| 0100h |
warm boot
| Return: |
never |
| Note: |
broadcasts "Reboot_Processor" message, which is caught by
the VKD device |
|
| 0201h |
set KERNEL Ctrl-Alt-Del handler
| Data: |
ES:DI |
 |
new Ctrl-Alt-Del handler |
| DS:SI |
|
KERNEL reboot sanity check byte |
| Return: |
CF |
- |
clear |
| Note: |
if an application installs its
own handler and then chains to Windows' handler, Windows will
no longer be able to detect hung applications, and will always
produce an "Application not responding" dialog.
DS must contain a writable, fixed selector because the
provided address is converted to a linear address before being
stored.
When Ctrl-Alt-Del is pressed in the system VM, Reboot sets the
sanity check byte to zero, schedules a 750ms wait, and then
tests whether the check byte is still zero; if not, it
displays a message that there is no hung application and then
exits. |
|
| 0202h |
get KERNEL Ctrl-Alt-Del handler
| Return: |
CF |
- |
clear |
| ES:DI |
|
current Ctrl-Alt-Del handler |
| Note: |
The default handler is located in
KERNEL. |
|
| 0203h |
display "Application not responding" dialog box
| Data: |
ES:DI |
|
ASCIZ name of hung application |
| Return: |
never if user pressed
Ctrl-Alt-Del a second time |
| CF |
- |
clear |
| AX |
= |
result
| 0000h |
= |
user pressed Esc |
| 0001h |
= |
user pressed Enter |
|
| Note: |
this function is used by the
default Windows Ctrl-Alt-Del handler |
|
| 0204h |
set/reset protected-mode INT 01 handler
| Data: |
CX:EDX |
|
new protected-mode INT 01 handler |
| CX |
= |
0000h restore protected-mode INT 01 handler |
| Return: |
CF |
- |
clear |
| Note: |
If CX is nonzero, the current
handler address is saved internally before the new handler is
set; this saved address is then used when CX is zero on entry.
Used by Windows' default Ctrl-Alt-Del handler; actual fatal
exit to DOS will be done on next INT 01h. |
| Warning: |
Opened files are not closed and
remain open as orphaned files in DOS. |
|