How to cut MPEG files? - C / C++ / MFC Discussion Boards

moran kaye11-Jul-02 2:35

moran kaye

11-Jul-02 2:35

I want to develop a product that can send and receive SMS messages
via a GSM modem but cant figure out how to use the AT commands to control the modem

moran kaye

Re: AT command

Fred D.11-Jul-02 3:16

Fred D.

11-Jul-02 3:16

well, i'm working on a project that needs to send & receive SMS as well, so here is a procedure to follow :

1) Open the Com port, using CreateFile()
don't forget to set-up the COMMTIMEOUTS & DCB structures.

2) to send an SMS you need to send your AT command as char to your com port (modem), like this :
char c[300] = {0}, r[100] = {0}, tmp[300] = {0};
DWORD dwBytesWrite, dwBytesRead, dwTmp;

// *** INIT PHASE : SET DATA TYPE TO SMS ***
strcpy(c, "AT+CMGF=1\r\n");

and then
if(!WriteFile(hGSMPort,c,strlen(c),&dwBytesWrite,NULL)
...
don't forget to read the reply from the modem.
using ReadFile()

3) when the port is open, create a thread to read new SMS received

hope it helps

Fred

Re: AT command

Brian Azzopardi11-Jul-02 3:48

Brian Azzopardi

11-Jul-02 3:48

Pretty easy to do. I've implemented some code which does the same. On freshmeat.net there are a couple of opensource projects which do the same. I suggest you download them and have a look at the sources.

To access the serial port use CreateFile() + SetCommState(). It's all in the Platform SDK.

HTH

bibamus, edamus, cras moriemur [eat, drink, for tomorrow we die]

Newbie struggling with makefile and linker

Janine11-Jul-02 1:58

Janine

11-Jul-02 1:58

Hello,

I have a problem with makefile and linker. I get error LNK2001: unresolved external symbol "int __cdecl LibFunction(char *,int)" (?LibFunction@@YAHPADH@Z), when trying to use Function that is in mylib.lib.

I have macros:
LINK_FLAGS=/machine:I386
LIBS=..\lib\mylib.lib

and I'm trying to link like this:
myprogram.exe: $(OBJS)
link $(LIBS) $(LINK_FLAGS) $(OBJS) /OUT:$@

How do I make the linker realize that LibFunction is in mylib.lib?

Regards,
-Janetta

Re: Newbie struggling with makefile and linker

Rage11-Jul-02 3:37

Rage

11-Jul-02 3:37

Try to put your lib name and path into the Project/Settings/Link - Object/Library Modules editbox for all configurations that need it.

~RaGE();

Re: Newbie struggling with makefile and linker

Janine11-Jul-02 4:02

Janine

11-Jul-02 4:02

There is only 'General' and 'Debug' tabs in the 'Settings' of this project. I guess it's because it is a makefile-project. If I'm wrong, please correct me.

But aren't those tabs only a another way to tell the compiler and linker how to make the .exe. So what do I have to do my makefile instead of changing settings?

PS. I would do the program withaut makefile if I could, but there is so much more in it. Btw, is there a way to combine a "normal" project and makefile?

-Janetta

Re: Newbie struggling with makefile and linker

Bill Wilson11-Jul-02 12:01

Bill Wilson

11-Jul-02 12:01

Create a project with the settings you want to use. Then select Export Makefile from the Project menu. Merge/plagerize the result with your makefile project.

How to cut MPEG files?

RichardWdy11-Jul-02 1:29

RichardWdy

11-Jul-02 1:29

I want to edit a MPEG-I format(*.mpg) file. I want to extract some clips from MPEG files and combine those cilps together. Either using frame or absoulute time dose.
Is there any free code or class works?
Anyone who know that please help me.

Windows XP, VC++ 6.0, SP5

Re: How to cut MPEG files?

Mike Nordell11-Jul-02 1:31

Mike Nordell

11-Jul-02 1:31

You might have a look at VirtualDub. It's GPL so I think it fits your request for "free". Smile | :)

Re: How to cut MPEG files?

RichardWdy11-Jul-02 1:49

RichardWdy

11-Jul-02 1:49

Can you give me any further infomation?
I am not familiar with that.
What I need is the c++ code or class which can perform the task.

Windows98 SE, VC++ 6.0 SP5

Re: How to cut MPEG files?

Mike Nordell11-Jul-02 10:56

Mike Nordell

11-Jul-02 10:56

RichardWdy wrote:
What I need is the c++ code or class which can perform the task.

Yes? I've already pointed you to some code. You want more? How about FlaskMPEG?

Can't install Platform SDK

User 665810-Jul-02 23:35

User 6658

10-Jul-02 23:35

hi!

I just downloaded the latest Platform SDK, however, I can't install it.
When I execute the CoreSDK-x86.msi the Setup tells me to uninstall any previous versions of the Platform SDK.

But how do I uninstall the Platform SDK (current version intalled on my computer: November 2001)?
In the Control Panel un er "Software" there is no item to uninstall the psdk...and if I choose to uninstall the psdk from the Start Menu only a html file opens

So how do I uninstall it?

modified 12-Sep-18 21:01pm.

Re: Can't install Platform SDK

DanielP11-Jul-02 3:00

DanielP

11-Jul-02 3:00

do it via Add-Remove Programs

print problem startdoc() enddoc()

khaldoun10-Jul-02 23:36

khaldoun

10-Jul-02 23:36

Hi
I am using CDC to print a job.

in my application when I call CDC::EndDoc() my Application blocks on some printers (where the option "print imediatly to printer" is set.
and when I stop the application "ctrl-alt-delete" and "end task" the job goes to the printer and is well printed.

it's may be a problem of spooling???

thank for help

khaldoun

MDI Child Window Maximising - Getting Large Numbers...

Blade[DMS]10-Jul-02 23:22

Blade[DMS]

10-Jul-02 23:22

Hi I have an MDI application which uses multiple resizable formviews for the child windows.
When one of the child windows is macimised, opening another child window results in an OnSize message with a width and height of 32763.
(This is running on Windows 2000)

Any Ideas why this is happening, and how to prevent it???

Thanks...

Blade[DMS]

Re: MDI Child Window Maximising - Getting Large Numbers...

Blade[DMS]11-Jul-02 1:51

Blade[DMS]

11-Jul-02 1:51

Found it....
Was a dodgy OnGetMinMax...

Blade[DMS]

It just stopped working...

Andreas Saurwein10-Jul-02 22:59

Andreas Saurwein

10-Jul-02 22:59

I'm stuck with a not-more working MMCCtrl.
All of a sudden, the MMCCtrl (MMCs own control used in TaskPads) stopped to function properly.
Only thing I get is a "Object does not support this method".
Well, "this method" does work, at least on other machines with the same MMC installed, and it did on mine until short time ago.

Seems that IE is just messing it up in the HTML which loads that control.

Any ideas????

Vote against software patents in europe

Re: It just stopped working...

calebcohoon11-Jul-02 7:41

calebcohoon

11-Jul-02 7:41

Hello,

Have you tried just re-registering the control on your machine?

Later,
Caleb

Re: It just stopped working...

Andreas Saurwein11-Jul-02 7:59

Andreas Saurwein

11-Jul-02 7:59

Even that, but the registration was fine. doublechecked it.

Vote against software patents in europe

How to send message to frame window ?

Alek10-Jul-02 22:57

Alek

10-Jul-02 22:57

I wnat to send message to every active windows but I got a problem.
If the window with child frame(like Word, Excel...etc.),
it seems not to get the message which I send.
Maybe it's useful to get every frames' handle and send message to every frame.
Does anyone know how to get every handles of frames ?

Re: How to send message to frame window ?

Shog⁹11-Jul-02 9:56

Shog⁹

11-Jul-02 9:56

1) what message are you sending?
2) how are you currently sending it to all windows?
3) (prolly related to #1) how do you know they are not recieving the message?

- Shog9 -

Aaah... It's time to relax. You know what that means: a glass of beer, your favorite ergo chair... And of course, The Code Project loaded on your Personal Computer System. So go on, and indulge yourself, put your feet up. Lean back and just enjoy the articles. After all, CP sooths even the savage Green Alien | [Alien]

Re: How to send message to frame window ?

Alek11-Jul-02 16:02

Alek

11-Jul-02 16:02

All I want is to change the scroll lines number.
I used SystemParameterInfo(SPI_SETWHEELSCROLLLINES,...) to change the scroll lines number but in the frame windows(like Word, Excel..etc), and then I send a WM_SETTINGCHANG message to system-wide windows.
'SendMessage(HWND_BROADCAST, WM_SETTINGCHANG, 0, 0)'
But only in frame windows that this parameter don't work.
What should I do?

Re: How to send message to frame window ?

shog911-Jul-02 17:56

shog9

11-Jul-02 17:56

First, i'm not certain that Office applications actually use this setting. I seem to remember at least Office '97 being a bit strange about handling the mouse wheel. What version of Office are you testing with?

Second, you should be able to use the SPIF_SENDCHANGE flag when calling SystemParametersInfo() to automatically send WM_SETTINGCHANGE to all windows.

- Shog9 -

Re: How to send message to frame window ?

Alek11-Jul-02 21:26

Alek

11-Jul-02 21:26

Thanks for your help.
I tested with Offce 'XP in Win98.
It's really a little strange about the mouse wheel.
I set 10 line per rotation but it does not work immediately only in the windows with frame windows(like Word, Excel..). In Explorer or Notepad, it works.
If I close Word and launch agagin, this setting works.

By the way, do you know 'SPI_SETSNAPTODEFBUTTON' parameter within SystemParametersInfo(). It seems not work in Win98.
My code is :
SystemParametersInfo(SPI_SETSNAPTODEFBUTTON, true, NULL, NULL)

Re: How to send message to frame window ?

Shog⁹12-Jul-02 3:58

Shog⁹

12-Jul-02 3:58

Alek wrote:
My code is

Once again, you may wish to try adding the SPIF_SENDCHANGE flag to the last parameter. I've never tried it though, so it could just be a bug in Win98.

- Shog9 -

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.