diff -r 68ef2cc3e8d2 -r c5f6f3f1b714 src/global.h
--- a/src/global.h	Wed Jan 18 17:08:25 2023 +0100
+++ b/src/global.h	Fri Jan 20 16:44:08 2023 +0100
@@ -237,6 +237,16 @@
 };
 
 
+struct Images
+{
+    int		pic_type;
+    QByteArray	pic_data;
+    QString	pic_comment;
+    QString	filename;
+    QDateTime	timestamp;
+};
+
+
 struct Equipment
 {
     QString	name;
@@ -687,6 +697,10 @@
     double      ws_sodium;
     double      ws_magnesium;
     double      ws_total_alkalinity;
+    QList<Images>	images_list;	///< List of loaded images.
+    int		images_count;		///< -1 if not yet loaded.
+    int		images_current;		///< -1 or image in focus.
+    bool	images_dirty;
 };