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Hi All,
I have had success using the new Symbol Server with WinDbg to view system symbols while debugging. How can I setup VC6 to also use the correct system symbols automatically?
D.C.R.
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I have a subclassed edit control on a propertypage, which is a page in a propertysheet. I want to get all keystrokes in that edit control's PreTranslateMessage including Tab, Ctrl+Tab, Esc, Enter etc - but, the propertysheet/page captures some of these and does other things. How can I suspend the propertysheet/page from doing this, when the focus is on the subclassed edit?
My article on a reference-counted smart pointer that supports polymorphic objects and raw pointers
modified 29-Aug-18 21:01pm.
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Your edit control should handle WM_GETDLGCODE and return DLGC_WANTALLKEYS
--Mike--
The Internet is a place where absolutely nothing happens.
-- Strong Bad
1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click!
My really out-of-date homepage
Sonork-100.19012 Acid_Helm
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I have a Dialog application that has 4 grids(which are added as variables to the class ) and has a Com Server that this applications talks to .This is a multithreaded application where the Thread function populates the grids Now I add a new Flexgrid and the following happens :
Code runs Ok in the debug and Release configurations
When I go to class wizard and add a variable to this last grid like : m_grid5.
My code crashes in the release Configuration .
When i dont add a variable but access the grid using a Pointer by doing :
CMSFlexGrid *m_grid6=(CMSFlexGrid *)this->GetDlgItem(IDC_MSFLEXGRID_FILTER2);<br />
m_grid6->SetRows(1);
The code runs fine in the release mode .
I am not able to follow what internally is happenning or conflicting . Suggestions will be helpful .
Thanks
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Hello.
I went here http://msdn.microsoft.com/library/default.asp?url=/workshop/browser/hosting/wbcustomization.asp and took this example in the "Controlling Navigation" section of this article:
case DISPID_BEFORENAVIGATE2:
{
CComBSTR url = ((*pDispParams).rgvarg)[5].pvarVal->bstrVal;
if (url == "http://www.adatum.com" || url == "http://www.adatum.com/")
{
CComPtr<iwebbrowser2> spBrowser;
CComPtr<idispatch> spDisp = ((*pDispParams).rgvarg)[6].pdispVal;
spDisp->QueryInterface(IID_IWebBrowser2, (void**)&spBrowser);
spBrowser->Stop();
CComBSTR newURL = L"http://newdomain.com/newpage.htm";
spBrowser->Navigate(newURL, NULL, NULL, NULL, NULL);
((*pDispParams).rgvarg)[0].boolVal = TRUE;
}
break;
}
The question is:
If I click the link to "http://www.adatum.com" that opens in the same window then everything works fine and browser navigates "http://newdomain.com/newpage.htm". But in the case of holding shift or using in a href target=_blank or target="some_name" (i.e. opening link in new window) it navigates to "http://www.adatum.com".
Anybody knows what can be the problem?
I'm using IE 6.0 and Win2k
Thanks
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To react on navigations when creating new browser windows you need to handle the NewWindow2 event (DISPID_NEWWINDOW2). There, you can intercept the creation of new windows and f.i. provide an IDispatch to your own browser, thus being able to handle DISPID_BEFORENAVIGATE2. There should be some examples about that on MSDN.
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I'll try to explain what I see in the debugger.
This piece of code was used in a Browser Helper Object.
1 case DISPID_BEFORENAVIGATE2:
2 {
3 CComBSTR url = ((*pDispParams).rgvarg)[5].pvarVal->bstrVal;
4 if (url == "http://www.adatum.com" || url == "http://www.adatum.com/")
5 {
6 CComPtr<iwebbrowser2> spBrowser;
7 CComPtr<idispatch> spDisp = ((*pDispParams).rgvarg)[6].pdispVal;
8 spDisp->QueryInterface(IID_IWebBrowser2, (void**)&spBrowser);
9 spBrowser->Stop();
10 CComBSTR newURL = L"http://newdomain.com/newpage.htm";
11 spBrowser->Navigate(newURL, NULL, NULL, NULL, NULL);
12 ((*pDispParams).rgvarg)[0].boolVal = TRUE;
13 }
14 break;
15 }
I'll explain what I have while debugging:
variant 1 (opening link in the same window)
DISPID_BEFORENAVIGATE fires
string 12 works fine setting pDispParams->rgvarg[0] to True
browser Navigates to http://newdomain.com/newpage.htm
variant 2 (opening link in new window):
DISPID_NEWWINDOW2 fires
I use such string to cancel Navigation:
((*pDispParams).rgvarg)[0].boolVal = TRUE;
In debugger the value of pDispParams->rgvarg[0] becomes True but nothing happens...
DISPID_BEFORENAVIGATE fires
everything works like in variant 1 except that
string 12 doesn't work setting pDispParams->rgvarg[0] to {???}
browser Navigates to http://www.adatum.com
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I found the problem but don't know how to solve it
The code I gave was not the same I used. I tried to add a header to Navigate2
Who could imagine that additional headers are the reason of the problem?
When the code is like this everything works fine (with additional header) only when link opens in
the same window:
---------------------------------------------------------------------
CComVariant vtEmpty;
VARIANT vtHeaders;
vtHeaders.vt = VT_BSTR;
vtHeaders.bstrVal = SysAllocString(L"addHeader:newHeader");
VARIANT vURL;
vURL.vt = VT_BSTR;
vURL.bstrVal = SysAllocString(L"http://newurl/newpage.htm");
spBrowser->Navigate2(&vURL,&vtEmpty,&vtEmpty,&vtEmpty,&vtHeaders);
---------------------------------------------------------------------
When the code is like this everything works fine (without additional header) both when link opens
in the same window and in a new window:
---------------------------------------------------------------------
CComVariant vtEmpty;
VARIANT vURL;
vURL.vt = VT_BSTR;
vURL.bstrVal = SysAllocString(L"http://newurl/newpage.htm");
spBrowser->Navigate2(&vURL,&vtEmpty,&vtEmpty,&vtEmpty,&vtEmpty);
---------------------------------------------------------------------
So the reason seems to be in headers. But I need to send additional header even if link opens in a
new window.
So the problem remains.
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Under MyKey, on the right panel of the registry, the entries look like:
name data
-----------------------------
Folder c:\myDir
If RegSetValueEx fails, will I see
name data
-----------------------------
Folder no data here
or
name data
-----------------------------
no entry at all
I am not totally sure from MSDN, because I guess I cant decide what the "value" is ----- name or data...
Appreciate your help,
ns
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Sometimes it would be nice to print my source code without comments. When I am in the development stage and am trying to figure out how to code something somewhat complex, I sometimes need to print out where I am, in order to fix it or complete it. e.g. a couple of nested while loops with plenty of comments in between.
Sure would be nice if there was a utility or macro I could run that would strip all comments from my source so I can print it out on a page or two versus what sometimes is a lot longer with comments in it. Currently, I cut and paste a section that I am working on into an editor and then manually remove all comment lines and sometimes some unnecessary code (for display only) such as error handling/checking routines to limit the amount of actual code I want to see.
Anyone know of such a tool?
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Hi
Is it not allowed to start a thread in CDialog?Why isnt the below code working?(where IDC_GRAPH_FRAME is a picture control of Frame type)Please enlighten.
Thanks.
UINT PlotAttenuationThread(LPVOID pParam)<br />
{<br />
CWnd* gFrame = (CWnd*)GetDlgItem(IDC_GRAPH_FRAME);<br />
CDC* pDC = gFrame->GetDC();<br />
ReleaseDC(pDC);<br />
return 0;<br />
}<br />
<br />
<br />
BOOL CGrapDlg::OnInitDialog() <br />
{<br />
CDialog::OnInitDialog();<br />
<br />
AfxBeginThread(PlotAttenuationThread,this);<br />
return TRUE;
}
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raner wrote:
Why isnt the below code working?
What do you mean? Does it not compile, does it not call your thread function, what?
Regards,
Alvaro
All you need in this life is ignorance and confidence, and then success is sure. -- Mark Twain
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There is no problem starting a thread in OnInitDialog(), you just have to be very careful when using MFC objects (particularly objects derived from CWnd) in multiple threads.
Anyway, i suspect that here your code isn't compiling (i assume that's what you mean when you said that it doesn't work) because GetDlgItem() doesn't have enough parameters. Since the thread function is a global function, and not a member of CGrapDlg, it does not have access to the member functions of CGrapDlg (and CWnd from where it is derived). This means that when you call GetDlgItem() here, it is actually calling the SDK version, not the CWnd version. The SDK version of GetDlgItem() takes two parameters: the HWND of the dialog box, and then ID of the control. To get around this, you could cast the pParam parameter to a CGrapDlg, and then call the GetDlgItem() member function.
However, there are two issues here:
1) This uses CWnd-derived MFC objects in multiple threads, which is error prone. You could get around this by passing in the HWND instead, and calling the SDK directly.
2) By the sound of the thread function name, you are planning to do some drawing within this thread. In general, this is not recommended, as the dialog will also be painting itself (by handling WM_PAINT and WM_ERASEBACKGROUND), and so it is very likely that anything you draw in your thread will never be seen by the user.
Dave
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regarding issue 2...i need some calculations to know what to draw and i thought if these had to be performed each time WM_PAINT is sent, it'll take a long time. That's why i placed the functions under OnInitDialog().
But after thinking through what you pointed out to me, maybe i should do the calculations in OnInitDialog() and the final display in OnPaint()?
thanks alot...i didnt know a thread is a global function before.;P
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Use this code:
BOOL CGrapDlg::OnInitDialog()
{
CDialog::OnInitDialog();
AfxBeginThread(PlotAttenuationThread, this);
return TRUE;
}
UINT PlotAttenuationThread(LPVOID pParam)
{
CGraphDlg* pDlg=(CGraphDlg*) pParam;
CWnd* gFrame = (CWnd*)pDlg->GetDlgItem(IDC_GRAPH_FRAME);
CDC* pDC = gFrame->GetDC();
ReleaseDC(pDC);
return 0;
}
A. Riazi
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One problem you should be seeing is that the thread function is not a member function of CGrapDlg so you can't call GetDlgItem.
Also what Dave has posted regarding the use of MFC objects accross threads is a problem that cannot be ignored. There are Technical Notes on MSDN regarding this problem.
"No matter where you go, there your are..." - Buckaoo Banzi
<pete/>
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How change a color of the cell and color of the text in Excel table via OBDC.
CDatabase database;
...
database.OpenEx(sSql,CDatabase::noOdbcDialog)
...
sSql = "CREATE TABLE Station (Train CHAR,Times CHAR,Way NUMBER,Comment CHAR)";
database.ExecuteSQL(sSql);
...
sSql.Format("INSERT INTO Station (Train,Times,Way,Comment) VALUES ('%s','%s',%d,'%s')",sTrain,sTime,iWay,sComment);
database.ExecuteSQL(sSql);
I want that color of this record was red.
// Sorry for my Englsih
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Maybe with ADOX? otherwise, why not use the Excel COM objects?
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It is good. But can you write a simple example how to use it? Or tell me how to do it? Or where can i read this in the internet?
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Hi,
I remember seeing once an articale that showed how you can send email
from a c++ program.
Any help will be appreciated.
Tahnks
Shay
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