C / C++ / MFC Discussion Boards

CosminU11-Jun-05 3:53

11-Jun-05 3:53

I am using the following code to create a bi-dimensional list :

typedef CList<CString, CString&> MYTYPE;<br />
CList<MYTYPE, MYTYPE&> myList;

But I get this :

Error C2582: 'operator =' function is unavailable in 'class'

What I'm doing wrong ?

Regards,
Cosmin Unguru

Re: Bi-dimensional List in MFC

Lasse11-Jun-05 12:14

Lasse

11-Jun-05 12:14

the CList 'class', dont have an overloaded = operator.
You have to implement your own operator

Hmm...

Using IsClipboardFormatAvailable function to check CF_OWNERDISPLAY

hcmuns11-Jun-05 3:52

hcmuns

11-Jun-05 3:52

May I use IsClipboardFormatAvailable function to check CF_OWNERDISPLAY ?

if (IsClipboardFormatAvailable(CF_TEXT) || IsClipboardFormatAvailable(CF_OEMTEXT))
{
HANDLE hClipboardData = GetClipboardData(CF_TEXT);

// char* pchData = (char*)GlobalLock(hClipboardData);

LPTSTR pchData = (LPTSTR)GlobalLock(hClipboardData);

CString strFromClipboard = pchData;

//TextOut(hdc,10,10,strFromClipboard,strFromClipboard.GetLength());

dc->TextOut(0,0,strFromClipboard);
}
else if(IsClipboardFormatAvailable(CF_BITMAP))
{
HBITMAP hClibBmp = (HBITMAP)GetClipboardData(CF_BITMAP);

HDC hMemDC = CreateCompatibleDC(hdc);

HBITMAP hOldBmp = (HBITMAP)SelectObject(hMemDC,hClibBmp);

BITMAP bm;

GetObject(hClibBmp,sizeof(BITMAP),(LPSTR)&bm);

BitBlt(hdc,0,0,bm.bmWidth,bm.bmHeight,hMemDC,0,0,SRCCOPY);

SelectObject(hMemDC,hOldBmp);

DeleteDC(hMemDC);

ReleaseDC(dc);
}
else if (IsClipboardFormatAvailable(CF_OWNERDISPLAY))
{
HWND hClipboardOwner;

HGLOBAL hglobal;

hClipboardOwner = GetClipboardOwner()->GetSafeHwnd();

hglobal = GlobalAlloc(GMEM_MOVEABLE,sizeof(PAINTSTRUCT));

LPPAINTSTRUCT lpps;

lpps = (LPPAINTSTRUCT)GlobalLock(hglobal);

CopyMemory(lpps, &dc->m_ps, sizeof(PAINTSTRUCT));

GlobalUnlock(hglobal);

hdc = dc->Detach();

::SendMessage(hClipboardOwner,WM_PAINTCLIPBOARD, (WPARAM) m_hWnd, (LPARAM) hglobal);

dc->Attach(hdc);
}

Thanks in advance Smile | :)

Visual Assist 6 (or 4.1), Anyone?

Guido Loupias10-Jun-05 23:06

Guido Loupias

10-Jun-05 23:06

Hi, I'd like to try out Visual Assist since Visual C++ 6.0's "syntax highlighing" (yeah right) sucks to put it directly. The problem is I'm running Windows 98 and Visual Assist X (the one I saw in the showcase) doesn't run on it, the Whole Tomato website also won't let me download a previous version. Does anybody still have either a Visual Assist 6 or 4.1 trial installer?

Re: Visual Assist 6 (or 4.1), Anyone?

ThatsAlok10-Jun-05 23:20

ThatsAlok

10-Jun-05 23:20

You can ask there product department for that 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

Re: Visual Assist 6 (or 4.1), Anyone?

Guido Loupias11-Jun-05 0:15

Guido Loupias

11-Jun-05 0:15

Thanks, I'll try that Smile | :)

Re: Visual Assist 6 (or 4.1), Anyone?

John R. Shaw11-Jun-05 0:05

John R. Shaw

11-Jun-05 0:05

1) VC6 "syntax highlighting" is now over 10 years old.
2) Before VC6, highlighting may not have existed (so do not knock it).
3) I started out programming in monocrome (damn), it required that you knew what you were doing without visual clues (imagine that!).
4) I was (origanaly) amazed that a friend of mine went to work for a national communications company and there editor, for there propietary language, did not include a stytax hihlighting edidtor. They had to program in monochorm.

Unless you can write a better IDE with syntax highlitng you have no room to speak (I've written two of them).

Visual Assist is a prime example of how well they wrote the origanal, because the could easely (ralativaly) tye it in.

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

can an app know if computer is connect to the internet?

includeh1010-Jun-05 21:51

includeh10

10-Jun-05 21:51

can my application know if computer is connect to the internet very fast?

if yes, how?
I hope the detection is very fast, i.e. in 500 ms - slow detection is very easy.

thx

includeh10

Re: can an app know if computer is connect to the internet?

John R. Shaw10-Jun-05 22:24

John R. Shaw

10-Jun-05 22:24

http://www.codeproject.com/internet/rasconnection.asp[^]

Give the article above a try!

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Re: can an app know if computer is connect to the internet?

ThatsAlok10-Jun-05 23:24

ThatsAlok

10-Jun-05 23:24

Make A Worker thread that CHECK for internet every 100 ms, that the fastest way to detect any net connection 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

Re: can an app know if computer is connect to the internet?

David Crow11-Jun-05 6:28

David Crow

11-Jun-05 6:28

Try:

IsDestinationReachable()
InetIsOffline()
InternetGetConnectedState()
InternetCheckConnection()
RasEnumConnections()

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

problem with bstr

pardis10-Jun-05 20:45

pardis

10-Jun-05 20:45

Hi all
i want to send a BSTR data to a method of an interface of a com class . i recieved the BSTR from a method of another interface of the same com server ,but it generates a fatal error and terminates the program . is there any task to do before sending BSTR to the method , a conversion or something like that?
thank you . Confused | :confused:

Re: problem with bstr

ThatsAlok10-Jun-05 21:09

ThatsAlok

10-Jun-05 21:09

What Type or Error are you getting and could you show your INTERFACE declaration.

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

cheers,
Alok Gupta

Re: problem with bstr

S. Senthil Kumar10-Jun-05 21:51

S. Senthil Kumar

10-Jun-05 21:51

Might be because of incorrect usage of BSTRs. Wherever possible, I'd suggest using CComBSTR or _bstr_t instead of raw BSTRs, as it is tough to keep track of them.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: problem with bstr

pardis11-Jun-05 1:21

pardis

11-Jun-05 1:21

thank you for your reply
HRESULT ISysR::GetP(BSTR * Blob1) .here the Blob1 is the output parameter .Inline HRESULT ICTParam::SetB(_bstr_t Blob2) and here the Blob2 is the input parameter . i want to send the Blob1 for the SetB method .but it shows the window "send error report " .

Re: problem with bstr

S. Senthil Kumar12-Jun-05 4:59

S. Senthil Kumar

12-Jun-05 4:59

Where exactly does it bomb? I presume your code will be looking like this

HRESULT ISysR::GetP(BSTR *Blob1)
{
    SetB(_bstr_t(*Blob1));
}

First, if Blob1 is an out parameter, it means that there would be no memory allocated (SysAllocString memory) to it, so calling any BSTR methods on Blob1 will blow up. The code calling GetP will probably be like

BSTR val;
GetP(&val);

It's GetP's job to allocate memory for the BSTR and return it back. What does you SetP method look like?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: problem with bstr

pardis18-Jun-05 18:40

pardis

18-Jun-05 18:40

thank you for your reply

IParam.tli file:

HRESULT ICParam::SetB ( _bstr_t Blob ) {
}

Iserv.tlh file :
HRESULT Iserv ::GetP(BSTR* Blob)
and in my code there is :

1 BSTR Blob=0;
2 hr = g_pIserv->GetP (&Blob);
3 if( FAILED( hr ) )
4 {
5 AfxMessageBox(" could not get param ");
6 }
7
8 hr = g_pIW51Param->SetB (Blob);
9 if( FAILED( hr ) )
10{
11 AfxMessageBox(" could not set blob ");
12}

at line 8 there is an error . it shows the error dialog with send error report button and don't send button .it doesn't say the error description

Word Automation

Veera Raghavendra10-Jun-05 19:38

Veera Raghavendra

10-Jun-05 19:38

hai..

I am automating the word application. I need to retrieve the current line where the cursor is placed. And also if any bullets are present at starting of the line, i need the name of the bullet also.Please let me know.

Thanking you.
Rose | [Rose]

E.Veera Raghavendra.

e.veera raghavendra

problem in tab control

chethu66510-Jun-05 19:29

chethu665

10-Jun-05 19:29

hi thanks for the previous help
i have got one more problem .
passing the tab ctrl b/w two files i am inserting the code for that .
but its working only in the debug mode not in the release mode .
i have checked inserting the message boxs . LeftWnd is the treeView window
And CTestPlanView is another Property Page

Event is OnKeyDown

if (nChar == 9)
{
MessageBox("tab pressed");
CSplitterFrame* pFrm = (CSplitterFrame*)GetParentFrame();
if (Item_Type=="D")
{
MessageBox("Item D is Highlighted");
if(app->m_bValue == false)
{
MessageBox("No items in the list");
CTransducerView *pListView=(CTransducerView *)pFrm->GetRightPane();
pListView->m_PropSheet.SetActivePage(0);
app->m_bTreeTabPressed = true;
pListView->SetFocus();
}
else
{
CTestPlanView *pListView = (CTestPlanView*)pFrm->GetRightPane();
pListView->SetFocus();
}

}
else
{
CView* pListView = NULL;
pListView=pFrm->GetRightPane();
app->m_bTreeTabPressed = true;
pListView->SetFocus();
}

Re: problem in tab control

John R. Shaw10-Jun-05 23:23

John R. Shaw

10-Jun-05 23:23

Enclose your code with HTML pre and /pre tags, that will make it easier for us to read your code. Beyond that, after reformatting you code, it still makes no since.

You're getting pointers to frames and panes (both just pointers to windows), which you're not doing anything with.

Example:

{
    CTransducerView *pListView=(CTransducerView *)pFrm->GetRightPane();
    pListView->m_PropSheet.SetActivePage(0); // set active page
    app->m_bTreeTabPressed = true;
    /*
     * The above assumes that you're app-window knows that you've changed
     * pages; unless the page passes that fact back to the the app-window,
     *  it does not know that.
    */
    pListView->SetFocus();
}

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Re: problem in tab control

chethu66511-Jun-05 0:02

chethu665

11-Jun-05 0:02

hi GetRightPane is a function i have written to access many window handles depending on the situation. their are 2 panes right and left, both are splitted .i want to pass tab control from left pane to right pane .but its working in debug mode only not in the release mode .i tried it by doing it in PreTranslateMessage also but no use . i couldn't find the reason for this .using the frame i am getting the window handle of the propertypage i need and using pListView I am setting the focus for the page .

CHtmlView problem

zoid ! 10-Jun-05 16:41

zoid !

10-Jun-05 16:41

c:\program files\microsoft visual studio\vc98\include\mshtml.h(16768) : error C2367: 'IHTMLControlElement' : redefinition; different uuid specifiers
c:\program files\microsoft visual studio\vc98\include\mshtml.h(16768) : see declaration of 'IHTMLControlElement'

Hi,

Whenever I try to compile any project that uses CHtmlView I get the abover error. Any ideas how to fix this.. I took a quick look through the headers and couldn't find another definition of IHTMLControlElement? The error points to the line interface DECLSPEC_UUID("04598fc6-866c-11cf-ab7c-00aa00c08fcf") in mshtml.h

<br />
EXTERN_C const IID IID_IHTMLControlElement;<br />
<br />
#if defined(__cplusplus) && !defined(CINTERFACE)<br />
    <br />
    interface DECLSPEC_UUID("04598fc6-866c-11cf-ab7c-00aa00c08fcf")<br />
	IHTMLControlElement : public IDispatch<br />
    {<br />
    public:

I am using VC6 SP6. This my first time working with CHtmlView and IWebBrowser2 classes and I can't even compile a sample Cry | :((

Creating Multiple Windows

Anonymous10-Jun-05 16:10

Anonymous

10-Jun-05 16:10

Can anyone please tell me how to create multiple windows that show up on the screen at the same time, and also if there is any libraries that support .gif within a window, if so, please point me in the right direction... thank you

Re: Creating Multiple Windows

John R. Shaw10-Jun-05 19:39

John R. Shaw

10-Jun-05 19:39

I've not done multple seperate windows on the screen (under windows), but it should not be difficult (a window is a window). As for .gif support, well GDI+ probably supports that (SDK @ microsoft.com) and there are articles at CP that will direct you in the correct direction (namely CxImage).

Notes:
1) There are several aticles on GDI+ at CP.
2) Multple seperate windows: Child windows that are not resticted to diplaying inside the main application window.
3) You can probably create a non-child window by simply creating a window with the parent window set to NULL.

Any-way, just some thoughts off the top of my head.

I dought any of that helps but good luck, any-way.

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Re: Creating Multiple Windows

shatterstar645710-Jun-05 22:31

shatterstar6457

10-Jun-05 22:31

Okay, but would i have to create an array of HINSTANCE object variables or an array of HWND object variables, by the way, the win32 API is being used to do this, as for the GDI+ thingamajig, where can i download the sdk?

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