The VLC ActiveX Control has been primary designed to work with Internet Explorer.
however it may also work with Visual Basic and/or .NET
-Please note, that this code does not rely upon MFC/ATL, hence good compatibility
-is not guaranteed
+Please note, that this code does not rely upon Microsoft MFC/ATL code,
+hence good compatibility is not guaranteed.
-== Compiling ==
+I. Compiling
+
+The ActiveX Control should compile without any glitches as long as you have the latest
+version of mingw gcc and headers. However, In order to script the ActiveX Control
+on Internet Explorer, a type library is required.
-In order to script the ActiveX Control on Internet Explorer, a type library is required.
This type library is usually generated from an IDL file using Microsoft MIDL compiler.
-However, for convenience I have checked in the output of the MIDL compiler in the
+Therefore, for convenience I have checked in the output of the MIDL compiler in the
repository so that you will only need the MIDL compiler if you change axvlc.idl.
the generated files are as follow:
if you are cross-compiling on Linux, you may be able to use 'widl' which is part of
the WINE project (http://www.winehq.com), however I have not tested it.
-== Installing ==
+II. Debugging
+
+the ActiveX control is compiled with verbose output by default. However you will
+need to launch Internet Explorer from a Cygwin shell to see the output.
+Alternatively, the plugin will also use the VLC preferences, hence if you enable
+the file logging interface through the player and save the preferences, the
+control will automatically log its verbose output into the designated file.
+
+Debugging the ActiveX control DLL with GNU GDB can be difficult. Fortunately,
+the ActiveX control can also be compiled as an executable rather than a DLL.
+In ActiveX terms, this is called a local server.
+The advantage of a local server is that it will never crash its client,
+i.e Internet Explorer, if itself is crashing.
+The build system does not currently allow to create an executable version of
+the ActiveX control, you will need to manually define the BUILD_LOCALSERVER
+pre-processor variable and modify the Makefile to exclude the '-shared' option
+at the linking stage. Once this is done, you just need to launch axvlc.exe to
+have a working Activex control. Please note, that executable version of the
+ActiveX control will override any settings required for the DLL version, which
+will no longer work until you (re)register it as shown in the following section
+
+III. Local Install
+
+The VLC NSIS installer will install the ActiveX Control without requiring any
+further manual intervention, but for people who like to live on the edge, here
+are the steps you need to perform once you have built the ActiveX Control.
-The ActiveX control is built as axvlc.dll, which is the only file that needs be
-distributed and it may be installed anywhere on the target machine as long as
-its path is correct within the registry.
-the necessary registry settings are stored in axvlc.reg
+The ActiveX control DLL file may be copied anywhere on the target machine,
+but before you can use the control, you will need to register it with Windows
+by using the REGSVR32 command, as per following example:
-in order to use the plugin, you will need to VLC properly installed on your system
-otherwise make sure that the plugin path is set in the registry as indicated below
+REGSVR32 C:\WINDOWS\AXVLC.DLL
+
+if the control needs to use external VLC plugins (i.e other than built-in ones),
+make sure that the plugin path is set in the registry as per following example:
[HKEY_LOCAL_MACHINE\Software\VideoLAN\VLC]
-InstallDir="path\\dir\\"
+InstallDir="C:\Program Files\VideoLAN\VLC"
+
+The InstallDir must be the parent directory of the 'plugins' directory.
+
+WARNING: Both control and plugins must come from the same build source tree.
+Otherwise, at best, the control will not play any content, at worse
+it may crash Internet Explorer while attempting to load incompatible plugins.
+
+IV. Internet Install
+
+The activex control may be installed from a remote through Internet Installer if
+it is packaged up in a CAB file. The following link explains how to achieve this
+
+http://msdn.microsoft.com/workshop/components/activex/packaging.asp
+
+For convenience, I have provided a sample axvlc.INF file, which assumes that the VLC
+NSIS Installer has been packaged up a CAB file called AXVLC.CAB.
+
+The ActiveX Control DLL file can also be distributed by itself if it has been
+compiled with built-in VLC plugins; check developer information for more
+information on built-in plugins.
+
+V. Controlling the plugin
+
+1) Properties
+
+the following public properties can be used to control the plugin from HTML,
+the property panel of Visual Basic and most ActiveX aware applications
+
++==========+=========+================================+===============+
+| Name: | Type: | Description: | Alias: |
++==========+=========+================================+===============+
+| autoplay | boolean | play when control is activated | autostart |
++----------+---------+--------------------------------+---------------+
+| autoloop | boolean | loop the playlist | loop |
++----------+---------+--------------------------------+---------------+
+| mrl | string | initial MRL in playlist | src, filename |
++----------+---------+--------------------------------+---------------+
+| mute | boolean | mute audio volume | |
++----------+---------+--------------------------------+---------------+
+| visible | boolean | show/hide control viewport | showdisplay |
++----------+---------+--------------------------------+---------------+
+| volume | integer | set/get audio volume | |
++----------+---------+--------------------------------+---------------+
+
+the alias column allows to specify an alternative <PARAM name> for the
+property in internet explorer, which is useful to maintain compatibility
+with HTML pages already leveraging Windows Media Player
-regards,
+2) Programming APIs
+
+the MRL, Autoplay and Autoloop properties are only used to configure the initial
+state of the ActiveX control,i.e before its activation; they are ignored afterward.
+Therefore, if some runtime control is required, the following APIs should be used
+within your programming environment:
+
+Variables:
+
++==========+=========+=========+=======================================+
+| Name: | Type: | Access: | Description: |
++==========+=========+=========+=======================================+
+| Playing | boolean | RO | Returns whether some MRL is playing |
++----------+---------+---------+---------------------------------------+
+| Time | integer | RW | Time elapsed in seconds playing |
+| | | | current MRL |
+| | | | NOTE: live feeds returns 0 |
++----------+---------+---------+---------------------------------------+
+| Position | real | RW | Playback position within current MRL |
+| | | | in a scale from 0.0 to 1.0 |
+| | | | NOTE: live feeds returns 0.0 |
++----------+---------+---------+---------------------------------------+
+| Length | integer | RO | Total length in seconds of current MRL|
+| | | | NOTE: live feeds returns 0 |
++----------+---------+---------+---------------------------------------+
+| Volume | integer | RW | Current volume from 0 to 100 |
++----------+---------+---------+---------------------------------------+
+| Visible | boolean | RW | Indicates whether control is visible |
++----------+---------+---------+---------------------------------------+
+
+Methods:
+
+play()
+ Play current item the playlist
+
+pause()
+ Pause current item in the playlist
+
+stop()
+ Stop playing current item in playlist
+
+shuttle(Seconds as integer)
+ Advance/backtrack playback by specified amount (which is negative for
+ backtracking). This is also called relative seeking.
+ This method does not work for live streams.
+
+fullscreen()
+ Switch between normal and full screen video
+
+playFaster()
+ Increase play back speed by 2X, 4X, 8X
+
+playSlower()
+ Decrease play back speed by 2X, 4X, 8X
+
+toggleMute()
+ mute/unmute sound output
+
+addTarget(MRL As String, Options as array of strings, Mode as enumeration, Position as integer)
+ Add MRL into the default playlist, you can also specify a list of playlist Options to attach
+ to this MRL or Null for no options. mode indicates the action taken by the playlist on MRL
+ which is one the following:
+ VLCPlayListInsert = 1 (Insert MRL into playlist at Position)
+ VLCPlayListInsertAndGo = 9 (Insert MRL into playlist at Position and play it immediately)
+ VLCPlayListReplace = 2 (Replace MRL in playlist at Position)
+ VLCPlayListReplaceAndGo = 10 (Replace MRL in playlist at Position and play it immediately)
+ VLCPlayListAppend = 4 (Append MRL in playlist after Position)
+ VLCPlayListAppendAndGo = 12 (Append MRL in playlist after Position and play it immediately)
+ VLCPlayListCheckInsert = 16 (Verify if MRL is in playlist)
+ Position can take the value of -666 as wildcard for the last element in playlist
+
+
+setVariable(Name as string, Value as object);
+ Set a value into a VLC variables
+
+getVariable( Name as string) as object
+ Retrieve the value of a VLC variable.
+
+Regards,
Damien Fouilleul <Damien dot Fouilleul at laposte dot net>
+
projects / vlc / blobdiff