fix some types and incorrect info

intern/ghost/intern/GHOST_SystemX11.cpp

@@ -1479,7 +1479,7 @@ void GHOST_SystemX11::getClipboard_xcout(XEvent evt,
 
 			XFree(buffer);
 
-			/* if we have come this far, the propery contains
+			/* if we have come this far, the property contains
 			 * text, we know the size. */
 			XGetWindowProperty(m_display, win, m_xclip_out, 0, (long) pty_size,
 			                   False, AnyPropertyType, &pty_type, &pty_format,

intern/ghost/intern/GHOST_Window.h

@@ -335,7 +335,7 @@ protected:
 	/** Modified state : are there unsaved changes */
 	bool m_isUnsavedChanges;
 	
-	/** Stores wether this is a full screen window. */
+	/** Stores whether this is a full screen window. */
 	bool m_fullScreen;
 
 	/** Stereo visual created. Only necessary for 'real' stereo support,

intern/itasc/kdl/utilities/utility_io.cpp

@@ -106,7 +106,7 @@ int _EatSpace( std::istream& is,int* countp=NULL) {
 
 
 // Eats whites, returns, tabs and the delim character
-//  Checks wether delim char. is encountered.
+//  Checks whether delim char. is encountered.
 void Eat( std::istream& is, int delim )
 {   
     int ch;
@@ -119,7 +119,7 @@ void Eat( std::istream& is, int delim )
 }
 
 // Eats whites, returns, tabs and the delim character
-//  Checks wether delim char. is encountered.
+//  Checks whether delim char. is encountered.
 // EatEnd does not eat all space-like char's at the end.
 void EatEnd( std::istream& is, int delim )
 {   

intern/memutil/MEM_RefCountPtr.h

@@ -130,7 +130,7 @@ protected :
 
 	/**
 	 * Protected constructors
-	 * This class is not for direct instanciation. Sub classes
+	 * This class is not for direct instantiation. Sub classes
 	 * should only be allocated on the heap.
 	 */
 

source/blender/blenkernel/intern/brush.c

@@ -1066,7 +1066,7 @@ void BKE_brush_jitter_pos(const Scene *scene, Brush *brush, const float pos[2],
 	int use_jitter = brush->jitter != 0;
 
 	/* jitter-ed brush gives weird and unpredictable result for this
-	 * kinds of stroke, so manyally disable jitter usage (sergey) */
+	 * kinds of stroke, so manually disable jitter usage (sergey) */
 	use_jitter &= (brush->flag & (BRUSH_RESTORE_MESH | BRUSH_ANCHORED)) == 0;
 
 	if (use_jitter) {

source/blender/blenkernel/intern/softbody.c

@@ -3309,7 +3309,7 @@ static void mesh_to_softbody(Scene *scene, Object *ob)
 			if (ob->softflag & OB_SB_GOAL) {bp->goal = sb->defgoal;}
 		}
 
-		/* to proove the concept
+		/* to proof the concept
 		 * this enables per vertex *mass painting*
 		 */
 
@@ -3798,7 +3798,7 @@ static void softbody_update_positions(Object *ob, SoftBody *sb, float (*vertexCo
 		/* vertexCos came from local world, go global */
 		mul_m4_v3(ob->obmat, bp->origE);
 		/* just to be save give bp->origT a defined value
-		 * will be calulated in interpolate_exciter()*/
+		 * will be calculated in interpolate_exciter() */
 		copy_v3_v3(bp->origT, bp->origE);
 	}
 }

source/blender/blenkernel/intern/tracking.c

@@ -853,7 +853,7 @@ static void track_mask_gpencil_layer_rasterize(int frame_width, int frame_height
 					fp[1] = (stroke_points[i].y - marker->search_min[1]) * frame_height / mask_height;
 				}
 
-				/* TODO: add an option to control wether AA is enabled or not */
+				/* TODO: add an option to control whether AA is enabled or not */
 				PLX_raskterize((float (*)[2])mask_points, stroke->totpoints, mask, mask_width, mask_height, FALSE);
 
 				MEM_freeN(mask_points);

source/blender/blenlib/intern/freetypefont.c

@@ -556,7 +556,7 @@ typedef struct  FT_Outline_
  * Type1 format.
  *
  * Each arc is described through a series of start, end and control points. Each point of the outline
- * has a specific tag which indicates wether it is used to describe a line segment or an arc.
+ * has a specific tag which indicates whether it is used to describe a line segment or an arc.
  *
  *
  * The following rules are applied to decompose the contour's points into segments and arcs :

source/blender/editors/space_image/image_ops.c

@@ -914,12 +914,13 @@ static int image_open_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event)
 
 		if (prop) {
 			PointerRNA oldptr;
+			Image *oldima;
 
 			oldptr = RNA_property_pointer_get(&ptr, prop);
-			ima = (Image *)oldptr.id.data;
-			/* unlikely but better avoid strange crash */
-			if (ima && GS(ima->id.name) != ID_IM) {
-				ima = NULL;
+			oldima = (Image *)oldptr.id.data;
+			/* unlikely to fail but better avoid strange crash */
+			if (oldima && GS(oldima->id.name) != ID_IM) {
+				ima = oldima;
 			}
 		}
 	}

source/blender/editors/transform/transform_conversions.c

@@ -438,7 +438,7 @@ static short apply_targetless_ik(Object *ob)
 					/* rotation */
 					/* [#22409] is partially caused by this, as slight numeric error introduced during
 					 * the solving process leads to locked-axis values changing. However, we cannot modify
-					 * the values here, or else there are huge discreptancies between IK-solver (interactive)
+					 * the values here, or else there are huge discrepancies between IK-solver (interactive)
 					 * and applied poses.
 					 */
 					if (parchan->rotmode > 0)

source/blender/makesdna/DNA_ID.h

@@ -86,7 +86,7 @@ typedef struct IDProperty {
 #define IDP_STRING_SUB_UTF8  0 /* default */
 #define IDP_STRING_SUB_BYTE  1 /* arbitrary byte array, _not_ null terminated */
 /*->flag*/
-#define IDP_FLAG_GHOST (1<<7)  /* this means the propery is set but RNA will return
+#define IDP_FLAG_GHOST (1<<7)  /* this means the property is set but RNA will return
                                 * false when checking 'RNA_property_is_set',
                                 * currently this is a runtime flag */
 

source/blender/makesrna/intern/rna_rna.c

@@ -526,7 +526,7 @@ static int rna_Property_readonly_get(PointerRNA *ptr)
 {
 	PropertyRNA *prop = (PropertyRNA *)ptr->data;
 
-	/* don't use this becaure it will call functions that check the internal
+	/* don't use this because it will call functions that check the internal
 	 * data for introspection we only need to know if it can be edited so the
 	 * flag is better for this */
 /*	return RNA_property_editable(ptr, prop); */

source/blender/makesrna/intern/rna_scene.c

@@ -145,7 +145,7 @@ EnumPropertyItem snap_node_element_items[] = {
 };
 
 
-/* workaround for duplice enums,
+/* workaround for duplicate enums,
  * have each enum line as a defne then conditionally set it or not
  */
 
@@ -771,7 +771,7 @@ static EnumPropertyItem *rna_ImageFormatSettings_color_mode_itemf(bContext *C, P
 #ifdef WITH_FFMPEG
 	/* a WAY more crappy case than B&W flag: depending on codec, file format MIGHT support
 	 * alpha channel. for example MPEG format with h264 codec can't do alpha channel, but
-	 * the same MPEG format with QTRLE codec can easily handle alpga channel.
+	 * the same MPEG format with QTRLE codec can easily handle alpha channel.
 	 * not sure how to deal with such cases in a nicer way (sergey) */
 	if (is_render) {
 		Scene *scene = ptr->id.data;
@@ -1105,7 +1105,7 @@ static void rna_RenderSettings_color_management_update(Main *bmain, Scene *UNUSE
 	
 	if (ntree && scene->use_nodes) {
 		/* images are freed here, stop render and preview threads, until
-		 * Image is threadsafe. when we are changing this propery from a
+		 * Image is threadsafe. when we are changing this property from a
 		 * python script in the render thread, don't stop own thread */
 		if (BLI_thread_is_main())
 			WM_jobs_stop_all(bmain->wm.first);

source/blender/modifiers/intern/MOD_boolean.c

@@ -128,7 +128,7 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
 		return derivedData;
 
 
-	/* 2.64 used this... */
+	/* 2.63 used this... */
 	/* dm = bmd->object->derivedFinal; */
 
 	/* but we want to make sure we can get the object

source/gameengine/Ketsji/KX_SCA_DynamicActuator.cpp

@@ -27,7 +27,7 @@
 
 /** \file gameengine/Ketsji/KX_SCA_DynamicActuator.cpp
  *  \ingroup ketsji
- * Adjust dynamics settins for this object
+ * Adjust dynamics settings for this object
  */
 
 /* Previously existed as:

source/gameengine/Rasterizer/RAS_FramingManager.h

@@ -289,7 +289,7 @@ private :
 
 	/**
 	 * Private constructor - this class is not meant
-	 * for instanciation.
+	 * for instantiation.
 	 */
 
 	RAS_FramingManager(