From 57ef392c039269ff3b26f20c2db1a081c30616a7 Mon Sep 17 00:00:00 2001
From: Thomas Bernard <miniupnp@free.fr>
Date: Sun, 18 Nov 2018 23:15:09 +0100
Subject: [PATCH] contextual Help for C64 saving

---
 src/helpfile.h        | 12 ++++++++++++
 src/miscfileformats.c |  7 ++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/helpfile.h b/src/helpfile.h
index 1b94bf57..a12b4226 100644
--- a/src/helpfile.h
+++ b/src/helpfile.h
@@ -2216,6 +2216,18 @@ static const T_Help_table helptable_save[] =
   HELP_TEXT ("The TO7, TO7/70 and MO5 only support the")
   HELP_TEXT ("40col mode with 8 (TO7) or 16 (TO7/70 and")
   HELP_TEXT ("MO5) colors.")
+  HELP_TEXT ("")
+  HELP_TEXT ("")
+  HELP_TITLE("COMMODORE 64 FORMATS")
+  HELP_TEXT ("GrafX2 supports saving of :")
+  HELP_TEXT ("- hi-res (320x200) 2 colors in each 8x8block")
+  HELP_TEXT ("- multicolor (160x200) 4 colors in each 4x8")
+  HELP_TEXT ("  block, with a common background color")
+  HELP_TEXT ("- FLI (Flexible Line Interpretation) based")
+  HELP_TEXT ("  on multicolor with in each 4x1 block :")
+  HELP_TEXT ("  1 background color common to the line,")
+  HELP_TEXT ("  1 color common for the 4x8 block and")
+  HELP_TEXT ("  2 specific colors.")
 };
 static const T_Help_table helptable_load[] =
 {
diff --git a/src/miscfileformats.c b/src/miscfileformats.c
index 9b03279a..0ab45725 100644
--- a/src/miscfileformats.c
+++ b/src/miscfileformats.c
@@ -3045,7 +3045,12 @@ static int Save_C64_window(enum c64_format *saveFormat, byte *saveWhat, byte *lo
   do
   {
     button = Window_clicked_button();
-    switch(button)
+    if (Is_shortcut(Key, 0x100+BUTTON_HELP))
+    {
+      Key = 0;
+      Window_help(BUTTON_SAVE, "COMMODORE 64 FORMATS");
+    }
+    else switch(button)
     {
       case 3: // Save what
         *saveWhat = Window_attribute2;