Detecting drag on a window title bar - C / C++ / MFC Discussion Boards

Dock one CDialog into one other during runtime…

anderslundsgard22-Jun-04 0:37

22-Jun-04 0:37

Is it possible to make my popup CDilalog into another Cdialog (making it as a child) I’ve figured of the CWnd::ModifyStyle func but it return false when I for e.g. run:

m_dialog.ModifyStyle(ModifyStyle( 0 ,WS_CHILD );

Any suggestions how I could tackle the problem.
I’ve searched for articles round the net but no success…

Thanks

_____________________________

...and justice for all

APe

Re: Dock one CDialog into one other during runtime…

anderslundsgard22-Jun-04 0:38

anderslundsgard

22-Jun-04 0:38

d00_ape wrote:
m_dialog.ModifyStyle(ModifyStyle( 0 ,WS_CHILD );

Of course:

m_dialog.ModifyStyle( 0 ,WS_CHILD );

Blush | :O

_____________________________

...and justice for all

APe

How to copy directory from one drives to other

ThatsAlok22-Jun-04 0:07

ThatsAlok

22-Jun-04 0:07

helloo all fellow programmer
i want to know loginc behind or any api behind copying one directory from one drives to other.

thanks in advance

I Think It will Work
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

Re: How to copy directory from one drives to other

David Crow22-Jun-04 2:36

David Crow

22-Jun-04 2:36

Have you looked at SHFileOperation()?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

There is no source code available for the current location.

Øivind22-Jun-04 0:05

Øivind

22-Jun-04 0:05

HI!

When I'm debugging and stepping through my code, in certain places I get the message "There is no source code available for the current location.", even though it is my own code, and the files are in my project... Anyone know how to fix this?

Search installed modem

El'Cachubrey21-Jun-04 23:52

El'Cachubrey

21-Jun-04 23:52

Hi how i can detect modem (name of one)which installed in my system,programatically?????

Thank.

Re: Search installed modem

Branislav22-Jun-04 1:00

Branislav

22-Jun-04 1:00

http://www.codeguru.com/Cpp/I-N/network/dial-upnetworking/article.php/c2465/

Detecting drag on a window title bar

Anonymous21-Jun-04 23:17

Anonymous

21-Jun-04 23:17

Hi!

I've have overridden CWnd::OnNcLButtonUp() to detect when I click on the title bar of my window. What I need now is to detect if I have released the window. This is so I click on my title bar and drag window to another position. How do I know when the drag has finished?

I have tried CWnd::OnNcLButtonUp() but it doesn't help.

Microsoft recommends C++ for .NET 2.0 and Longhorn

Kevin McFarlane21-Jun-04 22:59

Kevin McFarlane

21-Jun-04 22:59

See Managed C++ thread http://www.codeproject.com/script/comments/forums.asp?forumid=3785&select=857536#xx857536xx[^]

Kevin

Re: Microsoft recommends C++ for .NET 2.0 and Longhorn

Antony M Kancidrowski22-Jun-04 3:44

Antony M Kancidrowski

22-Jun-04 3:44

Doesn't this just state the obvious. If you are writing native code then C++ will be faster!?! Given the speed of modern machines the majority of applications speed is not noticably different, from a user point of view, no matter what language they are written in.

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fuity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

Re: Microsoft recommends C++ for .NET 2.0 and Longhorn

Kevin McFarlane22-Jun-04 3:57

Kevin McFarlane

22-Jun-04 3:57

Antony M Kancidrowski wrote:
Doesn't this just state the obvious. If you are writing native code then C++ will be faster!?!

The impression I get from his statement is that for .NET tasks C++ is preferred too. A lot (most?) of the native code in Longhorn is .NET.

Kevin

Ihow an item of CTreeCtrl store two string?

Member 62183621-Jun-04 22:49

Member 621836

21-Jun-04 22:49

I use SetItemText to store title,that's ok.but SetItemData store URL have some question.why result is often wrong?
how to use SetItemData?
very very thx poor english

insert an item to a tree

code:--------------------------------------------------------------------------------

for (int i = 0;...; i++)
{
....
htiChild = m_etc.InsertItem(m_strNewDir, hti, TVI_LAST);

CString strItemData= "www.aaa.com";
lpszItemData = new TCHAR[strItemData.GetLength()+1];
lpszItemData = (LPCTSTR)strItemData;
m_etc.SetItemData(htiChild, (DWORD)lpszItemData);
}
--------------------------------------------------------------------------------

save tree to a file

code:--------------------------------------------------------------------------------

for(..)
{LPCTSTR pItemData;
strTitle = GetItemText(hti);
pItemData = (LPCTSTR)GetItemData(hti);
CString strItemData(pItemData);
str = strTitle + strItemData;

save str
}
--------------------------------------------------------------------------------

lLoad the file to a tree

code:--------------------------------------------------------------------------------

for (iCount = 0; ...iCount++)
{
strItemText = strItem.Left(n);
lpszItemText = strItemText.GetBuffer();
strItemText.ReleaseBuffer();

strItemData = strItem.Right(strItem.GetLength() - n - 5);
lpszItemData = new TCHAR[strItemData.GetLength()+1];
lpszItemData = strItemData;

InsertItem(lpszItem, hParent, hInsertAfter);
SetItemData(htiSon, (DWORD)lpszItemData);
......
}

Re: Ihow an item of CTreeCtrl store two string?

palbano22-Jun-04 5:59

palbano

22-Jun-04 5:59

You need to study pointers a little more

lpszItemData = new TCHAR[strItemData.GetLength()+1]; 
lpszItemData = (LPCTSTR)strItemData;

That's not going to work. You must copy the memory from the source string to the target string not just assign the pointer. Also you have a memory leak since you lost the memory address that was allocated with "new".

Try this to start with http://www.codeproject.com/cpp/pointers.asp[^]

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Greek leters and subscripts

André Dewispelaere21-Jun-04 22:44

André Dewispelaere

21-Jun-04 22:44

I like to use greek letters and subcript indexes for mathematical expressions and formulas in dialog forms and output strings of my Visual C++ MFC programs. Can some one explain how to do that.
Thanks

Re: Greek leters and subscripts

Johan Rosengren21-Jun-04 23:46

Johan Rosengren

21-Jun-04 23:46

You do this by selecting appropriate fonts when outputting. For editable text, you will want to use the Rich edit control. For captions, you'll need CStatics with font-setting capabilities.

For both types of controls, you'll find a multitude of articles on this site.

Very simple C++ question - include files

Indrawati21-Jun-04 22:36

Indrawati

21-Jun-04 22:36

Hi I have a simple question on where to put #include statements. Should I put them in .h file, or in .cpp file? For example, I have a class A in A.h and A.cpp. Class A uses STL vector, so is it better for me to #include <vector> in A.h or A.cpp? ANd how about using keyword? Should I write using std::vector in A.h or A.cpp?

Thanks!

Re: Very simple C++ question - include files

V.21-Jun-04 23:10

21-Jun-04 23:10

normally you include A.h in A.cpp
if you need to declare eg a vector in your .h file you need to use the #include here, if not, you still can put it here (because you include your A.h in your .cpp) or put it in your .cpp.

I'm not sure of the reason of putting includes in the cpp files, but I think it's because of inheretence of other files from your .h.

hope this helps.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: Very simple C++ question - include files

Bob Stanneveld22-Jun-04 1:48

Bob Stanneveld

22-Jun-04 1:48

Indrawati wrote:
how about using keyword? Should I write using std::vector in A.h or A.cpp?

You should never use the using keyword in your .h files. This way, you pollute the global namespace. It may not result in disaster for using std::vector, but you never know...
If you really want to use the using keyword, put it in the .cpp file.

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: Very simple C++ question - include files

Kevin McFarlane22-Jun-04 4:05

Kevin McFarlane

22-Jun-04 4:05

The #includes can be in either. But a common approach is to put them in the .h.

So, in A.h

#include <vector>

// Use namespace qualifier std::
void foo(const std::vector& vec);

In the A.cpp

#include "A.h"

using namespace std;

void A::foo(const vector& vec)
{
}

But never put using namespace std;

in the header.

Kevin

Re: Very simple C++ question - include files

Jeremy Falcon22-Jun-04 5:45

Jeremy Falcon

22-Jun-04 5:45

If whatever you need to include also needs to be include in another file to work with your class (say for instance, one member returns a vector), then put the include in the header file.

Also, if your class (or whatever) encapsulates all dependencies then do not put the includes in the header file.

Jeremy Falcon

Re: Very simple C++ question - include files

gamitech22-Jun-04 13:10

gamitech

22-Jun-04 13:10

If the cpp uses the functions inside the h files put in the cpp otherwise put them somewhere where the functions could be used by the program.
It is advisable that you make a .h file that stores all the .h files you need.
for ex:
storing_h_files.cpp should be loking like this:
#include storing_h_files.h

storing_h_files.h should be loking like this:
#ifndef storing_h_files
#define storing_h_files

#include <afxwin.h>
#include <afxext.h>
#include <afxdisp.h>
#include <afxdtctl.h>
#include <afxcmn.h>
.
.
.
.
.
.
.
#endif

gabby

Display My Computer folder in a CFileDialog

Filomela21-Jun-04 22:23

Filomela

21-Jun-04 22:23

How can I display My Computer folder in a CFileDialog? I tried with SHGetSpecialFolderPath , but the path is empty, i believe because Ny Computer is a vitual folder, not a system one or a real one.Thank you.

Re: Display My Computer folder in a CFileDialog

V.22-Jun-04 2:56

22-Jun-04 2:56

you can set a default directory if your CFileDialog opens.
look into the ONF structure or something.
Don't know if it will work with Virtual Folders though.

Good luck.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: Display My Computer folder in a CFileDialog

David Crow22-Jun-04 3:00

David Crow

22-Jun-04 3:00

Only some CSIDLs are supported with SHGetFolderPath(), and CSIDL_DRIVES is not one of them. You can, however, use CSIDL_DRIVES in conjunction with SHBrowseForFolder().

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Can't open vcproj files created for C++ projects

naamazur21-Jun-04 22:10

naamazur

21-Jun-04 22:10

Hi When I try to open .vcprj files which were created by converting c++ prjects I get this error: "The application for project '<project name="">.vcproj' is not installed. Make sure the application for the project type (.vcproj) is installed"
I have been expermenting with addins for the last couple of days, and handled the registry myself (for cleaning addin leftovers) so I probably erased one tto many registry entries.
Could you help me restore the right entry?

Thx
Naama

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