Reopen console on windows when started from cmd.exe

src/main.cpp

@@ -6,6 +6,9 @@
 #include <QSettings>
 #include <stdlib.h>
 #include "../thumbnailer/genthumbnail.h"
+#ifdef Q_OS_WIN64
+#include <windows.h>
+#endif
 
 int main(int argc, char *argv[])
 {
@@ -19,6 +22,14 @@ int main(int argc, char *argv[])
     bool useGLES = true;
 #endif
 
+#ifdef Q_OS_WIN64
+    if(AttachConsole(ATTACH_PARENT_PROCESS))
+    {
+        freopen("CONOUT$", "w", stdout);
+        freopen("CONOUT$", "w", stderr);
+    }
+#endif
+
     QCommandLineParser cmd;
     cmd.addOption({"gl", "Use desktop OpenGL. This is default on x86 and MacOS platform."});
     cmd.addOption({"gles", "Use OpenGL ES. This is default on ARM platform."});