(SOLUCIONADO SRC)Ayuda pasar codigo a VB.Net: Seriales Pen-Drives vb6

[Maurice_Lupin]

Estoy pasando un code a VB.net 2005 de Sergio Desanti (Hasseds) del foro VB6 : Seriales

Pen-Drives
http://foro.elhacker.net/programacion_visual_basic/seriales_de_pendrives_conectados_src-t331333.0.html

EL problema es que entra en un bucle interminable, y tampoco estoy seguro si estoy utilizando bien las

funciones del API

Código (vbnet) [Seleccionar] Expandir



   Imports System.Runtime.InteropServices    

   <StructLayout(LayoutKind.Sequential)> _
   public structure SP_DEVICE_INTERFACE_DATA
       public cbSize as Long
       public InterfaceClassGuid as GUID
       public flags as Long
       public IntPtr as Long
   End Structure
   
   <StructLayout(LayoutKind.Sequential)> _
   Public Structure SP_DEVINFO_DATA
    Public cbSize As UInteger
    Public ClassGuid As Guid
Public DevInst As UInteger
    Public Reserved As IntPtr
   End Structure
   
   
  <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto)> _
  Public Structure SP_DEVICE_INTERFACE_DETAIL_DATA
  Public cbSize As UInt32
<MarshalAs(UnmanagedType.ByValTStr, SizeConst:=256)> _
Public strDevicePath As String
  End Structure
   
   ' SetupDiGetClassDevs: Retorna informacion sobre el dispositivo.
   <DllImport("setupapi.dll",EntryPoint:="SetupDiGetClassDevsW", SetLastError:=True, _
   CharSet:=CharSet.Unicode, ExactSpelling:=True, PreserveSig:=True, _
   CallingConvention:=CallingConvention.Winapi)> _
   Private Shared Function SetupDiGetClassDevs( _
   ByRef ClassGuid As GUID, _
   ByVal Enumerator As Integer, _
   ByVal hwndParent As Integer, _
   ByVal Flags As Integer) As Integer
   End Function    

 ' SetupDiEnumDeviceInterfaces
 <DllImport("setupapi.dll", CharSet:=CharSet.Auto, SetLastError:=True)> _
 Public Shared Function SetupDiEnumDeviceInterfaces(ByVal hDevInfo As IntPtr, _
   ByRef devInfo As SP_DEVICE_INTERFACE_DATA, _
   ByRef interfaceClassGuid As Guid, _
   ByVal memberIndex As UInt32, _
   ByRef deviceInterfaceData As SP_DEVICE_INTERFACE_DATA) As Boolean
 End Function
 
 ' SetupDiGetDeviceInterfaceDetail
 <DllImport("setupapi.dll", CharSet:=CharSet.Auto, SetLastError:=True)> _
   Public Shared Function SetupDiGetDeviceInterfaceDetail ( _
   ByVal DeviceInfoSet As IntPtr, _
   ByRef DeviceInterfaceData As SP_DEVICE_INTERFACE_DATA, _
   ByRef DeviceInterfaceDetailData As SP_DEVICE_INTERFACE_DETAIL_DATA, _
   ByVal DeviceInterfaceDetailDataSize As UInteger, _
   ByRef RequiredSize As UInteger, _
   ByRef DeviceInfoData As SP_DEVINFO_DATA) As Boolean
   end function
   
   ' SetupDiDestroyDeviceInfoList
   <DllImport("setupapi.dll", _
   EntryPoint:="SetupDiDestroyDeviceInfoList", _
   SetLastError:=True, _
   ExactSpelling:=True, _
   PreserveSig:=True, _
   CallingConvention:=CallingConvention.Winapi)> _
   Private Shared Function SetupDiDestroyDeviceInfoList( _
   ByVal DeviceInfoSet As Integer) As Boolean
   End Function
   
   '------CharSet:=CharSet.Auto
'    <DllImport("ole32.dll", CharSet:=CharSet.Unicode,PreserveSig:=false)> _
' static IIDFromString(lpsz as String)
   

' Funcion
Public Function FlashSerials() As String

  Dim TGUID As GUID
  Dim lCount       As Long
  Dim lSize        As Long
  Dim DTL          As new SP_DEVICE_INTERFACE_DETAIL_DATA
  Dim DTA          As new SP_DEVICE_INTERFACE_DATA
  dim cad as String  
  Dim strValue As String ="{a5dcbf10-6530-11d2-901f-00c04fb951ed}"

  ' esto era: Call IIDFromString(StrPtr("{a5dcbf10-6530-11d2-901f-00c04fb951ed}"), TGUID)
  ' pero no encuentro un equivalente en NET de IIDFromString
  ' encontre por ahi que se podia crear un Guid asi, estara bien?
  TGUID = New Guid(strvalue)
 
  Dim hDev As Long  
  hDev = SetupDiGetClassDevs(TGUID, &H0, &H0, &H12)

  If hDev = -1 Then
  return "No hay nada"
  Exit Function
  End If
 
  DTA.cbSize = Len(DTA)
  DTL.cbSize = &H5
 
  Dim dia As  SP_DEVICE_INTERFACE_DATA  
  dia.cbSize = &H0  
   
  Dim dd As SP_DEVINFO_DATA
  dd.cbSize = &H0
  cad = ""
  lCount = 0
  Dim nulo As new SP_DEVICE_INTERFACE_DETAIL_DATA

  ' Esto era asi
  'do while not (SetupDiEnumDeviceInterfaces(hDev, &H0, TGUID, lCount, DTA) = &H0)
  ' Entra en un bucle interminable,que estoy haciendo mal?
  do While not SetupDiEnumDeviceInterfaces(hDev, dia , TGUID, lCount, DTA)

    ' Tengo mis dudas si estoy utilizando bien las funciones
    'call SetupDiGetDeviceInterfaceDetail(hDev, DTA, ByVal &H0, &H0, lSize, ByVal &H0)      
    Call SetupDiGetDeviceInterfaceDetail(hDev, dia, nulo , &H0, lSize, dd)      

    ' Call SetupDiGetDeviceInterfaceDetail(hDev, DTA, DTL, ByVal lSize, &H0, ByVal &H0)
    call SetupDiGetDeviceInterfaceDetail(hDev, DTA, DTL, lSize, &H0, dd)
   
    If UBound(Split(DTL.strDevicePath, "#")) > 1 Then
      cad = cad & Split(UCase(DTL.strDevicePath), "#")(2) & Chr(&HD)      
    End If    
    lCount = lCount + 1
  loop
  Call SetupDiDestroyDeviceInfoList(hDev)
 
  If cad = "" Then cad = "No hay conexiones"
  return cad
End Function


Si alguien tiene sugerencias o alguna informacion sobre las funciones de la API que comento, se los

agradeceria.

Saludos.

[Hasseds]

   ' esto era: Call IIDFromString(StrPtr("{a5dcbf10-6530-11d2-901f-00c04fb951ed}"), TGUID)
   ' pero no encuentro un equivalente en NET de IIDFromString
   ' encontre por ahi que se podia crear un Guid asi, estara bien?

   TGUID = New Guid(strvalue)
   
 

Fijate si esto ayuda

http://bytes.com/topic/visual-basic-net/answers/381152-how-declare-globally-unique-identifier-guid

[Maurice_Lupin]

Muchas gracias Hasseds por todo, logre solucionar hoy en la madrugada. Voy a postear el codigo, también encontre como detectar cuando se conecta/desconecta un USB. Lo posteo aqui mismo?

[Maurice_Lupin]

Yo utilizo el IDE http://www.icsharpcode.net/OpenSource/SD/Default.aspx para programar en VB.Net. Casi lo mismo que el VB.net 2005. Sólo que no hay que pagar licencia, eso lei. Corrijanme si estoy equivocado.

Gracias a Hasseds.

En esta pagina encontre buena info para llamar a las funciones de la API en VB.NET
http://pinvoke.net/default.aspx/setupapi.SetupDiEnumDeviceInterfaces

Código (vbnet) [Seleccionar] Expandir



Imports System.Runtime.InteropServices
  <StructLayout(LayoutKind.Sequential, Pack := 1)> _
Public Structure DeviceInterfaceData
Public Size As Integer
Public InterfaceClassGuid As Guid
Public Flags As Integer
Public Reserved As Integer
End Structure

<StructLayout(LayoutKind.Sequential, Pack := 1)> _
Public Structure DeviceInterfaceDetailData
Public Size As Integer
<MarshalAs(UnmanagedType.ByValTStr, SizeConst := 256)> _
Public DevicePath As String
End Structure
   
   ' SetupDiGetClassDevs: Retorna información sobre el dispositivo
   <DllImport("setupapi.dll",EntryPoint:="SetupDiGetClassDevsW", SetLastError:=True, _
   CharSet:=CharSet.Unicode, ExactSpelling:=True, PreserveSig:=True, _
   CallingConvention:=CallingConvention.Winapi)> _
   Private Shared Function SetupDiGetClassDevs( _
   ByRef ClassGuid As GUID, _
   ByVal Enumerator As Integer, _
   ByVal hwndParent As Integer, _
   ByVal Flags As Integer) As Integer
   End Function    
     
 
  ' SetupDiDestroyDeviceInfoList
   <DllImport("setupapi.dll", _
   EntryPoint:="SetupDiDestroyDeviceInfoList", _
   SetLastError:=True, _
   ExactSpelling:=True, _
   PreserveSig:=True, _
   CallingConvention:=CallingConvention.Winapi)> _
   Private Shared Function SetupDiDestroyDeviceInfoList( _
   ByVal DeviceInfoSet As Integer) As Boolean
   End Function
 
   <DllImport("setupapi.dll", SetLastError := True)> _
Public Shared Function SetupDiEnumDeviceInterfaces(ByVal lpDeviceInfoSet As IntPtr, ByVal nDeviceInfoData As UInteger, ByRef gClass As Guid, ByVal nIndex As UInteger, ByRef oInterfaceData As DeviceInterfaceData) As Boolean
End Function

<DllImport("setupapi.dll", SetLastError := True)> _
Public Shared Function SetupDiGetDeviceInterfaceDetail(ByVal lpDeviceInfoSet As IntPtr, ByRef oInterfaceData As DeviceInterfaceData, ByVal lpDeviceInterfaceDetailData As IntPtr, ByVal nDeviceInterfaceDetailDataSize As UInteger, ByRef nRequiredSize As UInteger, ByVal lpDeviceInfoData As IntPtr) As Boolean
End Function

<DllImport("setupapi.dll", SetLastError := True)> _
Public Shared Function SetupDiGetDeviceInterfaceDetail(ByVal lpDeviceInfoSet As IntPtr, ByRef oInterfaceData As DeviceInterfaceData, ByRef oDetailData As DeviceInterfaceDetailData, ByVal nDeviceInterfaceDetailDataSize As UInteger, ByRef nRequiredSize As UInteger, ByVal lpDeviceInfoData As IntPtr) As Boolean
End Function    
   

' Funcion
Public Function FlashSerials() As String
  Dim TGUID As GUID
  Dim lCount       As UInt32
  Dim lSize        As Integer = &H0
  Dim DTL          As new DeviceInterfaceDetailData
  Dim DTA          As new DeviceInterfaceData
  Dim cad as String        
  TGUID = New Guid("{a5dcbf10-6530-11d2-901f-00c04fb951ed}")  
 
  Dim hDev As IntPtr = SetupDiGetClassDevs( TGUID, &H0 ,&H0, &H12)
 
  If hDev = -1 Then
  return "Nada"
  Exit Function
  End If  
 
  DTA.Size  = Marshal.SizeOf(DTA)
  DTL.Size = &H5  
  cad = ""
  lCount = 0
 
  While SetupDiEnumDeviceInterfaces(hDev, &H0, TGUID, lCount, DTA)
 
     If Not SetupDiGetDeviceInterfaceDetail(hDev, DTA, IntPtr.Zero , 0, lSize, IntPtr.Zero ) Then        
    If SetupDiGetDeviceInterfaceDetail(hDev, DTA, DTL , lSize, lSize, IntPtr.Zero) Then        
    If Ubound(Split(DTL.DevicePath ,"#"))>1 then
       cad = cad & Split(Ucase(DTL.DevicePath) ,"#")(2)  & chr(10)
    End If    
End If
 End if
     lCount = lCount + 1
  End while  
  SetupDiDestroyDeviceInfoList(hDev)
  If cad = "" Then cad = "No hay conexiones"  
  return cad
End Function



Es codigo lo encontre en
http://tempuzfugit.wordpress.com/2007/06/05/deteccion-de-insercion-de-disco/

Código (vbnet) [Seleccionar] Expandir


' Al sobreescribir este Metodo se puede detectar la acción de conectar/desconectar USB
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)

 'Se ha producido un cambio en los dispositivos
 Const deviceChange As Integer = &H219
 
 'El sistema detecta un nuevo dispositivo
 Const deviceArrival As Integer = &H8000
 
 'Dispositivo extraído del sistema
 Const deviceRemoveComplete As Integer = &H8004
 
 ' Volumen lógico (Se ha insertado un disco)
 Const deviceTypeVolume As Integer = &H2

 Select Case m.Msg
  'Cambian los dispositivos del sistema
  Case deviceChange
  Select Case m.WParam.ToInt32
  'Llegada de un dispositivo
 Case deviceArrival
   Dim devType As Integer = Marshal.ReadInt32(m.LParam, 4)
   'Si es un volumen lógico..(unidad de disco)
   If devType = deviceTypeVolume Then
  msgbox("Se inserto: " & FlashSerials())
 End If
 Case deviceRemoveComplete
 MessageBox.Show("Se retiró el dispositivo.")
 End Select
 End Select
 
 'Ahora se usa el manejador predeterminado
 MyBase.WndProc(m)
End Sub