C / C++ / MFC

Lost handle to modeless CDialogBar

21-Apr-04 2:49

ilostmyid2 wrote:
but what if i have to change some parts of them?

While it is possible (I've never known anyone to do it), it's certainly not advisable.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Krugger40421-Apr-04 1:42

Krugger404

21-Apr-04 1:42

Hi all;
I am currently buidling an SDI application. This application has a CDialogBar (well, some sort of. The actual class used is derived from CDialogBar). The problem is that i have some list_controls which need to be updated and i need the dialog handle. Since the CDialogBar is modeless, the handle is lost and i get an "enormous" assertion error each time i try to add or remove items to the list_control. Can somebody please help me on this.
I badly need it.

Thank you

Krugger

CRichEditCtrl derived class problems

Dave_Say21-Apr-04 1:37

Dave_Say

21-Apr-04 1:37

We have derived our own class from the MFC CRichEditCtrl, in order to implement various streaming functions as well as providing a context menu for cut,copy and paste. This derived class simply inherits from CRichEditCtrl. This all worked fine under NT however we are now porting to XP and have found that cut and copy no longer work, paste is fine. This is the case if you use ctrl+c or the context menu. The code we implemented behind the context menu simply called the rich edits own functions copy() and cut(). I can get the context menu copy to work if I use :
HANDLE hMemory;\\Contains our text string
OpenClipboard();
EmptyClipboard();
HANDLE hData = SetClipboardData(CF_TEXT,hMemory);

However ctrl+c still doesn't work. Cut (ctrl+x) appears to remove the selcted text but it is not put on the clipboard. If I change my control to be simply a CRichEditCtrl, ctrl+c and ctrl+x both work. Why was this ok for NT but not XP? Any help would be appreciated.

Thanks.

Dave.

Visual form designer for c++

Gasanov Tagir21-Apr-04 1:20

Gasanov Tagir

21-Apr-04 1:20

Hi all;
Is there in Visual Studio .Net visual form designer for c++, and how to use one?

Thanks

Re: Visual form designer for c++

Kevin McFarlane21-Apr-04 2:06

Kevin McFarlane

21-Apr-04 2:06

In VS .NET 2003 there is a form designer for the Windows Forms widgets. But there's not a RAD environment for unmanaged (i.e., non-.NET widgets).

Kevin

File IO

vikramlinux21-Apr-04 1:15

vikramlinux

21-Apr-04 1:15

Hi friends,
I want to open/use a file. But I dont know wheather that ffile is accessed bu somebody else also.So I have to wait until that IO finishes.How do I achieve that? I am on W2K.

VikramS

David Crow21-Apr-04 2:40

21-Apr-04 2:40

Create a worker thread, and give it access to a file handle. In that thread, create a loop that tries to open the file, and sleeps for a few seconds with each pass. When the file is successfully opened, end the thread. Now the primary thread has an open file handle to operate on.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

vikramlinux21-Apr-04 17:41

vikramlinux

21-Apr-04 17:41

Is tat is only way. I meant is there any API exists which will notify me for File IO?

David Crow22-Apr-04 2:08

22-Apr-04 2:08

vikrams wrote:
...is there any API exists which will notify me for File IO?

None that I know of. There are ways of being notified that a file/folder is being changed, but you'd still have to periodically poll to check when those operations are actually finished.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Accessing Webbrowser control in view class from TreeControl in another class

vikramlinux22-Apr-04 2:49

vikramlinux

22-Apr-04 2:49

Okey. Thanx a lot for help.

Krugger40421-Apr-04 1:10

Krugger404

21-Apr-04 1:10

Hi all;
I am developing an SDI application which consists of a CDialogBar. On the bar, i have a tree control displaying some data. I also have a webbrowser control in the View. I need to display an HTML page in the webbrowser control according to the selected tree child clicked by the user. Can somebody, please help me, to access the webbrowser control from my TreeControl.

Thank you

Krugge

SkinMagic Problem integrating in Visual C++ project

Krugger40421-Apr-04 1:08

Krugger404

21-Apr-04 1:08

Hi all;
I have downloaded Skin Magic in order to build custom skins for my application. Everything works fine and i have exported the .h file associated with my skin. The problem is now, "how will i include the skin in my application?".

Can somebody please help, i'm pretty at lost with this issue.

Thanks

Krugger

string

macmac3820-Apr-04 23:37

20-Apr-04 23:37

Hello,

This arrives at my serial port:

924.09,-4.06,676.26,0.156488,-0.653856,-0.714853,-0.192273

<br />
CString nx;<br />
<br />
	 while(port.Read(cReceivedChar, 1 , overlapped, &dwBytesRead)) <br />
	  {<br />
	    <br />
		nx += cReceivedChar[0];<br />
	    	SetDlgItemText(IDC_SHIFT_X,("%c", nx));<br />
          }<br />

but my dialog only shows 06,676 ?? Why?

Thanks, Mark

jmkhael21-Apr-04 0:10

jmkhael

21-Apr-04 0:10

What is in nx?

Try a MessageBox call

and why not a SetDlgItemText(IDC_SHIFT_X,(LPCSTR)nx);

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

macmac3821-Apr-04 1:20

21-Apr-04 1:20

Hello,

nx contains nothing when i trace it.

cReceivedChar[0] contains confused values from the string..

I think the whole procedure must be rewied

Thanks, Mark

David Crow21-Apr-04 2:44

21-Apr-04 2:44

CString nx;
char cReceivedChar;

while(port.Read(&cReceivedChar, 1, overlapped, &dwBytesRead)) 
    nx += cReceivedChar;

SetDlgItemText(IDC_SHIFT_X, nx);

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

macmac3821-Apr-04 22:31

21-Apr-04 22:31

char cReceivedChar; is not working (other type expected)

<br />
BOOL CSerialPort::Read(void* lpBuf, DWORD dwCount, OVERLAPPED& overlapped, DWORD* pBytesRead)<br />

Thanks, Mark

David Crow22-Apr-04 2:04

22-Apr-04 2:04

How are you calling the Read() method?

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

macmac3822-Apr-04 2:13

22-Apr-04 2:13

while(port.Read(cReceivedChar, 1 , overlapped, &dwBytesRead))

Thanks, Mark

David Crow22-Apr-04 2:15

22-Apr-04 2:15

The first parameter is supposed to be a pointer.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

macmac3822-Apr-04 2:32

22-Apr-04 2:32

<br />
<br />
char *cReceivedChar;<br />
<br />
while(port.Read(cReceivedChar, 1, overlapped, &dwBytesRead))

Thanks, Mark

David Crow22-Apr-04 2:52

22-Apr-04 2:52

But then you'd have to allocate one byte of memory from the heap (i.e., cReceivedChar = new char). Why not just use this instead:

char cReceivedChar;
while(port.Read(&cReceivedChar, 1, overlapped, &dwBytesRead)) 
    ...

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

macmac3823-Apr-04 2:26

23-Apr-04 2:26

yep, it seems to be better to use a reference.

with this procedure my string output is only "0.1922"

remember incoming:

924.09,-4.06,676.26,0.156488,-0.653856,-0.714853,-0.192273

It looks like that the first values running through the digits in the dialog..mmh?? Is this so complicate to give out the full string?

Thanks, Mark

David Crow23-Apr-04 3:35