video capture

Thread View: borland.public.cppbuilder.multimedia

3 messages

[T] Back to Threads [V] Tree View [G] Group Articles

3 total messages Started by Tom Deleu Sun, 20 Jan 2002 13:15

#1139

Author: Tom Deleu
Date: Sun, 20 Jan 2002 13:15

16 lines
1375 bytes

I try to create a Capture window with the following code in my onformCreate
event:
-------
char szDeviceName[100];
char szDeviceVersion[100];

capGetDriverDescription (0, szDeviceName, sizeof (szDeviceName),
szDeviceVersion, sizeof (szDeviceVersion));
hWndC = capCreateCaptureWindow(szDeviceName, WS_CHILD | WS_VISIBLE , 0, 0,
160 , 120 , this->Handle, 0);
-------

But everytime I get a "access violation" on the capCreateCaptureWindow
statement...

Can anyone help me and say to me what i'm doing wrong?

Re: video capture

#1140

Author: Tom Deleu
Date: Mon, 21 Jan 2002 10:55

27 lines
1627 bytes

oops, made a mistake, it not op the capCreateCaptureWindow statement, the
access violation occurs but on the next statement, "capConnectDevice(hWndC,
0);"

"Tom Deleu" <tdeleu@hotmail.com> schreef in bericht news:3c4ac2d3_1@dnews...
> I try to create a Capture window with the following code in my
onformCreate
> event:
> -------
> char szDeviceName[100];
> char szDeviceVersion[100];
>
> capGetDriverDescription (0, szDeviceName, sizeof (szDeviceName),
> szDeviceVersion, sizeof (szDeviceVersion));
> hWndC = capCreateCaptureWindow(szDeviceName, WS_CHILD | WS_VISIBLE , 0, 0,
> 160 , 120 , this->Handle, 0);
> -------
>
> But everytime I get a "access violation" on the capCreateCaptureWindow
> statement...
>
> Can anyone help me and say to me what i'm doing wrong?
>
>
>
>
>

Re: video capture

#1142

Author: Michael Kutscher
Date: Fri, 25 Jan 2002 20:02

19 lines
1628 bytes

Hi, Tom,

> access violation occurs but on the next statement,
"capConnectDevice(hWndC,
> 0);"

I could not find anything about this function. I suppose, eigther hWndC is
NULL for some reason, or this function need some non-zero second parameter.

I'm using

   bool cap=capDriverConnect(hWndC,0);

instead of this and that works fine. (CapDriverDisconnect is neccessary
before closing the application).

Good Luck

Michael

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads