diff --git a/core/src/processing/opengl/PGL.java b/core/src/processing/opengl/PGL.java
index e1310dbdd..f43d19433 100644
--- a/core/src/processing/opengl/PGL.java
+++ b/core/src/processing/opengl/PGL.java
@@ -714,9 +714,7 @@ public abstract class PGL {
   }
 
 
-  protected boolean canDraw() {
-    return pg.initialized && pg.parent.isDisplayable();
-  }
+  protected abstract boolean canDraw();
 
 
   protected abstract void requestFocus();
diff --git a/core/src/processing/opengl/PJOGL.java b/core/src/processing/opengl/PJOGL.java
index f977f4319..01a0dabe7 100644
--- a/core/src/processing/opengl/PJOGL.java
+++ b/core/src/processing/opengl/PJOGL.java
@@ -557,6 +557,12 @@ public class PJOGL extends PGL {
   }
 
 
+  @Override
+  protected boolean canDraw() {
+    return pg.initialized && pg.parent.isDisplayable();
+  }
+
+
   @Override
   protected void requestFocus() { }
 
diff --git a/java/libraries/lwjgl/src/processing/lwjgl/PLWJGL.java b/java/libraries/lwjgl/src/processing/lwjgl/PLWJGL.java
index 795d5828f..477a345f5 100644
--- a/java/libraries/lwjgl/src/processing/lwjgl/PLWJGL.java
+++ b/java/libraries/lwjgl/src/processing/lwjgl/PLWJGL.java
@@ -229,6 +229,11 @@ public class PLWJGL extends PGL {
   // Frame rendering
 
 
+  protected boolean canDraw() {
+    return pg.initialized && pg.parent.isDisplayable();
+  }
+  
+  
   protected void requestFocus() { }