Mouse up doesn't return Get(true)

[jimwau]

C# .net 4
RhinoInputCustom
Class GetPoint
Get(true) method does not return on mouse left button up, when ConstrianCurve(…) is used.
When ConstranCurve(…) is taken out, Get(true) returns on mouse up.

Jim Randall

[dale (Dale Fugier)]

Hi Jim,

Thanks for reporting. I’m sure this is no something limited to RhinoCommon.

Why is mouse up important?

[menno (Menno Deij - van Rijswijk)]

There is a related issue I think, when selection of an object results in a mouse-up event not being reported. In short, you cannot use Rhino’s mouse events to reason about the state of the mouse because not all mouse events are always reported.

MouseCallback.OnMouseUp not called when an object is selected

Run the command below to start listening to mouse down and up events. Make some clicks left and right to ensure that the listener is enabled Select an object in the document. Result: mouse down is raised, mouse up is not raised. Expected result: first mouse down, then mouse up is raised. private MyMouseListener listener= new MyMouseListener(); protected Result RunCommand(RhinoDoc doc, RunMode mode) { bool enable = listener.Enabled; Result res = RhinoGet.GetBool("Enable/Disable …

[jimwau]

Mouse up is important to stop the mouse from dragging a curve that is being positioned along another curve. The work around I used was to set a switch using MouseCapture-Mouseup. This switch executes a return statement in GetPoint class Mousemove method, which stops the dragging. Not ideal, but it works.

Jim Randall