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wwDotnetBridge.prg
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wwDotnetBridge.prg
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SET PROCEDURE TO wwDotnetBridge ADDITIVE
*** This flag defines West Wind's commercial version
*** The open source version should be set to .F.
#DEFINE IS_WESTWIND .F.
#DEFINE IS_LEGACY .T.
#IF IS_WESTWIND
#DEFINE WWC_CLR_HOSTDLL wwipstuff.dll
*** Other dependencies
* .NET Runtime 2.0 or later
*** DLLs
* wwIpStuff.dll
* wwDotnetBridge.dll
* NewtonSoft.Json.dll - ToJson()/FromJson() only
#ELSE
#DEFINE WWC_CLR_HOSTDLL clrhost.dll
*** Other dependencies
* .NET Runtime 2.0 or later
*** DLLs
* clrhost.dll
* wwDotnetBridge.dll
#ENDIF
************************************************************************
* GetwwDotNetBridge
****************************************
*** Function: Factory class to feed a reusable and stored instance
*** of the wwDotNetBridge class.
*** Assume: Depends on wwutils.prg
*** Pass:
*** Return:
************************************************************************
FUNCTION GetwwDotNetBridge(lcVersion, llUseCom)
IF VARTYPE(__DOTNETBRIDGE) != "O"
IF EMPTY(lcVersion)
lcVersion = "V4"
ENDIF
PUBLIC __DOTNETBRIDGE
__DOTNETBRIDGE = CREATEOBJECT("wwDotNetBridge",lcVersion, llUseCom)
IF VARTYPE(__DOTNETBRIDGE) # "O"
RETURN NULL
ENDIF
ENDIF
RETURN __DOTNETBRIDGE
ENDFUNC
************************************************************************
* InitializeDotnetVersion()
****************************************
*** Function: Explicit method that simply creates a wwDotnetBridge
*** instance. Call this method at the beginning of your
*** app to force the .NET Runtime version that will be
*** used throughout the entire application.
*** Assume: Call this method in your application startup
*** Pass: "V4" or "V2"
*** Return: wwDotnetBridge instance
*** (you don't have to do anything with it)
************************************************************************
FUNCTION InitializeDotnetVersion(lcVersion,llUseCom)
RETURN GetwwDotnetBridge(lcVersion,llUseCom)
ENDFUNC
*************************************************************
DEFINE CLASS wwDotNetBridge AS Custom
*************************************************************
*: Author: Rick Strahl
*: (c) West Wind Technologies, 2007-2016
*:Contact: http://www.west-wind.com
*:Created: 05/10/2007
*:Updated: 6/06/2016
*************************************************************
#IF .F.
*:Help Documentation
*:Topic:
Class wwDotNetBridge
*:Description:
http://www.west-wind.com/webconnection/docs?page=_24n1cfw3a.htm
*:Example:
*:Remarks:
*:SeeAlso:
*:ENDHELP
#ENDIF
*** Custom Properties
*** Stock Properties
oDotNetBridge = null
cErrorMsg = ""
lError = .f.
oLastException = null
FUNCTION oLastException_Access()
RETURN this.oDotNetBridge.LastException
ENDFUNC
*** Default CLR Version. Note: you can override
*** this by specify V2,V4 in the Init() of the class
cClrVersion = "v4.0.30319"
lUseCom = .F.
lThrowOnError = .F.
FUNCTION lThrowOnError_Assign(llValue)
THIS.lThrowOnError = llValue
IF !ISNULL(THIS.oDotnetBridge)
this.oDotNetBridge.IsThrowOnErrorEnabled = llValue
ENDIF
ENDFUNC
*** Don't set here: Use CREATEOBJECT("wwDotNetBridge","V4")
*cClrVersion = "v4.0.30319"
************************************************************************
* wwDotnetBridge :: Init
****************************************
*** Function: Initializes the .NET runtime inside of FoxPro
*** Assume: Calls Load() to actual perform load operation
*** Pass: lcVersion - specific .NET Version or
*** simplified "V2", "V4"
*** llUseCom - if .T. loads .NET Bridge via
*** plain COM interop rather than
*** hosting .NET runtime itself.
*** If you do COM
*** Return: nothing
************************************************************************
FUNCTION Init(lcVersion, llUseCom)
IF !EMPTY(lcVersion)
LOCAL lcShortVer
lcShortVer = UPPER(lcVersion)
DO CASE
CASE lcShortVer == "V4"
lcVersion = "v4.0.30319"
CASE lcShortVer == "V2"
lcVersion = "v2.0.50727"
ENDCASE
this.cClrVersion = lcVersion
ENDIF
this.lUseCom = llUseCom
*** Fail creation if the object couldn't be created
IF ISNULL(this.Load())
ERROR this.cErrorMsg
RETURN .F.
ENDIF
ENDFUNC
* wwDotnetBridge :: Init
************************************************************************
* Load
****************************************
*** Function: Creates an instance of the .NET Bridge component
*** that allows loading of content.
*** Assume: Define as LOCAL obridge as Westwind.WebConnection.wwDotNetBridge
*** Return: nothing
************************************************************************
FUNCTION Load()
LOCAL lcError, lnSize, lnDispHandle, lcPath, lcCmd
IF VARTYPE(this.oDotNetBridge) != "O"
this.SetClrVersion(this.cClrVersion)
IF this.lUseCom
this.oDotNetBridge = CREATEOBJECT("Westwind.wwDotNetBridge")
ELSE
*** Remove the Zone Identifier to 'Unblock'
DECLARE INTEGER DeleteFile IN WIN32API STRING
DeleteFile(FULLPATH("wwDotNetBridge.dll") + ":Zone.Identifier")
#IF IS_WESTWIND
DeleteFile(FULLPATH("Newtosoft.Json.dll") + ":Zone.Identifier")
DeleteFile(FULLPATH("Markdig.dll") + ":Zone.Identifier")
DeleteFile(FULLPATH("Renci.SshNet.dll") + ":Zone.Identifier")
#ENDIF
*** Load by filename - assumes the wwDotNetBridge.dll is in the Fox path
DECLARE Integer ClrCreateInstanceFrom IN WWC_CLR_HOSTDLL string, string, string@, integer@
lcError = SPACE(2048)
lnSize = 0
lnDispHandle = ClrCreateInstanceFrom(FULLPATH("wwDotNetBridge.dll"),;
"Westwind.WebConnection.wwDotNetBridge",@lcError,@lnSize)
IF lnDispHandle < 1
lcError = LEFT(lcError,lnSize)
this.SetError( "Unable to load Clr Instance. " + lcError + CHR(13) +;
"Most likely wwDotnetBridge.dll is blocked or you don't have network permissions to load the assembly." + CHR(13)+;
"Search for: 'Unable to load CLR Instance' at: https://webconnection.west-wind.com/docs" )
RETURN NULL
ENDIF
*** Turn handle into IDispatch COM object
this.oDotNetBridge = SYS(3096, lnDispHandle)
*** Explicitly AddRef here - otherwise weird shit happens when objects are released
SYS(3097, this.oDotNetBridge)
IF ISNULL(this.oDotNetBridge)
this.SetError("COM Load Error: Can't access CLR COM reference.")
RETURN null
ENDIF
ENDIF
this.oDotNetBridge.LoadAssembly("System")
this.oDotNetBridge.IsThrowOnErrorEnabled = this.lThrowOnError
ENDIF
RETURN this.oDotNetBridge
ENDFUNC
* CreateDotNetBridge
************************************************************************
* SetClrVersion
****************************************
*** Function: Sets the CLR Version that this runtime uses. Note
*** this method must be called before this.Load() is
*** called and the runtime is instantiated for the very
*** first time.
*** Pass: lcVersion - Clr version in the format of "v4.0.30319"
*** Return: nothing
************************************************************************
PROTECTED FUNCTION SetClrVersion(lcVersion)
DECLARE Integer SetClrVersion IN WWC_CLR_HOSTDLL AS SetClrVersionApi string
SetClrVersionApi(lcVersion)
ENDFUNC
* SetClrVersion
************************************************************************
* Unload
****************************************
*** Function: Unloads the CLR and AppDomain
*** Assume: Don't call this unless you want to explicity force
*** the AppDomain to be unloaded and a new one to be spun
*** up. Generally a single domain shoudl be sufficient.
*** Pass:
*** Return:
************************************************************************
FUNCTION Unload()
IF VARTYPE(this.oDotNetBridge) == "O"
this.oDotNetBridge = NULL
DECLARE Integer ClrUnload IN WWC_CLR_HOSTDLL
ClrUnload()
ENDIF
ENDFUNC
* Unload
FUNCTION EnableThrowOnError()
this.oDotNetBridge.IsThrowOnErrorEnabled = .T.
ENDFUNC
************************************************************************
* CreateInstance
****************************************
*** Function: Creates an instance of a .NET class by full assembly
*** name or local file name.
*** Assume: Relies on wwDotNetBridgeW32.dll and wwDotNetBridge.dll
*** Pass: lcClass - MyNamespace.MyClass
*** lvParmN - Up to 3 Constructor Parameters
*** Return: Instance or NULL
************************************************************************
FUNCTION CreateInstance(lcClass,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
LOCAL lnDispHandle, lnSize, loBridge, loObject, lnParmCount
this.SetError()
loBridge = this.oDotnetBridge
IF ISNULL(loBridge)
RETURN NULL
ENDIF
lnParmCount = PCOUNT()
DO CASE
CASE lnParmCount = 1
loObject = loBridge.CreateInstance(lcClass)
CASE lnParmCount = 2
loObject = loBridge.CreateInstance_OneParm(lcClass,lvParm1)
CASE lnParmCount = 3
loObject = loBridge.CreateInstance_TwoParms(lcClass,lvParm1, lvParm2)
CASE lnParmCount = 4
loObject = loBridge.CreateInstance_ThreeParms(lcClass,lvParm1, lvParm2, lvParm3)
CASE lnParmCount = 5
loObject = loBridge.CreateInstance_FourParms(lcClass,lvParm1, lvParm2, lvParm3, lvParm4)
CASE lnParmCount = 6
loObject = loBridge.CreateInstance_FiveParms(lcClass,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
OTHERWISE
loObject = loBridge.CreateInstance(lcClass)
ENDCASE
IF ISNULL(loObject) OR loBridge.Error
this.SetError( loBridge.ErrorMessage )
RETURN NULL
ENDIF
RETURN loObject
ENDFUNC
************************************************************************
* CreateInstanceOnType
****************************************
*** Function: Creates an instance of a .NET class by full assembly
*** name or local file name.
*** Assume: Relies on wwDotNetBridgeW32.dll and wwDotNetBridge.dll
*** Pass: lcClass - MyNamespace.MyClass
*** lvParmN - Up to 5 Constructor Parameters
*** Return: Instance or NULL
************************************************************************
FUNCTION CreateInstanceOnType(loInstance, lcProperty, lcClass,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
LOCAL lnDispHandle, lnSize, loBridge, loObject, lnParmCount
this.SetError()
loBridge = this.oDotnetBridge
IF ISNULL(loBridge)
RETURN NULL
ENDIF
lnParmCount = PCOUNT()
DO CASE
CASE lnParmCount = 4
loObject = loBridge.CreateInstanceOnType_OneParm(loInstance,lcProperty, lcClass,lvParm1)
CASE lnParmCount = 5
loObject = loBridge.CreateInstanceOnType_TwoParms(loInstance,lcProperty,lcClass,lvParm1, lvParm2)
CASE lnParmCount = 6
loObject = loBridge.CreateInstanceOnType_ThreeParms(loInstance,lcProperty,lcClass,lvParm1, lvParm2, lvParm3)
CASE lnParmCount = 7
loObject = loBridge.CreateInstanceOnType_FourParms(loInstance,lcProperty,lcClass,lvParm1, lvParm2, lvParm3, lvParm4)
CASE lnParmCount = 8
loObject = loBridge.CreateInstanceOnType_FiveParms(loInstance,lcProperty,lcClass,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
OTHERWISE
loObject = loBridge.CreateInstanceOnType(loInstance,lcProperty,lcClass)
ENDCASE
IF ISNULL(loObject) OR loBridge.Error
this.SetError( loBridge.ErrorMessage )
RETURN .F.
ENDIF
RETURN .T.
ENDFUNC
************************************************************************
* InvokeMethod
****************************************
*** Function: Invokes an instance method on an object
*** Assume: Use when direct COM access doesn't work for things like collections/generics etc.
*** Pass:
*** Return:
************************************************************************
FUNCTION InvokeMethod(loObject, lcMethod, lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,;
lvParm6, lvParm7, lvParm8, lvParm9, lvParm10,;
lvParm11, lvParm12, lvParm13, lvParm14, lvParm15,;
lvParm16, lvParm17, lvParm18, lvParm19, lvParm20,;
lvParm21, lvParm22, lvParm23, lvParm24)
LOCAL loBridge, lnParms, loResult
this.SetError()
loBridge = this.oDotNetBridge
lnParms = PCOUNT()
loResult = NULL
DO CASE
CASE lnParms = 2
loResult = loBridge.InvokeMethod(loObject, lcMethod)
CASE lnParms = 3
loResult = loBridge.InvokeMethod_OneParm(loObject, lcMethod, lvParm1)
CASE lnParms = 4
loResult = loBridge.InvokeMethod_TwoParms(loObject, lcMethod,lvParm1, lvParm2)
CASE lnParms = 5
loResult = loBridge.InvokeMethod_ThreeParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3)
CASE lnParms = 6
loResult = loBridge.InvokeMethod_FourParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4)
CASE lnParms = 7
loResult = loBridge.InvokeMethod_FiveParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
CASE lnParms = 8
loResult = loBridge.InvokeMethod_SixParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6)
CASE lnParms = 9
loResult = loBridge.InvokeMethod_SevenParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7)
CASE lnParms = 10
loResult = loBridge.InvokeMethod_EightParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8)
CASE lnParms = 11
loResult = loBridge.InvokeMethod_NineParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9)
CASE lnParms = 12
loResult = loBridge.InvokeMethod_TenParms(loObject, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
OTHERWISE
LOCAL loArray as Westwind.WebConnection.ComArray
loArray = this.CreateArray("System.Object")
LOCAL lvParm
FOR lnX = 1 TO lnParms-2
lvParm = EVALUATE("lvParm" + TRANSFORM(lnX))
loArray.AddItem(lvParm)
ENDFOR
RETURN THIS.InvokeMethod_ParameterArray(loObject, lcMethod, loArray)
ENDCASE
IF loBridge.Error
this.cErrorMsg = loBridge.ErrorMessage
this.lError = .T.
ENDIF
RETURN loResult
ENDFUNC
* InvokeMethod
************************************************************************
* InvokeMethod_ParameterArray
****************************************
*** Function: Invokes an instance method on an object
*** Assume: Use when direct COM access doesn't work for things like collections/generics etc.
*** Pass:
*** Return:
************************************************************************
FUNCTION InvokeMethod_ParameterArray
LPARAMETERS loObject, lcMethod, laParms
LOCAL loBridge, loResult, lnX
IF .F.
LOCAL ARRAY laParms[1] && Compiler needs this or compile error
ENDIF
this.SetError()
LOCAL loBridge as Westwind.wwDotNetBridge
loBridge = this.oDotNetBridge
LOCAL loArray as Westwind.WebConnection.ComArray
loArray = this.CreateInstance("Westwind.WebConnection.ComArray")
loArray.Create("System.Object")
DO CASE
CASE TYPE("laParms.Instance") # "U"
*** It's already a parameter array
loArray = laParms
CASE TYPE("ALEN(laParms)") = "N"
*** It's a Fox array
lnsize = ALEN(laParms)
FOR lnX = 1 TO lnSize
loArray.AddItem(laParms[lnX])
ENDFOR
CASE TYPE("laParms.Count") = "N"
*** It's a .NET array/collection
FOR lnX =1 TO laParms.Count
loArray.AddItem(laParms[lnX])
ENDFOR
ENDCASE
loResult = loBridge.InvokeMethod_ParameterArray(loObject, lcMethod, loArray)
IF loBridge.Error
this.cErrorMsg = loBridge.ErrorMessage
this.lError = .T.
ENDIF
RETURN loResult
ENDFUNC
* InvokeMethod
************************************************************************
* InvokeMethodAsync
****************************************
*** Function: Invokes a method in .NET Asynchronously on a new thread
*** Pass: loCallbackEvents - CallbackAsyncEvents object
*** Implement OnCompleted() and OnError()
*** loInstance - Instance of object to call
*** lcMethod - Method on instance to call
*** lvParm1-10 - 0 - 10 parameters
*** Return: nothing
************************************************************************
FUNCTION InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod, lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
LOCAL lnParms
lnParms = PCOUNT()
LOCAL loBridge as wwDotNetBridge
loBridge = this.oDotnetBridge
DO CASE
CASE lnParms = 3
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod)
CASE lnParms = 4
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1)
CASE lnParms = 5
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1,lvParm2)
CASE lnParms = 6
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3)
CASE lnParms = 7
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4)
CASE lnParms = 8
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
CASE lnParms = 9
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6)
CASE lnParms = 10
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7)
CASE lnParms = 11
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8)
CASE lnParms = 12
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9)
CASE lnParms = 13
loBridge.InvokeMethodAsync(loCallbackEvents,loInstance,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
ENDCASE
ENDFUNC
* InvokeMethodAsync
************************************************************************
* InvokeMethodAsync
****************************************
*** Function: Invokes a static method in .NET Asynchronously on a new thread
*** Pass: loCallbackEvents - CallbackAsyncEvents object
*** Implement OnCompleted() and OnError()
*** lcTypeName - .NET Type on which static method lives
*** lcMethod - Method on instance to call
*** lvParm1-10 - 0 - 10 parameters
*** Return: nothing
************************************************************************
FUNCTION InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod, lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
LOCAL lnParms, loBridge as wwDotNetBridge
lnParms = PCOUNT()
loBridge = this.oDotnetBridge
DO CASE
CASE lnParms = 3
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod)
CASE lnParms = 4
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1)
CASE lnParms = 5
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1,lvParm2)
CASE lnParms = 6
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3)
CASE lnParms = 7
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4)
CASE lnParms = 8
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
CASE lnParms = 9
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6)
CASE lnParms = 10
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7)
CASE lnParms = 11
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8)
CASE lnParms = 12
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9)
CASE lnParms = 13
loBridge.InvokeStaticMethodAsync(loCallbackEvents,lcTypeName,lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5, lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
ENDCASE
ENDFUNC
* InvokeMethodAsync
************************************************************************
* GetProperty
****************************************
*** Function: Gets a property from a .NET object
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION GetProperty(loInstance,lcProperty)
RETURN this.oDotNetBridge.GetProperty(loInstance, lcProperty)
ENDFUNC
* GetProperty
************************************************************************
* GetIndexedProperty
****************************************
*** Function: Returns a value from an indexed property of an array
*** or a list.
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION GetIndexedProperty(loInstance, lnIndex)
RETURN this.oDotnetBridge.GetIndexedProperty(loInstance,lnIndex)
ENDFUNC
* GetIndexedProperty
************************************************************************
* SetProperty
****************************************
*** Function: Sets a property on a .NET object
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION SetProperty(loInstance, lcProperty, lvValue)
this.oDotNetBridge.SetProperty(loInstance, lcProperty, lvValue)
ENDFUNC
* SetProperty
************************************************************************
* InvokeStaticMethod
****************************************
*** Function: Calls a static .NET method with up to 5 parameters
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION InvokeStaticMethod(lcTypeName, lcMethod, lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,;
lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
LOCAL loBridge, lnParms, loResult
this.SetError()
loBridge = this.oDotNetBridge
lnParms = PCOUNT()
loResult = NULL
DO CASE
CASE lnParms = 3
loResult = loBridge.InvokeStaticMethod_OneParm(lcTypeName, lcMethod, lvParm1)
CASE lnParms = 4
loResult = loBridge.InvokeStaticMethod_TwoParms(lcTypeName, lcMethod,lvParm1, lvParm2)
CASE lnParms = 5
loResult = loBridge.InvokeStaticMethod_ThreeParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3)
CASE lnParms = 6
loResult = loBridge.InvokeStaticMethod_FourParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4)
CASE lnParms = 7
loResult = loBridge.InvokeStaticMethod_FiveParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5)
CASE lnParms = 8
loResult = loBridge.InvokeStaticMethod_SixParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,lvParm6)
CASE lnParms = 9
loResult = loBridge.InvokeStaticMethod_SevenParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,lvParm6, lvParm7)
CASE lnParms = 10
loResult = loBridge.InvokeStaticMethod_EightParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,lvParm6, lvParm7, lvParm8)
CASE lnParms = 11
loResult = loBridge.InvokeStaticMethod_NineParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,lvParm6, lvParm7, lvParm8, lvParm9)
CASE lnParms = 12
loResult = loBridge.InvokeStaticMethod_TenParms(lcTypeName, lcMethod,lvParm1, lvParm2, lvParm3, lvParm4, lvParm5,lvParm6, lvParm7, lvParm8, lvParm9, lvParm10)
OTHERWISE
loResult = loBridge.InvokeStaticMethod(lcTypeName, lcMethod)
ENDCASE
IF loBridge.Error
this.cErrorMsg = loBridge.ErrorMessage
this.lError = .T.
ENDIF
RETURN loResult
ENDFUNC
* InvokeStaticMethod
************************************************************************
* GetStaticProperty
****************************************
*** Function: Retrieves a static property value from a type
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION GetStaticProperty(lcType, lcProperty)
LOCAL loBridge, lvResult
this.SetError()
loBridge = this.oDotNetBridge
lvResult = loBridge.GetStaticProperty(lcType, lcProperty)
IF loBridge.Error
this.SetError(loBridge.ErrorMessage)
RETURN NULL
ENDIF
RETURN lvResult
ENDFUNC
* GetStaticProperty
************************************************************************
* GetEnumValue
****************************************
*** Function: Retrieves an Enum value as a number from a string representation
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION GetEnumValue(lcType, lcProperty)
IF !EMPTY(lcProperty)
RETURN this.GetStaticProperty(lcType, lcProperty)
ENDIF
*** Assume we're passing the type and enum name as one string
lnAt = RAT(".",lcType)
IF lnAt < 1
RETURN NULL
ENDIF
lcProperty = SUBSTR(lcType,lnAt+1)
lcType = SUBSTR(lcType,1,lnAt-1)
RETURN this.GetStaticProperty(lcType, lcProperty)
ENDFUNC
* GetEnumValue
************************************************************************
* wwDotnetBridge :: GetEnumString
****************************************
*** Function: Retrieves the enum field name from an enum value
*** Assume:
*** Pass: lvEnumValue - The Enum value to retrieve string for
*** Return:
************************************************************************
FUNCTION GetEnumString(lcEnumTypeName,lvEnumValue)
LOCAL lcValue
lcValue = THIS.oDotNetBridge.GetEnumString(lcEnumTypeName,lvEnumValue)
IF ISNULL(lcValue)
this.SetError(this.oDotNetBridge.ErrorMessage)
RETURN NULL
ENDIF
RETURN lcValue
ENDFUNC
* wwDotnetBridge :: GetEnumString
************************************************************************
* SetStaticProperty
****************************************
*** Function: Sets a static property value on a .NET type
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION SetStaticProperty(lcType,lcProperty,lcValue)
LOCAL loBridge, lvResult
loBridge = this.oDotNetBridge
IF !loBridge.SetStaticProperty(lcType, lcProperty, lcValue)
this.SetError(loBridge.ErrorMessage)
RETURN .F.
ENDIF
RETURN .T.
ENDFUNC
* SetStaticProperty
************************************************************************
* CreateArray
****************************************
*** Function: Creates an array of a given type and size on the specified
*** object instance.
*** Assume:
*** Pass:
*** Return: ComArray object with Instance,Length properties or null
************************************************************************
FUNCTION CreateArray(lvArrayInstanceOrElementTypeString)
LOCAL loComArray, lcType
lcType = VARTYPE(lvArrayInstanceOrElementTypeString)
DO CASE
CASE lcType = "X" OR EMPTY(lvArrayInstanceOrElementTypeString)
loComArray = this.oDotnetBridge.CreateInstance("Westwind.WebConnection.ComArray")
CASE lcType = "C"
loComArray = this.oDotnetBridge.CreateArray(lvArrayInstanceOrElementTypeString)
CASE lcType = "O"
loComArray = this.oDotnetBridge.CreateArrayFromInstance(lvArrayInstanceOrElementTypeString)
OTHERWISE
ERROR "Invalid parameter passed to CreateArray"
ENDCASE
IF ISNULL(loComArray)
THIS.SetError(this.oDotnetBridge.ErrorMessage)
RETURN null
ENDIF
RETURN loComArray
ENDFUNC
* CreateArray
************************************************************************
* CreateComValue
****************************************
*** Function: Creates a COM Value structure
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION CreateComValue(lvValue)
LOCAL loVal
loVal = this.CreateInstance("Westwind.WebConnection.ComValue")
if(PCOUNT()=1)
this.SetProperty(loVal,"Value",lvValue)
ENDIF
RETURN loVal
ENDFUNC
* CreateComValue
************************************************************************
* CreateArrayOnInstnace
****************************************
*** Function: Creates an array of a given type and size on the specified
*** object instance.
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION CreateArrayOnInstance(loBaseType, lcType, lnSize)
IF VARTYPE(lnSize) # "N"
IF !this.oDotNetBridge.CreateArrayOnInstanceWithObject(loBaseType, lcType, lnSize)
THIS.SetError(this.oDotnetBridge.ErrorMessage)
RETURN .F.
ENDIF
RETURN .T.
ENDIF
IF !this.oDotNetBridge.CreateArrayOnInstance(loBaseType, lcType, lnSize)
THIS.SetError(this.oDotnetBridge.ErrorMessage)
RETURN .F.
ENDIF
RETURN .T.
ENDFUNC
* CreateArray
************************************************************************
* AddArrayItem
****************************************
*** Function: Creates an item for an array and adds it to the array
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION AddArrayItem(loBaseType, lcArrayProperty, loValue)
IF !this.oDotNetBridge.AddArrayItem(loBaseType, lcArrayProperty,loValue)
this.SetError("Couldn't add item to array: " + this.oDotNetBridge.ErrorMessage)
RETURN .F.
ENDIF
RETURN .T.
ENDFUNC
* AddArrayItem
************************************************************************
* GetArrayItem
****************************************
*** Function: Returns an individual array item.
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION GetArrayItem(loBaseType, lcArrayProperty, lnIndex)
RETURN this.oDotNetBridge.GetArrayItem(loBaseType, lcArrayProperty,lnIndex)
ENDFUNC
* GetArrayItem
************************************************************************
* SetArrayItem
****************************************
*** Function: Sets an individual array item.
*** Assume: The array item must exist - ie. array is big enough
*** Pass:
*** Return:
************************************************************************
FUNCTION SetArrayItem(loBaseType, lcArrayProperty, lnIndex, lvValue)
RETURN this.oDotNetBridge.SetArrayItem(loBaseType, lcArrayProperty,lnIndex,lvValue)
ENDFUNC
* SetArrayItem
************************************************************************
* RemoveArrayItem
****************************************
*** Function:
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION RemoveArrayItem(loBaseType, lcArrayProperty, lnIndex)
IF !this.oDotNetBridge.RemoveArrayItem(loBaseType,lcArrayProperty, lnIndex)
this.SetError("Couldn't remove item from array: " + this.oDotnetBridge.ErrorMessage)
RETURN .F.
ENDIF
RETURN .T.
ENDFUNC
* RemoveArrayItem
************************************************************************
* GetType
****************************************
*** Function: Returns a .NET type reference to the value passed
*** Assume: Note this explicit method is required in order
*** to call GetType()
*** Pass:
*** Return:
************************************************************************
FUNCTION GetType(lvValue)
RETURN this.InvokeMethod(this.oDotnetBridge,"GetType",lvValue)
ENDFUNC
* GetType
************************************************************************
* GetTypeName
****************************************
*** Function: Returns a typename for an instance
*** Assume: Shortcut for InvokeMethod(instance,"ToString")
*** Pass:
*** Return:
************************************************************************
FUNCTION GetTypeName(lvValue)
RETURN this.InvokeMethod(lvValue,"ToString")
ENDFUNC
* GetTypeName
************************************************************************
* GetTypeFromName
****************************************
*** Function:
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION GetTypeFromName(lcTypeName)
RETURN this.InvokeMethod(this.oDotNetBridge,"GetTypeFromName",lcTypeName)
ENDFUNC
* GetTypeFromName
************************************************************************
* SubscribeToEvents
****************************************
*** Function: Handles all events of a source object for subsequent retrieval by calling WaitForEvent.
*** loSource: The object for which to subscribe to events.
*** loHandler: An object with a method OnEvent(loEventName, loParams).
*** lcPrefix: The initial part of the event handler function for each event. Defaults to "On".
*** Return: A subscription object. The subscription ends when this object goes out of scope.
************************************************************************
FUNCTION SubscribeToEvents(loSource, loHandler, lcPrefix)
IF EMPTY(lcPrefix)
lcPrefix = "On"
ENDIF
LOCAL loSubscription
loSubscription = CREATEOBJECT("EventSubscription")
loSubscription.Setup(this, loSource, loHandler, lcPrefix)
RETURN loSubscription
ENDFUNC
* SubscribeToEvents
************************************************************************
* DataSetToXmlAdapter
****************************************
*** Function:
*** Assume:
*** Pass:
*** Return:
************************************************************************
FUNCTION DataSetToXmlAdapter(loDs)
LOCAL lcXML
lcXML = this.InvokeMethod(this.oDotNetBridge,"DataSetToXmlString",loDs,.T.)
IF EMPTY(lcXml)
RETURN null
ENDIF
LOCAL loAdapter as XMLAdapter