From 12f02d2917a1c07ec7566d86942c6ae8b7df642f Mon Sep 17 00:00:00 2001
From: fvanroie <fvanroie@users.noreply.github.com>
Date: Fri, 3 Apr 2020 18:41:47 +0200
Subject: [PATCH] Fix Screenshot content length

---
 src/hasp_gui.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/hasp_gui.cpp b/src/hasp_gui.cpp
index 72ac2a62..76b38130 100644
--- a/src/hasp_gui.cpp
+++ b/src/hasp_gui.cpp
@@ -739,14 +739,14 @@ void guiTakeScreenshot(ESP8266WebServer & client)
     void guiTakeScreenshot(WebServer & client)
 #endif // ESP32{
 {
-    webClient = &client;
+    webClient        = &client;
+    lv_disp_t * disp = lv_disp_get_default();
 
-    guiSnapshot = 2;
-    webClient->setContentLength(122 + 320 * 240 * 2);
+    webClient->setContentLength(122 + disp->driver.hor_res * disp->driver.ver_res * sizeof(lv_color_t));
     webClient->send(200, PSTR("image/bmp"), "");
 
+    guiSnapshot = 2;
     guiSendBmpHeader();
-
     lv_obj_invalidate(lv_scr_act());
     lv_refr_now(NULL); /* Will call our disp_drv.disp_flush function */
     guiSnapshot = 0;