i work on a win32 application. i try to access my web camera.
when i use this api funtion;
capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);

i get this error:
Error: undefined identifier capCreateCaptureWindow

my compile comman is:
dmd webcam.d gdi32.lib advapi32.lib

what am i doing wrong? how can i acces my web cam?

On Tue, Aug 11, 2009 at 6:10 PM, Ivan Boritsky<nibble_20@gmx.com> wrote:
> i work on a win32 application. i try to access my web camera.
> when i use this api funtion;
> capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);
>
> i get this error:
> Error: undefined identifier capCreateCaptureWindow
>
> my compile comman is:
> dmd webcam.d gdi32.lib advapi32.lib
>
> what am i doing wrong? how can i acces my web cam?

The Windows headers that come with Phobos are extremely incomplete. Try the WindowsApi bindings project instead: http://dsource.org/projects/bindings/wiki/WindowsApi

Ivan Boritsky wrote:
> i work on a win32 application. i try to access my web camera.
> when i use this api funtion;
> capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);

That should be: WS_VISIBLE | WS_CHILD.

> 
> i get this error:
> Error: undefined identifier capCreateCaptureWindow

You need a header module that imports the function. Try the vfw.d module at the project Jarrett pointed you to.

> 
> my compile comman is:
> dmd webcam.d gdi32.lib advapi32.lib

You'll also need vfw32.lib, which isn't part of the DMD distribution, but will be on your system if you've downloaded the Platform SDK - in which case, you'll need to run it through coffimplib (ftp://ftp.digitalmars.com/coffimplib.zip).

> 
> what am i doing wrong? how can i acces my web cam?

thank u very much. it works fine.

John C Wrote:

> Ivan Boritsky wrote:
> > i work on a win32 application. i try to access my web camera.
> > when i use this api funtion;
> > capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);
> 
> That should be: WS_VISIBLE | WS_CHILD.
> 
> > 
> > i get this error:
> > Error: undefined identifier capCreateCaptureWindow
> 
> You need a header module that imports the function. Try the vfw.d module at the project Jarrett pointed you to.
> 
> > 
> > my compile comman is:
> > dmd webcam.d gdi32.lib advapi32.lib
> 
> You'll also need vfw32.lib, which isn't part of the DMD distribution, but will be on your system if you've downloaded the Platform SDK - in which case, you'll need to run it through coffimplib (ftp://ftp.digitalmars.com/coffimplib.zip).


Hi John,

I also downloaded the said win32 zip but don't know how to compile to lib or dll,doesn't need to compile? or how to compile?

Thanks.
Regards,
Sam

Sam Hu Wrote:

> John C Wrote:
> 
> > Ivan Boritsky wrote:
> > > i work on a win32 application. i try to access my web camera.
> > > when i use this api funtion;
> > > capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);
> > 
> > That should be: WS_VISIBLE | WS_CHILD.
> > 
> > > 
> > > i get this error:
> > > Error: undefined identifier capCreateCaptureWindow
> > 
> > You need a header module that imports the function. Try the vfw.d module at the project Jarrett pointed you to.
> > 
> > > 
> > > my compile comman is:
> > > dmd webcam.d gdi32.lib advapi32.lib
> > 
> > You'll also need vfw32.lib, which isn't part of the DMD distribution, but will be on your system if you've downloaded the Platform SDK - in which case, you'll need to run it through coffimplib (ftp://ftp.digitalmars.com/coffimplib.zip).
> 
> 
> Hi John,
> 
> I also downloaded the said win32 zip but don't know how to compile to lib or dll,doesn't need to compile? or how to compile?
> 
> Thanks.
> Regards,
> Sam

Huh? You just run

  coffimplib -f vfw32.lib

and specify the .lib on your build command line - something like:

  dmd webcam vfw32.lib

John C Wrote:

> Sam Hu Wrote:
> 
> > John C Wrote:
> > 
> > > Ivan Boritsky wrote:
> > > > i work on a win32 application. i try to access my web camera.
> > > > when i use this api funtion;
> > > > capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);
> > > 
> > > That should be: WS_VISIBLE | WS_CHILD.
> > > 
> > > > 
> > > > i get this error:
> > > > Error: undefined identifier capCreateCaptureWindow
> > > 
> > > You need a header module that imports the function. Try the vfw.d module at the project Jarrett pointed you to.
> > > 
> > > > 
> > > > my compile comman is:
> > > > dmd webcam.d gdi32.lib advapi32.lib
> > > 
> > > You'll also need vfw32.lib, which isn't part of the DMD distribution, but will be on your system if you've downloaded the Platform SDK - in which case, you'll need to run it through coffimplib (ftp://ftp.digitalmars.com/coffimplib.zip).
> > 
> > 
> > Hi John,
> > 
> > I also downloaded the said win32 zip but don't know how to compile to lib or dll,doesn't need to compile? or how to compile?
> > 
> > Thanks.
> > Regards,
> > Sam
> 
> Huh? You just run
> 
>   coffimplib -f vfw32.lib
> 
> and specify the .lib on your build command line - something like:
> 
>   dmd webcam vfw32.lib

Hi John,

Thank you.I have win2003 SDK+vc++2008 EX installed in my machine.When I tried the winsamp.d in the example folder of dmd(ver2031):

/>coffimplib -f vfw32.lib
/>dmd winsamp.d gdi32.lib vfw32.lib winsamp.def
** also tried bud winsamp.d gdi32.lib vfw32.lib

I got below error:

F:\laguangeD\WindowsApi-CMakeD\demo>bud winsampw.d -cleanup gid32.lib vfw32.lib
OPTLINK (R) for Win32  Release 8.00.1
Copyright (C) Digital Mars 1989-2004  All rights reserved.
mpr.lib
 Warning 2: File Not Found mpr.lib
imm32.lib
 Warning 2: File Not Found imm32.lib
lz32.lib
 Warning 2: File Not Found lz32.lib
rpcns4.lib
 Warning 2: File Not Found rpcns4.lib

What's that?Was I missing something?

Regards,
Sam

Sam Hu wrote:
> John C Wrote:
> 
>> Sam Hu Wrote:
>>
>>> John C Wrote:
>>>
>>>> Ivan Boritsky wrote:
>>>>> i work on a win32 application. i try to access my web camera.
>>>>> when i use this api funtion;
>>>>> capCreateCaptureWindow("cam", WS_VISIBLE + WS_CHILD, 10, 10,266, 252, hWnd, 0);
>>>> That should be: WS_VISIBLE | WS_CHILD.
>>>>
>>>>> i get this error:
>>>>> Error: undefined identifier capCreateCaptureWindow
>>>> You need a header module that imports the function. Try the vfw.d module at the project Jarrett pointed you to.
>>>>
>>>>> my compile comman is:
>>>>> dmd webcam.d gdi32.lib advapi32.lib
>>>> You'll also need vfw32.lib, which isn't part of the DMD distribution, but will be on your system if you've downloaded the Platform SDK - in which case, you'll need to run it through coffimplib (ftp://ftp.digitalmars.com/coffimplib.zip).
>>>
>>> Hi John,
>>>
>>> I also downloaded the said win32 zip but don't know how to compile to lib or dll,doesn't need to compile? or how to compile?
>>>
>>> Thanks.
>>> Regards,
>>> Sam
>> Huh? You just run 
>>
>>   coffimplib -f vfw32.lib
>>
>> and specify the .lib on your build command line - something like:
>>
>>   dmd webcam vfw32.lib
> 
> Hi John,
> 
> Thank you.I have win2003 SDK+vc++2008 EX installed in my machine.When I tried the winsamp.d in the example folder of dmd(ver2031):
> 
> />coffimplib -f vfw32.lib
> />dmd winsamp.d gdi32.lib vfw32.lib winsamp.def
> ** also tried bud winsamp.d gdi32.lib vfw32.lib 
> 
> I got below error:
> 
> F:\laguangeD\WindowsApi-CMakeD\demo>bud winsampw.d -cleanup gid32.lib vfw32.lib OPTLINK (R) for Win32  Release 8.00.1
> Copyright (C) Digital Mars 1989-2004  All rights reserved.
> mpr.lib
>  Warning 2: File Not Found mpr.lib
> imm32.lib
>  Warning 2: File Not Found imm32.lib
> lz32.lib
>  Warning 2: File Not Found lz32.lib
> rpcns4.lib
>  Warning 2: File Not Found rpcns4.lib
> 
> What's that?Was I missing something?
> 
> Regards,
> Sam

Those are warnings, not errors. Ignore them, it will compile anyway.

John C Wrote:
> Those are warnings, not errors. Ignore them, it will compile anyway.

Ah ..yes.It work .BTW,just cfw32.lib is needed,no need gdi32.lib to compile.

Thank you so much!
Regards,
Sam