C / C++ / MFC Discussion Boards

Mike Nordell28-Jun-02 9:14

28-Jun-02 9:14

1:st - Your displayed code contains no code to GetDeviceCapabilities().
2:nd - Your code probably stamps on some memory it doesn't own.

As to how you should fix it; don't mess with memory or other stuff that doesn't belong to you.

Re: printer bins

pnpfriend1-Jul-02 3:16

pnpfriend

1-Jul-02 3:16

what do u mean by no code to GetDeviceCapabilities???
I don't know how to use it anyway. can you tell me how to get the printer bins and set it to cdc printer device??

Error: No Matching DLGINIT

ssirisha27-Jun-02 7:01

ssirisha

27-Jun-02 7:01

I have a dialog resource within a COM object and have added a thirdparty ActiveX control to the dialog box.

During execution, while loading the dialog resource I get the following error message..
"Dialog has OLE controls, but not matching DLGINIT resource"
I checked the .rc file and there is DLGINIT resource defined.

Any clue. Thanks

Re: Error: No Matching DLGINIT

Prem Kumar27-Jun-02 19:53

Prem Kumar

27-Jun-02 19:53

Hi,

Some times when u embed the ActiveX controls in a dialog
the Dialog editor writes information required for instantiating
the ActiveX control as a part of the DLGINIT.

In you case this is missing. Just try deleting the ActiveX control
in the Dialog Editor and then create it again.

Re: Error: No Matching DLGINIT

ssirisha28-Jun-02 1:40

ssirisha

28-Jun-02 1:40

I did delete/inserted the ActiveX control couple of times but same problem.

Re: Error: No Matching DLGINIT (Solution)

ssirisha28-Jun-02 2:14

ssirisha

28-Jun-02 2:14

I found the solution ..

http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;Q231591

Thanks for your time and effort.

MSN server connection

27-Jun-02 6:40

Hi!!

I ve created a client server based chat program and now i want to enhance it by adding the feature of connecting to MSN messenger service. There are few non-MS commercial applications available that connects to MSN server (like Trillian).

As such i require detail information about MSN messenger service protocol information etc. Where can i get these ????
Also if you know any open source messenger application program in C++ that connects to MSN/Yahoo servers, then please inform me so that i can see the actual implementation.
Thanks a lot in advance.

PetricMA

Re: MSN server connection

Bill Wilson27-Jun-02 9:40

Bill Wilson

27-Jun-02 9:40

type "MSN messenger service protocol" into google. You will get a ton of references.

Re: MSN server connection

27-Jun-02 11:08

Ive implemented last year for fun only an MSN client that connects to the server and then gets u the list of connected user in ur list without them noticing you, meaning that ure appearing offline.

This year i used a different way of doing stuff, i used the MSN object COM model, so i passed by the client itself in order to add some functionnality to my application

If ure interested email me at johnny_mkhael@hotmail.com and tell me what u need in details.

Papa
Murex Co.

Core API Application and manifest

S van Leent27-Jun-02 6:33

S van Leent

27-Jun-02 6:33

I am trying to make a core API app. It seems to pay off, but when I use a *.exe.manifest file, the MessageBox function does not work (IE: I hear a sound, but there is no visual Frown | :(

. Is there someone who knows the problem?

thanks in advance,
Sjoerd van Leent

LPCSTR Dutch = "Double Dutch Smile | :)

How to write burning program for CDR!

sunghj27-Jun-02 6:07

sunghj

27-Jun-02 6:07

How to write burning program for CDR!

Re: How to write burning program for CDR!

Christian Graus27-Jun-02 13:32

Christian Graus

27-Jun-02 13:32

There are commercial SDK's available. I've seen this question asked often and that is the only answer I have ever seen.

Christian

I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002

Half the reason people switch away from VB is to find out what actually goes on.. and then like me they find out that they weren't quite as good as they thought - they've been nannied. - Alex, 13 June 2002

Re: How to write burning program for CDR!

Mike Nordell28-Jun-02 9:16

Mike Nordell

28-Jun-02 9:16

Google for "CDRecord".

Getting the Device Context

JennyP27-Jun-02 6:03

JennyP

27-Jun-02 6:03

Hello,

My program seems to be getting different device contexts in different functions (results of GetTextExtent differs sometimes for same window). I would like to ensure that the DCs are the same. Here are the two code fragments. Any suggestions on making sure that OnBeginlabeledit has the same DC as OnCustomdrawMyList? Thanks!

void CGoalsListView::OnCustomdrawMyList (NMHDR* pNMHDR, LRESULT* pResult)
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<nmlvcustomdraw*>( pNMHDR );

CDC* pDC = CDC::FromHandle ( pLVCD->nmcd.hdc );

...

void CGoalsListView::OnBeginlabeledit(NMHDR* pNMHDR, LRESULT* pResult)
{
NMLVDISPINFO* pDispInfo=(NMLVDISPINFO*)pNMHDR;

*pResult=1;
CDC* pDC = GetDC();

Jon Paul

Re: Getting the Device Context

Roger Allen27-Jun-02 6:20

Roger Allen

27-Jun-02 6:20

The difference is probably due to a pre setup DC being passed in in custom draw. It will have the correct font setup for it, while in the GetDC() version you will need to get the font from the control and apply it to your DC before measuring the text.

Roger Allen
Sonork 100.10016

If I had a quote, it would be a very good one.

Re: Getting the Device Context

JennyP27-Jun-02 6:30

JennyP

27-Jun-02 6:30

Hi Roger,

Thanks for the reply.

I found that the custom draw DC is the 'correct' one that gives proper proportions, while the other is the 'bad' one.

How do I get the DC from the control? I thought I was already doing it by its position in the code? I have tried

CDC* pDC = CGoalsListView::GetDC(); // with resolution operator

but that didn't work. I've tried to extract it from the

void CGoalsListView::OnBeginlabeledit(NMHDR* pNMHDR, LRESULT* pResult)

header, but I was unable to find it.

Any suggestions? Thanks! JP

Jon Paul

Re: Getting the Device Context

Roger Allen27-Jun-02 6:37

Roger Allen

27-Jun-02 6:37

What you had was almost correct I think.

void CGoalsListView::OnBeginlabeledit(NMHDR* pNMHDR, LRESULT* pResult) 
{
NMLVDISPINFO* pDispInfo=(NMLVDISPINFO*)pNMHDR;

*pResult=1;
CDC* pDC = GetDC();

pDC->SaveDC() ;
CFont *pFont = GetFont() ;
if (pFont != NULL)// you can get NULL if no font has been set for the control
pDC->SelectObject(pFont) ;

...

pDC->RestoreDC(-1) ;
pDC->ReleaseDC() ;
}

Roger Allen
Sonork 100.10016

If I had a quote, it would be a very good one.

Re: Getting the Device Context

JennyP27-Jun-02 7:13

JennyP

27-Jun-02 7:13

Wow! It seems to work!--Thanks! ... However, I'm not sure why. Here's the full function (to position an CEdit box on top of the List Column--except for col==0 where it positions it on top of the tabbed text).

Perhaps something between GetDC() and pDC->GetTextExtent sets up the new DC? Or perhaps the GetFont() is necessary, but I thought that GetDC() gets the font of the current DC also. Hmm... Thanks again! JP

void CGoalsListView::OnBeginlabeledit(NMHDR* pNMHDR, LRESULT* pResult)
{
NMLVDISPINFO* pDispInfo=(NMLVDISPINFO*)pNMHDR;

*pResult=1;
CDC* pDC = CGoalsListView::GetDC();

pDC->SaveDC();
CFont *pFont = GetFont();
if (pFont != NULL)// you can get NULL if no font has been set for the control
pDC->SelectObject(pFont) ;

CPoint posMouse;
GetCursorPos(&posMouse);
ScreenToClient(&posMouse);

LV_COLUMN lvc;
lvc.mask=LVCF_WIDTH;

CRect rcItem;
GetListCtrl().GetItemRect(pDispInfo->item.iItem,rcItem,LVIR_LABEL);

if(rcItem.PtInRect(posMouse)) {
CString tIndent = GetDocument()->GetGoalArray()->GetIndentText(pDispInfo->item.iItem);
int npixIndent = pDC->GetTextExtent(tIndent + GLV_OFFSET).cx;
TRACE2("BegLabelEdit: string='%s', npixIndent=%d\n", tIndent, npixIndent);
m_LVEdit.m_x=rcItem.left + npixIndent;
lvc.cx = rcItem.Width() - npixIndent;
m_nEdit=0;
}

int nCol=1;
while(m_nEdit==-1 && GetListCtrl().GetColumn(nCol,&lvc)) {
rcItem.left=rcItem.right;
rcItem.right+=lvc.cx;

if(rcItem.PtInRect(posMouse)) {
m_nEdit=nCol;
m_LVEdit.m_x=rcItem.left;
TRACE1("BegLabelEdit: rcItem.left=%d\n", rcItem.left);
}

nCol++;
}

if(m_nEdit==-1)
return;

HWND hWnd=(HWND)SendMessage(LVM_GETEDITCONTROL);
ASSERT(hWnd!=NULL);
VERIFY(m_LVEdit.SubclassWindow(hWnd));

m_LVEdit.m_y=rcItem.top-1;
m_LVEdit.LimitText(50);

m_LVEdit.SetWindowText(GetDocument()->GetGoalArray()->GetItemColText(pDispInfo->item.iItem , m_nEdit));

m_LVEdit.m_cx = lvc.cx;
m_LVEdit.m_cy = rcItem.Height();

ReleaseDC(pDC);

*pResult=0;
}

Jon Paul

Simple String Conversion

Ryan B.27-Jun-02 5:05

Ryan B.

27-Jun-02 5:05

Im doing a simple non-MFC application.. I need to convert an ASCII string into an OLECHAR array. I want to pass my string into a SysAllocString(); function call like this:

<br />
char string[] = "ASCII STRING";<br />
(t+f)->str = SysAllocString(string);<br />

Of course this doesnt work because, SysAllocString is expecting an OLECHAR FAR*. The function works fine when I do:

<br />
(t+f)->str = SysAllocString(OLESTR("Test String"));<br />

Im actually passing in an array of UDTypes with variable length strings from VB and populating each element of the array / structure.

Im not very familiar with this whole ATL/COM string stuff.. =) Ill be honest, Im a C programmer, so Im out of my element. What can I do.. Please Help.

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Simple String Conversion

Le centriste27-Jun-02 5:18

Le centriste

27-Jun-02 5:18

USES_CONVERSION;
char string[] = "ASCII STRING";
(t+f)->str = SysAllocString(A2CW(string));

This should do the trick. Make sure to include atlbase.h

Michel

It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.

- TreeBeard

Re: Simple String Conversion

Ryan B.27-Jun-02 5:36

Ryan B.

27-Jun-02 5:36

Thank you so much..
(i had tried to use the a2ole macro before, but could noit find information on which library it was in, or how to implement it..

THANK YOU ....

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Simple String Conversion

Le centriste27-Jun-02 7:36

Le centriste

27-Jun-02 7:36

You're welcomed. Btw, where do u live in Canada? Me, I live and work in Hull, near Ottawa.

Michel

It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.

- TreeBeard

How do I find the task bar color

Rama Krishna Vavilala27-Jun-02 4:42

Rama Krishna Vavilala

27-Jun-02 4:42

Any XP theme gurus please help me to know how to find the task bar color in the current theme? I don't even know where to look at Cry | :((

I have never wasted time worrying about such insignificant things. Keep your eye upon the donut and NOT upon the hole. - Bill Sergio about posting in the right forum. The Lounge - June 23, 2002

Re: How do I find the task bar color

Scott H. Settlemier27-Jun-02 7:43

Scott H. Settlemier

27-Jun-02 7:43

Checkout the SystemParametersInfo and the GetSysColor
functions. They control how windows ui stuff works and looks.

Self Termination

27-Jun-02 4:34

Is there a way to self terminate an application after a period of time.

Thanks

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