According to the header and the docs, CGWarpMouseCursorPosition is not
supposed to generate events:
===========================================================================
/*
* Warp the mouse cursor to the desired position in global
* coordinates without generating events
*/
CG_EXTERN CGError CGWarpMouseCursorPosition( CGPoint newCursorPosition );
===========================================================================
And I should be able to call CGAssociateMouseAndMouseCursorPosition(false)
to disconnect the mouse from the cursor location, then use mouse deltas
instead of absolute location and use CGWarpMouseCursorPosition to then put
the cursor where I want without generating further events:
===========================================================================
/*
* Helper function to connect or disconnect the mouse and mouse cursor while
* the calling app is in the foreground.
*
* While disconnected, mouse move and drag events will reflect the current
* position of the mouse cursor position, which will not change with mouse
* movement. Use the <CoreGraphics/CGDirectDisplay.h> function:
*
* void CGGetLastMouseDelta( CGMouseDelta * deltaX, CGMouseDelta * deltaY );
*
* This will report mouse movement associated with the last mouse move or
* drag event.
*
* To update the display cursor position, use the function defined in this
* module:
*
* CGError CGWarpMouseCursorPosition( CGPoint newCursorPosition );
*
* Note: The Force Quit key combination (CMD-OPT-ESC by default) will
* reconnect the mouse and cursor.
*/
CG_EXTERN CGError CGAssociateMouseAndMouseCursorPosition(boolean_t
connected);
===========================================================================
I'm trying exactly what this suggests, although I'm using the
kEventParamMouseDelta from a kEventMouseMoved instead of
CGGetLastMouseDelta. The problem I'm having is that if I call
CGWarpMouseCursorPosition it DOES generate an additional kEventMouseMoved.
Have I misinterpreted the docs? Anyone else tried this and have any tips?
-Marc
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