jpg, png, tiff image types in VC++

Joseph Abraham1-Oct-05 2:42

Joseph Abraham

1-Oct-05 2:42

Hye

I am new to VC++ so I don't have much idea about GDI+. Using GDI+ would I be able to work on pixel values of images of different types.

Please help me out Confused | :confused:

Re: Working on jpg, png, tiff image types in VC++

puma-xu9-Oct-05 21:27

puma-xu

9-Oct-05 21:27

hi,I want to convert bmp images into jpg ,But I have no ideal ?could you give me some opinions ,or give me a example ? Thanks!

No pians ,No gains!

Get Process Name

.NetRams30-Sep-05 19:17

.NetRams

30-Sep-05 19:17

Hi,
I would like to prepare a list of files which are created by any install setup file.

for eg.
When user install googlechat.exe

I need to list out the file names which are created by this setup as,
googlechat.exe -> c:\windows\system32\abcd.dll
googlechat.exe -> c:\program files\googlechat\googlechat.exe

I am using Hook Application. Is anybody have solution please.

Be simple and Be sample.

Re: Get Process Name

ThatsAlok30-Sep-05 19:38

ThatsAlok

30-Sep-05 19:38

Rajesh_MP wrote:

I am using Hook Application. Is anybody have solution please.

Since Hook Application/dll run in context of Application, it is hooked so you can use
AfxGetAppName(...) or GetModuleFileName(...) api to get application name

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Get Process Name

.NetRams30-Sep-05 20:50

.NetRams

30-Sep-05 20:50

you are right Gupta,
But when i use that, it just gives me the Process name and fails to give me the setup created file name.

Be simple and Be sample.

string manipulation question

nm_11430-Sep-05 16:26

nm_114

30-Sep-05 16:26

when is it ok to do pch++ and when should you use CharNext/_tcsinc? I'm guessing pch++ is fine for ansi char* and unicode TCHAR* for english, so do you use CharNext/_tcsinc for programs that will have text in a non-english encoding, a non-western european encoding?
- thanks

Re: string manipulation question

Jose Lamas Rios30-Sep-05 17:28

Jose Lamas Rios

30-Sep-05 17:28

pch++ can be used for WCHAR* or, if you know the string is using a code page in which there are no multi-byte chars (e.g., English, Spanish, French), for char* too.

CharNext or _tcsinc are used when you want to write code that can be used, whithout changes, either for SBCS, MBCS, or Unicode builds. For example, the following code:

_TCHAR buffer[] = _T("This is a test");
int nLen = 0;
for (const _TCHAR* pch = buffer; *pch; pch = _tcsinc(pch))
{
   nLen++;
}

gets expanded as follows:

// SBCS (when neither _MBCS nor _UNICODE are defined)
char buffer[] = "This is a test";
int nLen = 0;
for (const char* pch = buffer; *pch; pch = _strinc(pch))
{
   nLen++;
}

// UNICODE (when _UNICODE is defined)
wchar_t buffer[] = L"This is a test";
int nLen = 0;
for (const wchar_t* pch = buffer; *pch; pch = _wcsinc(pch))
{
   nLen++;
}

// MBCS (when _MBCS is defined)
char buffer[] = "This is a test";
int nLen = 0;
for (const char* pch = buffer; *pch; pch = _mbsinc(pch))
{
   nLen++;
}

See also: A Sample Generic-Text Program[^]

--
jlr
http://jlamas.blogspot.com/[^]

Re: string manipulation question

nm_1141-Oct-05 13:10

nm_114

1-Oct-05 13:10

thanks for the reply. just wondering, do you know of any reference that tells which code pages are multi-byte, which are single-byte?
- thanks

scalar deleting destructor

valerie9930-Sep-05 11:05

valerie99

30-Sep-05 11:05

good afternoon,

the app crashed with access violation and "scalar deleting destructor". I think it means there was an explicit call to virtual destructor corrupts stack. But I don't really see when did it happen........ here some part of the code that causing the problem..thanks!

bool chrgDlg::charges()
{
...............

if ( !m_bCanceled )
m_dbANI.MoveNext();
}

if (!m_vecBuffer.empty())
{
m_binOutfile.append (&m_vecBuffer[0], m_vecBuffer.size());
m_vecBuffer.clear();
}

if (!m_binOutfile.empty())
m_binOutfile.sort();

return true;
}

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