jamo42 / wwpw

A object-oriented wrapper for the windows window procedure.

Windows Window Procedure Wrapper

A object-oriented wrapper for the windows window procedure.

Usage

Definig your window class

Example:

class Window : public ww::WindowBase<Window> {
public:
    LRESULT CALLBACK HandleMessage(UINT Message, WPARAM WParam, LPARAM LParam) override {
        // Handle messages here
    }

    static constexpr LPCTSTR ClassName = "my_window_class";
};

The HandleMessage function

This replaces the WindowProc function. The parameters Message, WParam and LParam are the parameters passed to the internal WindowProc function. The window handle is not passed as an argument as it can be accessed as a member of the window class.

The ClassName value

This defines the name of the window class the window uses. This does not have to be unique across multiple window classes.

Creating a window

Example:

Window wnd;
ww::CreateStruct params = {...};
wnd.Create(params);
wnd.Show(nCmdShow);

WindowBase::Create

Creates the window with the given parameters.

WindowBase::Show(int CmdShow)

Shows the window in the given show mode. The first time this is called this should be the nCmdShow parameter passed obtained by the WinMain. For more information about this value see the ShowWindow documentation.

The CreateStruct

The struct is defined as

struct CreateStruct {
	LPCTSTR Name;
	int     Width   = CW_USEDEFAULT;
	int     Height  = CW_USEDEFAULT;
	int     X       = CW_USEDEFAULT;
	int     Y       = CW_USEDEFAULT;
	HWND    Parent  = NULL;
	LONG    Style   = WS_OVERLAPPEDWINDOW;
	HMENU   Menu    = NULL;
	DWORD   ExStyle = 0;
};

Fields:

• Name - The window title
• Width, Heigh - The dimensions of the window
• X, Y - The position of the window
• Parent - The parent window
• Style - The window style
• Menu - The menu to use
• ExStyle - The extended window style