From 350600ed8948e05ffd3cdf957cf229b39a486706 Mon Sep 17 00:00:00 2001
From: "robbin.marcus" <robbin.marcus@gmail.com>
Date: Sat, 24 Sep 2022 23:59:25 +0200
Subject: [PATCH] Add WS_THICKFRAME for resizing undecorated windows

---
 src/null_window.c  | 8 --------
 src/win32_window.c | 5 +++++
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/src/null_window.c b/src/null_window.c
index 1d4809bd..103bf4ee 100644
--- a/src/null_window.c
+++ b/src/null_window.c
@@ -470,14 +470,6 @@ void _glfwFocusWindowNull(_GLFWwindow* window)
     _glfwInputWindowFocus(window, GLFW_TRUE);
 }
 
-void _glfwPlatformDragWindow(_GLFWwindow* window)
-{
-}
-
-void _glfwPlatformResizeWindow(_GLFWwindow* window, int border)
-{
-}
-
 int _glfwPlatformWindowFocused(_GLFWwindow* window)
 {
     return _glfw.null.focusedWindow == window;
diff --git a/src/win32_window.c b/src/win32_window.c
index 89422c4d..024a174e 100644
--- a/src/win32_window.c
+++ b/src/win32_window.c
@@ -58,7 +58,12 @@ static DWORD getWindowStyle(const _GLFWwindow* window)
                 style |= WS_MAXIMIZEBOX | WS_THICKFRAME;
         }
         else
+        {
             style |= WS_POPUP;
+
+            if (window->resizable)
+                style |= WS_THICKFRAME;
+        }
     }
 
     return style;