From 6b0e85dbe361c637efad6a48db318eccbd5ee014 Mon Sep 17 00:00:00 2001
From: Matteo Dell'Acqua <matteodellacqua@ibilab.it>
Date: Tue, 27 Jan 2026 11:37:38 +0100
Subject: [PATCH] Fix ^CF with empty new font

---
 ...ChangeAlphanumericDefaultFontZplCommandAnalyzer.cs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/BinaryKits.Zpl.Viewer/CommandAnalyzers/ChangeAlphanumericDefaultFontZplCommandAnalyzer.cs b/src/BinaryKits.Zpl.Viewer/CommandAnalyzers/ChangeAlphanumericDefaultFontZplCommandAnalyzer.cs
index 3e9f331..ae9a619 100644
--- a/src/BinaryKits.Zpl.Viewer/CommandAnalyzers/ChangeAlphanumericDefaultFontZplCommandAnalyzer.cs
+++ b/src/BinaryKits.Zpl.Viewer/CommandAnalyzers/ChangeAlphanumericDefaultFontZplCommandAnalyzer.cs
@@ -11,12 +11,19 @@ public override ZplElementBase Analyze(string zplCommand, VirtualPrinter virtual
         {
             string[] zplDataParts = this.SplitCommand(zplCommand);
 
-            virtualPrinter.SetFontName(zplDataParts[0]);
-
             int tmpint;
             int fontHeight = 9;
             int fontWidth = 0;
 
+            if (zplDataParts.Length > 0)
+            {
+                string newFont = zplDataParts[0];
+                if (!string.IsNullOrEmpty(newFont))
+                {
+                    virtualPrinter.SetFontName(newFont);
+                }
+            }
+
             if (zplDataParts.Length > 1 && int.TryParse(zplDataParts[1], out tmpint))
             {
                 fontHeight = tmpint;