OpenProcess

本文详细介绍了Windows操作系统中OpenProcess函数的使用方法。该函数用于获取现有进程对象的句柄,并可在需要进程句柄的各种函数中使用,前提是请求了适当的访问权限。文章还提到了如何通过CloseHandle函数关闭句柄。

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This function returns a handle to an existing process object.

HANDLE OpenProcess( 
  DWORD fdwAccess, 
  BOOL fInherit, 
  DWORD IDProcess
);
Parameters
fdwAccess
[in] Not supported; set to zero.
fInherit
[in] Not supported; set to FALSE.
IDProcess
[in] Specifies the process identifier of the process to open.
Return Values

An open handle to the specified process indicates success. NULL indicates failure. To get extended error information, call GetLastError.

Remarks

The handle returned by the OpenProcess function can be used in any function that requires a handle to a process, such as the wait functions, provided the appropriate access rights were requested.

When you are finished with the handle, be sure to close it using the CloseHandle function.

Requirements

OS Versions: Windows CE 2.0 and later.
Header: Winbase.h.
Link Library: Coredll.lib.

See Also

CloseHandle | CreateProcess | GetCurrentProcessId

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