Hack in ImGui::SFML focus on launch & cleanup

GlosSITarget/GlosSITarget.vcxproj

@@ -159,7 +159,6 @@
   <ItemGroup>
     <ClCompile Include="..\deps\imgui-sfml\imgui-SFML.cpp" />
     <ClCompile Include="..\deps\imgui\imgui.cpp" />
-    <ClCompile Include="..\deps\imgui\imgui_demo.cpp" />
     <ClCompile Include="..\deps\imgui\imgui_draw.cpp" />
     <ClCompile Include="..\deps\imgui\imgui_tables.cpp" />
     <ClCompile Include="..\deps\imgui\imgui_widgets.cpp" />

GlosSITarget/GlosSITarget.vcxproj.filters

@@ -72,9 +72,6 @@
     <ClCompile Include="..\deps\imgui-sfml\imgui-SFML.cpp">
       <Filter>Source Files\imgui-sfml</Filter>
     </ClCompile>
-    <ClCompile Include="..\deps\imgui\imgui_demo.cpp">
-      <Filter>Source Files\imgui</Filter>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="SteamTarget.h">

GlosSITarget/Overlay.cpp

@@ -1,8 +1,30 @@
+/*
+Copyright 2021 Peter Repukat - FlatspotSoftware
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
 #include "Overlay.h"
 
-Overlay::Overlay(sf::RenderWindow& window, const std::function<void()>& on_close) : window_(window), on_close_(on_close)
+#include <utility>
+
+Overlay::Overlay(sf::RenderWindow& window, std::function<void()> on_close) : window_(window), on_close_(std::move(on_close))
 {
     ImGui::SFML::Init(window_);
+
+    //Hack: Trick ImGui::SFML into thinking we already have focus (otherwise only notices after focus-lost)
+    const sf::Event ev(sf::Event::GainedFocus);
+    ProcessEvent(ev);
+
     ImGuiIO& io = ImGui::GetIO();
     io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
     io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
@@ -102,7 +124,7 @@ void Overlay::update()
 
         std::ranges::for_each(OVERLAY_ELEMS_, [](const auto& fn) { fn(); });
 
-        ImGui::ShowDemoWindow();
+        // ImGui::ShowDemoWindow();
 
         if (closeButton()) {
             return;

GlosSITarget/Overlay.h

@@ -1,3 +1,18 @@
+/*
+Copyright 2021 Peter Repukat - FlatspotSoftware
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
 #pragma once
 #include <functional>
 #include <string>
@@ -11,7 +26,7 @@
 
 class Overlay {
   public:
-    Overlay(sf::RenderWindow& window, const std::function<void()>& on_close);
+    Overlay(sf::RenderWindow& window, std::function<void()> on_close);
 
     void setEnabled(bool enabled);
     bool isEnabled() const;

GlosSITarget/TargetWindow.cpp

@@ -44,7 +44,7 @@ TargetWindow::TargetWindow(std::function<void()> on_close, std::vector<std::stri
     // For some completely odd reason, the Background becomes black when enabled dpi-awareness and making the window desktop-size.
     // Scaling down by 1px each direction is barely noticeable and works.
     window_.create(sf::VideoMode(desktop_mode.width - 1, desktop_mode.height - 1, 32), "GlosSITarget", sf::Style::None);
-    //window_.create(sf::VideoMode(1920, 1080, 24), "GlosSITarget");
+    //window_.create(sf::VideoMode(1920, 1080, 32), "GlosSITarget");
 #else
     window_.create(desktop_mode, "GlosSITarget", sf::Style::None);
 #endif
@@ -54,6 +54,7 @@ TargetWindow::TargetWindow(std::function<void()> on_close, std::vector<std::stri
     HWND hwnd = window_.getSystemHandle();
     auto dpi = GetWindowDPI(hwnd);
     spdlog::debug("Screen DPI: {}", dpi);
+
     // transparent windows window...
     auto style = GetWindowLong(hwnd, GWL_STYLE);
     style &= ~WS_OVERLAPPED;

GlosSITarget/imgui.ini

@@ -0,0 +1,40 @@
+[Window][Debug##Default]
+Pos=60,60
+Size=400,400
+Collapsed=0
+
+[Window][Log]
+Pos=80,65
+Size=583,843
+Collapsed=0
+
+[Window][##CloseButton]
+Pos=2503,-24
+Size=80,56
+Collapsed=0
+
+[Window][Hidden Devices]
+Pos=751,66
+Size=664,751
+Collapsed=0
+
+[Window][Dear ImGui Demo]
+Pos=1531,148
+Size=550,680
+Collapsed=0
+
+[Window][Dear ImGui Style Editor]
+Pos=1022,358
+Size=339,902
+Collapsed=0
+
+[Window][Example: Log]
+Pos=397,318
+Size=785,402
+Collapsed=0
+
+[Window][About Dear ImGui]
+Pos=975,520
+Size=570,442
+Collapsed=0
+