implement dpi aware with ui zoom on windows

src/main.cpp

@@ -8,6 +8,7 @@
 #include "keymap.h"
 #include "../resource.h"
 
+#include <shellscalingapi.h>
 #include <WbemCli.h>
 #include "wacom.h"
 #include <deque>
@@ -289,6 +290,8 @@ int main(int argc, char** argv)
     WNDCLASS wc;
     PIXELFORMATDESCRIPTOR pfd;
 
+    SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
+
     if (argc == 1)
         App::I.initLog();
 
@@ -416,6 +419,16 @@ int main(int argc, char** argv)
         }
     }
 
+    auto monitor = MonitorFromWindow(hWnd, MONITOR_DEFAULTTONEAREST);
+    auto x = unsigned{};
+    auto y = unsigned{};
+    GetDpiForMonitor(monitor, MDT_EFFECTIVE_DPI, &x, &y);
+    App::I.zoom = (float)x / 96.f;
+//     SetWindowPos(hWnd, NULL, 0, 0,
+//         (clientRect.right - clientRect.left) * App::I.zoom,
+//         (clientRect.bottom - clientRect.top) * App::I.zoom,
+//         SWP_NOREPOSITION | SWP_NOOWNERZORDER);
+
     App::I.init();
 
     ShowWindow(hWnd, SW_NORMAL);

src/pch.cpp

@@ -20,4 +20,5 @@
     #pragma comment(lib, "glew32.lib")
     #pragma comment(lib, "wbemuuid.lib")
     #pragma comment(lib, "Shlwapi.lib")
+    #pragma comment(lib, "Shcore.lib")
 #endif // _WIN32