Class ComponentBase

SampleApps/WebView2APISample/ComponentBase.h:21–35

A component is meant to encapsulate all details required for a specific capability of the AppWindow, typically demonstrating usage of a WebView2 API. Component instances are owned by an AppWindow, which will give each of its components a chance to handle any messages it gets. AppWindow deletes all its components when WebView is closed. Components are meant to be created and registered by AppWind

// user. Components typically take and keep a pointer to their owning AppWindow
// so they can control the WebView.
class ComponentBase
{
public:
    // *result defaults to 0
    virtual bool HandleWindowMessage(
        HWND hWnd,
        UINT message,
        WPARAM wParam,
        LPARAM lParam,
        LRESULT* result)
    {
        return false;
    }
    virtual ~ComponentBase() { }
};