lowe@nthropy.UUCP (Andy Lowe) (09/14/90)
Fellow server hackers, I'm trying to implement the XTest input synthesis extension for our X11R4 server and I'm confused about the following routines described in $top/extensions/server/xtest1.frags: ... > You also need to implement the following routines (documentation > is needed; for now, see server/ddx/hp/hp/x_hil.c): ... > XTestGenerateEvent(dev_type, keycode, keystate, mousex, mousey) > XTestGetPointerPos(fmousex, fmousey) > XTestJumpPointer(jx, jy, dev_type) all I have in the indicated directory is: hp.300.o.Z hp.800.o.Z evidently, the dreaded institutional OCO (object code only) virus attacked hp at the last minute! In fact, 19% cd $top/server/ddx 20% grep XTestGenerateEvent `find . -name "*.[ch]" -print` generated only one match, and that was an invocation, not a definition: ./tek/pegInit.c: XTestGenerateEvent(0, 0, 0, 0, 0); Similarly, 39% cd $top/extensions 40% grep XTestGenerateEvent `find . -name "*.[ch]" -print` only generated two matches, also invocations, as it turns out: ./server/xtest1dd.c:void XTestGenerateEvent(); ./server/xtest1dd.c: XTestGenerateEvent( Oddly, these functions are not mentioned at all in the (scant) documentation I have ($top/doc/extensions/xtest1.mm), but I don't think it will work without them. Am I missing something? Any assistance will be greatly appreciated! regards, Andy Lowe andy@nth.com
gms@hpcvlx.cv.hp.com (George Sachs) (09/15/90)
XTestGenerateEvent is supposed to cause the server to generate a key or button event, exactly as one would be generated if a user pressed a key or pushed a mouse button. Without knowing how your server does that for normal input events, I can't tell you exactly how that should look, but it would be something like: void XTestGenerateEvent (dev_type, key_or_button_code, direction, x, y) int dev_type; /* MOUSE = X pointer, KEYBOARD = X keyboard */ int key_or_button_code; /* code to stash in event */ int direction; /* XTestKEY_UP or XTestKEY_DOWN */ int x,y; /* location of event */ { int type; xEvent *xE; if (key_or_button_code < 8) /* must be a button */ if (direction == XTestKEY_UP) /* it's a release event*/ type = ButtonRelease; else type = ButtonPress; else /* must be a key */ if (direction == XTestKEY_UP) /* it's a release event*/ type = KeyRelease; else type = KeyPress; /* get an xEvent from some place where ProcessInputEvents can find it. */ /* I don't know how your implementation does this. */ xE = somehow_get_xEvent(); xE->u.u.type = type; xE->u.u.detail = key_or_button_code; xE->u.keyButtonPointer.time = GetTimeInMillis(); xE->u.keyButtonPointer.rootX = x; xE->u.keyButtonPointer.rootY = y; /* now call ProcessInputEvents to send the event to DIX for routing to the appropriate client(s). */ ProcessInputEvents(); } XTestJumpPointer performs the equivalent function for pointer events. void XTestJumpPointer (x, y, dev_type) int x,y; int dev_type; { /* get an xEvent from some place where ProcessInputEvents can find it. */ /* I don't know how your implementation does this. */ xE = somehow_get_xEvent(); xE->u.u.type = MotionNotify; xE->u.keyButtonPointer.time = GetTimeInMillis(); xE->u.keyButtonPointer.rootX = x; xE->u.keyButtonPointer.rootY = y; /* Call some place in your server code that takes care of acceleration and threshold. Also constrain the move to the screen bounds. You may also have a motion history buffer that should be updated with the information in this event. */ deal_with_acceleration (); constrainxy(); update_motion_history(); /* now call ProcessInputEvents to send the event to DIX for routing to the appropriate client(s). */ ProcessInputEvents(); } XTestGetPointerPos returns the server's notion of where the X pointer currently is. This is probably kept by ddx in some implementation-specific structure: Implementation_Specific_Struct *i; void XTestGetPointerPos (x,y) short *x,*y; { *x = i->x; *y = i->y; }