Offset Size Contents
▀▀▀▀▀▀ ▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
+0 2 wApiMajor task-switching protocol version (major)
+2 2 wApiMinor task-switching protocol version (minor)
+4 2 wProgMajor task-switcher program version (major)
+6 2 wProgMinor task-switcher program version (minor)
+8 2 wSwitcherID ID number of this task switcher
+0aH 2 wFlags operation flags
+0cH 4 pfszName addr of ASCIIZ▲ name of switcher program
+10H 4 pfPrevSwchr entry address of next task switcher in chain (or
0000:0000 if last in chain)
20 size of an SwVersionRec structure
wApiMinor identify the highest version of task-switching protocol
supported by this switcher. For instance, 3.10 would have
wApiMajor=0003H and wApiMinor=000aH.
wProgMinor identify the version of the task switcher program; using the
same format as the API fields.
wSwitcherID is the ID number of this switcher, as obtained via an
INT 2fH 4b03H (allocate switcher ID) call.
wFlags Only bit 0 has meaning. When bit 0 is 1, then this switcher
is currently disabled. All other bits must be 0.
pfszName Is the far address of an ASCIIZ▲ string of the name of this
pfPrevSwchr Is the entry address of another task switcher. When this
field is 0000:0000, it's the end of the line. Otherwise, you
can get info about that switcher by using SwSrvcFn 0000H (get
version) via a call to this address.
This structure is obtained via SwSrvcFn 0000H which could be called after
using INT 2fH 4b02H (detect switcher).
See Also: Switcher Services and Notifications
INT 2fH 4bxxH (switcher functions)