C / C++ / MFC Discussion Boards

Re: [SOLVED] Memory Leaks in IMPLEMENT_DYNCREATE?!?!?!?

Jawache10-Sep-02 12:48

10-Sep-02 12:48

Got it.

The brute force method. Make a baseline and then change code randomly untill it goes away.

Turns out it was some sort of strange recursicve pointer deletion in the Splitter Window Class.

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

Re: Memory Leaks in IMPLEMENT_DYNCREATE?!?!?!?

Jawache9-Sep-02 2:26

Jawache

9-Sep-02 2:26

Is there any way to set a contitional breakpoint when m_pDocManager changes or something?

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

Saving DC contents in an image file

Majid Shahabfar9-Sep-02 1:01

Majid Shahabfar

9-Sep-02 1:01

Hi dear,
I want to save the CDC class content into a bitmap file.
How can I do this?
I've done it by using GDI+ simply because this functionality exists in GDI+ library. But I don't wanna use GDI+ in my application.

Re: Saving DC contents in an image file

Jawache9-Sep-02 1:18

Jawache

9-Sep-02 1:18

I hope you don't mind me asking but i was looking to implement similar functionality in my app a bit later.

Is there an article or some information you can point me to as to how to accomplish this?

Cheers

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

3D plot

Majid Shahabfar9-Sep-02 0:51

Majid Shahabfar

9-Sep-02 0:51

Hi dear,
I'm looking for a class or library for crating a 3D plot
for x,y,z series of data, programmatically.
a 3D plot, as you've seen in MATLAB software.
Thank you in advance.

Re: 3D plot

Jawache9-Sep-02 1:24

Jawache

9-Sep-02 1:24

Have you tried octave.

Only used it on UNIX nut i'm pretty sure its available for Windows.
http://www.octave.org/

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

ROOT

Jonathan de Halleux9-Sep-02 1:44

Jonathan de Halleux

9-Sep-02 1:44

Have you tried ROOT ?

http://root.cern.ch/

Jonathan de Halleux, Belgium.

HOWTO Place controls in taskbar??

Don Miguel9-Sep-02 0:36

Don Miguel

9-Sep-02 0:36

Hello,

I try to figure myself, but can't, so please help:

I want to place a input box and a button in taskbar,
which stay there all the time. When user have to search for a
keyword, type it in input and hit the button.

Which is the way to place windows controls in taskbar?
But in system tray instead??

Mad | :mad:

Thanks in advance.

Re: HOWTO Place controls in taskbar??

Andreas Saurwein9-Sep-02 2:06

Andreas Saurwein

9-Sep-02 2:06

You need to create either a application bar or a taskbar (band?) which contains your controls.

int x=1, y=5; 
x^=y^=x^=y; // whats the content of x and y now?
<a href="http://www.codeproject.com/tips/StupidXORTrick.asp" target="_blank">ClickHereForHelp();</a>

Re: HOWTO Place controls in taskbar??

Stephane Rodriguez.9-Sep-02 2:09

Stephane Rodriguez.

9-Sep-02 2:09

Objects in the taskbar are called "Desktop bands". Article here[^]

MS quote (http://www.microsoft.com/ddk) : As of September 30, 2002, the Microsoft® Windows® 2000 DDK, the Microsoft Windows 98 DDK, and the Microsoft Windows NT® 4.0 DDK will no longer be available for purchase or download on this site. Support for development will ship at the same time as the Windows XP Service Pack 1 (SP1) release.

Re: HOWTO Place controls in taskbar??

Don Miguel9-Sep-02 2:44

Don Miguel

9-Sep-02 2:44

Thanks a lot, at least I know now what
I'm searching. I really forgoted the
term "Desktop band", and I did lot of searches
after other keywords.

Smile | :)

Regards

StretchDIBits Error

code_cold9-Sep-02 0:31

code_cold

9-Sep-02 0:31

I use the StretchDIBits to stretch blt a bmp to memory dc,
But when blt a large bmp file(4000 X 3000 X 24bit, or larger)
The part of displayed image will be wrong, for example, the top part of the image will disply the bottom part, and the botom part will display nothing

Why this happened ?
Any one meet this errors ?

It's me, code_cold

ri-socket

yuke9-Sep-02 0:23

yuke

9-Sep-02 0:23

If i want to send and receive bitmap by socket, how i can do?

#include

Jh39-Sep-02 0:13

Jh3

9-Sep-02 0:13

What is the difference between #include "" statements declared in the .cpp and the .h files?

tx
J

Re: #include

Rickard Andersson²⁰9-Sep-02 0:46

Rickard Andersson²⁰

9-Sep-02 0:46

Jolene wrote:
What is the difference between #include "" statements declared in the .cpp and the .h files

There is no difference!(?)

Smile | :)

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

Re: #include

Jawache9-Sep-02 1:12

Jawache

9-Sep-02 1:12

apart from the fact that include statements in .h files will also be included in any other files that include that .h file there is no difference.

I prefer to only add #include statements in .h file if absolutely necessary if it isn't i use forward decraltions of the classes.

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

Shell extension query (I think)

Nish Nishant9-Sep-02 0:09

Nish Nishant

9-Sep-02 0:09

Hey guys,

Anyone knows how to add a top-level icon to the desktop - like My Computer, Recycle Bin, Network Neighbourhood Internet Explorer etc...?

Regards and thanks,
Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: Shell extension query (I think)

Andreas Saurwein9-Sep-02 2:10

Andreas Saurwein

9-Sep-02 2:10

You want just a link or a REAL implementation like the My Computer icon?
The link is simple placing a .lnk file into the users ?:\Documents and Settings\[username]\Desktop.
The other way requires a extending the explorer namespace (think twice before you say 'thats what i need') Wink | ;)

int x=1, y=5; 
x^=y^=x^=y; // whats the content of x and y now?
<a href="http://www.codeproject.com/tips/StupidXORTrick.asp" target="_blank">ClickHereForHelp();</a>

Re: Shell extension query (I think)

Nish Nishant9-Sep-02 4:46

Nish Nishant

9-Sep-02 4:46

I don't want a link obviously, that's why I put "shell extension" into my subject line Smile | :)

Andreas Saurwein wrote:
The other way requires a extending the explorer namespace (think twice before you say 'thats what i need')

I don't need it really. But I want it. Any pointers, articles...?

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: Shell extension query (I think)

Roger Stewart9-Sep-02 6:20

Roger Stewart

9-Sep-02 6:20

Nish,
Take a look at Michael Dunn's article, The Complete Idiot's Guide to Writing Namespace Extensions - Part I
[^]

It may have some stuff that you can use.

Roger Stewart
"I Owe, I Owe, it's off to work I go..."

WinExec("Notepad.exe " +fileName,SW_SHOW doesn't work )

Qadddd9-Sep-02 0:07

Qadddd

9-Sep-02 0:07

fileName is the name of the file I just created some lines above the WinExec Command.
I have an Object f of CStdioFile type, I open it in creation mode, I write in it with f.WriteString and then close it. I want to launch a Notepad to preview its content, Notepad starts but the content of file is not displayed, if I click on File>Open>file name, it works and content is displayed .
Format of WinExec and content of fileName are correct because using the same instruction a the beginning of my routine (before open/write/close), I can start a notepad displaying the file previously created.
It is just like the file is not yet available for notepad even if a close is done ...!?
Any help is welcome
DD

Re: WinExec("Notepad.exe " +fileName,SW_SHOW doesn't work )

adamUK9-Sep-02 1:21

adamUK

9-Sep-02 1:21

Couldn't you open the file with nOpenFlags = CFile::shareDenyNone so that other apps have access to your file even when you have it open within your app?

Adam.

"I spent a lot of my money on booze, birds and fast cars. The rest I just squandered"
George Best.

Re: WinExec("Notepad.exe " +fileName,SW_SHOW doesn't work )

Qadddd9-Sep-02 2:45

Qadddd

9-Sep-02 2:45

I would like to precise that I have tried to open my file with CFile::shareDenyNone because I thought problem was coming from a conflict but result was the same ...

Re: WinExec("Notepad.exe " +fileName,SW_SHOW doesn't work )

adamUK9-Sep-02 9:31

adamUK

9-Sep-02 9:31

DD,

Are you opening the file with just CFile::modeCreate? I have just put together an app to try to recreate your problem on VC6. Everything works just fine but you can't write to your file if you open in CFile::modeCreate only. It has to be CFile::modeCreate+CFile::modeWrite.

e.g.

CStdioFile file;<br />
file.Open("c:\\filetest.txt", CFile::modeCreate+CFile::modeWrite+CFile::shareExclusive,NULL);<br />
file.SeekToEnd();<br />
file.WriteString("this is written\n");<br />
file.Close();<br />
WinExec("c:\\WINNT\\notepad.exe c:\\FileTest.txt",SW_SHOW);

works fine and dandy.

CStdioFile file;<br />
file.Open("c:\\filetest.txt",CFile::modeCreate+CFile::shareExclusive,NULL);<br />
file.SeekToEnd();<br />
file.WriteString("this is written\n");<br />
file.Close();<br />
WinExec("c:\\WINNT\\notepad.exe c:\\FileTest.txt",SW_SHOW);

fails at WriteString() and never gets to WinExec.

If you post the code that's causing you a prob then perhaps we could have a look?

hope this helps

Adam.

P.S. would recommend using ShellExecuteEx rather than WinExec as you can get a handle to Notepad to see when it has terminated.

"I spent a lot of my money on booze, birds and fast cars. The rest I just squandered"
George Best.

Re: WinExec("Notepad.exe " +fileName,SW_SHOW doesn't work )

Carlos Antollini9-Sep-02 9:38

Carlos Antollini

9-Sep-02 9:38

You don't need to use CFile::SeekToEnd
When you open the file you are creting the file, id for that you are in the end of the file....

Best Regards

Carlos Antollini.
Sonork ID 100.10529 cantollini

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