Make launcher window use dark mode

src/client/launcher/window.cpp

@@ -1,6 +1,10 @@
 #include <std_include.hpp>
 #include "window.hpp"
 
+#ifndef DWMWA_USE_IMMERSIVE_DARK_MODE
+#define DWMWA_USE_IMMERSIVE_DARK_MODE 20
+#endif
+
 namespace
 {
 	thread_local uint32_t window_count = 0;
@@ -34,6 +38,10 @@ window::window(const std::string& title, const int width, const int height,
 	this->handle_ = CreateWindowExA(NULL, this->wc_.lpszClassName, title.data(), flags, x, y, width, height, nullptr,
 		nullptr, this->wc_.hInstance, this);
 
+	BOOL value = TRUE;
+	DwmSetWindowAttribute(this->handle_,
+		DWMWA_USE_IMMERSIVE_DARK_MODE, &value, sizeof(value));
+
 	SendMessageA(this->handle_, WM_DPICHANGED, 0, 0);
 	ShowWindow(this->handle_, SW_SHOW);
 	SetForegroundWindow(this->handle_);

src/client/launcher/window.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#pragma comment (lib, "dwmapi.lib")
 
 class window
 {

src/client/std_include.hpp

@@ -50,6 +50,7 @@
 #include <atlsafe.h>
 #include <iphlpapi.h>
 #include <wincrypt.h>
+#include <dwmapi.h>
 #include <shellscalingapi.h>
 #include <d3d11.h>
 #include <dxgi1_6.h>