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    • AppQuery
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Interface IDispatch

Exposes objects, methods and properties to programming tools and other applications that support Automation. COM components implement the IDispatch interface to enable access by Automation clients, such as Visual Basic.

Inherited Members
IUnknown.QueryInterface(Guid)
IUnknown.AddRef()
IUnknown.Release()
Namespace: Dapplo.Windows.Com
Assembly: Dapplo.Windows.Com.dll
Syntax
public interface IDispatch : IUnknown

Methods

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GetIDsOfNames(ref Guid, String[], Int32, Int32, Int32[])

Maps a single member and an optional set of argument names to a corresponding set of integer DISPIDs, which can be used on subsequent calls to Invoke.

Declaration
int GetIDsOfNames(ref Guid riid, string[] rgsNames, int cNames, int lcid, int[] rgDispId)
Parameters
Type Name Description
Guid riid
System.String[] rgsNames
System.Int32 cNames
System.Int32 lcid
System.Int32[] rgDispId
Returns
Type Description
System.Int32
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GetTypeInfo(Int32, Int32, out Type)

Retrieves the type information for an object, which can then be used to get the type information for an interface.

Declaration
int GetTypeInfo(int iTInfo, int lcid, out Type typeInfo)
Parameters
Type Name Description
System.Int32 iTInfo
System.Int32 lcid
Type typeInfo
Returns
Type Description
System.Int32
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GetTypeInfoCount(out Int32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).

Declaration
int GetTypeInfoCount(out int count)
Parameters
Type Name Description
System.Int32 count
Returns
Type Description
System.Int32
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Invoke(Int32, ref Guid, UInt32, UInt16, ref System.Runtime.InteropServices.ComTypes.DISPPARAMS, out Object, ref System.Runtime.InteropServices.ComTypes.EXCEPINFO, IntPtr[])

Provides access to properties and methods exposed by an object.

Declaration
int Invoke(int dispIdMember, ref Guid riid, uint lcid, ushort wFlags, ref System.Runtime.InteropServices.ComTypes.DISPPARAMS pDispParams, out object pVarResult, ref System.Runtime.InteropServices.ComTypes.EXCEPINFO pExcepInfo, IntPtr[] pArgErr)
Parameters
Type Name Description
System.Int32 dispIdMember
Guid riid
System.UInt32 lcid
System.UInt16 wFlags
System.Runtime.InteropServices.ComTypes.DISPPARAMS pDispParams
System.Object pVarResult
System.Runtime.InteropServices.ComTypes.EXCEPINFO pExcepInfo
IntPtr[] pArgErr
Returns
Type Description
System.Int32
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