Re: DrawItem never called! - C / C++ / MFC Discussion Boards

ursus zeta6-Nov-02 11:48

6-Nov-02 11:48

Paul Watt,
Thank you, this is exactly what I was looking for. I had done some searching at the MSDN site, but could not find that specific information. What I did find was information about the build process and how Visual C++ scans and interprets the file identifiers and translation units.

who to get?

imran_rafique5-Nov-02 12:11

imran_rafique

5-Nov-02 12:11

i am running my service on a computer and i want to know wheather a system is in logoff or login state?
how to get its state?

r00d0034@yahoo.com

GetDlgCtrlID for ActiveX controls

Aaron Schaefer5-Nov-02 11:20

Aaron Schaefer

5-Nov-02 11:20

Anybody got any ideas here? I have an active X control on a form view, and I am trying to do the following, with less than impressive results:

hWnd hWndControl = GetDlgItem(IDC_ACTIVEXCONTROL);
UINT nID = GetDlgCtrlID(hWndControl);

nID is equal to 0. I had hoped it would be equal to IDC_ACTIVEXCONTROL.

A dollar for anyone that can make this work.

FindResouce problem

IGx895-Nov-02 11:03

IGx89

5-Nov-02 11:03

I'm trying to use FindResource like this:

<br />
// I have a bitmap resouce named IDB_LOGIN under the Bitmap directory<br />
hResInfo = FindResource(NULL, "IDB_LOGIN", "Bitmap");<br />

I've tried "BMP", "RT_BITMAP", and RT_BITMAP as the type, but it still always fails. What am I doing wrong?

Thanks!

Re: FindResouce problem

dabs5-Nov-02 11:14

dabs

5-Nov-02 11:14

Try

<br />
hResInfo = FindResource(NULL, MAKEINTRESOURCE( IDB_LOGIN ), RT_BITMAP );<br />

Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!

Re: FindResouce problem

IGx895-Nov-02 12:27

IGx89

5-Nov-02 12:27

Thanks, that works! Unfortunately, the OleLoadPicture in LoadFromBuffer in CPicture (www.codeproject.com/bitmap/cpicture.asp) fails Frown | :(

DrawItem never called!

Daniel Strigl5-Nov-02 10:46

Daniel Strigl

5-Nov-02 10:46

I have a subclassed CListBox class (the name is CMyListBox).

class CMyListBox : public CListBox
{
  ...
  virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);
  ...
};

The problem is that the overloaded virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct); member function of my class will never called!

How can I fix that?

(I am working with Embedded Visual C++ 3.0 + PocketPC / PocketPC 2002 + MFC)

Daniel Wink | ;)

---------------------------
Never change a running system!

Re: DrawItem never called!

dabs5-Nov-02 11:21

dabs

5-Nov-02 11:21

You should:

a) make sure the listbox in question has the ownerdraw checkbox checked

b) make sure your declaration of DrawItem looks exactly like the one in the baseclass.

If this does not help then I'm afraid I can't either Smile | :)

Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!

Re: DrawItem never called!

Daniel Strigl5-Nov-02 20:36

Daniel Strigl

5-Nov-02 20:36

The problem is that the same code does run perfectly under WinXP, only under CE (PocketPC / PocketPC 2002) the code doesn't run!

Daniel Wink | ;)

---------------------------
Never change a running system!

Re: DrawItem never called!

Jonas Larsson6-Nov-02 1:17

Jonas Larsson

6-Nov-02 1:17

From MSDN's WinCE pages:
"Windows CE does not support owner-drawn list boxes, so you cannot specify ODT_LISTBOX in the CtlType member of a DRAWITEMSTRUCT or a MEASUREITEMSTRUCT structure."

You should be able to use an ownerdraw CListCtrl though.

“Our solar system is Jupiter and a bunch of junk” - Charley Lineweaver 2002

Common Control and Microsoft Layer For Unicode

kasturirawat5-Nov-02 10:11

kasturirawat

5-Nov-02 10:11

I’m using Microsoft Layer For Unicode on 98. I’m not using any of CCM_Get/SETUNICODEFORMAT messages. Some of the common control as property sheet acts weired when I use IE 4. If I upgrade to IE 5, every things works as expected. I could not find any Microsoft documentation which says that I’ve to use IE 5, with UNICODe support. Is there any documentation on this?
I guess it is requirement to use IE 5 with UNICOWS, but I was hoping to find some doc to justify this

Thanks
Kasturi

Re: Common Control and Microsoft Layer For Unicode

Tim Smith5-Nov-02 10:53

Tim Smith

5-Nov-02 10:53

It would be best to ask this question on the MS newgroup for MSLU. Michka, the guy who wrote the DLL, is there and will answer any questions you have.

Tim Smith

I'm going to patent thought. I have yet to see any prior art.

CFileDialog

Anonymous5-Nov-02 9:45

Anonymous

5-Nov-02 9:45

Hi,

CFileDialog dlg(TRUE);
dlg.DoModal();

the above code usually pops up a file dialog WITHOUT the outlook bar at the left (which contains shotcuts to last documents, desktop, documents, my computer, and network).

But I experienced that this very same code can open the file dialog WITH the outlook bar at its left in certain cases.

Is there some rule I am not aware of? Could somebody please enlighten me.
Thanks
R.

Re: CFileDialog

Ravi Bhavnani5-Nov-02 10:16

Ravi Bhavnani

5-Nov-02 10:16

See Davide's excellent CFileDialogST[^] class for details. I now use his class exclusively.

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

How do I open a web browser?

Happy_Dog5-Nov-02 9:18

Happy_Dog

5-Nov-02 9:18

I have a small app that just needs to open the (preferably default) web browser. The biggest problem I see is that I need to set the options, like you can in JavaScript with window.open. It there a way of doing this inside my program? If not could I have a hidden instance of the browser that uses window.open?

Thanks,
Steve

Re: How do I open a web browser?

C^hris L^osinger5-Nov-02 10:07

C^hris L^osinger

5-Nov-02 10:07

if you run "about:blank" using your favorite system-command-executor (WinExec, spawn, etc.) it will launch the default browser.

-c

“losinger is a colorizing text edit control”
-- googlism

Smaller Animals Software

Re: How do I open a web browser?

Happy_Dog5-Nov-02 10:39

Happy_Dog

5-Nov-02 10:39

Yes but that gives me no control over the look of the browser, size, toolbars ect. Smile | :)

Re: How do I open a web browser?

C^hris L^osinger5-Nov-02 10:42

C^hris L^osinger

5-Nov-02 10:42

write a little HTML page that contians the JScript to set the things you need, then launch that page (again, using WinExec) ?

“losinger is a colorizing text edit control”
-- googlism

Smaller Animals Software

Re: How do I open a web browser?

Happy_Dog5-Nov-02 11:08

Happy_Dog

5-Nov-02 11:08

Well yea, I could do that. But then I would have another open window that I don't want. I found a soultion to another problem that will let me do it a different way so this is no longer needed. Thanks for your help.

Problems using ICDraw.

Redeemer-dk5-Nov-02 9:14

Redeemer-dk

5-Nov-02 9:14

My problem is that when i try to use ICDraw, nothing happens. I've done exactly what the MSDN says, but it's not working Frown | :(

Here's my code:

DWORD dw;
DWORD dwNumBuffers = 0;


ICDrawBegin(hVideo, ICDRAW_FULLSCREEN, NULL, NULL, NULL, 0, 0, 0, 0, &VideoInfo.bmiHeader, 0, 0, VideoInfo.bmiHeader.biWidth, VideoInfo.bmiHeader.biHeight, VideoHeader.dwRate, VideoHeader.dwScale);

avi.ReadNextVideoFrame(lpData, VideoInfo.bmiHeader.biWidth * VideoInfo.bmiHeader.biHeight * 24 / 8, VideoInfo.bmiHeader.biCompression);

ICGetBuffersWanted(hVideo, &dwNumBuffers);
		
for (dw = 0; dw < dwNumBuffers; dw++)
{
	ICDraw(hVideo, 0, (LPVOID)&VideoInfo.bmiHeader, lpData, VideoInfo.bmiHeader.biWidth * VideoInfo.bmiHeader.biHeight * 24 / 8, dw);
}

ICDrawStart(hVideo);
dw = 0;

for (int i = 1; i < (int)((float)VideoHeader.dwRate / VideoHeader.dwScale * 60); i++)
{
	avi.ReadNextVideoFrame(lpData, VideoInfo.bmiHeader.biWidth * VideoInfo.bmiHeader.biHeight * 24 / 8, VideoInfo.bmiHeader.biCompression);
	ICDraw(hVideo, 0, (LPVOID)&VideoInfo.bmiHeader, lpData, VideoInfo.bmiHeader.biWidth * VideoInfo.bmiHeader.biHeight * 24 / 8, dw);

}

ICDrawStop(hVideo);
ICDrawFlush(hVideo);
ICDrawEnd(hVideo);

The avi.ReadNextVideoFrame() is a function that reads the next videoframe from the avifile. I'm not sure i'm doing it right, i don't think the MSDN illustrates very clearly how to do it.

Thanks all!

-Rune Svendsen

delete question...

LukeV5-Nov-02 8:45

LukeV

5-Nov-02 8:45

Hi,

I get an error with this code when I try to delete the object (CWindowImpl)

LRESULT CWndNotify::OnTimer(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled)
{
switch( nTimer )
{
case ...:
{
break;
}

case ...:
{

KillTimer( TIMER_COLLAPSE );
delete this;
break;
}

...

I get this assertion error:

pThis->m_pCurrentMsg == &msg

I tried Detatch() and DestroyWindow() before delete but it doesn't help. How should I destroy the window? Confused | :confused:

Thanks!

---------------
Concentrating on Ideas
http://www.edovia.com

Re: delete question...

Dominik Reichl5-Nov-02 9:04

Dominik Reichl

5-Nov-02 9:04

Hello,

Use DestroyWindow and forget the "delete this". "Delete this" doesn't make any sense here.

Big Grin | :-D

-Dominik

Re: delete question...

LukeV5-Nov-02 9:08

LukeV

5-Nov-02 9:08

I works with DestroyWindow() but I still have one question: I created the window like this:

<br />
CNotifyWnd* pWnd = new CNotifyWnd();<br />

does DestroyWindow() will also get rid of my pointer or am I leaking memory here?

thanks!

---------------
Concentrating on Ideas
http://www.edovia.com

Re: delete question...

Dominik Reichl5-Nov-02 9:17

Dominik Reichl

5-Nov-02 9:17

In this case you need to delete the class...

delete pWnd;
pWnd = NULL;

First call DestroyWindow and then the code above. The code above automatically calls the class'es deconstructor.

Re: delete question...

dabs5-Nov-02 11:12

dabs

5-Nov-02 11:12

I'd suggest overriding OnFinalMessage( ) and do the delete this; there.

Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!

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