efl-csharp: Fix event struct marshalling.

Summary:
The efl.Event struct has a class field that gets generated normally but
can be problematic when marshalling the struct back from C to C#. The
compilation works fine but when C# runtime tries to marshall the C data
(e.g. accessing the Event.Info field), it becomes erratic, either
complaining about missing references to object or even segfault.

This commit changes the event handling code to use the
"Event_StructInternal" struct as is already done when receiving structs
from C code.

In order to work with other assemblies, the _StructInternal fields were
made publit too.

Fixes the events tests and the text editor app.

Test Plan: make check and run the text editor app in examples repo.

Reviewers: segfaultxavi, vitor.sousa

Reviewed By: vitor.sousa

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D7106

1 files changed, 1 insertions, 1 deletions

diff --git a/src/bindings/mono/eo_mono/workaround.cs b/src/bindings/mono/eo_mono/workaround.cs
index 26afcefcb6..253e3758f3 100644
--- a/src/bindings/mono/eo_mono/workaround.cs
+++ b/src/bindings/mono/eo_mono/workaround.cs
@@ -106,7 +106,7 @@ public struct Event_Description {
 };
 
 
-public delegate void Event_Cb(System.IntPtr data, ref Event evt);
+public delegate void Event_Cb(System.IntPtr data, ref Event_StructInternal evt);
 #pragma warning disable 0169
 public struct Dbg_Info {
     IntPtr name;