ATL / WTL / STL

24-Oct-11 10:21

I have some third party code that has stopped working since I moved to VS2010.

A popup color picker now no longer pops up from it's source button. Ultimately, its CWnd::CreateEx call fails (technically the call to AfxCtxCreateWindowEx). GetLastError says 0x00000579 (Invalid menu handle). It doesn't have a menu.

The same code works in VS6.

Any suggestions?

My CREATESTRUCT in CWnd::CreateEx looks like this:
<edit -="" get="" the="" right="" one="" this="" time!="">

lpCreateParams	0x00000000	                void *
hInstance	0x00400000 {unused=9460301 }	HINSTANCE__ *
hMenu	        0x00000000 {unused=??? }	HMENU__ *
hwndParent	0x008a06be {unused=0 }	        HWND__ *
cy	        294	int
cx	        278	int
y	        673	int
x	        571	int
style	        -771751935	                long
lpszName	0x00000000 <Bad Ptr>	        const char *
lpszClass	0x00168828 "Afx:00400000:800"	const char *
dwExStyle	0	                        unsigned long

modified 24-Oct-11 17:58pm.

Richard MacCutchan24-Oct-11 11:20

24-Oct-11 11:20

I see a menu handle in the above, but this may not be valid for some combinations of Window styles.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Kyudos24-Oct-11 11:59

24-Oct-11 11:59

You're right - I edited to put the right one in!

Richard MacCutchan24-Oct-11 12:25

24-Oct-11 12:25

C++

style	        -771751935
// equates to
style	        0xD2000001

and includes both WS_CHILD and WS_POPUP, which is an illegal combination according to the documentation[^].

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Kyudos24-Oct-11 12:54

24-Oct-11 12:54

Thanks Richard - that is a good lead! In the meantime I found that the invalid menu handle message was coming from PreCreateWindow.

This is because:

C:\Program Files\Microsoft Visual Studio\VC98\MFC\SRC\WINCORE.CPP

C++

BOOL CWnd::PreCreateWindow(CREATESTRUCT& cs)
{
    if (cs.lpszClass == NULL)
    {
        // make sure the default window class is registered
        VERIFY(AfxDeferRegisterClass(AFX_WND_REG));

        // no WNDCLASS provided - use child window default
        ASSERT(cs.style & WS_CHILD);
        cs.lpszClass = _afxWnd;
    }
    return TRUE;
}

but

C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\src\mfc\wincore.cpp

C++

BOOL CWnd::PreCreateWindow(CREATESTRUCT& cs)
{
    if (cs.lpszClass == NULL)
    {
        // make sure the default window class is registered
        VERIFY(AfxDeferRegisterClass(AFX_WND_REG));

        // no WNDCLASS provided - use child window default
        ASSERT(cs.style & WS_CHILD);
        cs.lpszClass = _afxWnd;
    }

    if ((cs.hMenu == NULL) && (cs.style & WS_CHILD))
    {
        cs.hMenu = (HMENU)(UINT_PTR)this;
    }

    return TRUE;
}

Richard MacCutchan24-Oct-11 21:11

24-Oct-11 21:11

Good catch, don't you just love MFC!

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Kyudos24-Oct-11 14:09

How to add ActiveX control to a WTL main frame

24-Oct-11 14:09

This turned out to be the problem, cheers!

[third party....grrr... mumble mumble]

sunmast18-Oct-11 0:25

sunmast

18-Oct-11 0:25

Hi all, do you know how to add a ActiveX control to a WTL main frame? I searched quite a lot and it seems all samples are using a dialog inheriting CAxDialogImpl while I do not want to use dialogs. Is it possible to host ActiveX control directly from main frame (which inherits from CFrameWindowImpl)?

Thanks in advance.

Wei

Re: How to add ActiveX control to a WTL main frame

Jonathan Davies18-Oct-11 1:55

Jonathan Davies

18-Oct-11 1:55

If you don't want a dialog what about using a View derived from CWindowImpl to host the ActiveX control?

Re: How to add ActiveX control to a WTL main frame

Jonathan Davies18-Oct-11 1:58

Jonathan Davies

18-Oct-11 1:58

Come to think of it I seem to remember ATL or WTL has window templates designed to host ActiveX controls. I think there's an example on the net that designs and implements a 'Bullseye' ActiveX control.

syslog.h analog in WIndows

ShadowUz16-Oct-11 21:36

ShadowUz

16-Oct-11 21:36

Hello.

I'm porting a *nix C code to Windows using MingW.
Having trouble with syslog.h.

Is there any syslog.h analog in Windows so that I could include the headers like:

#ifdef WIN32
  #include <windows header>
#else
  #include <syslog.h>
#endif

?

Thank you.

Re: syslog.h analog in WIndows

Richard MacCutchan16-Oct-11 23:08

Re: syslog.h analog in WIndows

16-Oct-11 23:08

Here[^] are some possible suggestions.

Unrequited desire is character building. OriginalGriff

Albert Holguin17-Oct-11 5:12

Albert Holguin

17-Oct-11 5:12

See if this article may be of help:
Simple syslog client[^]

I have problem with codecvt<>

Cold_Fearing_Bird5-Oct-11 23:59

Cold_Fearing_Bird

5-Oct-11 23:59

locale loc("chs");
mbstate_t mystate;
char origin[] = "追求追求";
wchar_t  dest[9] =   { 0 };
const char * pc;
wchar_t * pwc;

const codecvt<wchar_t,char,mbstate_t>& myfacet = 
	use_facet<codecvt<wchar_t,char,mbstate_t> >(loc);

codecvt<>.in() translates char into wchar_t characters, but the first letter of origin[] is always translated wrong,the remaining characters are fine.
could someone help me out?

Re: I have problem with codecvt

Madhu Nair12-Oct-11 21:31

Madhu Nair

12-Oct-11 21:31

Cold_Fearing_Bird wrote:
char origin[] = "追求追求";

You are trying to set a unicode/wide string to ANSI buffer.

Message Removed

27-Sep-11 4:03

Youming Lee

27-Sep-11 4:03

Message Removed

Re: why can't calculate the expression.error CXX0030 char **ptr_alph = (char**)malloc(wordCount * sizeof(char *));

Richard MacCutchan27-Sep-11 4:28

Re: why can't calculate the expression.error CXX0030 char **ptr_alph = (char**)malloc(wordCount * sizeof(char *));

27-Sep-11 4:28

I have tried the line of code that you complain about, but it compiles successfully. Please try and be more clear about your problem.

Unrequited desire is character building. OriginalGriff

Youming Lee27-Sep-11 5:07

Youming Lee

27-Sep-11 5:07

Yes,Thank you.i debug in detail this time. I know where is wrong . i know what caused this problerm.
thank you again.

Re: why can't calculate the expression.error CXX0030 char **ptr_alph = (char**)malloc(wordCount * sizeof(char *));

Richard MacCutchan30-Sep-11 10:16

Write REG_MULTI_SZ value in registry

30-Sep-11 10:16

Please don't delete your messages; if you find the answer yourself then post the information so others may benefit from it.

Unrequited desire is character building. OriginalGriff

Cpp_Com26-Sep-11 2:22

Cpp_Com

26-Sep-11 2:22

I want to write a REG_MULTI_SZ value (e.g 100-104) in registry. My code is like

<pre lang="c++">HKEY objHKey;
CString strReturn;
CString subkey("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters");

// Open Registry key for Vlc Path
if( RegOpenKey( HKEY_LOCAL_MACHINE,
(LPCTSTR)subkey, // what to open
&objHKey // on success, handle goes here
) == ERROR_SUCCESS )
{
unsigned char * format = new unsigned char [100];
unsigned char p1[5] = "998";
unsigned char p2[5] = "999";
sprintf((char*)format, "%s\\0%s\\0\\0", p1, p2);
int ILenght = 20;//strlen(format);

unsigned char *ptr= (unsigned char *) strTemp.GetBuffer(0);

if(ERROR_SUCCESS != RegSetValueEx(objHKey,
_T("ReservedPorts"),
NULL,
REG_MULTI_SZ,
//(BYTE*)_T("1000-1004"),
ptr,
strTemp.GetLength()))

{
AfxMessageBox(_T("Failed to update in registry."));
}

// Close the registry
RegCloseKey( objHKey );
}</pre>

But this is not updating in registry.

Re: Write REG_MULTI_SZ value in registry

Richard MacCutchan26-Sep-11 6:28