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AX = 1680h
Return:
AL = status 00h if the call is supported 80h (unchanged) if the call is not supported
Notes:
Programs can use this function in idle loops to enhance performance
under multitaskers; this call is supported by MS Windows 3+, DOS 5+,
DPMI 1.0+, and in OS/2 2.0+ for multitasking DOS applications.
Does not block the program; it just gives up the remainder of the time
slice.
Should not be used by Windows-specific programs.
When called very often without intermediate screen output under
MS Windows 3.x, the VM will go into an idle-state and will not
receive the next slice before 8 seconds have elapsed. This time can
be changed in SYSTEM.INI through "IdleVMWakeUpTime= See Also:
AX=1689h - INT 15/AX=1000h - INT 15/AX=5305h -
Category:
Windows
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Int 2Fh
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M
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