diff --git a/ewol/Padding.h b/ewol/Padding.h
index 6b959f06..106beb67 100644
--- a/ewol/Padding.h
+++ b/ewol/Padding.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_PADDING_H__
-#define __EWOL_PADDING_H__
+#pragma once
 
 #include <ewol/debug.h>
 
@@ -83,4 +81,3 @@ namespace ewol {
 	std::ostream& operator <<(std::ostream& _os, const ewol::Padding& _obj);
 };
 
-#endif
diff --git a/ewol/compositing/Area.h b/ewol/compositing/Area.h
index 06d4b072..90ea5808 100644
--- a/ewol/compositing/Area.h
+++ b/ewol/compositing/Area.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_AREA_H__
-#define __EWOL_COMPOSITING_AREA_H__
+#pragma once
 
 #include <etk/Color.h>
 #include <ewol/debug.h>
@@ -100,6 +98,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
-
diff --git a/ewol/compositing/Compositing.h b/ewol/compositing/Compositing.h
index 7f194f64..f562b281 100644
--- a/ewol/compositing/Compositing.h
+++ b/ewol/compositing/Compositing.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_H__
-#define __EWOL_COMPOSITING_H__
+#pragma once
 
 #include <ewol/debug.h>
 #include <etk/types.h>
@@ -60,5 +58,3 @@ namespace ewol {
 			virtual void setMatrix(const mat4& _mat);
 	};
 };
-
-#endif
diff --git a/ewol/compositing/Drawing.h b/ewol/compositing/Drawing.h
index 382a2515..79f50947 100644
--- a/ewol/compositing/Drawing.h
+++ b/ewol/compositing/Drawing.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_DRAWING_H__
-#define __EWOL_COMPOSITING_DRAWING_H__
+#pragma once
 
 #include <etk/Color.h>
 
@@ -230,5 +228,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/compositing/Image.h b/ewol/compositing/Image.h
index eb80f2cc..f15a6548 100644
--- a/ewol/compositing/Image.h
+++ b/ewol/compositing/Image.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_IMAGE_H__
-#define __EWOL_COMPOSITING_IMAGE_H__
+#pragma once
 
 #include <ewol/debug.h>
 #include <ewol/compositing/Compositing.h>
@@ -192,4 +190,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/compositing/Shaper.h b/ewol/compositing/Shaper.h
index 8c2fe3b0..afb9552c 100644
--- a/ewol/compositing/Shaper.h
+++ b/ewol/compositing/Shaper.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_SHAPER_H__
-#define __EWOL_COMPOSITING_SHAPER_H__
+#pragma once
 
 #include <ewol/debug.h>
 #include <ewol/compositing/Compositing.h>
@@ -292,8 +290,7 @@ namespace ewol {
 					return _obj.m_name != m_name;
 				}
 		};
-	};
-};
+	}
+}
 
-#endif
 
diff --git a/ewol/compositing/Sprite.h b/ewol/compositing/Sprite.h
index 37fecbee..ed4826ed 100644
--- a/ewol/compositing/Sprite.h
+++ b/ewol/compositing/Sprite.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_SPRITE_H__
-#define __EWOL_COMPOSITING_SPRITE_H__
+#pragma once
 
 #include <ewol/debug.h>
 #include <ewol/compositing/Image.h>
@@ -28,8 +26,6 @@ namespace ewol {
 				};
 				void printSprite(const ivec2& _spriteID, const vec3& _size);
 		};
-	};
-};
-
-#endif
+	}
+}
 
diff --git a/ewol/compositing/Text.h b/ewol/compositing/Text.h
index 83c00658..a8fe9950 100644
--- a/ewol/compositing/Text.h
+++ b/ewol/compositing/Text.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_TEXT_H__
-#define __EWOL_COMPOSITING_TEXT_H__
+#pragma once
 
 #include <etk/Color.h>
 
@@ -55,8 +53,6 @@ namespace ewol {
 				virtual void printChar(const char32_t& _charcode);
 				virtual vec3 calculateSizeChar(const char32_t& _charcode);
 		};
-	};
-};
+	}
+}
 
-
-#endif
\ No newline at end of file
diff --git a/ewol/compositing/TextBase.h b/ewol/compositing/TextBase.h
index 9bb4241e..56599887 100644
--- a/ewol/compositing/TextBase.h
+++ b/ewol/compositing/TextBase.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_TEXT_BASE_H__
-#define __EWOL_COMPOSITING_TEXT_BASE_H__
+#pragma once
 
 #include <etk/Color.h>
 
@@ -474,8 +472,7 @@ namespace ewol {
 				 */
 				void setCursorColor(const etk::Color<>& _color);
 		};
-	};
-};
+	}
+}
 
-#endif
 
diff --git a/ewol/compositing/TextDF.h b/ewol/compositing/TextDF.h
index 0394137a..6b11ef3e 100644
--- a/ewol/compositing/TextDF.h
+++ b/ewol/compositing/TextDF.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COMPOSITING_TEXT_DF_H__
-#define __EWOL_COMPOSITING_TEXT_DF_H__
+#pragma once
 
 #include <etk/Color.h>
 
@@ -70,8 +68,7 @@ namespace ewol {
 				virtual void printChar(const char32_t& _charcode);
 				virtual vec3 calculateSizeChar(const char32_t& _charcode);
 		};
-	};
-};
+	}
+}
 
-#endif
 
diff --git a/ewol/context/Application.h b/ewol/context/Application.h
index 04ddc12d..c6f6a974 100644
--- a/ewol/context/Application.h
+++ b/ewol/context/Application.h
@@ -6,8 +6,7 @@
  * @license APACHE v2.0 (see license file)
  */
 
-#ifndef __EWOL_CONTEXT_APPLICATION_H__
-#define __EWOL_CONTEXT_APPLICATION_H__
+#pragma once
 
 namespace ewol {
 	class Context;
@@ -50,5 +49,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/context/ConfigFont.h b/ewol/context/ConfigFont.h
index e6ba452d..32c03585 100644
--- a/ewol/context/ConfigFont.h
+++ b/ewol/context/ConfigFont.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_CONFIG_FONT_H__
-#define __EWOL_CONFIG_FONT_H__
+#pragma once
 
 #include <ewol/debug.h>
 
@@ -92,5 +90,4 @@ namespace ewol {
 	};
 };
 
-#endif
 
diff --git a/ewol/context/Context.h b/ewol/context/Context.h
index c347a7e7..bf7f009d 100644
--- a/ewol/context/Context.h
+++ b/ewol/context/Context.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_CONTEXT_H__
-#define __EWOL_CONTEXT_H__
+#pragma once
 
 #include <gale/key/key.h>
 #include <gale/Application.h>
@@ -215,5 +213,3 @@ namespace ewol {
 	Context& getContext();
 };
 
-#endif
-
diff --git a/ewol/context/InputManager.h b/ewol/context/InputManager.h
index ce561608..bdf89508 100644
--- a/ewol/context/InputManager.h
+++ b/ewol/context/InputManager.h
@@ -5,10 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SYSTEM_INPUT_H__
-#define __EWOL_SYSTEM_INPUT_H__
-
+#pragma once
 #include <ewol/widget/Widget.h>
 
 #define MAX_MANAGE_INPUT (15)
@@ -122,6 +119,4 @@ namespace ewol {
 		};
 	};
 };
-#endif
-
 
diff --git a/ewol/debug.h b/ewol/debug.h
index 0d78f616..a59fbe49 100644
--- a/ewol/debug.h
+++ b/ewol/debug.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_DEBUG_H__
-#define __EWOL_DEBUG_H__
+#pragma once
 
 #include <etk/log.h>
 
@@ -40,5 +38,3 @@ namespace ewol {
 		} \
 	} while (0)
 
-#endif
-
diff --git a/ewol/event/Entry.h b/ewol/event/Entry.h
index 144ff9e4..eed77d63 100644
--- a/ewol/event/Entry.h
+++ b/ewol/event/Entry.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_EVENT_ENTRY_H__
-#define __EWOL_EVENT_ENTRY_H__
+#pragma once
 
 #include <etk/types.h>
 #include <gale/key/key.h>
@@ -72,6 +70,3 @@ namespace ewol {
 		std::ostream& operator <<(std::ostream& _os, const ewol::event::EntrySystem& _obj);
 	};
 };
-
-#endif
-
diff --git a/ewol/event/Input.h b/ewol/event/Input.h
index 32e84656..3a3c8024 100644
--- a/ewol/event/Input.h
+++ b/ewol/event/Input.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_EVENT_INPUT_H__
-#define __EWOL_EVENT_INPUT_H__
+#pragma once
 
 #include <etk/types.h>
 
@@ -106,5 +104,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/event/Time.h b/ewol/event/Time.h
index 4b6bce39..16fdc967 100644
--- a/ewol/event/Time.h
+++ b/ewol/event/Time.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_EVENT_CALL_TIME_H__
-#define __EWOL_EVENT_CALL_TIME_H__
+#pragma once
 
 #include <etk/types.h>
 
@@ -60,8 +58,6 @@ namespace ewol {
 				};
 		};
 		std::ostream& operator <<(std::ostream& _os, const ewol::event::Time& _obj);
-	};
-};
-
-#endif
+	}
+}
 
diff --git a/ewol/ewol.h b/ewol/ewol.h
index be9abc9e..f3c835dd 100644
--- a/ewol/ewol.h
+++ b/ewol/ewol.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_H__
-#define __EWOL_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/context/Application.h>
@@ -51,5 +49,3 @@ namespace ewol {
 	// TODO : Remove ...
 	std::string getBoardType();
 };
-
-#endif
diff --git a/ewol/object/Manager.h b/ewol/object/Manager.h
index 7d697a4f..dbc19c6f 100644
--- a/ewol/object/Manager.h
+++ b/ewol/object/Manager.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_OBJECT_MANAGER_H__
-#define __EWOL_OBJECT_MANAGER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/object/Object.h>
@@ -102,6 +100,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
-
diff --git a/ewol/object/Object.h b/ewol/object/Object.h
index 78670359..5ab4a440 100644
--- a/ewol/object/Object.h
+++ b/ewol/object/Object.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_OBJECT_H__
-#define __EWOL_OBJECT_H__
+#pragma once
 
 #include <etk/types.h>
 #include <vector>
@@ -314,7 +312,6 @@ namespace ewol {
 } while (false)
 //#include <ewol/signal/Signal.h>
 
-#endif
 
 
 
diff --git a/ewol/object/Worker.h b/ewol/object/Worker.h
index 392e508d..057ec7cb 100644
--- a/ewol/object/Worker.h
+++ b/ewol/object/Worker.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WORKER_H__
-#define __EWOL_WORKER_H__
+#pragma once
 
 #include <ewol/debug.h>
 #include <ewol/object/Object.h>
@@ -38,7 +36,5 @@ namespace ewol {
 			public:
 				virtual void destroy();
 		};
-	};
-};
-
-#endif
+	}
+}
diff --git a/ewol/parameter/Interface.h b/ewol/parameter/Interface.h
index 2f3570df..934ec0d8 100644
--- a/ewol/parameter/Interface.h
+++ b/ewol/parameter/Interface.h
@@ -5,10 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-
-#ifndef __EWOL_PARAMETER_INTERFACE_H__
-#define __EWOL_PARAMETER_INTERFACE_H__
+#pragma once
 
 #include <vector>
 #include <map>
@@ -89,4 +86,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/parameter/List.h b/ewol/parameter/List.h
index 784d3672..5a80768c 100644
--- a/ewol/parameter/List.h
+++ b/ewol/parameter/List.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_PARAMETER_LIST_H__
-#define __EWOL_PARAMETER_LIST_H__
+#pragma once
 
 #include <ewol/parameter/Interface.h>
 #include <ewol/parameter/Parameter.h>
@@ -170,5 +168,4 @@ namespace ewol {
 		}
 	};
 };
-#endif
 
diff --git a/ewol/parameter/Parameter.h b/ewol/parameter/Parameter.h
index e17ec009..09b52402 100644
--- a/ewol/parameter/Parameter.h
+++ b/ewol/parameter/Parameter.h
@@ -8,8 +8,7 @@
 
 #include <ewol/parameter/Interface.h>
 
-#ifndef __EWOL_PARAMETER_H__
-#define __EWOL_PARAMETER_H__
+#pragma once
 
 #include <string>
 #include <typeinfo>
@@ -88,4 +87,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/parameter/Range.h b/ewol/parameter/Range.h
index 7dcd9f56..95a0471a 100644
--- a/ewol/parameter/Range.h
+++ b/ewol/parameter/Range.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_PARAMETER_RANGE_H__
-#define __EWOL_PARAMETER_RANGE_H__
+#pragma once
 
 #include <ewol/parameter/Interface.h>
 #include <ewol/parameter/Parameter.h>
@@ -151,4 +149,4 @@ namespace ewol {
 		}
 	};
 };
-#endif
+
diff --git a/ewol/parameter/Value.h b/ewol/parameter/Value.h
index f596c85b..3a10cbcd 100644
--- a/ewol/parameter/Value.h
+++ b/ewol/parameter/Value.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_PARAMETER_VALUE_H__
-#define __EWOL_PARAMETER_VALUE_H__
+#pragma once
 
 #include <ewol/parameter/Interface.h>
 #include <ewol/parameter/Parameter.h>
@@ -143,6 +141,6 @@ namespace ewol {
 			_os << _obj.get();
 			return _os;
 		}
-	};
-};
-#endif
+	}
+}
+
diff --git a/ewol/resource/ColorFile.h b/ewol/resource/ColorFile.h
index 0338632f..96b8c329 100644
--- a/ewol/resource/ColorFile.h
+++ b/ewol/resource/ColorFile.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __SIMPLE_COLOR_FILE_H__
-#define __SIMPLE_COLOR_FILE_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -75,5 +73,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/resource/Colored3DObject.h b/ewol/resource/Colored3DObject.h
index 6f684d80..cc4446e1 100644
--- a/ewol/resource/Colored3DObject.h
+++ b/ewol/resource/Colored3DObject.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __COLORED_3D_OBJECT_H__
-#define __COLORED_3D_OBJECT_H__
+#pragma once
 
 #include <etk/types.h>
 #include <gale/resource/Resource.h>
@@ -56,5 +54,3 @@ namespace ewol {
 	};
 };
 
-
-#endif
diff --git a/ewol/resource/ConfigFile.h b/ewol/resource/ConfigFile.h
index 7a8749dd..a479a047 100644
--- a/ewol/resource/ConfigFile.h
+++ b/ewol/resource/ConfigFile.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __SIMPLE_CONFIG_FILE_H__
-#define __SIMPLE_CONFIG_FILE_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Hash.h>
@@ -46,6 +44,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
-
diff --git a/ewol/resource/DistanceFieldFont.h b/ewol/resource/DistanceFieldFont.h
index c14bedae..e2a7d06c 100644
--- a/ewol/resource/DistanceFieldFont.h
+++ b/ewol/resource/DistanceFieldFont.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_DISTANCE_FIELD_FONT_H__
-#define __EWOL_DISTANCE_FIELD_FONT_H__
+#pragma once
 
 #include <ewol/resource/font/FontBase.h>
 #include <ewol/resource/Texture.h>
@@ -98,6 +96,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
-
diff --git a/ewol/resource/FontFreeType.h b/ewol/resource/FontFreeType.h
index 0b1fbbfe..20751407 100644
--- a/ewol/resource/FontFreeType.h
+++ b/ewol/resource/FontFreeType.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_FONT_FREE_TYPE_H__
-#define __EWOL_FONT_FREE_TYPE_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/resource/font/FontBase.h>
@@ -62,5 +60,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/resource/Image.h b/ewol/resource/Image.h
index 1e417da2..9846eba4 100644
--- a/ewol/resource/Image.h
+++ b/ewol/resource/Image.h
@@ -6,9 +6,7 @@
  * @license APACHE v2.0 (see license file)
  */
 // TODO : Change tis file name ...
-
-#ifndef __EWOL_TEXTURE_FILE_H__
-#define __EWOL_TEXTURE_FILE_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/types.h>
@@ -51,6 +49,3 @@ namespace ewol {
 	};
 };
 
-
-#endif
-
diff --git a/ewol/resource/ImageDF.h b/ewol/resource/ImageDF.h
index a6696687..81f31a02 100644
--- a/ewol/resource/ImageDF.h
+++ b/ewol/resource/ImageDF.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_RESOURCE_IMAGE_DISTANCE_FIELD_H__
-#define __EWOL_RESOURCE_IMAGE_DISTANCE_FIELD_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/types.h>
@@ -50,5 +48,3 @@ namespace ewol {
 	};
 };
 
-
-#endif
\ No newline at end of file
diff --git a/ewol/resource/Texture.h b/ewol/resource/Texture.h
index e8effcf6..4963e8a5 100644
--- a/ewol/resource/Texture.h
+++ b/ewol/resource/Texture.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_TEXTURE_H__
-#define __EWOL_TEXTURE_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -52,8 +50,6 @@ namespace ewol {
 					return m_texId;
 				};
 		};
-	};
-};
-
-#endif
+	}
+}
 
diff --git a/ewol/resource/TexturedFont.h b/ewol/resource/TexturedFont.h
index 33efcea9..2d712f98 100644
--- a/ewol/resource/TexturedFont.h
+++ b/ewol/resource/TexturedFont.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_TEXTURED_FONT_H__
-#define __EWOL_TEXTURED_FONT_H__
+#pragma once
 
 #include <ewol/resource/font/FontBase.h>
 #include <ewol/resource/Texture.h>
@@ -23,7 +21,7 @@ namespace ewol {
 			Bold,
 			BoldItalic,
 		};
-	};
+	}
 	std::ostream& operator <<(std::ostream& _os, enum ewol::font::mode _obj);
 	
 	namespace resource {
@@ -96,8 +94,6 @@ namespace ewol {
 				 */
 				bool addGlyph(const char32_t& _val);
 		};
-	};
-};
-
-#endif
+	}
+}
 
diff --git a/ewol/resource/font/FontBase.h b/ewol/resource/font/FontBase.h
index 6faa746d..f1f58f95 100644
--- a/ewol/resource/font/FontBase.h
+++ b/ewol/resource/font/FontBase.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_FONT_H__
-#define __EWOL_FONT_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -57,5 +55,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/resource/font/GlyphProperty.h b/ewol/resource/font/GlyphProperty.h
index 55b181fc..36a8cdd0 100644
--- a/ewol/resource/font/GlyphProperty.h
+++ b/ewol/resource/font/GlyphProperty.h
@@ -5,13 +5,10 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_FONT_GLYPH_PROPERTY_H__
-#define __EWOL_FONT_GLYPH_PROPERTY_H__
+#pragma once
 
 #include <ewol/resource/font/Kerning.h>
 
-
 namespace ewol {
 	/*
 	                             |            |          |            |            
@@ -106,5 +103,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/resource/font/Kerning.h b/ewol/resource/font/Kerning.h
index 6218753e..34ba457e 100644
--- a/ewol/resource/font/Kerning.h
+++ b/ewol/resource/font/Kerning.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_FONT_KERNING_H__
-#define __EWOL_FONT_KERNING_H__
+#pragma once
 
 namespace ewol {
 	/**
@@ -71,5 +69,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/signal/Base.h b/ewol/signal/Base.h
index 6dd1928a..cf6c5ba8 100644
--- a/ewol/signal/Base.h
+++ b/ewol/signal/Base.h
@@ -5,13 +5,10 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SIGNAL_BASE_H__
-#define __EWOL_SIGNAL_BASE_H__
+#pragma once
 
 #include <ewol/signal/Interface.h>
 
-
 namespace ewol {
 	namespace signal {
 		class Base {
@@ -55,4 +52,3 @@ namespace ewol {
 		const char* logIndent(int32_t _iii);
 	};
 };
-#endif
diff --git a/ewol/signal/Interface.h b/ewol/signal/Interface.h
index 859f461d..a9fb9768 100644
--- a/ewol/signal/Interface.h
+++ b/ewol/signal/Interface.h
@@ -5,10 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-
-#ifndef __EWOL_SIGNAL_INTERFACE_H__
-#define __EWOL_SIGNAL_INTERFACE_H__
+#pragma once
 
 #include <vector>
 #include <map>
@@ -49,4 +46,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/signal/Signal.h b/ewol/signal/Signal.h
index ae9ba8ab..5d672e64 100644
--- a/ewol/signal/Signal.h
+++ b/ewol/signal/Signal.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SIGNAL_H__
-#define __EWOL_SIGNAL_H__
+#pragma once
 
 #include <functional>
 #include <ewol/signal/Base.h>
@@ -410,5 +408,5 @@ namespace ewol {
 	};
 	#undef __class__
 	#define __class__ nullptr
-};
-#endif
+}
+
diff --git a/ewol/translate.h b/ewol/translate.h
index 65f827ad..ad8531bd 100644
--- a/ewol/translate.h
+++ b/ewol/translate.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_TRANSLATE_H__
-#define __EWOL_TRANSLATE_H__
+#pragma once
 
 #include <etk/types.h>
 
@@ -75,6 +73,3 @@ namespace ewol {
 };
 // Here we define a simple macro to Translate all string simply:
 #define TRANSLATE(a) ewol::translate::get(a)
-
-#endif
-
diff --git a/ewol/widget/Button.h b/ewol/widget/Button.h
index fea5dd6b..95d0b8db 100644
--- a/ewol/widget/Button.h
+++ b/ewol/widget/Button.h
@@ -5,10 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-
-#ifndef __EWOL_BUTTON_H__
-#define __EWOL_BUTTON_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -168,5 +165,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/ButtonColor.h b/ewol/widget/ButtonColor.h
index 95069804..324391a1 100644
--- a/ewol/widget/ButtonColor.h
+++ b/ewol/widget/ButtonColor.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_BUTTON_COLOR_H__
-#define __EWOL_BUTTON_COLOR_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -91,4 +89,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/CheckBox.h b/ewol/widget/CheckBox.h
index a76dd160..aad1c4ea 100644
--- a/ewol/widget/CheckBox.h
+++ b/ewol/widget/CheckBox.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_CHECK_BOX_H__
-#define __EWOL_CHECK_BOX_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -99,4 +97,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/ColorBar.h b/ewol/widget/ColorBar.h
index 65bf3d2c..5c12d292 100644
--- a/ewol/widget/ColorBar.h
+++ b/ewol/widget/ColorBar.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COLORBAR_H__
-#define __EWOL_COLORBAR_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -44,5 +42,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/Composer.h b/ewol/widget/Composer.h
index 93090032..c147c671 100644
--- a/ewol/widget/Composer.h
+++ b/ewol/widget/Composer.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_COMPOSER_H__
-#define __EWOL_WIDGET_COMPOSER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -61,5 +59,3 @@ namespace ewol {
 		std::shared_ptr<ewol::Widget> composerGenerate(enum ewol::widget::Composer::composerMode _mode = ewol::widget::Composer::None, const std::string& _data = "");
 	};
 };
-
-#endif
diff --git a/ewol/widget/Container.h b/ewol/widget/Container.h
index d9f63082..c559b425 100644
--- a/ewol/widget/Container.h
+++ b/ewol/widget/Container.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_CONTAINER_H__
-#define __EWOL_WIDGET_CONTAINER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -72,5 +70,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/Container2.h b/ewol/widget/Container2.h
index f65dd697..e66ae2b6 100644
--- a/ewol/widget/Container2.h
+++ b/ewol/widget/Container2.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_CONTAINER_2_H__
-#define __EWOL_WIDGET_CONTAINER_2_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -174,5 +172,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/ContainerN.h b/ewol/widget/ContainerN.h
index d640d994..a2386f09 100644
--- a/ewol/widget/ContainerN.h
+++ b/ewol/widget/ContainerN.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_CONTAINER_N_H__
-#define __EWOL_WIDGET_CONTAINER_N_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -108,5 +106,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/ContextMenu.h b/ewol/widget/ContextMenu.h
index 98a1ab93..925bc257 100644
--- a/ewol/widget/ContextMenu.h
+++ b/ewol/widget/ContextMenu.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_CONTEXT_MENU_H__
-#define __EWOL_CONTEXT_MENU_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -74,4 +72,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/Entry.h b/ewol/widget/Entry.h
index 6a202396..f2fadd66 100644
--- a/ewol/widget/Entry.h
+++ b/ewol/widget/Entry.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_ENTRY_H__
-#define __EWOL_ENTRY_H__
+#pragma once
 
 #include <etk/types.h>
 #include <regex>
@@ -186,5 +184,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/Gird.h b/ewol/widget/Gird.h
index aa2ac3ca..fc17c9bc 100644
--- a/ewol/widget/Gird.h
+++ b/ewol/widget/Gird.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_GIRD_H__
-#define __EWOL_WIDGET_GIRD_H__
+#pragma once
 
 #include <etk/types.h>
 #include <vector>
@@ -145,5 +143,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/Image.h b/ewol/widget/Image.h
index f39a63f8..b52910f4 100644
--- a/ewol/widget/Image.h
+++ b/ewol/widget/Image.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_IMAGE_H__
-#define __EWOL_IMAGE_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -187,6 +185,3 @@ namespace ewol {
 		};
 	};
 };
-
-
-#endif
diff --git a/ewol/widget/Joystick.h b/ewol/widget/Joystick.h
index 41e997f8..22f9a9d1 100644
--- a/ewol/widget/Joystick.h
+++ b/ewol/widget/Joystick.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_JOYSTICK_H__
-#define __EWOL_JOYSTICK_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -89,4 +87,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/Label.h b/ewol/widget/Label.h
index 90013347..19584b21 100644
--- a/ewol/widget/Label.h
+++ b/ewol/widget/Label.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_LABEL_H__
-#define __EWOL_LABEL_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -79,4 +77,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/Layer.h b/ewol/widget/Layer.h
index 6ae94930..cd143105 100644
--- a/ewol/widget/Layer.h
+++ b/ewol/widget/Layer.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_LAYER_H__
-#define __EWOL_LAYER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -38,4 +36,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/List.h b/ewol/widget/List.h
index faffa819..87a26c3a 100644
--- a/ewol/widget/List.h
+++ b/ewol/widget/List.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_LIST_H__
-#define __EWOL_LIST_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -87,4 +85,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/ListFileSystem.h b/ewol/widget/ListFileSystem.h
index 643e8fce..33c81b41 100644
--- a/ewol/widget/ListFileSystem.h
+++ b/ewol/widget/ListFileSystem.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_LIST_FILE_H__
-#define __EWOL_LIST_FILE_H__
+#pragma once
 
 #include <ewol/widget/List.h>
 #include <etk/os/FSNode.h>
@@ -160,5 +158,4 @@ namespace ewol {
 	};
 };
 
-#endif
 
diff --git a/ewol/widget/Manager.h b/ewol/widget/Manager.h
index c839c921..46f6670b 100644
--- a/ewol/widget/Manager.h
+++ b/ewol/widget/Manager.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_MANAGER_H__
-#define __EWOL_WIDGET_MANAGER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -54,5 +52,3 @@ namespace ewol {
 	};
 };
 
-#endif
-
diff --git a/ewol/widget/Menu.h b/ewol/widget/Menu.h
index 111e0723..9b2dc220 100644
--- a/ewol/widget/Menu.h
+++ b/ewol/widget/Menu.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_MENU_H__
-#define __EWOL_MENU_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/types.h>
@@ -63,4 +61,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/PopUp.h b/ewol/widget/PopUp.h
index ebca5f67..1b07cf8a 100644
--- a/ewol/widget/PopUp.h
+++ b/ewol/widget/PopUp.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_POP_UP_H__
-#define __EWOL_POP_UP_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -87,4 +85,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/ProgressBar.h b/ewol/widget/ProgressBar.h
index 8b50ec98..0e5419f1 100644
--- a/ewol/widget/ProgressBar.h
+++ b/ewol/widget/ProgressBar.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_PROGRESS_BAR_H__
-#define __EWOL_PROGRESS_BAR_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -52,4 +50,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/Scroll.h b/ewol/widget/Scroll.h
index 4475755a..d87fc17d 100644
--- a/ewol/widget/Scroll.h
+++ b/ewol/widget/Scroll.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_SCROLL_H__
-#define __EWOL_WIDGET_SCROLL_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -69,7 +67,6 @@ namespace ewol {
 				virtual void onDraw();
 				virtual void onParameterChangeValue(const ewol::parameter::Ref& _paramPointer);
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/ewol/widget/Sizer.h b/ewol/widget/Sizer.h
index 0160c00c..e77f07f0 100644
--- a/ewol/widget/Sizer.h
+++ b/ewol/widget/Sizer.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SIZER_H__
-#define __EWOL_SIZER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -152,7 +150,6 @@ namespace ewol {
 				virtual void onRegenerateDisplay();
 				virtual void onDraw();
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/ewol/widget/Slider.h b/ewol/widget/Slider.h
index a8981163..10c904c2 100644
--- a/ewol/widget/Slider.h
+++ b/ewol/widget/Slider.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SLIDER_H__
-#define __EWOL_SLIDER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -116,7 +114,6 @@ namespace ewol {
 				virtual bool onEventInput(const ewol::event::Input& _event);
 				virtual void onParameterChangeValue(const ewol::parameter::Ref& _paramPointer);
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/ewol/widget/Spacer.h b/ewol/widget/Spacer.h
index 62ed6919..eff0df50 100644
--- a/ewol/widget/Spacer.h
+++ b/ewol/widget/Spacer.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SPACER_H__
-#define __EWOL_SPACER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/Color.h>
@@ -53,7 +51,6 @@ namespace ewol {
 				virtual void onDraw();
 				virtual void onParameterChangeValue(const ewol::parameter::Ref& _paramPointer);
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/ewol/widget/WSlider.h b/ewol/widget/WSlider.h
index aff85aad..3f771d66 100644
--- a/ewol/widget/WSlider.h
+++ b/ewol/widget/WSlider.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_W_SLIDER_H__
-#define __EWOL_W_SLIDER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -108,8 +106,7 @@ namespace ewol {
 				virtual void periodicCall(const ewol::event::Time& _event);
 				virtual void onParameterChangeValue(const ewol::parameter::Ref& _paramPointer);
 		};
-	};
+	}
 	std::ostream& operator <<(std::ostream& _os, const enum ewol::widget::WSlider::sladingMode _obj);
-};
+}
 
-#endif
diff --git a/ewol/widget/Widget.h b/ewol/widget/Widget.h
index 5864b8cb..e5d88f5c 100644
--- a/ewol/widget/Widget.h
+++ b/ewol/widget/Widget.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_H__
-#define __EWOL_WIDGET_H__
+#pragma once
 
 #include <vector>
 #include <etk/types.h>
@@ -758,4 +756,3 @@ namespace ewol {
 
 #include <ewol/widget/Manager.h>
 
-#endif
diff --git a/ewol/widget/WidgetScrolled.h b/ewol/widget/WidgetScrolled.h
index 2648ea71..c549b1cd 100644
--- a/ewol/widget/WidgetScrolled.h
+++ b/ewol/widget/WidgetScrolled.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_SCROLLED_WIDGET_H__
-#define __EWOL_SCROLLED_WIDGET_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -117,7 +115,6 @@ namespace ewol {
 					m_limitScrolling = std::avg(0.1f, _poucentageLimit,0.9f);
 				};
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/ewol/widget/Windows.h b/ewol/widget/Windows.h
index fcffbd2c..a6a34bb5 100644
--- a/ewol/widget/Windows.h
+++ b/ewol/widget/Windows.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WINDOWS_H__
-#define __EWOL_WINDOWS_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -132,8 +130,6 @@ namespace ewol {
 				};
 				*/
 		};
-	};
-};
-
-#endif
+	}
+}
 
diff --git a/ewol/widget/meta/ColorChooser.h b/ewol/widget/meta/ColorChooser.h
index c8307028..3ad7c694 100644
--- a/ewol/widget/meta/ColorChooser.h
+++ b/ewol/widget/meta/ColorChooser.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_COLOR_CHOOSER_H__
-#define __EWOL_COLOR_CHOOSER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -53,5 +51,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/meta/FileChooser.h b/ewol/widget/meta/FileChooser.h
index efb9ccbf..9ae8a97e 100644
--- a/ewol/widget/meta/FileChooser.h
+++ b/ewol/widget/meta/FileChooser.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_FILE_CHOOSER_H__
-#define __EWOL_FILE_CHOOSER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -102,5 +100,3 @@ namespace ewol {
 		};
 	};
 };
-
-#endif
diff --git a/ewol/widget/meta/Parameter.h b/ewol/widget/meta/Parameter.h
index 4a9f9eee..54f7b217 100644
--- a/ewol/widget/meta/Parameter.h
+++ b/ewol/widget/meta/Parameter.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_WIDGET_PARAMETER_H__
-#define __EWOL_WIDGET_PARAMETER_H__
+#pragma once
 
 #include <etk/types.h>
 #include <etk/types.h>
@@ -55,4 +53,3 @@ namespace ewol {
 	};
 };
 
-#endif
diff --git a/ewol/widget/meta/ParameterList.h b/ewol/widget/meta/ParameterList.h
index 5e88a2b2..51dad8fe 100644
--- a/ewol/widget/meta/ParameterList.h
+++ b/ewol/widget/meta/ParameterList.h
@@ -6,8 +6,7 @@
  * @license APACHE v2.0 (see license file)
  */
 
-#ifndef __EWOL_WIDGET_PARAMETER_LIST_H__
-#define __EWOL_WIDGET_PARAMETER_LIST_H__
+#pragma once
 
 #include <etk/types.h>
 #include <ewol/debug.h>
@@ -81,5 +80,3 @@ namespace ewol {
 };
 
 
-#endif
-
diff --git a/ewol/widget/meta/StdPopUp.h b/ewol/widget/meta/StdPopUp.h
index ddb62632..12964686 100644
--- a/ewol/widget/meta/StdPopUp.h
+++ b/ewol/widget/meta/StdPopUp.h
@@ -5,9 +5,7 @@
  * 
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __EWOL_STD_POP_UP_H__
-#define __EWOL_STD_POP_UP_H__
+#pragma once
 
 #include <ewol/widget/PopUp.h>
 #include <ewol/widget/Label.h>
@@ -79,7 +77,6 @@ namespace ewol {
 			public: // callback function
 				void onCallBackButtonExit();
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/sample/001_HelloWord/appl/Main.h b/sample/001_HelloWord/appl/Main.h
index 8a45fb5e..2e88bafe 100644
--- a/sample/001_HelloWord/appl/Main.h
+++ b/sample/001_HelloWord/appl/Main.h
@@ -5,10 +5,5 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-#ifndef __APPL_MAIN_H__
-#define __APPL_MAIN_H__
-
-
-#endif
+#pragma once
 
diff --git a/sample/001_HelloWord/appl/Windows.h b/sample/001_HelloWord/appl/Windows.h
index 92614217..ecb5cebe 100644
--- a/sample/001_HelloWord/appl/Windows.h
+++ b/sample/001_HelloWord/appl/Windows.h
@@ -5,9 +5,7 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-#ifndef __APPL_WINDOWS_H__
-#define __APPL_WINDOWS_H__
+#pragma once
 
 #include <ewol/widget/Windows.h>
 
@@ -19,7 +17,5 @@ namespace appl {
 		public:
 			DECLARE_FACTORY(Windows);
 	};
-};
+}
 
-
-#endif
\ No newline at end of file
diff --git a/sample/001_HelloWord/appl/debug.h b/sample/001_HelloWord/appl/debug.h
index 75fb1ca2..eaf194a9 100644
--- a/sample/001_HelloWord/appl/debug.h
+++ b/sample/001_HelloWord/appl/debug.h
@@ -5,10 +5,7 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-
-#ifndef __APPL_DEBUG_H__
-#define __APPL_DEBUG_H__
+#pragma once
 
 #include <etk/log.h>
 
@@ -39,5 +36,3 @@ namespace appl {
 			assert(!#cond); \
 		} \
 	} while (0)
-
-#endif
diff --git a/sample/0XX_CustomWidgets/appl/Main.h b/sample/0XX_CustomWidgets/appl/Main.h
index 992aac15..462f0be7 100644
--- a/sample/0XX_CustomWidgets/appl/Main.h
+++ b/sample/0XX_CustomWidgets/appl/Main.h
@@ -6,9 +6,5 @@
  * @license BSD 3 clauses (see license file)
  */
 
-#ifndef __APPL_MAIN_H__
-#define __APPL_MAIN_H__
-
-
-#endif
+#pragma once
 
diff --git a/sample/0XX_CustomWidgets/appl/Windows.h b/sample/0XX_CustomWidgets/appl/Windows.h
index f25ac1cc..c4806ee2 100644
--- a/sample/0XX_CustomWidgets/appl/Windows.h
+++ b/sample/0XX_CustomWidgets/appl/Windows.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD 3 clauses (see license file)
  */
-
-#ifndef __APPL_WINDOWS_H__
-#define __APPL_WINDOWS_H__
+#pragma once
 
 #include <ewol/widget/Windows.h>
 #include <ewol/widget/Composer.h>
@@ -25,7 +23,4 @@ namespace appl {
 			void onCallbackChangeValues();
 			void onCallbackAutoMode();
 	};
-};
-
-
-#endif
\ No newline at end of file
+}
diff --git a/sample/0XX_CustomWidgets/appl/debug.h b/sample/0XX_CustomWidgets/appl/debug.h
index 06c068ec..5950b0fc 100644
--- a/sample/0XX_CustomWidgets/appl/debug.h
+++ b/sample/0XX_CustomWidgets/appl/debug.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD 3 clauses (see license file)
  */
-
-#ifndef __APPL_DEBUG_H__
-#define __APPL_DEBUG_H__
+#pragma once
 
 #include <etk/log.h>
 
@@ -39,5 +37,3 @@ namespace appl {
 		} \
 	} while (0)
 
-#endif
-
diff --git a/sample/0XX_CustomWidgets/appl/widget/VectorDisplay.h b/sample/0XX_CustomWidgets/appl/widget/VectorDisplay.h
index 929e751d..18790668 100644
--- a/sample/0XX_CustomWidgets/appl/widget/VectorDisplay.h
+++ b/sample/0XX_CustomWidgets/appl/widget/VectorDisplay.h
@@ -3,9 +3,7 @@
  * @copyright 2011, Edouard DUPIN, all right reserved
  * @license APACHE v2.0 (see license file)
  */
-
-#ifndef __APPL_WIDGET_VECTOR_DISPLAY_H__
-#define __APPL_WIDGET_VECTOR_DISPLAY_H__
+#pragma once
 
 #include <ewol/widget/Widget.h>
 #include <ewol/compositing/Drawing.h>
@@ -40,7 +38,6 @@ namespace appl {
 				virtual void onRegenerateDisplay();
 				virtual void periodicCall(const ewol::event::Time& _event);
 		};
-	};
-};
+	}
+}
 
-#endif
diff --git a/sample/examplewallpaper/appl/Main.h b/sample/examplewallpaper/appl/Main.h
index 8a45fb5e..5bb64b39 100644
--- a/sample/examplewallpaper/appl/Main.h
+++ b/sample/examplewallpaper/appl/Main.h
@@ -6,9 +6,5 @@
  * @license GPL v3 (see license file)
  */
 
-#ifndef __APPL_MAIN_H__
-#define __APPL_MAIN_H__
-
-
-#endif
+#pragma once
 
diff --git a/sample/examplewallpaper/appl/WidgetDisplay.h b/sample/examplewallpaper/appl/WidgetDisplay.h
index 45275bd1..567ae7c1 100644
--- a/sample/examplewallpaper/appl/WidgetDisplay.h
+++ b/sample/examplewallpaper/appl/WidgetDisplay.h
@@ -5,9 +5,7 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-#ifndef __APPL_WIDGET_DISPLAY_H__
-#define __APPL_WIDGET_DISPLAY_H__
+#pragma once
 
 #include <draw/Color.h>
 #include <ewol/widget/Widget.h>
@@ -43,7 +41,6 @@ namespace appl {
 			virtual bool onEventInput(const ewol::event::Input& _event);
 			virtual void onDraw();
 	};
-};
+}
 
-#endif
 
diff --git a/sample/examplewallpaper/appl/Windows.h b/sample/examplewallpaper/appl/Windows.h
index e7e31fc4..ad78f5ba 100644
--- a/sample/examplewallpaper/appl/Windows.h
+++ b/sample/examplewallpaper/appl/Windows.h
@@ -5,9 +5,7 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-#ifndef __APPL_WINDOWS_H__
-#define __APPL_WINDOWS_H__
+#pragma once
 
 #include <appl/WidgetDisplay.h>
 #include <ewol/widget/Windows.h>
@@ -21,7 +19,4 @@ namespace appl {
 			DECLARE_FACTORY(Windows);
 			virtual ~Windows();
 	};
-};
-
-
-#endif
\ No newline at end of file
+}
diff --git a/sample/examplewallpaper/appl/debug.h b/sample/examplewallpaper/appl/debug.h
index 1596a606..8ab4a494 100644
--- a/sample/examplewallpaper/appl/debug.h
+++ b/sample/examplewallpaper/appl/debug.h
@@ -5,9 +5,7 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-#ifndef __APPL_DEBUG_H__
-#define __APPL_DEBUG_H__
+#pragma once
 
 #include <etk/log.h>
 
@@ -39,5 +37,3 @@ namespace appl {
 		} \
 	} while (0)
 
-#endif
-
diff --git a/tools/visual_test/appl/MainWindows.h b/tools/visual_test/appl/MainWindows.h
index ad4c88b8..02e00841 100644
--- a/tools/visual_test/appl/MainWindows.h
+++ b/tools/visual_test/appl/MainWindows.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __MAIN_WINDOWS_H__
-#define __MAIN_WINDOWS_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Widget.h>
@@ -39,6 +37,5 @@ namespace appl {
 			void updateProperty();
 	};
 };
-#endif
 
 
diff --git a/tools/visual_test/appl/TestButton.h b/tools/visual_test/appl/TestButton.h
index 0e5f389a..8b18e961 100644
--- a/tools/visual_test/appl/TestButton.h
+++ b/tools/visual_test/appl/TestButton.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_BUTTON_H__
-#define __TEST_BUTTON_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Button.h>
@@ -31,6 +29,4 @@ namespace appl {
 			void onCallbackTextToggle(const bool& _value);
 			void onCallbackChangeText();
 	};
-};
-
-#endif
+}
diff --git a/tools/visual_test/appl/TestButtonColor.h b/tools/visual_test/appl/TestButtonColor.h
index 952d6727..d336e1fe 100644
--- a/tools/visual_test/appl/TestButtonColor.h
+++ b/tools/visual_test/appl/TestButtonColor.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_BUTTON_COLOR_H__
-#define __TEST_BUTTON_COLOR_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Widget.h>
@@ -34,6 +32,5 @@ namespace appl {
 			void onCallbackFillY(const bool& _value);
 			void onCallbackChangeColor(const etk::Color<>& _value);
 	};
-};
+}
 
-#endif
diff --git a/tools/visual_test/appl/TestCheckBox.h b/tools/visual_test/appl/TestCheckBox.h
index 1259e690..99464c94 100644
--- a/tools/visual_test/appl/TestCheckBox.h
+++ b/tools/visual_test/appl/TestCheckBox.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_CHECK_BOX_H__
-#define __TEST_CHECK_BOX_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/CheckBox.h>
@@ -31,7 +29,6 @@ namespace appl {
 			void onCallbackTextToggle(const bool& _value);
 			void onCallbackChangeText();
 	};
-};
+}
 
-#endif
 
diff --git a/tools/visual_test/appl/TestDistanceField.h b/tools/visual_test/appl/TestDistanceField.h
index b053c4cf..d38da4f4 100644
--- a/tools/visual_test/appl/TestDistanceField.h
+++ b/tools/visual_test/appl/TestDistanceField.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_DISTANCE_FIELD_H__
-#define __TEST_DISTANCE_FIELD_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Widget.h>
@@ -34,6 +32,5 @@ namespace appl {
 			virtual void onRegenerateDisplay();
 			virtual bool onEventInput(const ewol::event::Input& _event);
 	};
-};
+}
 
-#endif
diff --git a/tools/visual_test/appl/TestImage.h b/tools/visual_test/appl/TestImage.h
index b1704ec2..0beaa001 100644
--- a/tools/visual_test/appl/TestImage.h
+++ b/tools/visual_test/appl/TestImage.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_IMAGE_H__
-#define __TEST_IMAGE_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Widget.h>
@@ -34,6 +32,5 @@ namespace appl {
 			void onCallbackFillY(const bool& _value);
 			void onCallbackChangeImage();
 	};
-};
+}
 
-#endif
diff --git a/tools/visual_test/appl/TestLabel.h b/tools/visual_test/appl/TestLabel.h
index feacaeeb..f4fc6738 100644
--- a/tools/visual_test/appl/TestLabel.h
+++ b/tools/visual_test/appl/TestLabel.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_LABEL_H__
-#define __TEST_LABEL_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Widget.h>
@@ -41,7 +39,6 @@ namespace appl {
 			void onCallbackMaxSize(const bool& _value);
 			void onCallbackChangeLabel();
 	};
-};
+}
 
-#endif
 
diff --git a/tools/visual_test/appl/TestScene.h b/tools/visual_test/appl/TestScene.h
index 67c2fa47..4cdd1b9e 100644
--- a/tools/visual_test/appl/TestScene.h
+++ b/tools/visual_test/appl/TestScene.h
@@ -5,9 +5,7 @@
  * 
  * @license BSD v3 (see license file)
  */
-
-#ifndef __TEST_SCENE_H__
-#define __TEST_SCENE_H__
+#pragma once
 
 #include <appl/debug.h>
 #include <ewol/widget/Widget.h>
@@ -25,4 +23,3 @@ class TestScene : public ewol::widget::Sizer {
 		virtual void onReceiveMessage(const ewol::object::Message& _msg);
 };
 
-#endif
diff --git a/tools/visual_test/appl/debug.h b/tools/visual_test/appl/debug.h
index cad939e5..d48fa3a6 100644
--- a/tools/visual_test/appl/debug.h
+++ b/tools/visual_test/appl/debug.h
@@ -5,10 +5,7 @@
  * 
  * @license GPL v3 (see license file)
  */
-
-
-#ifndef __APPL_DEBUG_H__
-#define __APPL_DEBUG_H__
+#pragma once
 
 #include <etk/log.h>
 
@@ -48,5 +45,3 @@ namespace appl {
 			assert(!#cond); \
 		} \
 	} while (0)
-
-#endif
diff --git a/tools/visual_test/data/gui.xml b/tools/visual_test/data/gui.xml
index 41b8e1f3..a9951c3b 100644
--- a/tools/visual_test/data/gui.xml
+++ b/tools/visual_test/data/gui.xml
@@ -2,6 +2,10 @@
 	<sizer mode="vert"
 	       expand="true,true"
 	       fill="true,true">
+		<spacer expand="true,true" fill="true,true" color="red"/>
+		<spacer expand="true,true" fill="true,true" color="green"/>
+		<spacer expand="true,true" fill="true,true" color="blue"/>
+		<!--
 		<sizer mode="hori"
 		       expand="true,false"
 		       lock="false,true"
@@ -47,5 +51,6 @@
 				<label name="[TEST]TO-TEST" expand="true" fill="true">No widget</label>
 			</sizer>
 		</sizer>
+		-->
 	</sizer>
 </composer>