Query Close
Indicates
whether the user has attempted to close an MS-DOS - based application from Windows by choosing the Close
command from the system menu.
mov ah, 16h
; Windows multiplex function
mov al, 8Fh
; VM Close
mov dh, 1
; Query Close
mov dl, 0
; always 0
int 2Fh
Return Value
Returns one
of the following values in the AX register:
|
0 |
The close
command was chosen, and the application has not acknowledged the close state. |
|
1 |
The close
command was chosen, and the application has acknowledged the close state. |
|
168Fh |
The close
command has not been chosen, and the application should continue running. |
Remarks
Query Close
returns a nonzero value if the application has not enabled the Close command by
using the Enable or Disable Close Command function.