Kernel32DuplicateHandle(IntPtr, IntPtr, IntPtr, IntPtr, ProcessAccessRights, Boolean, DuplicateHandleOptions) Method

[DllImportAttribute("Kernel32.dll", SetLastError = true)]
public static bool DuplicateHandle(
	IntPtr srcProcHandle,
	IntPtr srcHandle,
	IntPtr dstProcHandle,
	ref IntPtr refDstHandle,
	ProcessAccessRights desiredAccess,
	bool inheritHandle,
	DuplicateHandleOptions options
)

<DllImportAttribute("Kernel32.dll", SetLastError := true>]
Public Shared Function DuplicateHandle ( 
	srcProcHandle As IntPtr,
	srcHandle As IntPtr,
	dstProcHandle As IntPtr,
	ByRef refDstHandle As IntPtr,
	desiredAccess As ProcessAccessRights,
	inheritHandle As Boolean,
	options As DuplicateHandleOptions
) As Boolean

Dim srcProcHandle As IntPtr
Dim srcHandle As IntPtr
Dim dstProcHandle As IntPtr
Dim refDstHandle As IntPtr
Dim desiredAccess As ProcessAccessRights
Dim inheritHandle As Boolean
Dim options As DuplicateHandleOptions

Dim returnValue As Boolean

returnValue = Kernel32.DuplicateHandle(srcProcHandle, 
	srcHandle, dstProcHandle, refDstHandle, 
	desiredAccess, inheritHandle, options)

public:
[DllImportAttribute(L"Kernel32.dll", SetLastError = true)]
static bool DuplicateHandle(
	IntPtr srcProcHandle, 
	IntPtr srcHandle, 
	IntPtr dstProcHandle, 
	IntPtr% refDstHandle, 
	ProcessAccessRights desiredAccess, 
	bool inheritHandle, 
	DuplicateHandleOptions options
)

[<DllImportAttribute("Kernel32.dll", SetLastError = true)>]
static member DuplicateHandle : 
        srcProcHandle : IntPtr * 
        srcHandle : IntPtr * 
        dstProcHandle : IntPtr * 
        refDstHandle : IntPtr byref * 
        desiredAccess : ProcessAccessRights * 
        inheritHandle : bool * 
        options : DuplicateHandleOptions -> bool 

No code example is currently available or this language may not be supported.

Parameters

srcProcHandle  IntPtr

A handle to the process with the handle to be duplicated.

The handle must have the DuplicateHandle access right.

srcHandle  IntPtr

The handle to be duplicated.

This is an open object handle that is valid in the context of the source process.

dstProcHandle  IntPtr

A handle to the process that is to receive the duplicated handle.

The handle must have the DuplicateHandle access right.

refDstHandle  IntPtr

A pointer to a variable that receives the duplicate handle.

This handle value is valid in the context of the target process.

If srcHandle is a pseudo handle returned by GetCurrentProcess or GetCurrentThread, DuplicateHandle(IntPtr, IntPtr, IntPtr, IntPtr, GenericAccessRights, Boolean, DuplicateHandleOptions) converts it to a real handle to a process or thread, respectively.

If refDstHandle is Zero, the function duplicates the handle, but does not return the duplicate handle value to the caller. This behavior exists only for backward compatibility with previous versions of this function. You should not use this feature, as you will lose system resources until the target process terminates.

desiredAccess  ProcessAccessRights

The access requested for the new handle.

inheritHandle  Boolean

A variable that indicates whether the handle is inheritable.

If , the duplicate handle can be inherited by new processes created by the target process.

If , the new handle cannot be inherited.

options  DuplicateHandleOptions

Optional actions. This parameter can be zero.

Return Value

If the function fails, the return value is .

To get extended error information, call GetLastWin32Error.

Reference