From 3d01b78ba07b5805cb112d29f51d310f46038661 Mon Sep 17 00:00:00 2001
From: WerWolv <werwolv98@gmail.com>
Date: Sun, 3 Aug 2025 17:55:32 +0200
Subject: [PATCH] build: Allow building and running on 32 bit Windows

---
 CMakePresets.json                                  | 14 +++++++++++++-
 .../imgui/backend/include/opengl_support.h         |  9 +++------
 .../imgui/backend/source/imgui_impl_opengl3.cpp    |  6 +++---
 .../source/content/tools/file_tool_splitter.cpp    |  2 +-
 4 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/CMakePresets.json b/CMakePresets.json
index 2681eae26..1ae409456 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -55,7 +55,19 @@
         "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
         "VCPKG_MANIFEST_DIR": "${sourceDir}/dist"
       }
-    }
+    },
+  {
+      "name": "vs2022-x86",
+      "displayName": "Visual Studio 2022 x86",
+      "generator": "Visual Studio 17 2022",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+          "CMAKE_BUILD_TYPE": "Debug",
+          "CMAKE_GENERATOR_PLATFORM": "Win32",
+          "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
+          "VCPKG_MANIFEST_DIR": "${sourceDir}/dist"
+      }
+  }
   ],
   "buildPresets": [
     {
diff --git a/lib/third_party/imgui/backend/include/opengl_support.h b/lib/third_party/imgui/backend/include/opengl_support.h
index 8e77b3230..fd4d19504 100644
--- a/lib/third_party/imgui/backend/include/opengl_support.h
+++ b/lib/third_party/imgui/backend/include/opengl_support.h
@@ -1,11 +1,8 @@
 #pragma once
 
-#if !defined(WINGDIAPI)
-#define WINGDIAPI extern "C"
-#endif
-
-#if !defined(APIENTRY)
-    #define APIENTRY
+#if defined(OS_WINDOWS)
+    #include <Windows.h>
+    #include <GL/GL.h>
 #endif
 
 #if defined(OS_WEB)
diff --git a/lib/third_party/imgui/backend/source/imgui_impl_opengl3.cpp b/lib/third_party/imgui/backend/source/imgui_impl_opengl3.cpp
index 879b6048f..44549e150 100644
--- a/lib/third_party/imgui/backend/source/imgui_impl_opengl3.cpp
+++ b/lib/third_party/imgui/backend/source/imgui_impl_opengl3.cpp
@@ -120,9 +120,9 @@
 #endif
 
 // IMHEX PATCH BEGIN
-#if !defined(WINGDIAPI)
-#define WINGDIAPI extern "C"
-#define APIENTRY
+#if defined(WIN32)
+#include <Windows.h>
+#include <GL/gl.h>
 #endif
 // IMHEX PATCH END
 
diff --git a/plugins/builtin/source/content/tools/file_tool_splitter.cpp b/plugins/builtin/source/content/tools/file_tool_splitter.cpp
index a52961cee..b7a43330a 100644
--- a/plugins/builtin/source/content/tools/file_tool_splitter.cpp
+++ b/plugins/builtin/source/content/tools/file_tool_splitter.cpp
@@ -77,7 +77,7 @@ namespace hex::plugin::builtin {
                 }
             }
             ImGui::EndDisabled();
-            ImGui::BeginDisabled(splitterTask.isRunning() || selectedItem != sizes.size() - 1);
+            ImGui::BeginDisabled(splitterTask.isRunning() || selectedItem != (i64(sizes.size()) - 1));
             {
                 ImGui::InputScalar("###custom_size", ImGuiDataType_U64, &splitSize);
                 ImGui::SameLine();