Add Window::isEmbed() method, for convenience

Signed-off-by: falkTX <falktx@gmail.com>

dgl/Window.hpp

@@ -92,6 +92,8 @@ public:
     bool openFileBrowser(const FileBrowserOptions& options);
 #endif
 
+    bool isEmbed() const noexcept;
+
     bool isVisible() const noexcept;
     void setVisible(bool yesNo);
 

dgl/src/Window.cpp

@@ -1270,6 +1270,11 @@ bool Window::openFileBrowser(const FileBrowserOptions& options)
 }
 #endif
 
+bool Window::isEmbed() const noexcept
+{
+    return pData->fUsingEmbed;
+}
+
 bool Window::isVisible() const noexcept
 {
     return pData->fVisible;