refactor

server/src/main.cpp

@@ -0,0 +1,15 @@
+#include "window/candidate_window.h"
+
+int CALLBACK WinMain(_In_ HINSTANCE hInstance, _In_ HINSTANCE hPrevInstance,
+                     _In_ LPSTR lpCmdLine, _In_ int nCmdShow)
+{
+    SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
+
+    RegisterCandidateWindowMessage();
+
+    WNDCLASSEX wcex;
+    RegisterCandidateWindowClass(wcex, hInstance);
+    int ret = CreateCandidateWindow(hInstance);
+
+    return ret;
+}