C / C++ / MFC Discussion Boards

Re: How copy and paste a bmp?

Ganesh Ramaswamy5-Dec-01 5:42

Ganesh Ramaswamy

5-Dec-01 5:42

refer to Clipborad in MS Platform SDK or MSDN

Ganesh Ramaswamy

ActiveX

Mazdak5-Dec-01 4:28

Mazdak

5-Dec-01 4:28

How can I get rid of "Extended" tab
when I'm writing ActiveX with ATL or MFC???
thanks

CFrameWnd

Rickard Andersson²⁰5-Dec-01 2:42

Rickard Andersson²⁰

5-Dec-01 2:42

I have a dialog based app and want my app away from task bar. I have used Chris Maunders CSystemTray class to put a tray icon and a class for putting a picture as background in the app that will be hided in task bar. But when I use the code that you can see here, the menu items in the tray menu is disabled and the app wont be hided directly when I start my app, I need to minimize and then maximize it to see it hided in task bar.
I "stealed" the code to do this from the MSDN magazine. I downloaded it and did a class as they've done:

The subclassed CFrameWnd:
CHideInTaskBar public: CFrameWnd
{
...
}

I I override the PreCreatWindow(..) in the CHideInTaskBar class and it looked like this:

BOOL CHideInTaskBar::PreCreateWindow(CREATESTRUCT& cs)
{
if (CFrameWnd::PreCreateWindow(cs)) {
cs.dwExStyle |= WS_EX_TOOLWINDOW;
return TRUE;
}
return FALSE;
}

and in my app dialog (the main dialog that will be hided in task bar) Initinstance:
// The IDR_POPUP is the tray menu that all items becomes disabled! Frown | :(

...

CHideInTaskBar *pFrame = new CHideInTaskBar;

m_pMainWnd = pFrame;

pFrame->LoadFrame(IDR_POPUP, WS_OVERLAPPED, NULL, NULL);

// CReminderSEDlg is the dialog that is the main dialo and the dialog that will be hided in task bar

CReminderSEDlg dlg(pFrame);
int nResponse = dlg.DoModal();
if (nResponse == IDOK)
{}
else if (nResponse == IDCANCEL)
{}
...

Now I think you know everything that you should know... hm...

ASK FOR MORE!! I NEED THIS TO F***ING WORK!! YOU ARE WORTH A MILION OF DOLLARS IF YOU CAN HELP ME!!!!!!

------------------------------
©0d3 ©®4©k3® - That's me! Smile | :)

------------------------------

Re: CFrameWnd

Ganesh Ramaswamy5-Dec-01 8:12

Ganesh Ramaswamy

5-Dec-01 8:12

i dont have VC++ now to chk this. But i think u have to set the EX_TOOLWINDOW property in for the dialog box also so the it refrains from appearing in the task bar. Try this. I am not responsible if it doesnt work

Ganesh Ramaswamy

CString Access Voiliation

Ray Kinsella5-Dec-01 1:19

Ray Kinsella

5-Dec-01 1:19

1. Using a pointer to the CDialog

CMyDialog *p_lpMyDialog = new CMyDialog();

p_lpMyDialog->m_csMyCString = _T("Crash"); // Causes an access voliation

2. Not using a pointer

CMyDialog p_MyDialog;

p_MyDialog.m_csMyCString = _T("Crash"); // No problem here

Why does 1. cause a crash and 2. work without problem, anyone ?
I am developing with MS Visual C++/MFC 6.0 on Win98 SE.

Regards

Ray

"Je Suis Mort De Rire"

Re: CString Access Voiliation

Joaquín M López Muñoz5-Dec-01 2:43

Joaquín M López Muñoz

5-Dec-01 2:43

The only thing I can think of is that maybe the 2. is also causing an out of bounds indirection but the crash does not show as p_MyDialog is being created in the stack.
It's hard to say what the cause of the problem could be with that little information. Try with "Rebuild all", sometimes precompiled headers do funny things like this.
Better yet, post the code of CMyDialog and we'll have a better chance to spot some bug.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: CString Access Voiliation

Ray Kinsella5-Dec-01 3:53

Ray Kinsella

5-Dec-01 3:53

Joaquín M López Muñoz wrote:
Try with "Rebuild all", sometimes precompiled headers do funny things like this.

Damn precompiled headers, a clean rebuild sorted it out, I should have guessed. Thanks for the help.
Poke tongue | ;-P

Regards

Ray

"Je Suis Mort De Rire"

How do I get a shotcut target path?

Tommy H D Svensson4-Dec-01 23:59

Tommy H D Svensson

4-Dec-01 23:59

Hi all,

Given a string containing the shortcut name, how do I get the shortcut target path?

I tried to use BOOL SHGetShortcutTarget(...) but to no avail... My MSC++ couldn't find it, even after including Shellapi.h and linking to Shortcut.lib.

Any one has a clue on how to do this?

Thx!

/T

Re: How do I get a shotcut target path?

Jon Hulatt5-Dec-01 5:56

Jon Hulatt

5-Dec-01 5:56

AFAIK SHGetShortcutTarget is for WinCE only. I assume you're not using WinCE cos you'd probably have said so...

Frankly, i'd use the CShellLink class available on this site.

You'll also note that links like those which link to microsoft office are in fact special kinds of links which the API can't decode. and they're not documented. It's annoying.

Sorry to dissapoint you all with my lack of a witty or poignant signature.

Please Help!!!

The_Server4-Dec-01 23:34

The_Server

4-Dec-01 23:34

Hi, all.
=======

I need to:

void DoIt()
{
1) Grayscale_All ( desktop, windows, ...);
2) Open_My_New_Colored_Window_And_Dont_Ever_Lose_Focus();
}

OS: Win2000.

My problem is... number 1.
Where should I start? What should I do ?

10x.

BTW: come to #CodeProject on DalNet (mIRC)

Very important information about DLLs in VC++ !!!!!!!

mimi4-Dec-01 22:12

mimi

4-Dec-01 22:12

Yes ,

It is again I ,
The nagger with the DLLs in VC++ for Delphi .
I at last succesed to find out what was the problem with my DLL by the generous help of Tom Nuydens, Smile | :)

Well,
When the VC++ linker generates its output it changes the names of the export functions If you gave to a function the name "foo" it will look something like "_foo@4" and This is the name you haveto import in your Delphi app client program. To see the export table, you have run :
"dumpbin.exe /exports mydll.dll" from the command line.
_________________________________________________________________-
Simple ? OMG | :OMG:

Not exactly !
I , for example , dont success to run "dumpbin.exe" im order to find out the export table of my DLL to see the names of the functions.

Is Someone know how to do it exactly ?

Re: Very important information about DLLs in VC++ !!!!!!!

Joaquín M López Muñoz4-Dec-01 23:24

Joaquín M López Muñoz

4-Dec-01 23:24

You can force your DLL to export the function names without any decoration just by declaring it to be extern "C" like this:

extern "C" {
/* your declarations here */
} /* extern "C" */

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Thank you ! and thereless : Who know how to get the export table of the DLL

mimi5-Dec-01 8:29

mimi

5-Dec-01 8:29

Thank you ,
I would try it,

But nevertheless I'm want to know how can to know the names of the export functions whith the addition of VC++.

Re: Thank you ! and thereless : Who know how to get the export table of the DLL

Nemanja Trifunovic5-Dec-01 10:07

Nemanja Trifunovic

5-Dec-01 10:07

Take a look at this article

Smile | :)

I vote pro drink Beer | [beer]

Re: Very important information about DLLs in VC++ !!!!!!!

Rick York5-Dec-01 9:45

Rick York

5-Dec-01 9:45

The name is the result of the _stdcall calling sequence. The @4 means that four bytes must be subtracted from the stack pointer by the calling code when the function returns.

Make sure that your functions look something like this :

__declspec(dllexport)
int __stdcall foo( int argument )
{
return 0;
}

This will insure that they are exported.

What problem are you having with dumpbin ? If it is not showing any exports then the problem is most likely with the dllexport statement.

INet

candan4-Dec-01 22:10

candan

4-Dec-01 22:10

Hi:
I use InternetOpenUrl to get a HTTP file.
But in Windows 98 if InternetOpenUrl fail, I call ShellExecute will hang.Some one know the problem?
Give me some hints.Thanks

A view inside a Tabcontrol

Giancarlo Amati4-Dec-01 21:14

Giancarlo Amati

4-Dec-01 21:14

Hello Everybody,

I'm trying to insert a CView object
inside a TabControl.
I follow the following step:
a) Create a Dialog;
b) Inserted a TabCtrl
c) Created a CMyTabCtrl derived from CTabCtrl
d) Inserted a CView Object in CMytabCtrl.
e) Used CView->Create(...) to create a Child window inside the tab control

Is this the only way to create a view in the tabControl? Why the View position
is not perfectly inside the Tab Control Client Area?

BYE. Big Grin | :-D

Have a good day

how to Convert modeless dialogs to modal dialogs

Ivan Yap4-Dec-01 20:55

Ivan Yap

4-Dec-01 20:55

Please advise me how am I convert the modeless dialogs to modal dialogs.
1. i hid the modeless dialogs by using the ShowWindows(FALSE)
2. How ever the program icon disappear in the task bar.

3. I thinking of making the modeless dialogs so that it appear in the task bar.

thank you.
please advise
Cry | :((

Re: how to Convert modeless dialogs to modal dialogs

Alvaro Mendez6-Dec-01 10:27

Alvaro Mendez

6-Dec-01 10:27

Are you using MFC? Is this the main app's dialog box? Have you tried just changing the code to use DoModal instead of Create? If you show some code, I may help you better.

Regards,
Alvaro

Assign Character Arrays data from an STL Container

valikac4-Dec-01 20:24

valikac

4-Dec-01 20:24

Hi.

Let say there is a standard STL vector contain with data in it. How do you assign a character arrays the data inside the vector contain either through value or pointer?

I need to do that so I could write the data to a file in binary mode.

Thanks,
Kuphryn

Re: Assign Character Arrays data from an STL Container

Joaquín M López Muñoz4-Dec-01 20:57

Joaquín M López Muñoz

4-Dec-01 20:57

I'm not sure I've understood your request, but if what you're after is getting a char * to the contents of a vector, then the expression &v[0] does the trick (v being the vector), as in

std::vector<char> v;
...
fwrite(&v[0],1,v.size(),fp);

Hope this helps.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Explorer-like interface

Jerome Conus4-Dec-01 19:40

Jerome Conus

4-Dec-01 19:40

Hi,

I have an SDI 'windows explorer'-like application (generated by the AppWizard), with a left pane (CLeftView) and a right pane (CRightView).
Here are my questions :

- When the user opens a new file, a file selector is automatically openned. How can I choose the file type (*.xxx instead of *.*) ?

- I would like that when the user chooses to save the file, no matter which view is active, the same method is called. But, with the ClassWizard, the function to react to the 'OnCommand' for a menu is different for each view. How can I have a unique method for the 'File save', no matter which view is active ?

Thank you in advance for your help !

Jerome

Re: Explorer-like interface

Ray Kinsella5-Dec-01 1:28

Ray Kinsella

5-Dec-01 1:28

- When the user opens a new file, a file selector is automatically openned. How can I choose the file type (*.xxx instead of *.*) ?

I assume you are using CFileDialog, look at its m_ofn member, this is of type 'OPENFILENAME' structure. The 'OPENFILENAME' has two members you need to modify lpstrFilter and lpstrCustomFilter.

How can I have a unique method for the 'File save', no matter which view is active ?

Create a static function somewhere to do the work, and then call it from everywhere else.

Regards

Ray

"Je Suis Mort De Rire"

Unicode clipboard?

AG4-Dec-01 19:30

4-Dec-01 19:30

Hello,

Is the clipboard in WinNT unicode? ie. can I copy - paste Japanese characters from one editor to another (both editors support unicode) without loss of data or junk characters filling the data?

Regards,
~A.

Re: Unicode clipboard?

Michael Dunn4-Dec-01 19:48

Michael Dunn

4-Dec-01 19:48

Yes.

--Mike--
http://home.inreach.com/mdunn/
While I can't be correct on all matters, I can make the reassuring claim that where I am inaccurate, I am at least definitively inaccurate.
Heart | [heart]

your

with

and

Sonork - 100.10414 AcidHelm

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