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CreatePipe

The CreatePipe function creates an anonymous pipe, and returns handles to the read and write ends of the pipe.

VB4-32,5,6
Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As SECURITY_ATTRIBUTES, ByVal nSize As Long) As Long

Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later

Library
Kernel32

Parameter Information
hReadPipe
[out] Pointer to a variable that receives the read handle for the pipe.

hWritePipe
[out] Pointer to a variable that receives the write handle for the pipe.

lpPipeAttributes
[in] Pointer to a structure that determines whether the returned handle can be inherited by child processes. If lpPipeAttributes is NULL, the handle cannot be inherited.
Windows NT/2000: The lpSecurityDescriptor member of the structure specifies a security descriptor for the new pipe. If lpPipeAttributes is NULL, the pipe gets a default security descriptor.

nSize
[in] Specifies the buffer size for the pipe, in bytes. The size is only a suggestion; the system uses the value to calculate an appropriate buffering mechanism. If this parameter is zero, the system uses the default buffer size.

Return Values
If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Examples

Related Functions

 

 


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