wResize

The math behind window anchoring.

Example (yes unoptomized)

#include "mResize.h"
wResize myWindows;
//Only use this line if you created your menu with the neccessary API calls.
//Prior to adding your child windows to the class.
//MyWindows->AddMenuHeight(MainWindow());
//On your window initalizers
HWND hButton1 = GetDlgItem(MainWindow(), IDC_BUTTON1);
myWindows.AddWindow(MainWindow(), hButton1, true, true, true, true); //this example will resize height and width
//On your dialog process callback
case WM_SIZE:        { return myWindows.ResizeWindows(); }