Cutting a MPEG file - C / C++ / MFC Discussion Boards

Pavel Klocek14-Sep-02 9:35

14-Sep-02 9:35

Fill the dialog with data in WM_ONINITDIALOG message handler and use it this way:
<pre>
CDisplay::Foo()
{
CTestDlg dlg;
dlg.DoModal()
}
</pre>
Pavel
<small><a href="http://www.sonork.com">Sonork</a> <b>100.15206</b></small>

Re: CListBox and GetDlgItem Error

Licensed2Code16-Sep-02 18:31

Licensed2Code

16-Sep-02 18:31

I've already invoked the DoModal() in InitInstance() part of the application. And if I do it again, it would create another dialog which I dont' want. Anyother ideas???

Thanks...
Jey

Simulating doubleclick

Jack Handy14-Sep-02 7:47

Jack Handy

14-Sep-02 7:47

Currently I'm using

mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);

I could easily do the same thing with SendInput() but my question is, is this the right way to simulate a doubleclick?

-Jack

If things are as bad as they can be, you can be sure there'll be a brighter tomarrow.

Re: Simulating doubleclick

Anonymous14-Sep-02 8:25

Anonymous

14-Sep-02 8:25

According to the MSDN the mouse_event function has been superseeded by the SendInput() function so i think it would be best to use that.

What causes a "User breakpoint" to be called?

Redeemer-dk14-Sep-02 7:35

Redeemer-dk

14-Sep-02 7:35

My program worked fine two minutes ago, but now when i enumerate a list with ACM compressors, i get a "Unhandled exception at 0x77f767cd in MP3.exe: User breakpoint." Why does it do that? I have never had problems with that before. It happens when i open an ACM driver:

acmDriverOpen(&hacm, hadid, 0);

It's opened inside an enumeration function where i get a HACMDRIVERID delivered inside the function so it should be valid. Anyone have some info on "user breakpoints" or know what could be wrong?

Thanks in advance.

-Rune Svendsen

Re: What causes a "User breakpoint" to be called?

Pavel Klocek14-Sep-02 7:43

Pavel Klocek

14-Sep-02 7:43

Your program got lost probably and jumped randomly somewhere into memory. Maybe a stack was damaged before returning from a function.

Pavel
Sonork 100.15206

Re: What causes a "User breakpoint" to be called?

Anonymous14-Sep-02 8:00

Anonymous

14-Sep-02 8:00

Any idea how to fix that?

Thanks Smile | :)

Cutting a MPEG file

Majid Shahabfar14-Sep-02 7:27

Majid Shahabfar

14-Sep-02 7:27

Hi dear,
How can I split a MPEG file into two or several small files or merge two or several MPEG files to one file?
What about DAT file?
Thank you.

Modifying vcspawn.exe to run processes in low priority

Todd Jeffreys14-Sep-02 6:50

Todd Jeffreys

14-Sep-02 6:50

I know there is a program which will patch it for VS6, but has one been released for .NET?

Re: Modifying vcspawn.exe to run processes in low priority

Mike Nordell14-Sep-02 7:32

Mike Nordell

14-Sep-02 7:32

Why bother? From a command prompt you can yourself start MSDev.exe in low priority. Just type "start /?" and there you go.

Re: Modifying vcspawn.exe to run processes in low priority

Daniel Lohmann16-Sep-02 6:58

Daniel Lohmann

16-Sep-02 6:58

Maybe he just want the compiler/linker etc to run at low priority, but the IDE should remain as responsive as possible...

--

Daniel Lohmann

http://www.losoft.de
(Hey, this page is worth looking! You can find some free and handy NT tools there Big Grin | :-D

)

convert

Shotgun14-Sep-02 6:08

Shotgun

14-Sep-02 6:08

newbie beware,
how could i convert this CString for an encryp routine?

CString tm;
tm = "Hello";

i've tried this, and everything else i could think of:
LPTSTR lpsz = new TCHAR[tm.GetLength()+1];
_tcscpy(lpsz, tm);

TCHAR HelloCrypt[] = lpsz;

i get, "can't convert char* too char[]"

any helps really appreciated.

shotgun

Re: convert

Pavel Klocek14-Sep-02 6:19

Pavel Klocek

14-Sep-02 6:19

shotgun wrote:
TCHAR HelloCrypt[] = lpsz;

You can't assign a pointer to an array.
Should be:

LPTSTR HelloCrypt = lpsz;

TCHAR HelloCrypt[] = "Hello" is possible, because it's constant known at compile time.
It's not VB, at runtime you must create arrays of unknown size using new.

Pavel
Sonork 100.15206

Re: convert

Shotgun14-Sep-02 6:19

Shotgun

14-Sep-02 6:19

figured it out
changed
TCHAR HelloCrypt[] = lpsz;
to
TCHAR *HelloCrypt = lpsz;
is there a better way or is this correct?

shotgun

Re: convert

Pavel Klocek14-Sep-02 6:26

Pavel Klocek

14-Sep-02 6:26

If the input parameter of your routine is constant, you can pass directly the CString variable, CString has an LPCTSTR() operator defined.

If your routine need to write into the string data, you can use CString::GetBuffer/ReleaseBuffer methods.

Pavel
Sonork 100.15206

Problem

Anonymous14-Sep-02 5:47

Anonymous

14-Sep-02 5:47

i have a problem with irda/connect: the code is
if (connect (sock, (struct sockaddr *)&address,
sizeof (SOCKADDR_IRDA)) == SOCKET_ERROR)
{
wsaError = WSAGetLastError();
}

wsaError returns WSAEINVAL;

There is some link that help me!

Re: Problem

Mike Nordell14-Sep-02 7:36

Mike Nordell

14-Sep-02 7:36

Anonymous wrote:
There is some link that help me!

That is correct, and I can't for my life understand why you haven't used it yourself!

MDITile - when, where?

FlyingWren14-Sep-02 5:06

FlyingWren

14-Sep-02 5:06

I have an application with an MDI Doc/View architecture, and I want to call MDITile() every time I open a new unique document, so that it automatically tiles all documents.

Problem is, when I call it from within CMainFrame::PreCreateWindow, i keep getting assertion errors (wrong object type). Also, having problems getting a handle to CMDIFrameWnd() outside of my mainframe.cpp file.

Help! When/where/how should I be calling MDITile() ?? Frown | :(

Re: MDITile - when, where?

Pavel Klocek14-Sep-02 5:34

Pavel Klocek

14-Sep-02 5:34

FlyingWren wrote:
when I call it from within CMainFrame::PreCreateWindow, i keep getting assertion errors
You can't call it from CMainFrame::PreCreateWindow. The application windows are not created yet, that's probably cause of the assertion.

FlyingWren wrote:
Also, having problems getting a handle to CMDIFrameWnd()
AfxGetMainWnd() returns the CMainFrame pointer for MDI application.

Pavel
Sonork 100.15206

Re: MDITile - when, where?

Neville Franks14-Sep-02 23:00

Neville Franks

14-Sep-02 23:00

FlyingWren wrote:
I have an application with an MDI Doc/View architecture, and I want to call MDITile() every time I open a new unique document, so that it automatically tiles all documents.

Problem is, when I call it from within CMainFrame::PreCreateWindow, i keep getting assertion errors (wrong object type). Also, having problems getting a handle to CMDIFrameWnd() outside of my mainframe.cpp file.

CMainFrame::PreCreateWindow() is way too early. Have a look at doing it in CChildFrame::ActivateFrame()

Neville Franks, Author of ED for Windows. www.getsoft.com

array manipulation

Intellect55914-Sep-02 4:22

Intellect559

14-Sep-02 4:22

Hello,
I am trying to develop a function that accepts one pointer to a character array, and takes out all of the white spaces in the array leaving only the characters in the same sequential order. However, I want to accomplish this by only using the one pointer passed to the function. I know this is probably not the best way to accomplish this but I know it can be done somehow. Any suggestions and help would be greatly appreciated. Thanx
I Am trying to figure out how to do this by not declaring another pointer, or variable of any type in the function.
This just seems kinda more interesting to me.
codefun

Re: array manipulation

Pavel Klocek14-Sep-02 4:42

Pavel Klocek

14-Sep-02 4:42

Homework?

void skipspace(char* txt)
{
	char *to = txt;
	char *from = txt;
	do
	{
		while(isspace(*from)) from++;
		if(to!=from) *to = *from;
		to++;
		from++;
	}
	while(*to);
}

Pavel
Sonork 100.15206

Re: array manipulation

Brian Delahunty14-Sep-02 4:42

Brian Delahunty

14-Sep-02 4:42

Intellect559 wrote:
However, I want to accomplish this by only using the one pointer passed to the function. I know this is probably not the best way to accomplish this but I know it can be done somehow. Any suggestions and help would be greatly appreciated. Thanx

Just use a loop to sequentially search through the array, placing the non-whitespace characters into a temporary arry of the same size as the one passed to it... then just copy the temp array back over the original one. Shoudl do the job for you Smile | :)

Regards,
Brian Dela Smile | :)

Re: array manipulation

Anders Molin14-Sep-02 13:19

Anders Molin

14-Sep-02 13:19

And allocate an extra array just for that job?

What about something like

foo(char *s)
{
  char *mid = s;
  while (*(s++) != ' ')
  {
    if (s == '\0')
    {
      break;
    }
    *(++mid) = s;
  }
}

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: array manipulation

Brian Delahunty16-Sep-02 7:33

Brian Delahunty

16-Sep-02 7:33

Duh brian... sorry. My brain has been on a go slow for the last 3 months, or so Wink | ;-)

Regards,
Brian Dela Beer | [beer]

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