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Hi everybody,
I have added a button in Internet Explorer. When I toggle this button, I want to write and load values to and from the IE->Internet Options->Connections->LAN Settings->Advanced dialog.
Q1: Does anyone know how to directly (not going through the registry) change the values in the above mentioned dialog?
Q2: If this is not possible (direct access), then I know how to change the registry settings which IE reads every time it is started. However, being a button in IE, I need the registry settings to reflect immediately to IE without closing (now that would be stupid). This may be inefficient but if it's the only solution then how can I do it? I've been told that it could be done by broadcasting WM_SETTINGCHANGE to all top-level windows. But I don't know the syntax of the wParam or lParam argument it expects. I've tried the reg key that was changed and even tried with nothing at all (SendMessage(HWND_BROADCAST, WM_SETTINGCHANGE, 0, 0)), but still the changes are not visible at runtime in IE.
I have a strict deadline in two days and I really need to fix this!!!
Any help would be greatly appreciated,
/Tommy
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On Windows 2000 I need to know whether a particular disk is Basic or Dynamic . Is there a API through which I can get this info' or is it available through WMI(if so what is the WMI class I need to go far).
thanks
Kannan
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I think UINT GetDriveType(LPCTSTR lpRootPathName) should do the trick.
It takes a string to the rootpath and returns an unsigned int containing:
0 The drive type cannot be determined.
1 The root directory does not exist.
DRIVE_REMOVABLE The drive can be removed from the drive.
DRIVE_FIXED The disk cannot be removed from the drive.
DRIVE_REMOTE The drive is a remote (network) drive.
DRIVE_CDROM The drive is a CD-ROM drive.
DRIVE_RAMDISK The drive is a RAM disk.
"After all it's just text at the end of the day. - Colin Davies
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thanks for the info', but I think I need a different type
of information. I think I need to fillin more info.
In Win2K and above OS's you have this option of having dynamic volumes. By default, I think its the Basic volume which can then be converted to dynamic.
You do this by rt clicking My Computer->Manage->Disk Management->Rt. Click on Disk 0 -> Convert to Dynamic Disk. I would like to know whether a Disk is Basic or Dynamic.
thanks again for the reply.
regards
Kannan
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Hello
I am doing a project where I have to display multiple HTML pages in a tabbed format like in the Opera Web browser. I intend to use the Property Pages for the tabbing and CHtmlView for the display.
Can you tell me how to start off? If you have any alternative to using this combination, that would be fine too.
Regards
Sridhar J
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When I use CListCtrl::SetBkImage(..), the function returned FALSE
In my application
In CMyWinApp::InitInstance(..) {...
// I Add
AfxOleinit();
}
void CMyListView::OnInitialUpdate()
{
CListView::OnInitialUpdate();
CListCtrl& ListCtrl = GetListCtrl();
HBITMAP bmp = (HBITMAP) ::LoadImage(AfxGetInstanceHandle(), "F:\\jpeg2\\first\\Bk.bmp",
IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR | LR_LOADFROMFILE);
ASSERT(bmp != NULL);
ASSERT(ListCtrl.SetBkImage(bmp)); // Wrong here !!!
....
}
It's me, code_cold
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I have a MFC dialog based app, which is a small setup for another program. This setup may save data with a specific file extension, say ".evl" . So if i double click on a .evl file, it opens automatically my app (Because i asked it to do so the first time i double clicked, you know, with the Open with...) and then  ... How do i programatically catch that the user actually started the app by double clicking, and how do i retrieve the file name ???
Thanks
RaGE
~RaGE();
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Check out the following:
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);
if (!ProcessShellCommand(cmdInfo))
return FALSE;
Generally, this is put into the InitInstance of the app class.
Dylan Kenneally
London, UK
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I've tried to override ReportSaveLoadException in one of my classes, but when I trace into it, it seems to ignore me! 
The class is called COleServerDocEx and is based on COleServerDoc, so I added this to the header:
public:
virtual void ReportSaveLoadException(LPCTSTR lpszPathName, CException* e, BOOL bSaving, UINT nIDPDefault);
And this to cpp file:
void COleServerDocEx::ReportSaveLoadException(LPCTSTR lpszPathName, CException* e, BOOL bSaving, UINT nIDPDefault)
{
}When I trace into it (i.e. tell the app to open a file that I know will fail), I end up in COleLinkingDoc::ReportSaveLoadException - what am I doing wrong?
Dylan Kenneally
London, UK
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Having mysterious problems? 'Rebuild all' can help. 
Tomasz Sowinski -- http://www.shooltz.com
- It's for protection
- Protection from what? Zee Germans?
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How should i use an array of BSTRs in some IScriptControl object?
I've tried with VT_ARRAY | VT_BSTR and it doesn't work.
rechi
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isn't that vierd! (quote from Austin Powers: Goldmember)
and yet, i need the value and all the other OLESCRIPT_ HRESULT values... there seem to be a lot of them mentioned throughout the IActiveScript documentation yet none of them exist
anyway, thanks for your searching
- Roman -
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Hello,
I've a data structure which is nested CArray structures 3 deep (years full of single years full of days full of hours).
Here is my .h code:
<br />
struct t_SchGoal {<br />
UINT Num : 21;
UINT Minutes : 11;
};<br />
<br />
struct t_SchDay {<br />
CArray <t_SchGoal, t_SchGoal&> SchGoal;<br />
UINT AvailableMinutes : 30;<br />
UINT bOverridden : 1;
};<br />
<br />
struct t_SchYear {<br />
CArray <t_SchDay, t_SchDay&> SchDay;<br />
};<br />
Then, there's the member of my document:
CArray <t_SchYear, t_SchYear&> m_SchYears;
In the CDoc init routine, I set all of the "AvailableMinutes" to 60 and I can verify this with the VC++ debugger (shows the nested m_SchYears structure tree and "AvailableMinutes" = 60).
However, when I try to access this value in code:
AvailMinutes = m_SchYears[YearIndex].SchDay[DayOfYear].AvailableMinutes;
I get nothing but 0 (instead of 60 that I KNOW is in there).
Upon trying the following code:
AvailMinutes = ((m_SchYears.GetAt(YearIndex)).SchDay.GetAt(DayOfYear)).AvailableMinutes;
The compiler complains that there is no copy constructor for my structures which is true since they're not classes. CArray has two return values for operator []--one of which is a &TYPE which is why I'm able to get away with the first line. However, it doesn't work.
I would rather not make indidual classes of each of these structures but I fear I may have to. Does anyone have any insight in to finding a way to get what I want? Or general academic comments on this situation?
Thanks! 
JennyP
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Sorry, in the last post, the CodeProject system cut out the CArray template definitions ... I'll try to copy it here again...hmm... I cannot seem to find the way to display the carrot symbols.... so I've replaced them with "[]"
<br />
struct t_SchGoal {<br />
UINT Num : 21;
UINT Minutes : 11;
};<br />
<br />
struct t_SchDay {<br />
CArray [t_SchGoal, t_SchGoal&] SchGoal;<br />
UINT AvailableMinutes : 30;<br />
UINT bOverridden : 1;
};<br />
<br />
struct t_SchYear {<br />
CArray [t_SchDay, t_SchDay&] SchDay;<br />
};<br />
JennyP
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I think, the problem comes from your t_SchDay struct. You need to define a overloaded CopyElements collection-class-helper function or an assignment operator (operator =) for it. If it is not defined, CArray uses it's default implementation of CopyElements, which performs a bitwise copy. And this does not work for the CArray member of your t_SchDay - we are running in the mysterious lands of "undefined behavior" 
--
Daniel Lohmann
http://www.losoft.de
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try using the debugger and stepping into operator[] of CArray... it might be a bug in dreaded MFC's core.
- Roman -
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also try taking out the bitfields, making them full-sized values... i always had problems with those bitfields and their quirks
- Roman -
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I have already tried getting rid of the bitfields.... same result.  Thanks, though.... I'll try stepping in to the []'s soon to see what's up.
JennyP
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Hello Jenny
I have had your problems. Apparently you cannot have a CArray of structs and a struct contains a CArray as a member. if you change all your structs to classes then there will be no problem. Just declare those classes with everything public.
Anyway, I would suggest a std::vector instead of CArray. I think this will work with structs as well
Best regards,
Alexandru Savescu
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Alexpro wrote:
I have had your problems. Apparently you cannot have a CArray of structs and a struct contains a CArray as a member. if you change all your structs to classes then there will be no problem. Just declare those classes with everything public.
Excuse me, but I can't believe that. 
There is no syntactical difference in C++ between a struct and a class. The one and only difference is, that the default visibility of a struct is public and the default visiblity of a class is private.
You are really sure you changed nothing, but made "class" where was "struct" and only added a "public:"? No additional constructors, no assignment operators no super class?
--
Daniel Lohmann
http://www.losoft.de
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Thanks everyone. I think I'll put a little extra time/care in to the code and create separate classes for each of my structs replete with data access methods with light error checking. This will also make all of my top level data access code more readable.
I don't know what vectors are or how to use them, so out of expedience, I'll make classes.
Thanks!
JennyP
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you should use vectors, they're rather simple to use:
struct MyStruct
{
int v1;
int v2;
};
std::vector<MyStruct> a;
a.push_back(MyStruct(5,6));
a.insert(a.begin() + 0,MyStruct(5,6));
a.erase(a.begin() + 1);
a[0].v1 = a[0].v2;
as you can see, vectors aren't at all complicated and will save you much time debugging a collection class manually made (those sometimes have bugs )
- Roman -
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