Rewrote hotkeys handling

Form1.Designer.cs

@@ -662,6 +662,7 @@ namespace photo_sorter
             this.Controls.Add(this.menuStrip1);
             this.Controls.Add(this.split_container_main);
             this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.KeyPreview = true;
             this.MainMenuStrip = this.menuStrip1;
             this.MinimumSize = new System.Drawing.Size(1024, 480);
             this.Name = "form_main";

Form1.cs

@@ -273,29 +273,21 @@ namespace photo_sorter
             }
         }
 
-        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
+        protected override bool ProcessCmdKey(ref Message msg, Keys key_data)
         {
             if (tsi_enableGlobalHotkeys.Checked)
             {
-                if (keyData == Keys.Enter)
-                {
-                    sort_image();
-                    return true;
-                }
-                if (keyData == Keys.PageUp)
+                switch (key_data)
                 {
+                    case Keys.PageUp:
                         if (global.filecount > 1)
                             prev_image();
                         return true;
-                }
-                if (keyData == Keys.PageDown)
-                {
+                    case Keys.PageDown:
                         if (global.filecount > 1)
                             next_image();
                         return true;
-                }
-                if (keyData == Keys.Home)
-                {
+                    case Keys.Shift | Keys.Home:
                         if (global.filecount > 1)
                         {
                             status_msg("Loading first image...");
@@ -303,9 +295,7 @@ namespace photo_sorter
                             update_image();
                         }
                         return true;
-                }
-                if (keyData == Keys.End)
-                {
+                    case Keys.Shift | Keys.End:
                         if (global.filecount > 1)
                         {
                             status_msg("Loading final image...");
@@ -313,9 +303,18 @@ namespace photo_sorter
                             update_image();
                         }
                         return true;
+                    case Keys.Enter:
+                        sort_image();
+                        return true;
+                    case Keys.Delete:
+                        delete_image();
+                        return true;
+                    case Keys.Shift | Keys.Enter:
+                        delete_image();
+                        return true;
                 }
             }
-            return base.ProcessCmdKey(ref msg, keyData);
+            return base.ProcessCmdKey(ref msg, key_data);
         }
 
     public void next_image()