Difference between revisions of "GenerateLibFromDll"

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m (Reverted edits by Longcn (talk) to last revision by Edwardw)
m (+{{Example code|for=libVLC}}, format, grammar)
 
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{{Example code|for=libVLC}}
 
from: [http://www.coderetard.com/2009/01/21/generate-a-lib-from-a-dll-with-visual-studio/ http://www.coderetard.com/2009/01/21/generate-a-lib-from-a-dll-with-visual-studio/]
 
from: [http://www.coderetard.com/2009/01/21/generate-a-lib-from-a-dll-with-visual-studio/ http://www.coderetard.com/2009/01/21/generate-a-lib-from-a-dll-with-visual-studio/]
  
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It can be found within the Visual Studio Tools menu entry: Start / Program Files / Microsoft Visual Studio / Visual Studio Tools / Visual Studio Command Prompt.
 
It can be found within the Visual Studio Tools menu entry: Start / Program Files / Microsoft Visual Studio / Visual Studio Tools / Visual Studio Command Prompt.
  
== Extract Symbols ==
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== Extract Symbols ==
  
 
Within the command prompt type:  
 
Within the command prompt type:  
  
  dumpbin /exports "C:\Program Files\VideoLAN\VLC\libvlc.dll" > "C:\Program Files\VideoLAN\VLC\libvlc.def"
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  {{prompt|cmd}} dumpbin /exports "{{Path to VLC|windows|dir=y|q=n}}\libvlc.dll" > "{{Path to VLC|windows|dir=y|q=n}}\libvlc.def"
  
 
Edit the libvlc.def file and modify it to get something like this:  
 
Edit the libvlc.def file and modify it to get something like this:  
 
 
  EXPORTS
 
  EXPORTS
 
  libvlc_add_intf
 
  libvlc_add_intf
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Alternatively, the following command will automatically generate the DEF file:
 
Alternatively, the following command will automatically generate the DEF file:
  
  echo EXPORTS > libvlc.def
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  {{prompt|cmd}} echo EXPORTS > libvlc.def
  for /f "usebackq tokens=4,* delims=_ " %i in (`dumpbin /exports "c:\Program Files\VideoLan\VLC\libvlc.dll"`) do if %i==libvlc echo %i_%j >> libvlc.def
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  {{prompt|cmd}} for /f "usebackq tokens=4,* delims=_ " %i in (`dumpbin /exports "{{Path to VLC|windows|dir=y|q=n}}\libvlc.dll"`) do if %i==libvlc echo %i_%j >> libvlc.def
  
 
== Generate the .lib ==
 
== Generate the .lib ==
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Still within the command prompt type:
 
Still within the command prompt type:
  
  lib /def:"C:\Program Files\VideoLAN\VLC\libvlc.def" /out:"C:\Program Files\VideoLAN\VLC\libvlc.lib" /machine:x86
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  {{prompt|cmd}} lib /def:"{{Path to VLC|windows|dir=y|q=n}}\libvlc.def" /out:"{{Path to VLC|windows|dir=y|q=n}}\libvlc.lib" /machine:x86
  
 
Of course, you'll need to adapt the path according to your configuration.
 
Of course, you'll need to adapt the path according to your configuration.
  
Et voila! You have it, now you can link against libvlc.lib in your program <nowiki>:-)</nowiki>
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Voilà! You have it, now you can link against libvlc.lib in your program <nowiki>:-)</nowiki>
  
[[Category:LibVLC]]
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[[Category:libVLC]]

Latest revision as of 08:38, 18 March 2019

This page contains example code for libVLC.

from: http://www.coderetard.com/2009/01/21/generate-a-lib-from-a-dll-with-visual-studio/

Introduction

To avoid installing and fighting against MSYS and Cygwin, you can just extract exported symbols from libvlc.dll to generate a .lib (libvlc.lib) and link your program against it. And all of this using only with Microsoft Visual Studio Tools!

In case you don't have Visual Studio you can download the free version here Visual Studio Express.

Open a Command Prompt

It can be found within the Visual Studio Tools menu entry: Start / Program Files / Microsoft Visual Studio / Visual Studio Tools / Visual Studio Command Prompt.

Extract Symbols

Within the command prompt type:

> dumpbin /exports "%PROGRAMFILES%\VideoLAN\VLC\libvlc.dll" > "%PROGRAMFILES%\VideoLAN\VLC\libvlc.def"

Edit the libvlc.def file and modify it to get something like this:

EXPORTS
libvlc_add_intf
libvlc_audio_get_channel
libvlc_audio_get_mute
libvlc_audio_get_track
libvlc_audio_get_track_count
libvlc_audio_get_track_description
libvlc_audio_get_volume
...

Alternatively, the following command will automatically generate the DEF file:

> echo EXPORTS > libvlc.def
> for /f "usebackq tokens=4,* delims=_ " %i in (`dumpbin /exports "%PROGRAMFILES%\VideoLAN\VLC\libvlc.dll"`) do if %i==libvlc echo %i_%j >> libvlc.def

Generate the .lib

Still within the command prompt type:

> lib /def:"%PROGRAMFILES%\VideoLAN\VLC\libvlc.def" /out:"%PROGRAMFILES%\VideoLAN\VLC\libvlc.lib" /machine:x86

Of course, you'll need to adapt the path according to your configuration.

Voilà! You have it, now you can link against libvlc.lib in your program :-)