Media Player freezing application on exit
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From: David Leahy on 21 Dec 2007 06:35 Hi, When I run media player as part of my Compact Framework application (2.0) it runs fine, but when I try to exit the application it hangs and freezes the application - requiring a reboot - I've read somewhere that some Marshal com object can solve this, but I've no idea how - have you any other suggestions ? I've coding in VB.net Thanks David
From: " ctacke/>" on 21 Dec 2007 09:58 How are you "running media player"? Though a Process class that just executes it? -- Chris Tacke, eMVP Join the Embedded Developer Community http://community.opennetcf.com "David Leahy" <DavidLeahy(a)discussions.microsoft.com> wrote in message news:51F3ADBF-88AF-4B48-86F8-B20FA062287D(a)microsoft.com... > Hi, > > When I run media player as part of my Compact Framework application (2.0) > it > runs fine, but when I try to exit the application it hangs and freezes the > application - requiring a reboot - I've read somewhere that some Marshal > com > object can solve this, but I've no idea how - have you any other > suggestions > ? I've coding in VB.net > > Thanks > > David
From: David Leahy on 2 Jan 2008 05:13 Here is my code: Public player As New WMPLib.WindowsMediaPlayer() Dim mypath As String mypath = GetAppPath() try If File.Exists(mypath) = True Then player.URL = mypath 'System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + "\media\change.mp3" MsgBox(player.URL) player.settings.volume = 100 player.controls.play() End If Catch err As SqlCeException 'Insert error handling code here MessageBox.Show(err.Message) End Try Public Function GetAppPath() As String Return System.IO.Path.GetDirectoryName( _ System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) End Function The application hangs unless I comment all of the above code out Regards David "<ctacke/>" wrote: > How are you "running media player"? Though a Process class that just > executes it? > > > -- > > Chris Tacke, eMVP > Join the Embedded Developer Community > http://community.opennetcf.com > > > "David Leahy" <DavidLeahy(a)discussions.microsoft.com> wrote in message > news:51F3ADBF-88AF-4B48-86F8-B20FA062287D(a)microsoft.com... > > Hi, > > > > When I run media player as part of my Compact Framework application (2.0) > > it > > runs fine, but when I try to exit the application it hangs and freezes the > > application - requiring a reboot - I've read somewhere that some Marshal > > com > > object can solve this, but I've no idea how - have you any other > > suggestions > > ? I've coding in VB.net > > > > Thanks > > > > David > > >
From: " ctacke/>" on 2 Jan 2008 08:56 I assume the WMPLib is one generated following the COM interop webcast on MSDN? There isn't one directly in the CF. My guess is that on close you need to be cleaning up your COM references. -- Chris Tacke, Embedded MVP OpenNETCF Consulting Giving back to the embedded community http://community.OpenNETCF.com "David Leahy" <DavidLeahy(a)discussions.microsoft.com> wrote in message news:FEE9A3A5-F65A-4CE2-BDAA-E142F39CDB29(a)microsoft.com... > Here is my code: > > Public player As New WMPLib.WindowsMediaPlayer() > > > Dim mypath As String > mypath = GetAppPath() > > > try > > If File.Exists(mypath) = True Then > player.URL = mypath > 'System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) > + "\media\change.mp3" > MsgBox(player.URL) > player.settings.volume = 100 > player.controls.play() > End If > > > Catch err As SqlCeException > 'Insert error handling code here > MessageBox.Show(err.Message) > > End Try > > Public Function GetAppPath() As String > Return System.IO.Path.GetDirectoryName( _ > > System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) > End Function > > > > The application hangs unless I comment all of the above code out > > Regards > > David > > > > > "<ctacke/>" wrote: > >> How are you "running media player"? Though a Process class that just >> executes it? >> >> >> -- >> >> Chris Tacke, eMVP >> Join the Embedded Developer Community >> http://community.opennetcf.com >> >> >> "David Leahy" <DavidLeahy(a)discussions.microsoft.com> wrote in message >> news:51F3ADBF-88AF-4B48-86F8-B20FA062287D(a)microsoft.com... >> > Hi, >> > >> > When I run media player as part of my Compact Framework application >> > (2.0) >> > it >> > runs fine, but when I try to exit the application it hangs and freezes >> > the >> > application - requiring a reboot - I've read somewhere that some >> > Marshal >> > com >> > object can solve this, but I've no idea how - have you any other >> > suggestions >> > ? I've coding in VB.net >> > >> > Thanks >> > >> > David >> >> >>
From: David Leahy on 2 Jan 2008 09:19
Other people are having the same problem - check: http://objectmix.com/dotnet/98243-using-windowmediaplayer-object-smartphone-freezes-application.html They mention some Marshall release object but still can't seem to fix the problem ? Is there any other way to use media player in Compact Framework which is not affected by this problem ? Thanks David "<ctacke/>" wrote: > I assume the WMPLib is one generated following the COM interop webcast on > MSDN? There isn't one directly in the CF. My guess is that on close you > need to be cleaning up your COM references. > > > -- > > Chris Tacke, Embedded MVP > OpenNETCF Consulting > Giving back to the embedded community > http://community.OpenNETCF.com > > > > > "David Leahy" <DavidLeahy(a)discussions.microsoft.com> wrote in message > news:FEE9A3A5-F65A-4CE2-BDAA-E142F39CDB29(a)microsoft.com... > > Here is my code: > > > > Public player As New WMPLib.WindowsMediaPlayer() > > > > > > Dim mypath As String > > mypath = GetAppPath() > > > > > > try > > > > If File.Exists(mypath) = True Then > > player.URL = mypath > > 'System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) > > + "\media\change.mp3" > > MsgBox(player.URL) > > player.settings.volume = 100 > > player.controls.play() > > End If > > > > > > Catch err As SqlCeException > > 'Insert error handling code here > > MessageBox.Show(err.Message) > > > > End Try > > > > Public Function GetAppPath() As String > > Return System.IO.Path.GetDirectoryName( _ > > > > System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) > > End Function > > > > > > > > The application hangs unless I comment all of the above code out > > > > Regards > > > > David > > > > > > > > > > "<ctacke/>" wrote: > > > >> How are you "running media player"? Though a Process class that just > >> executes it? > >> > >> > >> -- > >> > >> Chris Tacke, eMVP > >> Join the Embedded Developer Community > >> http://community.opennetcf.com > >> > >> > >> "David Leahy" <DavidLeahy(a)discussions.microsoft.com> wrote in message > >> news:51F3ADBF-88AF-4B48-86F8-B20FA062287D(a)microsoft.com... > >> > Hi, > >> > > >> > When I run media player as part of my Compact Framework application > >> > (2.0) > >> > it > >> > runs fine, but when I try to exit the application it hangs and freezes > >> > the > >> > application - requiring a reboot - I've read somewhere that some > >> > Marshal > >> > com > >> > object can solve this, but I've no idea how - have you any other > >> > suggestions > >> > ? I've coding in VB.net > >> > > >> > Thanks > >> > > >> > David > >> > >> > >> > > > |