BSCMAKE crashing - C / C++ / MFC Discussion Boards

rrrado30-Jul-03 4:52

30-Jul-03 4:52

Thank you for tip,
but I'd like to have more universal solution,
wchich would use DiectShow.
Which would allow me to get info about any movie, if i have installed codec for it, lide avi, divx, mpeg, etc.
But I'm lazy to study whole Direct Show stuff for this

rrrado

Re: Get movie length

Ted Ferenc30-Jul-03 0:09

Ted Ferenc

30-Jul-03 0:09

Instead you could use the AVI functions and use AVIStreamLengthTime

If I have seen further it is by standing on the shoulders of Giants. - Isaac Newton 1676

Re: Get movie length

rrrado30-Jul-03 4:51

rrrado

30-Jul-03 4:51

rrrado

Splitter Resizing

super29-Jul-03 21:15

super

29-Jul-03 21:15

In my application i have a frame with three views seperated by Splitterwindow..
My problem is that when i start the application,the frame should be in maximised state and we should not be abe to resizize both the frame and splitter window....
So any idea....

cheers,
Super
------------------------------------------
Too much of good is bad,mix some evil in it

Re: Splitter Resizing

Rage29-Jul-03 21:34

Rage

29-Jul-03 21:34

To set the frame maximizde, override PreCreateWindow(), and add SW_SHOWMAXMIZED to the style component of the cs structure.

~RaGE();

Re: Splitter Resizing

jhwurmbach29-Jul-03 21:56

jhwurmbach

29-Jul-03 21:56

super wrote:
[...]when i start the application,the frame should be in maximised state[...]

void CMyView::OnInitialUpdate()
{
  Cview::OnInitialUpdate();  //call base class
  //Maximize Parent Frame Window
  GetParentFrame()->ShowWindow( SW_SHOWMAXIMIZED );
}

or in the Frame class:

void CMaxiFrame::ActivateFrame(int CmdShow)
{
  if (m_bOnce)
  {
    m_bOnce = false;
    nCmdShow = SW_SHOWMAXIMIZED; //Maximize this frame
  }
  CMDIChildWnd::ActivateFrame(nCmdShow);  //call base class
}

and initialize a bool m_bOnce to true in the constructor of CMaxiFrame.

super wrote:
[...]should not be able to resize the frame[...]

BOOL CMyFrame::PreCreateWindow(CREATESTRUCT& cs)
{
  //Make the frame non resizable
  cs.style &= ~WS_THICKFRAME;
  //Optionally remove the 'maximize' button from the top right
  cs.style &= ~WM_MAXIMIZEBOX;
  return CMDIChildWnd::PreCreateWindow(cs);
}

super wrote:
[...]we should not be able to resize the splitter window[...]

Here, the trick is that we do not let CSplitterWnd see anything that could initiate a splitter drag:
In CMySplitter::OnLButtonDown() call CWnd::OnLButtonDown() instead of CSplitterWnd.
In CMySplitter::OnMouseMove() call CWnd::OnMouseMove() instead of CSplitterWnd.
In CMySplitter::OnSetCursor() call CWnd::OnOnSetCursor() instead of CSplitterWnd.

My opinions may have changed, but not the fact that I am right.

Re: Splitter Resizing

super30-Jul-03 18:37

super

30-Jul-03 18:37

Thanxs for the help.....
All issues has been sorted.....

cheers,
Super
------------------------------------------
Too much of good is bad,mix some evil in it

BSCMAKE crashing

rrrado29-Jul-03 21:12

rrrado

29-Jul-03 21:12

After a long time of developing my project (Win 98 + VC++ 6.0 + service pack 3 i think)
compilation suddenly started to crash every time it is creating browse info.
It displays 'Illegal operation' dialog box for bscmake.exe:

BSCMAKE caused an invalid page fault in
module BSCMAKE.EXE at 0177:0040a449.

I tried to clean whole project, including .opt and .clw, restarted Win and build all again, but bscmake is crashing all the time.
Any Idea what can be wrong ? Unsure | :~

Thanks !

rrrado

Re: BSCMAKE crashing

Franz Klein29-Jul-03 21:33

Franz Klein

29-Jul-03 21:33

I don't know what the problem may be but try upgrading to the latest SP which is either 5 or 6. I can't remember which it is.

Smile | :)

Re: BSCMAKE crashing

rrrado29-Jul-03 21:46

rrrado

29-Jul-03 21:46

Oh, i was wrng, i have SP 5 already, i'm gonna look if there is newer version.
Thanks

rrrado

program to be a NT service and minimise to a system tray icon upon startup

nexus8429-Jul-03 21:04

nexus84

29-Jul-03 21:04

I want to make my server program to start everytime i starts the computer. I would like to make it a service.
and upon startup I want the program to show as a systray icon only. When I click on the icon then the command window shows up.

I have a problem because my program is jsut command prompt type of program, not those gui types. So how can I get the window callback proc.

I need help..

Re: program to be a NT service and minimise to a system tray icon upon startup

Frank K29-Jul-03 22:17

Frank K

29-Jul-03 22:17

Hi,

first look at this

MSDN:Writing a Service Program's main Function

second, systray icon
look at following structur and function
struct NOTIFYICONDATA
Shell_NotifyIcon(...)

Regards
Frank

Re: program to be a NT service and minimise to a system tray icon upon startup

Mike Dimmick30-Jul-03 2:53

Mike Dimmick

30-Jul-03 2:53

Services should not have a user interface. If you need a user interface to control the service, it should be implemented as a separate process and communicate with the service via named pipes or some other communications channel.

There was a security hole (although I believe it's fixed now) where you could send a WM_TIMER message to a service's window in order to elevate your privileges.

Re: program to be a NT service and minimise to a system tray icon upon startup

Anonymous30-Jul-03 5:36

Anonymous

30-Jul-03 5:36

now i could create the systray icon. but i can't get those event when i click on it.

GDI+ BMP conversion

Ajesh kumar29-Jul-03 20:16

Ajesh kumar

29-Jul-03 20:16

Hi all,
I want to Compress the data of BMP in RLE format Using GDI+.
I have tried the Save methode of Bitmap class with giving the EncoderParameters. But didn't work Cry | :((

While enumerating Encoder parameters for bmp codec (SDK sample), I am not getting the values. Does GDI+ not supporting that or I have to upgrade my codec? Confused | :confused:

My machine is XP and have installed latest Platform SDK.

Thanks in advance
Ajesh

Memory leaks eliminating

El'Cachubrey29-Jul-03 20:06

El'Cachubrey

29-Jul-03 20:06

Hi all
Where i can download an application(free is desirable) what can to help determine memory leaks in my application, i use VC6.0 and
Windows 98 but VC enviroment dont catch some one.Because of when i launch my application in other computer under WinNT
i see in debuger what memory running out.
Thanks
Sorry for bad eanglish

Re: Memory leaks eliminating

Joe Woodbury29-Jul-03 21:58

Joe Woodbury

29-Jul-03 21:58

The very best program to use is BoundsChecker (http://www.compuware.com/products/devpartner/bounds.htm[^]). Unfortunately, it isn't free. I've tried various less expensive and freebies but all were terrible so I had no reason to remember their names.

Re: Memory leaks eliminating

Andrew Walker29-Jul-03 22:43

Andrew Walker

29-Jul-03 22:43

The guys on www.flipcode.com swear by Paul Nettle's memory manager. If you've got any doubts read some of the testimonials and thankyou's in the thread attached to the project.

It's not something I've needed to use myself, but if game programmers (especially console game programmers) who are severly limited on system resources think it's good then I'm guessing it is.

It also has the benefit of being free.

http://www.flipcode.com/cgi-bin/msg.cgi?showThread=12September2000-PresentingAMemoryManager&forum=askmid&id=-1[^]

If you can keep you head when all about you
Are losing theirs and blaming it on you;
If you can dream - and not make dreams your master;
If you can think - and not make thoughts you aim;
Yours is the Earth and everything that's in it.

Rudyard Kipling

Re: Memory leaks eliminating

LittleYellowBird30-Jul-03 3:13

LittleYellowBird

30-Jul-03 3:13

Hi,

When I had a memory leak I tried GlowCode. I found the problem in a matter of minutes, its easy to use and worked really well for me.

They do a free trial for 21 days, you can download it from here I believe....

http://www.glowcode.com/eval.htm

Cheers,

Ali

Serial Communication Write/Read using events

Member 42422129-Jul-03 19:56

Member 424221

29-Jul-03 19:56

Hi,
I am writing a serial application to communicate with an external device using RS-232. Requirement is to Write to the external device continuously and read from the device continuously. I have created a thread that performs Read based on the event EV_RXCHAR. On receiving a character i would store it in my local buffer for processing.
I have implemented the write using a 1 millisecond timer in the same thread as read.
The problem is to make this application write and read based on events.
Is it logical to put this write function in a separate thread and will my application be still able to receive Read events?
Please suggest me as to what to be done.

Regards,
Siva

how to print a bitmap from a view?

sherryfa29-Jul-03 19:22

sherryfa

29-Jul-03 19:22

i've load and displayed a bitmap in a view using StretchBlt. it succeed.and now, how can i print it out on paper? i really got totally blank how to start it. i can't find any samples on printing bitmap from msdn library. can anybody please tell me where i can find related codes that i can refer to. or maybe steps on how to do it. thank you

Re: how to print a bitmap from a view?

Frank K29-Jul-03 19:59

Frank K

29-Jul-03 19:59

Hi,

a little example

PRINTDLG pd;
DOCINFO di;
int iError;
float fx, fy;
float fPixXWnd, fPixYWnd, fPixXPrint, fPixYPrint;
float fScaleX, fScaleY;
HDC ScreenHdc;

// Initialize the PRINTDLG structure.
memset(&pd, 0, sizeof(PRINTDLG));
pd.lStructSize = sizeof(PRINTDLG);
pd.lpfnPrintHook = NULL;
pd.lpfnSetupHook = NULL;
pd.Flags = /*PD_RETURNDEFAULT |*/ PD_RETURNDC;

//open the Printdialog and get a HDC for the printer
if(PrintDlg(&pd))
{
memset( &di, 0, sizeof(DOCINFO) );
di.cbSize = sizeof(DOCINFO);
di.lpszDocName = "DocName";
di.lpszOutput = (LPTSTR) NULL;

// Begin a print job by calling the StartDoc function.
iError = StartDoc(pd.hDC, &di);
if (iError == SP_ERROR)
{
ASSERT(0);
}

// Inform the driver that the application is about to begin sending data.
iError = StartPage(pd.hDC);
if (iError <= 0)
{
ASSERT(0);
}

//Get the Screen-resolution(1)
ScreenHdc = ::GetDC(NULL);
fPixXWnd = ::GetDeviceCaps(ScreenHdc, LOGPIXELSX);
fPixYWnd = ::GetDeviceCaps(ScreenHdc, LOGPIXELSY);
::ReleaseDC(NULL, ScreenHdc);

//...or get the Screen-resolution(2), not tested
fPixXWnd = ::GetSystemMetrics(SM_CXFULLSCREEN);
fPixYWnd = ::GetSystemMetrics(SM_CYFULLSCREEN);

//Get the Printer-resolution
fPixXPrint = (float)::GetDeviceCaps(pd.hDC, LOGPIXELSX);
fPixYPrint = (float)::GetDeviceCaps(pd.hDC, LOGPIXELSY);

//the alignment for your window-coordinate
fScaleX = fPixXPrint / fPixXWnd;
fScaleY = fPixYPrint / fPixYWnd;

....
e.g. you draw your Bitmap to your view with
StretchBlt(hdcWnd, 10, 10, 100, 100, hdcBmp, 0, 0, 50, 50, SRCCOPY);

now write the following for your Printer
StretchBlt(hdcPrint, 10*fScaleX, 10*fScaleY, 100*fScaleX, 100*fScaleY, hdcBmp, 0, 0, 50, 50, SRCCOPY);

HTH

Regards
Frank

open the printer device

Jerome Conus29-Jul-03 19:19

Jerome Conus

29-Jul-03 19:19

Hi !

I posted a question yesterday about printing a postscript file in C++. I still need more informations about this. How can I, in C++ : open the printer device, write the file to the open handle, and close the printer device ?

Thank you for your help !
Jerome

Re: open the printer device

Joel Lucsy30-Jul-03 8:47

Joel Lucsy

30-Jul-03 8:47

Off the top of my head:
OpenPrinter
StartDoc
WritePrinter
EndDoc
ClosePrinter

if you need further advise, let me know. I've done it in one of my projects.

Joel Lucsy

Re: open the printer device

Jerome Conus30-Jul-03 19:11

Jerome Conus

30-Jul-03 19:11

Thank you for your answer. But I guess you are mentionning MFC functions, right ? I was trying to do it in standard C++ (I didnt mention it clearly in my question).

Thank you for your help anyway,
Jerome

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