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Re: Creating a SDI window from a dialog (MFC)

sascha.billian1-Mar-07 8:32

1-Mar-07 8:32

Yes, the window appears.
I haven't the code here, because i'm at home, but the window shows as it should.

but there's one thing i forgot to tell you.

The problem problem occured, when we tried to gray out a button in the toolbar by clicking on another toolbar button. It didn't gray out.

BUT:

in the menu bar, if i try the same with the menu items which are linked with the buttons (same id), one item is grayed out when clicking the other:

this is the code which is used to create the doc/view and show the window:

CSingleDocTemplate* pDocTemplate;<br />
	pDocTemplate = new CSingleDocTemplate(<br />
		IDR_MAINFRAME,<br />
		RUNTIME_CLASS(CSDI_LeerDoc),<br />
		RUNTIME_CLASS(CMainFrame),       <br />
		RUNTIME_CLASS(CSDI_LeerView));<br />
	AddDocTemplate(pDocTemplate);<br />
<br />
	CCommandLineInfo cmdInfo;<br />
	ParseCommandLine(cmdInfo);<br />
<br />
	if (!ProcessShellCommand(cmdInfo))<br />
		return FALSE;<br />
<br />
	m_pMainWnd->ShowWindow(SW_SHOW);<br />
	m_pMainWnd->UpdateWindow();<br />
...

thanks!
Sascha

Re: Creating a SDI window from a dialog (MFC)

Mark Salsbery1-Mar-07 8:53

Mark Salsbery

1-Mar-07 8:53

I'm lost. Is the probem with disalng a button or with window creation?

Mark

"Great job, team. Head back to base for debriefing and cocktails."
(Spottswoode "Team America")

Re: Creating a SDI window from a dialog (MFC)

led mike1-Mar-07 11:38

led mike

1-Mar-07 11:38

sascha.billian wrote:
Sure, the problem is caused by the dialog "standing" between the application and the doc/view.

And you "know" this because you developed the document/frame/view classes in a normal SDI application where it all works as expected but when you share the source code files into your dialog based application it behaves differently... correct?

led mike

Re: Creating a SDI window from a dialog (MFC)

sascha.billian5-Mar-07 2:08

sascha.billian

5-Mar-07 2:08

correct.

any clues?

thanks
Sascha

Re: Creating a SDI window from a dialog (MFC)

led mike5-Mar-07 6:42

led mike

5-Mar-07 6:42

sascha.billian wrote:
any clues?

My guess would be that the command routing is not initialized. Put Spy++ on your dialog and then envoke an action in your frame window and see if it shows up in the dialog messages. If it does you might be able to override OnCmdMsg in the dialog and forward the message to the frame window.

led mike

Re: Creating a SDI window from a dialog (MFC)

sascha.billian6-Mar-07 19:41

sascha.billian

6-Mar-07 19:41

Hi Mike,

That sounds like a good idea.
As soon as my colleague is at the office we'll try that.

Thanks so far.
Sascha

Read from file into array

JBAK_CP1-Mar-07 3:42

JBAK_CP

1-Mar-07 3:42

I'm currently using 'fgets' to read a file like the sample below, and need to do some processing on it.....My first question is, is there a way for me to read the X,Y & Z data and store them into a multi-dimensional array? Secondly, the number of entries for the X,Y & Z data can vary from one file to another, so if an array is to be used, it has to be able to be sized dynamically.

using C++, Visual Studio 6.0

Any help would be greatly apperciated, thanks:

Sample File Data:

Name: Test
Date: mm/dd/yyyy

X Y Z

404.72 1064.42 60
402.224 1064.58 60
399.728 1064.75 60

Description: This is a test

//---------------------------------------------------------------------------------------------------------
Here is the code I have so far:

CFile importFile;
importFile.Open(fullName, CFile::modeRead);

CArchive ar (&importFile, CArchive::load);

if(!ar.ReadString(strLine))
{
importFile.Close();
return;
}

do // Repeat while there are lines in the file left to process
{
if( strLine.GetLength() == 0)
{ continue;

}

CString strText = strLine;

if(strText.GetLength() != 0)
MessageBox(strText,NULL,NULL);

}while(ar.ReadString(strLine));

Re: Read from file into array

David Crow1-Mar-07 3:46

David Crow

1-Mar-07 3:46

arunkk1 wrote:
I'm currently using 'fgets' to read a file like the sample below...

Check again. You are using ReadString() to read from the file.

arunkk1 wrote:
is there a way for me to read the X,Y & Z data and store them into a multi-dimensional array?

Yes.

arunkk1 wrote:
Secondly, the number of entries for the X,Y & Z data can vary from one file to another, so if an array is to be used, it has to be able to be sized dynamically.

MFC, as well as the STL, have several provisions for this.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: Read from file into array

JBAK_CP1-Mar-07 3:53

JBAK_CP

1-Mar-07 3:53

Correct, I was using fgets.....using ReadString now.

Could you please tell me how or point me to an example on how to read the data into a multi-dimensional array?

Thanks

Re: Read from file into array

David Crow1-Mar-07 3:58

David Crow

1-Mar-07 3:58

arunkk1 wrote:
Could you please tell me how or point me to an example on how to read the data into a multi-dimensional array?

How many numbers are on each line of the file? If it's a fixed number, just spilt strLine using AfxExtractSubString(). Now add those three numbers to an array like you would any other.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Problems with project from VS2003 in VS2005

Asdef Jaker1-Mar-07 3:21

Asdef Jaker

1-Mar-07 3:21

Hi,
I've got some project I need to compile under VS2005. But I've run into this problem:

error C2664: 'CGeneralAbstract::ParsePath' : cannot convert parameter 5 from 'char **' to 'const char *&'

The call code looks like this:

char *secondPart;<br />
General->ParsePath(parent, path, pathType, pathIsDir, secondPart)

The declaration looks like this:
virtual BOOL WINAPI ParsePath(HWND parent, char *path, int &type, BOOL &isDir, const char *&secondPart) = 0;

Thank you for you help.
PS:I'm coming back to C++ from C# Unsure | :~

Asdef Jaker
What part of "Thou shall not kill" don't you understand? GOD

Re: Problems with project from VS2003 in VS2005

prasad_som1-Mar-07 3:40

prasad_som

1-Mar-07 3:40

Asdef Jaker wrote:
char *secondPart;
General->ParsePath(parent, path, pathType, pathIsDir, secondPart)

Are you sure, its not ,

char *secondPart;
General->ParsePath(parent, path, pathType, pathIsDir, &secondPart)

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Problems with project from VS2003 in VS2005

Asdef Jaker1-Mar-07 4:27

Asdef Jaker

1-Mar-07 4:27

Thank you for the idea, but it doesn't work.
Using your code the error is:

error C2664: 'CGeneralAbstract::ParsePath' : cannot convert parameter 5 from 'char **' to 'const char *&'

Asdef Jaker
What part of "Thou shall not kill" don't you understand? GOD

Re: Problems with project from VS2003 in VS2005

prasad_som1-Mar-07 5:34

prasad_som

1-Mar-07 5:34

Asdef Jaker wrote:
Thank you for the idea, but it doesn't work.

I asked you the question , whether you have passed pointer to pointer, instead of pointer? Because, error suggests so.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Problems with project from VS2003 in VS2005

C^hris L^osinger1-Mar-07 5:29

C^hris L^osinger

1-Mar-07 5:29

how about:

General->ParsePath(parent, path, pathType, pathIsDir, (const char *)secondPart)

?

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Re: Problems with project from VS2003 in VS2005

Michael Dunn1-Mar-07 5:54

Michael Dunn

1-Mar-07 5:54

Fix the type of secondPart so it matches the type that ParsePath() is expecting:

const char* secondPart;

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

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Re: Problems with project from VS2003 in VS2005

James R. Twine1-Mar-07 6:30

James R. Twine

1-Mar-07 6:30

Michael Dunn wrote:
Ford, what's this fish doing in my ear?

Ford as in Prefect? Smile | :)

Peace!

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

Re: Problems with project from VS2003 in VS2005

Michael Dunn1-Mar-07 10:06

Michael Dunn

1-Mar-07 10:06

That's the one Smile | :)

--Mike--
Visual C++ MVP Cool | :cool:

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Ford, what's this fish doing in my ear?

Re: Problems with project from VS2003 in VS2005

James R. Twine1-Mar-07 6:24

James R. Twine

1-Mar-07 6:24

   Is this function being called exist in a LIB or a DLL?

   On older versions of VC++, a reference was really a pointer behind the scenes (it might still be), which is why you could pass pointer to something to a function that expected reference to something, like calling an extern "C" C++ function that took a reference from straight C code (there is no reference type in C). This kind of thing works in VC++ 6.0 (IIRC).

   You just might be seeing more strict type checking that let you get away with other stuff (see below).

   Actually, the type expected for the secondPart parameter is const char *, so you should declare that variable as:

const char *secondPart = NULL;  // Note - Always Initialize!

Peace!

Re: Problems with project from VS2003 in VS2005

Asdef Jaker1-Mar-07 6:47

Asdef Jaker

1-Mar-07 6:47

You are right - the function is in a DLL from older version of VC++

I've already tried casting, that worked:
General->ParsePath(parent, path, pathType, pathIsDir, (const char *&)secondPart);
but I'm not happy about it.

Your sugestion looks much nicer, but I have to test it yet.

Do you think, there will be some problems when using different versions of VC++?

Asdef Jaker
What part of "Thou shall not kill" don't you understand? GOD

Re: Problems with project from VS2003 in VS2005

James R. Twine1-Mar-07 7:05

James R. Twine

1-Mar-07 7:05

   The implementation of a reference in C++ is implementation-dependent. This means that the way it works in any C++ compiler suite can change at any time (e.g. download a VC service pack, and it might change), and may not be compatible between two different C++ platforms.

   If you need to support reference-like behavior in a DLL that may be used by other 3rd-party applications (which may NOT have been written using VC++), I would suggest using a pointer instead of a reference (change to const char ** instead of const char *&).

   I would advise that you change the type of the variable you are using as opposed to casting. Casting should be your last resort to getting things working, and is usually a sign that something is not quite right.

   Peace!

Re: Problems with project from VS2003 in VS2005

Asdef Jaker1-Mar-07 7:19

Asdef Jaker

1-Mar-07 7:19

Thank you for your insight!
I changed all occurences of the secondPart definition to const, but I ran into another problem: The code I work on changes the secondPart string after calling the ParsePath(..) method. This is prohibited, because the string is now defined as const... Sigh | :sigh:

If i understand the const char *secondPart = NULL; declaration corectly - it means changeable pointer to constant string - is that right? Do I need to make a copy if I need to change the secondPart string?

Asdef Jaker
What part of "Thou shall not kill" don't you understand? GOD

Re: Problems with project from VS2003 in VS2005

James R. Twine1-Mar-07 8:46

James R. Twine

1-Mar-07 8:46

No, it sounds like it is working correctly. const char * is a pointer to a constant char (a "string"), whereas a char const * is a constant pointer to a (non-const) "string".

const char *pPtrToConstChar = "First Const Const";
char* const pConstPtrToChar = "Second String";
 
pPtrToConstChar = "Second Const String";
// Allowed; the pointer can be changed to point somewhere else

strcpy( <code>pPtrToConstChar</code>, "Test" );
<code>// Fails; the data the pointer points to is constant and cannot be changed.</code>
 
<code>pConstPtrToChar</code> = "Third String";
<code>// Fails; the pointer is constant and cannot be reassigned to point somewher else.</code>

strcpy( pConstPtrToChar, "Test" ); 
//Allowed; the data the pointer points to is not constant and can be changed.

   Note that I am using static strings here, so copying into their memory is technically incorrect but I am trying to demonstrate pointer const-ness as opposed to data const-ness.

   The function is allowed to take a pointer to constant data as a reference, and change the pointer so that it points to other constant data.

   Peace!

std::string

LCI1-Mar-07 3:20

LCI

1-Mar-07 3:20

I am reading from a file after opening using this command

ReadFile(hFile,&strData, 300, &dwbytes, NULL); in a C++ dll

strData is defined as a std::string

say std::string test = strData;

After executing the above command, i get an error .. something about misaligned string. I am not sure what could be going on here. When i debug and watch the values i see strData as {???} but then when i drill down, i actually see the correct data read from the file, but it seems like something is wrong such that strData cannot be accessed

Re: std::string

toxcct1-Mar-07 3:27

toxcct

1-Mar-07 3:27

std::string is a class. you cannot pass it as a parameter when the function expects a C-style string (array of character).
please show the definition of ReadFile()

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