forward/back buttons working & initial "save"

SpriteLibrary/SpriteEntryForm.Designer.cs

@@ -171,6 +171,7 @@
             this.btnApply.TabIndex = 10;
             this.btnApply.Text = "Apply";
             this.btnApply.UseVisualStyleBackColor = true;
+            this.btnApply.Click += new System.EventHandler(this.btnApply_Click);
             // 
             // btnNewSprite
             // 
@@ -222,6 +223,7 @@
             this.btnBack.TabIndex = 16;
             this.btnBack.Text = "<";
             this.btnBack.UseVisualStyleBackColor = true;
+            this.btnBack.Click += new System.EventHandler(this.btnBack_Click);
             // 
             // btnFwd
             // 
@@ -232,6 +234,7 @@
             this.btnFwd.TabIndex = 17;
             this.btnFwd.Text = ">";
             this.btnFwd.UseVisualStyleBackColor = true;
+            this.btnFwd.Click += new System.EventHandler(this.btnFwd_Click);
             // 
             // lblCountSprites
             // 

SpriteLibrary/SpriteEntryForm.cs

@@ -280,5 +280,37 @@ namespace SpriteLibrary
             WeAreDragging = false;
 
         }
+
+        private void btnApply_Click(object sender, EventArgs e)
+        {
+            if(CurrentSIIndex >0 && CurrentSIIndex < SpriteInformation.Count)
+            {
+                SpriteInformation[CurrentSIIndex].CopyFrom(TempInformation);
+            }
+            else
+            {
+                SpriteInformation.Add(TempInformation);
+                CurrentSIIndex = SpriteInformation.IndexOf(TempInformation);
+            }
+            UpdateMenu();
+        }
+
+        private void btnFwd_Click(object sender, EventArgs e)
+        {
+            if (SpriteInformation.Count == 0) return; //nothing to do 
+            CurrentSIIndex++;
+            if (CurrentSIIndex >= SpriteInformation.Count) CurrentSIIndex = 0;
+            SpriteInformationToForm();
+            UpdateMenu();
+        }
+
+        private void btnBack_Click(object sender, EventArgs e)
+        {
+            if (SpriteInformation.Count == 0) return; //nothing to do
+            CurrentSIIndex--;
+            if (CurrentSIIndex < 0) CurrentSIIndex = SpriteInformation.Count - 1;
+            SpriteInformationToForm();
+            UpdateMenu();
+        }
     }
 }