C / C++ / MFC Discussion Boards

Re: Visual C++ 6.00 and Visual Source Safe

Anthony_Yio15-Jan-04 15:02

15-Jan-04 15:02

Change your working directory in source safe and delete the *.vss at your side (not in the server)

Open project from source safe and not by clicking the *.dsw.

Sonork 100.41263:Anthony_Yio

problem building with .net 2003

Binayak15-Jan-04 6:45

Binayak

15-Jan-04 6:45

Hi,

I can build my program (atl ) using visual 6.0. But if I try to build with .net2003 I get the following errors. I think it has something to do with the library file settings. Please advise.

HelloHierarchy.obj : error LNK2019: unresolved external symbol "public: class std::vector<class svioitem="" *,class="" std::allocator<class="" *=""> >::iterator __thiscall SvIoMessageItemArray::end(void)" (?end@SvIoMessageItemArray@@QAE?AViterator@?$vector@PAVSvIoItem@@V?$allocator@PAVSvIoItem@@@std@@@std@@XZ) referenced in function "public: virtual enum tagMSGSUCCESS __thiscall HelloPollMessage::Send(class SvIoTopic *,class SvIoHierarchy *)" (?Send@HelloPollMessage@@UAE? AW4tagMSGSUCCESS@@PAVSvIoTopic@@PAVSvIoHierarchy@@
@Z)

ServerBase.lib(IosItem.obj) : error LNK2001: unresolved external symbol "__declspec(dllimport) private: void __thiscall std::basic_string<unsigned short,struct="" std::char_traits<unsigned="" short="">,class std::allocator<unsigned short=""> >::_Tidy(bool)" (__imp_?_Tidy@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@AAEX_N@Z)

Re: problem building with .net 2003

Antti Keskinen15-Jan-04 8:42

Antti Keskinen

15-Jan-04 8:42

You have some sort of a header file included that declares the function/structure specified in the first error. However, you are not linking against a suitable library. Check your project settings and the function that causes the error (HelloPollMessage::Send). When you find the missing function, see it's reference for the library to link with.

The second error if of similar sorts, however, it just says that it cannot find the definition of 'basic_string' class. Make sure you are linking against the standard C/C++ library files.

Of course, you could check the VS .Net help files for the new features of ATL version 7 to see if some note there would explain your problem. The final option is to copy the ATL library files from VC++ 6.0 and link against them instead of the version 7 ones.

-Antti Keskinen

----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.

How to drive WORD2000 from a thread

tlemetay15-Jan-04 6:43

tlemetay

15-Jan-04 6:43

Hi,
Coding my application with Visual C++, when i try to open WORD2000 application from a thread, an error occures.
Please, help me with an example explaining how to manage this problem.

Thanks

Re: How to drive WORD2000 from a thread

David Crow15-Jan-04 7:29

David Crow

15-Jan-04 7:29

tlemetay wrote:
...an error occures.

And that error would be?

Are you using CreateProcess(), or OLE Automation?

A rich person is not the one who has the most, but the one that needs the least.

MDI Current Document Position

vancouver77715-Jan-04 6:42

vancouver777

15-Jan-04 6:42

I just figured out how to walk through each document like the below
when you open multiple project in MDI application

POSITION DocPos = pDocTemp -> GetFirstDocPosition();
while( DocPos != NULL )
{
CMyDoc * pDoc = ( CMyDoc * )pDocTemp -> GetNextDoc( DocPos );
}
Is there any way to know the position of current document (
which document is currently active)?

Thanks.
Shin

Re: MDI Current Document Position

Anthony_Yio15-Jan-04 14:55

Anthony_Yio

15-Jan-04 14:55

CFrameWnd::GetActiveView

Sonork 100.41263:Anthony_Yio

Re: MDI Current Document Position

vancouver77716-Jan-04 11:30

vancouver777

16-Jan-04 11:30

Thanks Anthony,
That did it.

CBS_OWNERDRAWVARIABLE and SetWindowLong

BadJerry15-Jan-04 6:05

BadJerry

15-Jan-04 6:05

Hi,

I am trying to write a control derived from CComboBox. I want to make sure that the owner draw flag is set even if it has not been done in the resources.
So in PreSubclassWindow, I do this

<br />
void CMyComboBox::PreSubclassWindow() <br />
{<br />
   CComboBox::PreSubclassWindow();<br />
<br />
   UINT nStyle = GetStyle();<br />
   if ( !(nStyle & CBS_OWNERDRAWVARIABLE) || !(nStyle & CBS_HASSTRINGS) )<br />
      SetWindowLong(m_hWnd,GWL_STYLE,nStyle | CBS_OWNERDRAWVARIABLE| CBS_HASSTRINGS);<br />
}<br />

This does not work... DrawItem does not get called. Any idea?

Thanks in advance

Re: CBS_OWNERDRAWVARIABLE and SetWindowLong

LunaticFringe15-Jan-04 6:27

LunaticFringe

15-Jan-04 6:27

I believe that you have to specify that the control is owner-drawn before it is created. Subclassing a control in this manner, the window is created before before PreSublassWindow is called, so your modification of the window style has no effect.

Re: CBS_OWNERDRAWVARIABLE and SetWindowLong

BadJerry15-Jan-04 6:46

BadJerry

15-Jan-04 6:46

Thanks for your reply.
Any idea of what I should override to be able to do this?

Re: CBS_OWNERDRAWVARIABLE and SetWindowLong

LunaticFringe15-Jan-04 7:02

LunaticFringe

15-Jan-04 7:02

Yeah - check the property sheet checkbox.

Big Grin | :-D

There are a few approaches. I think the slickest (especially in VS.NET 2003, as opposed to VS6) is the use of the 'Custom Control' toolbox item.

Check out the MFC sample 'CTRLTEST', in particular the file (and documentation regarding) paredit2.cpp and .h - the parsed edit control w/ an 'Exported' class for use inthe dialog editor. It'll take a while to understand how it works, but it's a neat trick to know.

How to fill the fields of IE's web page from within VB or C++ ?

John Thomas15-Jan-04 6:03

John Thomas

15-Jan-04 6:03

Does anybody know how to fill the fields of IE's web page
from within VB or C++ ? What if the page is secure? Of
course, there is no problem to fill all the fields by
hand. The question is how to do it automatically, by
running .exe or .dll.

Re: How to fill the fields of IE's web page from within VB or C++ ?

Anthony_Yio15-Jan-04 14:59

Anthony_Yio

15-Jan-04 14:59

It is depends on wheither your form it to be submited by POST , by COOKIES or by QUERYSTRING.

If your web page form is using querystring, you just ammend the URL

like

http://www.codeproject.com/script/comments/user_reply.asp?forumid=myIDblahlblah

Check out some ASP/JSP/PHP/Perl tutorial to understand the concept

Sonork 100.41263:Anthony_Yio

port communication using mfc

parthmankad15-Jan-04 5:47

parthmankad

15-Jan-04 5:47

how to communciate with a serial or com or usb port using mfc

Re: port communication using mfc

Diddy15-Jan-04 6:02

Diddy

15-Jan-04 6:02

You don't

You use ::CreateFile and give it a name such as "COM3:" If you want to talk to a USB port you have to make sure your USB device offeres a device in the serial port (or modem) class in its ACL to get a COM port assigned to it

You probably can use CFile to do the same, but ive never tried.

There are numerious serial port wrapper classes on CP and www.codeguru.com

Displaying data from oracle in combo box and edit control

parthmankad15-Jan-04 5:43

parthmankad

15-Jan-04 5:43

how to display data from an oracle table into combo box and edit control.

MFC

parthmankad15-Jan-04 5:37

parthmankad

15-Jan-04 5:37

i have a dialog box where i am having a combo-box control and two edit controls.i want to insert the value of the combo box which i select and also of the two d\edit controls into a table in oracle database when i click the ok button.i want to use the CDatabase.ExecuteSqlQuery command.how should i write the insert statement.

Re: MFC

David Crow15-Jan-04 6:06

David Crow

15-Jan-04 6:06

m_combo.GetWindowText(strComboText);
m_edit1.GetWindowText(strEdit1Text);
m_edit2.GetWindowText(strEdit2Text);
 
// you'll need to supply the name of your table, and the columns that are being updated
strSQLQuery.Format("INSERT INTO <table> (column list) VALUES ('%s', '%s', '%s')", 
    strComboText, strEdit1Text, strEdit2Text);
 
CDatabast.ExecuteSqlQuery(strSQLQuery);

A rich person is not the one who has the most, but the one that needs the least.

Grid lines

nazir_m15-Jan-04 5:17

nazir_m

15-Jan-04 5:17

How can I draw a line with a style that has dots smaller and and more closely placed than PS_DOT style in CPen? I would like to draw like the one drawn by the function DrawFocusRect, but would like to be able to change the color.

Thanks

How to intercept control-N in CDHTMLDialog app?

Jim Howard15-Jan-04 5:03

Jim Howard

15-Jan-04 5:03

I'm intercepting all the alt keys in my CDHtmlDialog derived dialog
application, but I can't seem to intercept the control-N "new browser" key
combination. Unlike CHtmlView, CDHtmlDialog doesn't have an OnNewWindow2
event handler.

I'm using C++ in Visual Studio .Net 2003.

I should know how to do this, but I don't.

Hints or pointers to a faq are very welcome.

Thanks,

Jim Howard

sample of uninstallation

includeh1015-Jan-04 4:46

includeh10

15-Jan-04 4:46

hi,
i am developing an install/uninstall program, but i have Q about remove items from Start Menu.

following lines can easily add items to Start menu

//=================================================
CString csBuf= "[progman.groups]\r\n"
"groupX=_g0\r\n"
"[groupX]\r\n"
"\"R0\",\"c:\\_temp\\abc.txt\"\r\n"
"\"R1\",\"c:\\_temp\\efg.txt\"\r\n"
"\"c:\\_temp\"\r\n";

const CString csIni="C:\\WINDOWS\\setup.ini";
int fh=_lcreat(csIni,0);

if(fh!=-1)
{
_lwrite(fh,csBuf,csBuf.GetLength());
_lclose(fh);
WinExec("grpconv -o",SW_SHOW);
}

//=========================================

Q:
1. how to delete (uninstall) items from Start menu programmatically (any way)?
2. is code above good for add items to Start menu? what is best or better method?
3. any recommend for install/uninstall (espcially-uninstall) samples (links etc) - samples in msdn look no good.

thanks

includeh10

Re: sample of uninstallation

l a u r e n15-Jan-04 6:00

l a u r e n

15-Jan-04 6:00