etsai@hstbme.mit.edu (Eugene Tsai) (09/28/89)
I have a digitizer and want to write some code that would allow the digitizer to share control of the cursor with the mouse. However, looking through Inside Mac vols 1-5, I have not found any Toolbox routines that will allow me to alter the coordinates of the cursor. The digitizer that I have sends serial data via the Mac's modem port. Does anyone have suggestions as to how I might accomplish this task? Thanks, Eugene Tsai
mnkonar@manyjars.SRC.Honeywell.COM (Murat N. Konar) (09/28/89)
In article <14701@bloom-beacon.MIT.EDU> etsai@hstbme.mit.edu.UUCP (Eugene Tsai) writes: >I have a digitizer and want to write some code that would allow the digitizer >to share control of the cursor with the mouse. However, looking through >Inside Mac vols 1-5, I have not found any Toolbox routines that will allow >me to alter the coordinates of the cursor. The digitizer that I have sends >serial data via the Mac's modem port. Does anyone have suggestions as to how >I might accomplish this task? I beleive there is some sample code for an ADB tablet driver available via anonymous ftp from Apple. You should be able to figure out how to move the mouse from this code. [the following is a quote from an eariler post] "To access and retrieve files from the Apple archive, you should FTP to apple.apple.com (130.43.2.2) using account:anonymous and password:guest. Once you logon, change directories to pub/dts/ (cd pub/dts/) and get the README file (get README) which explains the archive content and structure." Good luck. ____________________________________________________________________ Have a day. :^| Murat N. Konar Honeywell Systems & Research Center, Camden, MN mnkonar@SRC.honeywell.com (internet) {umn-cs,ems,bthpyd}!srcsip!mnkonar(UUCP)
yahnke@vms.macc.wisc.edu (Ross Yahnke, MACC) (09/28/89)
In article <14701@bloom-beacon.MIT.EDU> etsai@hstbme.mit.edu.UUCP (Eugene Tsai) writes: >I have a digitizer and want to write some code that would allow the digitizer >to share control of the cursor with the mouse. However, looking through The Hypercard stack "Q & A Stack 3.1" from Apple DTS contains material that discusses how to modify the movement of the mouse cursor. It's available via anonymous ftp from sumex and apple. >>> Internet: yahnke@macc.wisc.edu <<< >>> Mille voix chuchottent <<c'est vrai>> <<<
cbm@well.UUCP (Chris Muir) (09/29/89)
Here's the other side of GetMouse, SetMouse:
procedure SetMouse (where: point);
var
LowGlob: integer;
LowMem: ptr;
PointPtr: ^point;
finalTicks: longint;
const
{some dangerous low-memory-global equates}
MBState = $172; {byte}
MTemp = $828; {point}
RawMouse = $82c; {point}
Mouse = $830; {point}
CrsrNew = $8ce; {byte}
CrsrCouple = $8cf; {byte}
Couple = $ff; {value for CrsrCouple}
Uncouple = $00; {value for CrsrCouple}
begin
LocalToGlobal(where); {Get ready to restore old mouse position}
LowMem := pointer(RawMouse); {point to low memory}
PointPtr := @LowMem^; {treat it as a point}
PointPtr^ := where; {store saved mouse position into it}
LowMem := pointer(MTemp); {point to low memory}
PointPtr := @LowMem^; {treat it as a point}
PointPtr^ := where; {store saved mouse position into it}
LowMem := pointer(CrsrNew);
LowMem^ := $ffff; {both CrsrNew & CrsrCouple}
Delay(5, finalTicks); {let the cursor catch up}
end; {SetMouse}
Note thet it uses undocumented low memory globals.
--
_______________________________________________________________________________
Chris Muir | "There is no language in our lungs
{hplabs,pacbell,ucbvax,apple} | to tell the world just how we feel"
!well!cbm | - A. Partridge