C / C++ / MFC Discussion Boards

_BaRNi_9-Sep-04 4:37

9-Sep-04 4:37

I have a control that subclasses CButton and I need it to be _exactly_ 256x256 pixels...
How can I set the exact Size of a control? I've tried editing the .rc, but the measures are given in DLUs...
Thank you people!!

Re: Setting EXACT Button Size

alex.barylski9-Sep-04 5:09

alex.barylski

9-Sep-04 5:09

MoveWindow???

How do I print my voice mail?

Re: Setting EXACT Button Size

_BaRNi_9-Sep-04 5:19

_BaRNi_

9-Sep-04 5:19

Thanks for your reply!

I was meaning at design time, not at runtime... I've fixed it temporarily with on-the-fly resizing during initialization... But I'd like to know if there is a standard method...

Re: Setting EXACT Button Size

Maximilien9-Sep-04 6:47

Maximilien

9-Sep-04 6:47

we/you can't really make a button have fixed PIXEL size in the resource editor, the units are DLUs, Dialog Logic Units, and are proportional to some windows dohickey ( big font, small font, ... ).

the only way to do it, is to use MoveWindow in the the dialog initialization, but watch out for big font vs. small font settings.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Setting EXACT Button Size

David Crow9-Sep-04 8:24

David Crow

9-Sep-04 8:24

Don't waste your time. Thinking about pixels at design time is a sure recipe for failure. The whole reason, and beauty, for having DLUs is so that pixels do not matter. Otherwise, the controls will work on one machine and one machine only...yours. On any other machine, the results will be less than desireable. Things like resolution, font size, display driver, etc. will wreak havoc on your application.

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

CInternetFile class to read from the server

Cris9-Sep-04 4:18

Cris

9-Sep-04 4:18

Hi,

I need to read a file from the server, then I will use the CInternetFile class for this (is anyone better ??).

Is need the configure anything in the server (or course, user and password) like samba ??

Thanks,
[]'s Cris

Re: CInternetFile class to read from the server

David Crow9-Sep-04 8:25

David Crow

9-Sep-04 8:25

Cris wrote:
I need to read a file from the server, then I will use the CInternetFile class for this (is anyone better ??).

Are you asking how to read a file from the server, or use the CInternetFile class?

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

Adding an ActiveX control in ActiveX control project

Muhammad Azam9-Sep-04 4:10

Muhammad Azam

9-Sep-04 4:10

hi I am developing an ActiveX control in which i have placed a dialog box and and on that dialog box there are some controls like button control,edit control etc (its working fine). But when i add registered controls like flex grid control (from project>Add to project...>components and controls ...) on the dialog, the dialog box's m_hWnd member becomes NULL.

Does any one know how to solve this problem.its urgent please.

regards
Azam

Re: Adding an ActiveX control in ActiveX control project

jmkhael9-Sep-04 4:35

jmkhael

9-Sep-04 4:35

Call AfxEnableControlContainer in InitInstance

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Adding an ActiveX control in ActiveX control project

Muhammad Azam9-Sep-04 19:25

Muhammad Azam

9-Sep-04 19:25

thanks sir
Your reply has give my thought a new direction thank you very much;

could you plz send me a sample program that will help me a lot.

regards
Azam

inheritance,searching and recursion

Member 13550639-Sep-04 3:48

Member 1355063

9-Sep-04 3:48

A class that forma part of a larger software component implements the bubble sort and sequential search on ana array of type double.The client wishes to replace the bubble sort by the Quicksort and the sequential search by the binary search.Both the quicksort and binary search are to be implemented recursively.Use inheritance to implement the two classes and demonstrate the use of polymorphism

Re: inheritance,searching and recursion

David Crow9-Sep-04 8:29

David Crow

9-Sep-04 8:29

Can we first have the name of your instructor to see if it is permissible for others to do your homework? I'm sure asking for help on specific aspects of the problem is ok (only after you've tried and failed, though), but to just outright ask others to do your homework is an absolute no-no. Good luck!

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

Dinamic Menus

ivax9-Sep-04 2:33

ivax

9-Sep-04 2:33

I need your help!!!!

I need to do a Dinamic menu during execution. The question is that I have a Menu, in this menu is a Submenu. OK, I need insert option in this Submenu and when click in one option execute a diferent functions.

How can I do it?

How to change the menu bar icon....

bouli9-Sep-04 1:48

bouli

9-Sep-04 1:48

Hi,

How can I change the icon that is displayed in the menu bar when a document is maximized in an MDI application while it has no doc/view suport.

Best regards.

Thanks.

There is no spoon.

Re: How to change the menu bar icon....

Roger Allen9-Sep-04 11:40

Roger Allen

9-Sep-04 11:40

To change the icon get a pointer to the maximized frame window. You can then call SetIcon() on this. You will also have to call DrawMenuBar() on the main frame to get the change to be updated on the screen as it will not be redrawn until you do.

If you vote me down, my score will only get lower

is there a memory limitation for MFC programs?

lonely_life9-Sep-04 0:52

lonely_life

9-Sep-04 0:52

the following is part of code from Nero SDK (NeroCmd), which recursively generate a ISO tree for buring, the main concept is finding all subfolder & folders of passed in directory "psFilename", this code works fine under console mode, but when I tried to put it to my MFC project my program always auto close due to it, but sometimes my code could get through without any modification, anybody knows what is going on here? is that because there's a memory limitation for MFC dialog application, due to the recursion here.

CExitCode CBurnContext::CreateIsoTree (const PARAMETERS & params, LPCSTR psFilename, NERO_ISO_ITEM ** ppItem, int iLevel)
{
// CFindFiles is a helper class for file and subdirectory handling

CFindFiles ff (psFilename);

*ppItem = NULL;

if (!ff.IsValidEntry())
{
if (0 == iLevel)
{
// If we haven't found any entries and we are on the
// first level of recursion then this should be
// reported as an error.

m_ErrorLog.printf ("File specification '%s' resulted in no matches!\n", psFilename);

return EXITCODE_FILE_NOT_FOUND;
}
else
{
// If we are on a level other than first, it is ok
// not to find any entries. This simply means we
// stumbled upon an empty directory somewhere in a tree.

return EXITCODE_OK;
}
}

char sPath[MAX_PATH];

// Make sure that we have no relative path names, but only absolute paths

if (NULL == _fullpath (sPath, psFilename, sizeof (sPath)))
{
// Our path buffer is too small. Bail out!

return EXITCODE_INTERNAL_ERROR;
}

// Find the last blackslash and remove it if found.
// This will leave us with a root directory.

LPSTR psBackslash = strrchr (sPath, '\\');
if (NULL != psBackslash)
{
*psBackslash = '\0';
}

do
{
std::string sNewPath;

sNewPath = sPath;

sNewPath += "\\";
sNewPath += ff.GetName ();

if (ff.IsSubDir())
{
// Here we handle subdirectories

// strcmp returns 0 on equal strings.
// Proceed if name contains none of "." or ".."

if ((0 != strcmp (ff.GetName (), ".")) && (0 != strcmp (ff.GetName (), "..")))
{
// Append a wildcard to the path and do a recursive search.

sNewPath += "\\";
sNewPath += ff.GetWildcard ();

NERO_ISO_ITEM * pNewItem = NeroCreateIsoItem ();
if (NULL == pNewItem)
{
DeleteIsoItemTree (*ppItem);
return EXITCODE_OUT_OF_MEMORY;
}

// Attach this item to the beginning of the list.

if (*ppItem != NULL)
{
pNewItem->nextItem = *ppItem;
}
*ppItem = pNewItem;

pNewItem->isDirectory = TRUE;
time_t t = ff.GetCreateTime ();
pNewItem->entryTime = *localtime (&t);

StoreFileName (pNewItem->fileName, pNewItem->longFileName, ff.GetName ());

// If we the user wants recursive search, only then do we
// actually recurse at deeper levels otherwise ignore directories
// alltogether.
//
if (params.GetRecursive ())
{
// Create an ISO item tree at a deeper level

EXITCODE code = CreateIsoTree (params, sNewPath.c_str (), &pNewItem->subDirFirstItem, iLevel + 1);
if (EXITCODE_OK != code)
{
DeleteIsoItemTree (*ppItem);
return code;
}

// We don't allow empty directories. This should probably
// be regulated by a command line switch.
//
if (pNewItem->subDirFirstItem == NULL)
{
// If the newly added directory is empty, remove it!
// We first detach it from the list and then
// deallocate it.
//
*ppItem = pNewItem->nextItem;
pNewItem->nextItem = NULL;
DeleteIsoItemTree (pNewItem);
}
}
}
}
else
{
// Here we handle regular files

NERO_ISO_ITEM * pNewItem = NeroCreateIsoItem ();
if (NULL == pNewItem)
{
DeleteIsoItemTree (*ppItem);
return EXITCODE_OUT_OF_MEMORY;
}

StoreFileName (pNewItem->sourceFilePath, (char *) pNewItem->longSourceFilePath, sNewPath.c_str ());

pNewItem->isDirectory = FALSE;
time_t t = ff.GetCreateTime ();
pNewItem->entryTime = *localtime (&t);

StoreFileName (pNewItem->fileName, pNewItem->longFileName, ff.GetName ());

// Attach this item to the beginning of the list.

if (*ppItem != NULL)
{
pNewItem->nextItem = *ppItem;
}
*ppItem = pNewItem;
}

ff.FindNext ();
}
while (ff.IsValidEntry ());

return EXITCODE_OK;
}

Re: is there a memory limitation for MFC programs?

vineas9-Sep-04 6:34

vineas

9-Sep-04 6:34

Default stack size is the same for MFC apps vs console apps (1MB if I remember correctly). However with an MFC app, you'll find much more of your stack being used by MFC itself. The console app doesn't have this overhead which is why it was running OK. Also, if you're running a debug build, a lot of the stack is being used by all the debugging info.

Since you're pretty close, fails sometimes and not others, you could probably just bump up your stack size a bit and be OK. This is done via a link option, covered in MSDN here[^].

Another option would be to dump this code out into a worker thread, which will have it's own stack and won't have the MFC overhead using alot of it.

-----
In the land of the blind, the one eyed man is king.

Not Running when adding RIch Edit Box to a Dialog

pubududilena9-Sep-04 0:44

pubududilena

9-Sep-04 0:44

hi,
I am doing a MFC Program & going to add a Rich Text Box to a Dialog. I can add Rich Text to a Dialog Box.But after compile & Run,the Application is not DISPLAYED. Why like this??
can any body please reply me.
Thanks...

Re: Not Running when adding RIch Edit Box to a Dialog

Arsalan Malik9-Sep-04 0:48

Arsalan Malik

9-Sep-04 0:48

This also happened to my program, but when I re-installed Visual Studio, it worked. Any one who knows why this happens? Confused | :confused:

Arsalan Malik

Re: Not Running when adding RIch Edit Box to a Dialog

David Crow9-Sep-04 2:19

David Crow

9-Sep-04 2:19

pubududilena wrote:
But after compile & Run,the Application is not DISPLAYED. Why like this??

You have not loaded the rich edit DLL. This can be done by calling AfxInitRichEdit(). This is laid out in detail here.

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

Create Thumbnail of MS WORD file

Sumit Kapoor9-Sep-04 0:07

Sumit Kapoor

9-Sep-04 0:07

hi..
Can u give me idea of Create Thumbnail of MS WORD file first Page.
I'm using vc++ & asking used to select file from my list box. then there is a preview box there which sud show image preview of Word file selected in listbox.

I hope u must have an idea..
Thanks

---Sumit Kapoor---sumit_kapoor1980@hotmail.com

Debugging with Visual Studio .NET

Jerome Conus8-Sep-04 23:32

Jerome Conus

8-Sep-04 23:32

Hi !

Our team just moved to VS.NET and we are facing some problems with the build-in debugger : very often, variables seem uninitialized in the debugger, where they actually are. This makes the debugging very difficult.

Any idea what's wrong ?

Other problem : very often, when the app crashed in a DLL it is using, the call stack is useless because it is almost empty and I cannot track back to the function which called the DLL function.

And, as aside question : would you recommend using another debugger on the Windows platform ?

Thanks for your advices,
Jerome

Re: Debugging with Visual Studio .NET

Michael Dunn9-Sep-04 7:10

Michael Dunn

9-Sep-04 7:10

I've seen odd debugger issues in VC 2003 as well, and a rebuild-all of the solution has always cured them.

--Mike--
Personal stuff:: Ericahist | Homepage
Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt
CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ
----
"How does one know if one's aura is dirty? Does someone come along with their finger and write 'wash me' on it?"
-- Buffy
"That probably would've sounded more commanding if I wasn't wearing my yummy sushi pajamas."
-- Buffy

How to create a autofill utility

akszn8-Sep-04 23:02

akszn

8-Sep-04 23:02

Dear Memebers,
Wishes to all !
Here i am looking for some tips to create my own utility to autofill the contents in a web page fields.

Please suggest do anybody have developed it yet. If somebody have any Idea about it. please let me know.

To know more about google toolbar please visit : http://www.google.com
Please spare your time to reply this post, its urgent

With Regards

Getting Page Size and then Printing Text.

Eversman8-Sep-04 21:52

Eversman

8-Sep-04 21:52

Hey all,

I am trying to get the page size of the page and then printing certain words on the page.

This is what I have so far.

<br />
<br />
//// Create a printer DC    <br />
	CPrintDialog dlg(FALSE);     <br />
	CDC dc; <br />
	#if 0 //Show print dialog.    <br />
	if (dlg.DoModal() == IDCANCEL)       <br />
		return;   <br />
	dc.Attach(dlg.GetPrinterDC());<br />
	#else //Don't show print dialog.    <br />
	PRINTDLG prtDlg;    <br />
	AfxGetApp()->GetPrinterDeviceDefaults(&prtDlg); //Should check for error.    <br />
	dlg.m_pd.hDevMode = prtDlg.hDevMode;    <br />
	dlg.m_pd.hDevNames = prtDlg.hDevNames;    <br />
	dc.Attach(dlg.CreatePrinterDC());<br />
	#endif   <br />
	dc.m_bPrinting = TRUE; //// Now use the DC.    <br />
	//Get the page size.    <br />
<br />
	dc.GetDeviceCaps(LOGPIXELSX/LOGPIXELSY); <br />
<br />
	CRect printArea;<br />
        printArea.SetRect(LOGPIXELSX/3, LOGPIXELSY/3, dc.GetDeviceCaps(HORZRES), dc.GetDeviceCaps(VERTRES));<br />
<br />
CString str("Delayed Entry");<br />
dc.DrawText(str, printArea, DT_NOPREFIX | DT_WORDBREAK);<br />
<br />
<br />

It is printing, but not where I need it to print. Am I doing it wrong or is there something I am missing?

Thanks

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