C / C++ / MFC Discussion Boards

Re: problem in code running on msvs2008 c++ while same logic runs fine on turbo c++ 3.0

ashjas8-Dec-07 23:33

8-Dec-07 23:33

how to post codes on this forum...my code is converting into html tags...
please look for this question on this link instead...

http://groups.google.com/group/comp.lang.c++/browse_thread/thread/dddfd4d4b8098a4b#ce1679dc10ec66c0

thanks..

Re: problem in code running on msvs2008 c++ while same logic runs fine on turbo c++ 3.0

normanS9-Dec-07 0:53

normanS

9-Dec-07 0:53

After you have written your question, select the code then click on the CODE label, below the Text entry window.

This causes the selected text to be treated as code.

Re: problem in code running on msvs2008 c++ while same logic runs fine on turbo c++ 3.0

markkuk9-Dec-07 2:18

markkuk

9-Dec-07 2:18

Your code has two major problems: it tries to modify a literal string ("Abcdefghijk") and it will overwrite the area allocated for main if rep is longer than sub. Try this instead:

std::string& strrep(std::string& main, const char* sub, const char* rep) {
    if(sub && rep) {
        std::string::size_type idx = main.find(sub);
        if(idx != std::string::npos) {
            return main.replace(idx, strlen(sub), rep);
        }
    }
    return main;
}

Re: problem in code running on msvs2008 c++ while same logic runs fine on turbo c++ 3.0

ashjas9-Dec-07 4:15

ashjas

9-Dec-07 4:15

Thanks for replying markkuk,

Firstly i dont want to use any of the inbuilt functions.

secondly why cant i increase the memory space for the main char pointer if the rep>sub,as i think that pointers do give a programmer this ability.. or should i allocate a new memory space using new operator and then carry out the operations on main pointer??
and why this can be done without errors on turbo c++ 3.0 and not in msvs2008 c++??

thanks for showing interest and helping.

find error

keyto8-Dec-07 20:08

keyto

8-Dec-07 20:08

If I try to add some thing in my sample project the error displays like this:-> c:\documents and settings\administrator\desktop\mitumori\mitu\jpeg.h(21) : error C2370: 'kJFIF' : redefinition; different storage class

Re: find error

David Crow14-Mar-08 6:00

David Crow

14-Mar-08 6:00

keyto wrote:
error C2370: 'kJFIF' : redefinition; different storage class

See here.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

DialogBox question

KellyR8-Dec-07 8:47

KellyR

8-Dec-07 8:47

Hi, if I start up a new dialog using DialogBox, how do I get access to its message pump (GetMessage, PeekMessage, or whatever it uses)? This is without MFC.

The problem is that I have a dialog that I load up that has a lot of other controls on it, and I need to access the messages for those controls specifically (like catching a WM_MOUSEMOVE on a listbox, etc).

Thanks!

Re: DialogBox question

Mark Salsbery8-Dec-07 9:25

Mark Salsbery

8-Dec-07 9:25

KellyR wrote:
I have a dialog that I load up that has a lot of other controls on it, and I need to access the messages for those controls

You can subclass the controls you want to intercept messages for:

Subclassing Controls[^]

This can be done in your dialogproc in response to WM_INITDIALOG.

Mark

Mark Salsbery
Microsoft MVP - Visual C++

Java | [Coffee]

Re: DialogBox question

KellyR8-Dec-07 9:37

KellyR

8-Dec-07 9:37

Coolness, thanks!

GDI+ trailing spaces and newline

bob169728-Dec-07 5:59

bob16972

8-Dec-07 5:59

I found the default wrapping behavior by Graphics::DrawString to be incompatible with the wrapping behavior of some legacy apps and it was impossible to achieve some other required functionality without resorting to handling the wrapping manually.

With that said, I am having a rough time with the fact that GDI+ insists on measuring the '\n' character during output. This makes paragraph output, centered aligned, come out a bit off. I can remove the StringFormatFlagsMeasureTrailingSpaces flag but then any trailing spaces do not get measured. This is a word processor so text selection measurements must match the text output for text selection feedback.

Is there a way, without drawing each line individually, to somehow get GDI+ to ignore the '\n' character in measurements and when calculating center alignment but to still wrap on them? Is there another "newline" character that gets measured with a zero width?

Window Styles

Giorgi Dalakishvili8-Dec-07 4:32

Giorgi Dalakishvili

8-Dec-07 4:32

Hello,
This article here: http://www.codeproject.com/KB/miscctrl/AppControl.aspx shows how you can host external window on your application if you have handle to the window. It uses this piece of code to host the window:

// Put it into this form

SetParent(appWin, this.Handle);

// Remove border and whatnot

SetWindowLong(appWin, GWL_STYLE, WS_VISIBLE);

What I want to do is to be able to release the hosted window after some time. In order to do that I use GetParent() function to get handle of previous parent and then restore it again but I'm stuck with SetWindowLong part. Any ideas?

Thanks

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Re: Window Styles

Mark Salsbery8-Dec-07 6:23

Mark Salsbery

8-Dec-07 6:23

SetWindowLong() returns the previous value of the one you set.
You could save that returned value and restore it when you
release the window...

LONG OldWindowStyle;
...
OldWindowStyle = SetWindowLong(appWin, GWL_STYLE, WS_VISIBLE);
...
SetWindowLong(appWin, GWL_STYLE, OldWindowStyle);

Mark Salsbery
Microsoft MVP - Visual C++

Java | [Coffee]

C++ resource file

Somaiia7-Dec-07 21:44

Somaiia

7-Dec-07 21:44

Hi all,
am writting a C++ application and I need to access my resource file really i use function

LoadLibrary() and it returns ahandle to the dll successfully but when I use the function

FindResource() and give it the resource id that I want to use it returns NULL, although when i use GetLastError() it tells that function endded successfully Confused | :confused:

!!!.

Here I wanna tell something this code is successfull code when I use it on concole application, but when I write it on the citrix endpoint analysis SDK and generate the exe file when I run the exe simply it gives that FindResource() returns NULL,
Please can any one help???
1 - can i pass the exe name to LoadLibrary() ??
2 - FindResource problem ?? WTF | :WTF:

Re: C++ resource file

Mark Salsbery8-Dec-07 6:30

Mark Salsbery

8-Dec-07 6:30

Somaiia wrote:
1 - can i pass the exe name to LoadLibrary() ??

Yes, you can pass the (path)name of an EXE to LoadLibrary().

Somaiia wrote:
2 - FindResource problem ??

Can you show the code calling FindResource()?

Mark

Mark Salsbery
Microsoft MVP - Visual C++

Java | [Coffee]

Does vs2008 support source control? How can vss for vc6 migrate to vs2008?

followait7-Dec-07 16:34

followait

7-Dec-07 16:34

I'd like to try vs2008.
BTW: I think the only bad thing is that it needs too much computer resources.

Re: Does vs2008 support source control? How can vss for vc6 migrate to vs2008?

Christian Graus7-Dec-07 17:57

Christian Graus

7-Dec-07 17:57

I don't think VS2008 supports source control any more, or any less, than VS2005. VSS and VSTS are the two source control solutions from MS you can plug in.

Yes, every new MS product assumes a current generation PC.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

GetItemRect(iItem,&rt,LVIR_ICON), the result in rt is not accurate

followait7-Dec-07 16:22

followait

7-Dec-07 16:22

It is the rect of the selection rect of the icon, not the rect of the icon itself. How to get the rect of the icon? The size of the icon is defined arbitrarily in CImageList.

tellp, tellg, seekp, seekg

clint19827-Dec-07 15:24

clint1982

7-Dec-07 15:24

Hi I've used files long time ago in C++.
I guess there is a certain new convention for using files in Visual C++ 2005,
I am using the class fstream with binary files and
I don't get the right file position when using tellp and tellg.
Is there any new class which I should use or any other method ?
I want still to work unmanaged not using the functions of system.dll which are used in .NET.

Thanks,
Clint

Re: tellp, tellg, seekp, seekg

David Crow7-Dec-07 16:43

David Crow

7-Dec-07 16:43

clint1982 wrote:
I am using the class fstream with binary files and
I don't get the right file position when using tellp and tellg.

What do you get? Expect?

Re: tellp, tellg, seekp, seekg

clint19827-Dec-07 22:18

clint1982

7-Dec-07 22:18

well, I write bytes into a file, I seek to the end of the file and call (tellp or tellg) after flushing the stream, and get 2 as an answer. But if I close the file, I see that the size of the file is 188.
So I expect that the answer would be 188.

Clint

Re: tellp, tellg, seekp, seekg

CPallini8-Dec-07 11:00

CPallini

8-Dec-07 11:00

Usually these functions work well. Can you post the relevant code?
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Which Mouse?

RobertE7-Dec-07 12:55

RobertE

7-Dec-07 12:55

I am writing a visual C++ Windows XP app for a computer that has 2 usb mice. When I receive a WM_MouseWhatever message I need to know which mouse it came from. This really has me stumped.

Re: Which Mouse?

Anthony Mushrow7-Dec-07 14:56

Anthony Mushrow

7-Dec-07 14:56

Something in my gut tells me this may not be possible with just the WM_ messages.
Perhaps if you could watch the usb port to see what goes in and out.

My current favourite word is: Bauble!

-SK Genius

Re: Which Mouse?

Mike Dimmick7-Dec-07 16:11

Mike Dimmick

7-Dec-07 16:11

When you have two mice, Windows doesn't give you two mouse pointers. It merely moves the single mouse pointer in response to whichever mouse moved. Therefore it gives no way to tell which mouse was moved.

DoEvents: Generating unexpected recursion since 1991

Re: Which Mouse?

Storm-blade8-Dec-07 10:45

Storm-blade

8-Dec-07 10:45

I needed to do something simular to handle multiple touchscreen monitors...

Have a look at Raw Input[^]...

Stormblade

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