C / C++ / MFC Discussion Boards

RChin26-Sep-02 4:19

26-Sep-02 4:19

Just a quick Q.
Does anyone know if there are any problems with working with multiple instances of VC++?
Are there any known global dependencies that might break one instance if, for instance, I start to debug?

Re: Multiple VS

jmkhael26-Sep-02 4:23

jmkhael

26-Sep-02 4:23

Not to me

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Multiple VS

Carlos Antollini26-Sep-02 4:30

Carlos Antollini

26-Sep-02 4:30

Also, not for me...
My experience include several sessions of VS6 and VS.NET at the same time...
Cheers

Carlos Antollini.
Sonork ID 100.10529 cantollini

Re: Multiple VS

User 665826-Sep-02 5:26

User 6658

26-Sep-02 5:26

Not for me as well Smile | :)

I often use multiple instances of VC++ and had not experienced any odd behavior so far

regards

modified 12-Sep-18 21:01pm.

Re: Multiple VS

RChin26-Sep-02 7:56

RChin

26-Sep-02 7:56

thanks for the responses.

Re: Multiple VS

Todd Smith26-Sep-02 8:48

Todd Smith

26-Sep-02 8:48

I pretty much use multiple instances all the time.

Todd Smith

CompareItem in listbox

hajo26-Sep-02 4:21

hajo

26-Sep-02 4:21

I want to sort a change the sorting of a listbox.I tryed it as "virtual int CompareItem....." and as "afx_msg int CompareItem...." but these functions are never called Frown | :(

and the list is sorted normally. What is the problem?
(except my english)

Re: CompareItem in listbox

jmkhael26-Sep-02 4:22

jmkhael

26-Sep-02 4:22

MSDN:
Called by the framework to determine the relative position of a new item in a sorted owner-draw list box. By default, this member function does nothing. If you create an owner-draw list box with the LBS_SORT style, you must override this member function to assist the framework in sorting new items added to the list box.

Short:
Have u set LBS_SORT style for the listbox??

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: CompareItem in listbox

Tomasz Sowinski26-Sep-02 4:26

Tomasz Sowinski

26-Sep-02 4:26

Only owner-draw listboxes use this message. If you have plain listbox and want to use non-standard sorting, then you'll have to sort yourself before adding items.

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

Re: CompareItem in listbox

hajo26-Sep-02 7:06

hajo

26-Sep-02 7:06

Listbox is owner-draw fixed and LBS_SORT is set. Other functions (DrawItem, MeasureItem) are working well. Sorting work, but only standard not my way

Re: CompareItem in listbox

Tomasz Sowinski26-Sep-02 7:16

Tomasz Sowinski

26-Sep-02 7:16

I guess you have LBS_HASSTRINGS style set. With this bit enabled, you won't get WM_COMPAREITEM, because listbox assumes that sorting means string sorting.

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

Re: CompareItem in listbox

hajo26-Sep-02 7:07

hajo

26-Sep-02 7:07

Listbox is owner-draw fixed and LBS_SORT is set. Other functions (DrawItem, MeasureItem) are working well. Sorting work, but only standard not my way

Text Size in a CStatic Control

David Viggiano26-Sep-02 4:17

David Viggiano

26-Sep-02 4:17

Does anyone know of a way to get the dialog units for the text in a CStatic control? I'm trying to dynamically resize some controls and what MSDN says to do seems to always return 25-50% too big.

Here is what I am trying:

CDC *pDC;
CSize cStringSize;

pDC = m_MyStaticControl.GetWindowDC();
cStringSize = pDC->GetTextExtent ("Some string I want the size of...");

I've also tried DrawText(...) but that returns the same size.

Thanks for the help,
David

Re: Text Size in a CStatic Control

Tomasz Sowinski26-Sep-02 4:47

Tomasz Sowinski

26-Sep-02 4:47

You need to select the right font into DC first. Default font is larger than the one used by your control.

As a little OT note, you should also use CWindowDC or CClientDC instead of GetWindowDC call.

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

Re: Text Size in a CStatic Control

David Viggiano26-Sep-02 5:51

David Viggiano

26-Sep-02 5:51

Tomasz,

Great! Thanks for the help, that did the trick. One more question, how do I figure out what font the CStatic is going to use? I ended creating a different font first (looks better anyway).

Thanks again,
David

Re: Text Size in a CStatic Control

Tomasz Sowinski26-Sep-02 6:13

Tomasz Sowinski

26-Sep-02 6:13

CWnd::GetFont does the trick.

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

Re: Text Size in a CStatic Control

David Viggiano26-Sep-02 6:23

David Viggiano

26-Sep-02 6:23

Simple, thanks yet again.

manipulating arrays

M.Leary26-Sep-02 4:07

M.Leary

26-Sep-02 4:07

I need to manipulate an array so that the first row is the last second row is next to last and so on with a 2d array.
do I need to make a tempArray or can it be done without creating another array? S Confused | :confused:

ome code to help get started too would be helpful.

Re: manipulating arrays

Daniel Ferguson26-Sep-02 5:09

Daniel Ferguson

26-Sep-02 5:09

If you want to read the array in reverse order use code similar to this:

for (int i = MAX - 1; i > -1; i--) // start at end, go to beginning
{
   for (int j = 0; j < MAX; j++)
   {
      // do something with the array here..
   }
}

That way, the last row will be read first.

_____________________
"So in the interests of survival, they trained themselves to be agreeing machines instead of thinking machines. All their minds had to do was to discover what other people were thinking, and then they thought that, too."
Breakfast of Champions, Kurt Vonnegut

Re: manipulating arrays

M.Leary26-Sep-02 5:56

M.Leary

26-Sep-02 5:56

what i need to do is not only read it backwards but change the array so that it is too.

are strings in string table in unicode if _UNICODE is defined

tomc26-Sep-02 4:05

tomc

26-Sep-02 4:05

If I have something like IDS_STRING1's Caption "Example"
and define _UNICODE. Then do csString.LoadString(IDS_STRING1),
is csString a unicode string? (so dont' have to do _T)

Re: are strings in string table in unicode if _UNICODE is defined

Tomasz Sowinski26-Sep-02 4:11

Tomasz Sowinski

26-Sep-02 4:11

CString::LoadString calls ::LoadString internally - you'll get Unicode string in Unicode build of your app.

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

Re: are strings in string table in unicode if _UNICODE is defined

Steve S26-Sep-02 22:24

Steve S

26-Sep-02 22:24

As Tomasz says, the CString you get back will be appropriate for your compile time setting.

Strings in the string table are ALWAYS UNICODE, but if you use ::LoadStringA to retrieve them, they come back as ANSI/MBCS, while ::LoadStringW doesn't do the conversion.

We use ::LoadString, which is mapped to one or the other, so it doesn't matter.

You don't need to use _T on a CString that is set using LoadString anyway, you only need that on string (or character) literals so that the compiler can make them wide when it needs to.

Steve S
[This signature space available for rent]

CFile question

ns26-Sep-02 4:04

26-Sep-02 4:04

		   char* a = new char [100+1];
		           a =0;

                           cFile.Read(a,100);
                           a[100] = 0;

                           AfxMessageBox(a);

                            cFile.Close();
	}
	catch(CFileException e)
	{AfxMessageBox("prob");}




}

I'm trying to see what could make CFile:Read throw an exception. I tried the folowing but got a debug assert when I expected it to go into the catch...I cant imagine what else could make Read throw an execption..

Thanks,
ns

Re: CFile question

Tomasz Sowinski26-Sep-02 4:08

Tomasz Sowinski

26-Sep-02 4:08

Step into cFile.Read(a, 100); line. Put the breakpoint there, and when it's hit, press F11.

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

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