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In that case ... if you're using CTreeCtrl, you need to call GetParentItem and pass it the handle of the item (HITEM) you want to know the parent of. It will return the item handle of the parent item, or NULL if it doesn't exist.
If you are using raw Win32, you need to use Treeview_GetParentItem and pass it the window handle (HWND) of the tree control and the item handle of the item you want to know the parent of. It will also return the item handle of the parent item, or NULL if it doesn't exist.
Hope this helps 
Derek Lakin.
Salamander Software Ltd.
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I am wondering what class to use to have a toolbar appear when a child window is created in a MFC MDI application. I want it so that the main window contains a child frame and a floating toolbar. Thanks.
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Hi
I just wanted to create a dll that works together with the Internet Explorer (the so called BHO-Browser Helper Object)
I created the file as described here: http://www.microsoft.com/mind/defaulttop.asp?page=/mind/0598/browhelp.htm&nav=/mind/0598/inthisissuecolumns0598.htm
In Debug mode, the dll compiles quite fine, but if I choose to compile in Release-mode (ReleaseMinSize or ReleaseMinDependency), I get one linker error:
unresolved external symbol _main (translated from german)
why the hell does my dll not compile, although it does in debug mode? 
regards
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remove the _ATL_MIN_CRT preprocessor macro from your release projct.
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it works
thanks a lot
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Look at Q165076 in the knowledge base. You may need to remove the _ATL_MIN_CRT preprocessor define if it is present in you release configuration. This is often the cause of unresolved external errors in ATL .dll's. You will find this in the Project Settings dialog, C/C++ tab, the preprocessor selection in the dropdown.
Hope that helps,
Aaron
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When I add a menu on a Dialog Box....the hot keys of menu did not work although i set the caption of menu item right such as "&Edit...\tCtrl+E". When I do the same work in SDI Appliaction...In single document Application it works fine....but when i made Dialog based application and design menu manually...here it not works.....
I have checked the .rc file in SDI and here class wizard
added more lines for Hot Keys like
IDR_MAINFRAME ACCELERATORS PRELOAD MOVEABLE PURE
BEGIN
"N", ID_FILE_NEW, VIRTKEY, CONTROL
END
I added these lines in .rc of Dialog application but all in vain....any help
Have a nice wishes for Helper
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You'll have to override PreTranslateMessage in CYourDlg. Inside the function, call ::TranslateAccelerator.
BOOL CYourDlg::PreTranslateMessage(MSG* pMsg)
{
if (::TranslateAccelerator(m_hWnd, m_hAccelTable, pMsg))
{
return TRUE;
}
return CDialog::PreTranslateMessage(pMsg);
}
Init m_hAccelTable in OnInitDialog - call LoadAccelerators.
Tomasz Sowinski -- http://www.shooltz.com
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HACCEL LoadAccelerators(
HINSTANCE hInstance, // handle to module
LPCTSTR lpTableName // accelerator table name
);
the prototype of LoadAccelerators is like
how i can get lpTableName value....I dont know what to pass in 2nd parametre of function...Thanks foe early help.
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HACCEL LoadAccelerators(
HINSTANCE hInstance, // handle to module
LPCTSTR lpTableName // accelerator table name
);
the prototype of LoadAccelerators is like
how i can get lpTableName value....I dont know what to pass in 2nd parametre of function...Thanks foe early help. if u have any chat contact...i want to chat with u ...thanks.
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Chief ....the problem has been solved.....thanks for your
help.
"VC is an incubus and to tame this monster experience is a mandatory Field."
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Hi,
i just want to know.
Whats your way to look into stl-container.
For example a stl::list that contains structs.
Thanx
Olivier
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I am interested in understanding how to change the capture resolution of a webcam without using the property pages (i.e., dialog boxes). I want to be able to set this in my program independently of the dialog boxes. Does anyone know how to do this? I am using the DirectShow interface for capturing. Any help would be appreciated.
Thanks,
John
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hello all,
could anyone tell me of a possible way to get a CBitmap/HBITMAP from imagelist (CImageList/HIMAGELIST)
best regards,
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hi
what can be wrong in my project when i can't start class wizard?
menu item is disabled, ctrl-w beeps only, there is no .clw file
deleting all except .dsp,.cpp and .h and rebuild not helped
it is dll project without resources (.rc)
it contains general cresizabledialog and similar classes only
thanks
t!
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solution at
http://www.codeguru.com/cgi-bin/bbs/wt/showpost.pl?Board=vc&Number=297562&page=0&view=collapsed&sb=5
t!
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Hi,
I am developing activeX control in VC++.
My control is built with usage of two other OCX files so I pack three OCX files and INF file in one single CAB file.
It is being placed on the web page with CODEBASE tag and class id of my control.
It works fine but I need to get USER_LOGON to verify user's permissions to access database (this is INTRANET application)
to get user login I am using VBScript:
<%
full_user_id = Request.ServerVariables ("LOGON_USER")
Response.Write full_user_id
i=InStrRev(full_user_id,"\",-1,vbTextCompare)
if i>0 then
user_login = Right(full_user_id,len(full_user_id)-i)
else
user_login = full_user_id
end if
%>
and i get the proper string in 'user_login'
the question is - how can I pass this user_login variable to my C++ code ?
i would guess by setting :
<param name="web_user_name" value="<%" response.write="" user_login="" %="" />>
Am I on the right track ? Does anyone know how to pass USER_LOGON variable from the html page to activex control's code (VC++) ?
thank you
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You could set a property in your ActiveX and use JavaScript or VBScript code to assign it at the HTML side, but it isn't a good way to do that.
This is my advice!...
In the HTML page you could use the PARAM tag of your ActiveX like this.
<object id="YourActiveX" classid="CLSID:11111111-2222-3333-4444-555555555555" viewastext="">
<param name="USER_LOGON" value="user_login" />
...
At your VC++ ActiveX code, all you have to do is to create an internal member variable, for example "CString m_sUserLogin"
In the method,
void DoPropExchange(CPropExchange* pPX) {
// ...
// all you have to do is to append the next line
PX_String(pPX, _T("USER_LOGON"),m_sUserLogin, _T(""));
}
Ok, that's it!
I hope it solves your problem.
Ricardo Beja
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I want to create an Add-In for the Visual C++ IDE.
My Add-In needs to create and open a window, a window like like that which displays the code of a file. I need this window to display a graph.
Anybody got any ideas?
Take no prisoners
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I have a CTreeView and a member m_TreeCtrl which is of CTreeCtrl type.
Everytime I use m_TreeCtrl.DeleteItem() to remove an item from the tree, all of the items will be collapsed automatically!!!
Have any of you met this problem? How could I solve this problem?
Thanx in advance.
Alex Dong
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i sent you this mail:
just idea:
haven't you TVS_SINGLEEXPAND?
t!
and now it returned me:
This is the Postfix program at host mta1.etang.com.
I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.
For further assistance, please contact <postmaster@etang.com>
If you do so, please include this problem report. You can
delete your own text from the message returned below.
The Postfix program
ÄúşĂŁş
±§Ç¸µÄ֪ͨÄúŁ¬ÄúµÄÓĘĽţÎŢ·¨Í¶µÝµ˝ÄżµÄµŘÖ·Ł¬
ÇëĽě˛éÄúµÄÓĘĽţµŘÖ·ĘÇ·ńŐýČ·Ł¬»ňÓëÎŇĂǵĹÜŔíÔ±ÁŞĎµŁşpostmaster@etang.com
ллŁˇ
<ltmail@bpme.com>: Name service error for domain bpme.com: Host found but no
data record of requested type
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No, I haven't set the TVS_SINGLEEXPAND. Here is the code:
if (!m_TreeCtrl.Create( WS_VISIBLE | WS_CHILD |
TVS_HASBUTTONS | // Adds a button to the left of each parent item.
TVS_HASLINES | // Has lines linking child items
// to their corresponding parent items.
TVS_LINESATROOT | // Has lines linking child items to
// the root of the hierarchy.
TVS_EDITLABELS | // Allows users to edit the labels of tree view items.
TVS_SHOWSELALWAYS,// Causes a selected item to remain selected when
// the tree-view control loses focus.
rc,
this,
0x1005 ) )
Thank you!
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Hi,
I am new to MFC and work on a physical simulation application. I am a bit insecure on how to build up the program and would be thankful for any advise.
The simulation shall be updated as often as possible. The update of the simulation then affects the viewing data (vertices and polygons etc) displayed using OpenGL. The framerate of the viewupdate shall be fixed to around 12/sek.
1.Where is best, most natural, to put the simulationupdate-call? Is it in a CWinApp derived class´s Idle-Event-handler? In that case, how do I get a pointer to the CDocument-derived class that holds the simulation-data?
2.Where is best to put the view-update-call, i.e the call that updates the viewing data and then redraws the display-window? Is it in a timer-event of a CView derived class?
Thanks/JoNy
JoNy
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The simulation shall be updated as often as possible.
This leaves only one option: put the simultation-update code into separate worker thread.
The framerate of the viewupdate shall be fixed to around 12/sek.
Isn't it contradictory with previous requirement? I mean, if you're going to display 12 frames per second, why do you need maximum speed in the data-update code?
Tomasz Sowinski -- http://www.shooltz.com
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