mikek@ziebmef.uucp (Mike King) (04/18/89)
Is there a really easy way to close Windows without the MS-DOS Executive's "Are You Sure?" box? There are certain circumstances in my app in which I'd like to just kill Windows and exit to DOS.
kyler@pyr.gatech.EDU (J. Kyle Rogers) (04/22/89)
In article <1191@rlgvax.UUCP> benson@rlgvax.UUCP (Paul Benson) (Bob Thralls) writes: > [...] >one application can run, the multitasking is still available, use spawnl() exec >other windows applications. > [...] >MS-DOS Exec is installed, I believe there is nothing wrong with spawnl(). Experience indicates that the spawn* functions do not operate correctly in Windows. To spawn another application from within Windows, use some magic with Int21Function4B as discussed here recently. The details are available on bulletin boards with Windows info (ie OnLine/GEnie/DIAL/etc?). ---krogers | krogers -- J. Kyle Rogers -- Technology Dynamics Inc. | | 145 15th Street N.E., Suite 624 -- Atlanta, GA 30361 | |uucp: ...!{akgua,allegra,amd,hplabs,ihnp4,seismo,ut-ngp}!gatech!gitpyr!kyler| |ARPA: kyler@pyr.gatech.edu |
lak@lznh.UUCP (<10000>Lisa Krauth) (04/26/89)
I got this solution from Microsoft Tech Support: PostMessage((HWND)0xffff, WM_SYSCOMMAND, SC_CLOSE, (LONG)0); Apparently the specified window handle, (0xffff), will close all windows that are currently running.
roper@june.cs.washington.edu (Michael Roper) (04/26/89)
Lisa Krauth writes: > I got this solution from Microsoft Tech Support: > > PostMessage((HWND)0xffff, WM_SYSCOMMAND, SC_CLOSE, (LONG)0); > > Apparently the specified window handle, (0xffff), will close all windows > that are currently running. Or more precisely, using 0xffff as a window handle in either a PostMessage() or SendMessage() call will cause the message to be sent to all top-level windows in the system -- including the MS-DOS Executive. Unfortunately, this does not solve the original problem, which was how to exit windows without confronting the confirmation message box that the Executive puts up. Sending the Executive the message suggested is exactly equivalent to selecting "Close" from the Executive's control menu. Michael Roper hDC Computer Corporation
roper@june.cs.washington.edu (Michael Roper) (04/26/89)
Lisa Krauth writes: > I got this solution from Microsoft Tech Support: > > PostMessage((HWND)0xffff, WM_SYSCOMMAND, SC_CLOSE, (LONG)0); As a postscript to my previous article on this approach, I'd like to add that no matter what it is you are trying to do, this is a very bad idea. Don't do it. If you don't care about the confirmation message box, just send the MS-DOS Executive this message exclusively. Broadcasting an SC_CLOSE message like this will almost certainly cause the debugging version of windows to crash if the user decides to cancel at confirmation time. The reason is that this message will close some windows you don't want closed if you're not really leaving Windows. You can get the window handle for the MS-DOS Executive with: hWnd = FindWindow( "Session", NULL ); This works even with foreign language versions of Windows. Mike Roper hDC Computer Corporation
nourse@jfcl.dec.com (Andy Nourse) (04/28/89)
To exit from WINDOWS straight back to DOS, without any confirmation at all,
use:
FatalExit(0);
With a nonzero argument, WINDOWS will RIP, using the argument as a RIPcode.
With a zero argument, WINDOWS will exit normally.