Fix compilation error introduced by previous commit.

Signed-off-by: Yuhang Zhao <2546789017@qq.com>

main_unix.cpp

@@ -5,14 +5,6 @@
 int main(int argc, char *argv[]) {
     // High DPI scaling is enabled by default from Qt 6
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
-    // Windows: we are using the manifest file to get maximum compatibility
-    // because some APIs are not supprted on old systems such as Windows 7
-    // and Windows 8. And once we have set the DPI awareness level in the
-    // manifest file, any attemptation to try to change it through API will
-    // fail. In other words, Qt won't be able to enable or disable high DPI
-    // scaling or change the DPI awareness level once we have set it in the
-    // manifest file. So the following two lines are uesless actually (However,
-    // they are still useful on other platforms).
     QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QGuiApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif

main_windows.cpp

@@ -188,5 +188,5 @@ int main(int argc, char *argv[]) {
 }
 
 #ifdef QT_QUICK_LIB
-#include "main.moc"
+#include "main_windows.moc"
 #endif

winnativeeventfilter.cpp

@@ -40,6 +40,11 @@
 #endif
 #include <QtMath>
 
+namespace {
+
+// All the following enums, structs and function prototypes are copied from
+// Windows 10 SDK directly, without any modifications.
+
 #ifdef IsMinimized
 #undef IsMinimized
 #endif
@@ -48,11 +53,6 @@
 #undef IsMaximized
 #endif
 
-namespace {
-
-// All the following enums, structs and function prototypes are copied from
-// Windows 10 SDK directly, without any modifications.
-
 // Only available since Windows 2000
 #define IsMinimized m_lpIsIconic