diff --git a/src/QtGui/qmainwindow.cpp b/src/QtGui/qmainwindow.cpp
index cb68478..88bae95 100644
--- a/src/QtGui/qmainwindow.cpp
+++ b/src/QtGui/qmainwindow.cpp
@@ -10,6 +10,8 @@ Napi::Object QMainWindowWrap::Init(Napi::Env env, Napi::Object exports)
     // clang-format off
     Napi::Function func = DefineClass(env, "QMainWindow", {
         InstanceMethod("getClosed", &QMainWindowWrap::getClosed),
+        InstanceMethod("showFullScreen", &QMainWindowWrap::showFullScreen),
+        InstanceMethod("showNormal", &QMainWindowWrap::showNormal),
         QWIDGET_JS_DEFINES(QMainWindowWrap)
     });
     // clang-format on
@@ -51,5 +53,17 @@ Napi::Value QMainWindowWrap::getClosed(const Napi::CallbackInfo &info)
     return Napi::Boolean::New(env, q_->closed);
 }
 
+Napi::Value QMainWindowWrap::showFullScreen(const Napi::CallbackInfo &info)
+{
+    q_->showFullScreen();
+    return Napi::Value();
+}
+
+Napi::Value QMainWindowWrap::showNormal(const Napi::CallbackInfo &info)
+{
+    q_->showNormal();
+    return Napi::Value();
+}
+
 // QWidget functions
 QWIDGET_BASE_FUNCS(QMainWindowWrap)
\ No newline at end of file
diff --git a/src/QtGui/qmainwindow.hpp b/src/QtGui/qmainwindow.hpp
index 91850a6..cbb443a 100644
--- a/src/QtGui/qmainwindow.hpp
+++ b/src/QtGui/qmainwindow.hpp
@@ -22,6 +22,8 @@ class QMainWindowWrap : public Napi::ObjectWrap<QMainWindowWrap>
   static Napi::FunctionReference constructor;
 
   Napi::Value getClosed(const Napi::CallbackInfo &info);
+  Napi::Value showFullScreen(const Napi::CallbackInfo &info);
+  Napi::Value showNormal(const Napi::CallbackInfo &info);
 
   // QWidget Funcs
   QWIDGET_DEFS