Add a delegate, unfortunately it doesn't work?

Source/Editor/GUI/Dialogs/ColorPickerDialog.cs

@@ -221,18 +221,25 @@ namespace FlaxEditor.GUI.Dialogs
             return pixelColor;
         }
 
+        private void ColorPicked(Color32 colorPicked)
+        {
+            Editor.LogWarning("Ok???");
+            _activeEyedropper = false;
+            SelectedColor = colorPicked;
+            ScreenUtils.PickColorDone -= ColorPicked;
+        }
+
         private void OnEyedropStart()
         {
             _activeEyedropper = true;
-            ScreenUtils.BlockAndReadMouse();
+            ScreenUtils.PickColor();
+            ScreenUtils.PickColorDone += ColorPicked;
         }
 
         private void UpdateEyedrop()
         {
             Color32 pixelColor = GetEyedropColor();
-            SelectedColor = new Color(pixelColor.R, pixelColor.G, pixelColor.B);
-
-
+            SelectedColor = pixelColor;
         }
 
         private void OnRGBAChanged()

Source/Engine/Platform/Base/ScreenUtilsBase.cpp

@@ -12,3 +12,8 @@ Int2 ScreenUtilsBase::GetScreenCursorPosition() {
 
 void ScreenUtilsBase::BlockAndReadMouse() {
 }
+
+void ScreenUtilsBase::PickColor() {
+}
+
+Delegate<Color32> ScreenUtilsBase::PickColorDone;

Source/Engine/Platform/Base/ScreenUtilsBase.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "Engine/Core/Types/BaseTypes.h"
+#include "Engine/Core/Delegate.h"
 
 API_INJECT_CODE(cpp, "#include \"Engine/Platform/ScreenUtils.h\"");
 
@@ -27,8 +28,18 @@ public:
     /// <returns>Cursor position, in screen coordinates.</returns>
     API_FUNCTION() static Int2 GetScreenCursorPosition();
 
+    /// <summary>
+    /// Starts async color picking. Will return a color through ColorReturnCallback.
+    /// </summary
+    API_FUNCTION() static void PickColor();
+
     /// <summary>
     /// Blocks mouse input and runs a callback
     /// </summary>
     API_FUNCTION() static void BlockAndReadMouse();
+
+    /// <summary>
+    /// Called when PickColor() is finished.
+    /// </summary>
+    API_EVENT() static Delegate<Color32> PickColorDone;
 };

Source/Engine/Platform/Windows/WindowsScreenUtils.cpp

@@ -1,6 +1,7 @@
 #include "WindowsScreenUtils.h"
 #include "Engine/Core/Math/Color32.h"
 #include "Engine/Core/Math/Vector2.h"
+#include "Engine/Core/Delegate.h"
 
 #include <Windows.h>
 
@@ -8,6 +9,7 @@
 #pragma comment(lib, "Gdi32.lib")
 #endif
 #include <Engine/Core/Log.h>
+#include <Engine/Scripting/ManagedCLR/MCore.h>
 
 Color32 ScreenUtils::GetPixelAt(int32 x, int32 y)
 {
@@ -48,8 +50,12 @@ LRESULT CALLBACK ScreenUtilsMouseCallback(
     if (nCode >= 0 && wParam == WM_LBUTTONDOWN) { // Now try to run our code.
         LOG(Warning, "Mouse callback hit. Skipping event. (hopefully)");
         UnhookWindowsHookEx(_mouseCallbackHook);
+
+        ScreenUtils::PickSelected();
         return 1;
     }
+
+    return CallNextHookEx(NULL, nCode, wParam, lParam);
 }
 
 void ScreenUtils::BlockAndReadMouse()
@@ -61,3 +67,25 @@ void ScreenUtils::BlockAndReadMouse()
         LOG(Warning, "Error: {0}", GetLastError());
     }
 }
+
+Delegate<Color32> ScreenUtils::PickColorDone;
+
+void ScreenUtils::Test(Color32 testVal) {
+    LOG(Warning, "GOT IT");
+}
+
+void ScreenUtils::PickSelected() {
+    // Push event with color.
+    Int2 cursorPos = ScreenUtils::GetScreenCursorPosition();
+    Color32 colorPicked = ScreenUtils::GetPixelAt(cursorPos.X, cursorPos.Y);
+
+    LOG(Warning, "REAL: {0}", PickColorDone.Count());
+    PickColorDone(colorPicked);
+    LOG(Warning, "FAKE");
+}
+
+void ScreenUtils::PickColor()
+{
+    MCore::AttachThread();
+    BlockAndReadMouse();
+}

Source/Engine/Platform/Windows/WindowsScreenUtils.h

@@ -2,8 +2,8 @@
 
 #if PLATFORM_WINDOWS
 
-#include "Engine/Core/Math/Color32.h"
 #include "Engine/Platform/Base/ScreenUtilsBase.h"
+#include "Engine/Core/Math/Color32.h"
 
 class FLAXENGINE_API ScreenUtils : public ScreenUtilsBase {
 public:
@@ -12,6 +12,12 @@ public:
     static Color32 GetPixelAt(int32 x, int32 y);
     static Int2 GetScreenCursorPosition();
     static void BlockAndReadMouse();
+    static void PickColor();
+    static Delegate<Color32> PickColorDone;
+
+public:
+    static void PickSelected();
+    static void Test(Color32 testVal);
 };
 
 #endif