diff -r 80967361f257 -r 21e542c15832 brewpanel/sdlgui.c
--- a/brewpanel/sdlgui.c	Thu Mar 14 19:37:53 2024 +0100
+++ b/brewpanel/sdlgui.c	Fri Mar 15 20:57:49 2024 +0100
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (C) 2015-2020
+ * Copyright (C) 2015-2024
  *   
  * Michiel Broek <mbroek at mbse dot eu>
  *
@@ -27,7 +27,7 @@
 #include "sdlgui.h"
 #include "sockio.h"
 
-#ifdef HAVE_SDL_SDL_H
+#ifdef HAVE_SDL2_SDL_H
 
 #include "lcdfont10x16.h"
 
@@ -44,6 +44,7 @@
 extern int		my_shutdown;
 extern int		debug;
 
+extern SDL_Window	*S_window;
 
 /*-----------------------------------------------------------------------*/
 /*
@@ -104,10 +105,10 @@
     }
 
     /* Set color palette of the LCD font graphics: */
-    SDL_SetColors(pFontGfx, blackWhiteColors, 0, 2);
+    SDL_SetPaletteColors(pFontGfx->format->palette, blackWhiteColors, 0, 2);
 
     /* Set font color 0 as transparent: */
-    SDL_SetColorKey(pFontGfx, (SDL_SRCCOLORKEY|SDL_RLEACCEL), 0);
+    SDL_SetColorKey(pFontGfx, SDL_RLEACCEL, 0);
 
     if (TTF_Init() == -1) {
 	syslog(LOG_NOTICE, "Could not init SDL_ttf");
@@ -242,7 +243,7 @@
     	dr.h = 2;
 
     	SDL_FillRect(pSdlGuiScrn, &dr, color);
-    	SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+//    	SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
     }
 }
 
@@ -287,8 +288,8 @@
 	i++;
     }
 
-    SDL_SetColors(CGchar, blackWhiteColors, 0, 2);
-    SDL_SetColorKey(CGchar, (SDL_SRCCOLORKEY|SDL_RLEACCEL), 0);
+//    SDL_SetColors(CGchar, blackWhiteColors, 0, 2);
+    SDL_SetColorKey(CGchar, SDL_RLEACCEL, 0);
     bg = LCDbg0;
 
     sr.x = sr.y = 0;
@@ -299,7 +300,8 @@
 
     SDL_FillRect(pSdlGuiScrn, &dr, bg);
     SDL_BlitSurface(CGchar, &sr, pSdlGuiScrn, &dr);
-    SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+    //SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+    SDL_UpdateWindowSurface(S_window);
     SDL_FreeSurface(CGchar);
 }
 
@@ -330,7 +332,8 @@
 
     SDL_FillRect(pSdlGuiScrn, &dr, bg);
     SDL_BlitSurface(pFontGfx, &sr, pSdlGuiScrn, &dr);
-    SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+//    SDL_UpdateRect(pSdlGuiScrn, x, y, fontwidth, fontheight);
+    SDL_UpdateWindowSurface(S_window);
 }
 
 
@@ -695,7 +698,8 @@
 				SDLGUI_DrawLEDYellow(dlg, i);
 				break;
 	    }
-	    SDL_UpdateRect(pSdlGuiScrn, dlg[i].x - dlg[i].w, dlg[i].y - dlg[i].w, dlg[i].w * 2, dlg[i].w * 2);
+	    SDL_UpdateWindowSurface(S_window);
+	    //SDL_UpdateRect(pSdlGuiScrn, dlg[i].x - dlg[i].w, dlg[i].y - dlg[i].w, dlg[i].w * 2, dlg[i].w * 2);
 	}
     }
 }
@@ -741,7 +745,8 @@
 	}
     }
 
-    SDL_UpdateRect(pSdlGuiScrn, 0,0,0,0);
+    SDL_UpdateWindowSurface(S_window);
+  //  SDL_UpdateRect(pSdlGuiScrn, 0,0,0,0);
 }
 
 
@@ -798,7 +803,7 @@
     pBgSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, dlgrect.w, dlgrect.h, pSdlGuiScrn->format->BitsPerPixel,
 	                                  pSdlGuiScrn->format->Rmask, pSdlGuiScrn->format->Gmask, pSdlGuiScrn->format->Bmask, pSdlGuiScrn->format->Amask);
     if (pSdlGuiScrn->format->palette != NULL) {
-	SDL_SetColors(pBgSurface, pSdlGuiScrn->format->palette->colors, 0, pSdlGuiScrn->format->palette->ncolors-1);
+	SDL_SetPaletteColors(pBgSurface->format->palette, pSdlGuiScrn->format->palette->colors, 0, pSdlGuiScrn->format->palette->ncolors-1);
     }
 
     if (pBgSurface != NULL) {
@@ -847,7 +852,8 @@
 				    if (dlg[obj].type == SGBUTTON) {
 					dlg[obj].state |= SG_SELECTED;
 					SDLGui_DrawButton(dlg, obj);
-					SDL_UpdateRect(pSdlGuiScrn, dlg[0].x + dlg[obj].x - 2, dlg[0].y + dlg[obj].y - 2, dlg[obj].w + 4, dlg[obj].h + 4);
+					SDL_UpdateWindowSurface(S_window);
+					//SDL_UpdateRect(pSdlGuiScrn, dlg[0].x + dlg[obj].x - 2, dlg[0].y + dlg[obj].y - 2, dlg[obj].w + 4, dlg[obj].h + 4);
 					retbutton = obj + 1000;
 				    }
 				}
@@ -864,7 +870,8 @@
 				    if (dlg[obj].type == SGBUTTON) {
 					dlg[obj].state &= ~SG_SELECTED;
 					SDLGui_DrawButton(dlg, obj);
-					SDL_UpdateRect(pSdlGuiScrn, dlg[0].x + dlg[obj].x - 2, dlg[0].y + dlg[obj].y - 2, dlg[obj].w + 4, dlg[obj].h + 4);
+					SDL_UpdateWindowSurface(S_window);
+					//SDL_UpdateRect(pSdlGuiScrn, dlg[0].x + dlg[obj].x - 2, dlg[0].y + dlg[obj].y - 2, dlg[obj].w + 4, dlg[obj].h + 4);
 					retbutton = obj;
 				    }
 				}