Difference between revisions of "CANCELPID()"
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==Purpose== | ==Purpose== | ||
Function to cancel a sub-process | Function to cancel a sub-process | ||
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==Syntax== | ==Syntax== | ||
CANCELPID(<expN>) | CANCELPID(<expN>) | ||
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==See Also== | ==See Also== | ||
[[ACTIVEPID()]], [[GETGID()]], [[GETPID()]], [[GETUID()]], [[SPAWN]], [[SPAWNPID()]] | [[ACTIVEPID()]], [[GETGID()]], [[GETPID()]], [[GETUID()]], [[SPAWN]], [[SPAWNPID()]] | ||
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==Description== | ==Description== | ||
The CANCELPID() function returns .T. if the specified process ID <expN> could be "killed" and .F. otherwise. The SPAWNPID() function is used to get the process ID of the last process spawned. | The CANCELPID() function returns .T. if the specified process ID <expN> could be "killed" and .F. otherwise. The SPAWNPID() function is used to get the process ID of the last process spawned. | ||
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==Example== | ==Example== | ||
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</code> | </code> | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
| − | [[Category: | + | [[Category:Environment Functions]] |
| − | [[Category: | + | [[Category:Lianja VFP Extensions]] |
| + | [[Category:VFP Function Extensions]] | ||
Latest revision as of 07:03, 10 December 2012
Contents
Purpose
Function to cancel a sub-process
Syntax
CANCELPID(<expN>)
See Also
ACTIVEPID(), GETGID(), GETPID(), GETUID(), SPAWN, SPAWNPID()
Description
The CANCELPID() function returns .T. if the specified process ID <expN> could be "killed" and .F. otherwise. The SPAWNPID() function is used to get the process ID of the last process spawned.
Example
spawn db program m_activepid = spawnpid() if activepid(m->m_activepid) if cancelpid(m->m_activepid) dialog box "Process Canceled." else dialog box "Process couldn't be Canceled." endif else dialog box "There is no Process Active." endif
