From b48b0c1296eb2874771ecee455cb6f8515202d10 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Sun, 24 Jun 2018 02:21:17 +0200
Subject: [PATCH] Platform: properly redraw GlfwApplication restored from
 minimize.

Lots of things unfinished here.
---
 src/Magnum/Platform/GlfwApplication.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Magnum/Platform/GlfwApplication.cpp b/src/Magnum/Platform/GlfwApplication.cpp
index fcfd93e5a..f3f99c413 100644
--- a/src/Magnum/Platform/GlfwApplication.cpp
+++ b/src/Magnum/Platform/GlfwApplication.cpp
@@ -344,6 +344,10 @@ bool GlfwApplication::tryCreate(const Configuration& configuration, const GLConf
 
 void GlfwApplication::setupCallbacks() {
     glfwSetWindowUserPointer(_window, this);
+    glfwSetWindowRefreshCallback(_window, [](GLFWwindow* const window){
+        /* Properly redraw after the window is restored from minimized state */
+        static_cast<GlfwApplication*>(glfwGetWindowUserPointer(window))->drawEvent();
+    });
     glfwSetFramebufferSizeCallback(_window, [](GLFWwindow* const window, const int w, const int h) {
         static_cast<GlfwApplication*>(glfwGetWindowUserPointer(window))->viewportEvent({w, h});
     });