Кража окна в окне CreateWindow создает "замороженное" окно?

#include <conio.h> 
#include <stdio.h>
#include <Windows.h>
#include <winuser.h>

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LPCWSTR sClassName = L"MyClass";

HWND CreateTheWindow(LPCWSTR WindowTitle) {

    // Create & register the class
    WNDCLASSEX WndClass;
    WndClass.cbSize = sizeof(WNDCLASSEX); WndClass.style = NULL; WndClass.lpfnWndProc = WndProc; 
    WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.lpszClassName = sClassName;
    WndClass.hInstance = NULL; WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); 
    WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    WndClass.lpszMenuName  = NULL;  WndClass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    RegisterClassEx(&WndClass);

    // Create & show the window
    HWND hwnd = CreateWindowEx(WS_EX_STATICEDGE, sClassName, WindowTitle, WS_OVERLAPPEDWINDOW, 
        CW_USEDEFAULT, CW_USEDEFAULT, 320, 240, NULL, NULL, NULL, NULL);

    ShowWindow(hwnd, SW_SHOW); UpdateWindow(hwnd);
    return hwnd;
}

// No idea what's this for, back in JS we simply had to do window.open 
LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
    switch(Message) {
        case WM_CLOSE: DestroyWindow(hwnd); break;
        case WM_DESTROY: PostQuitMessage(0); break;
        default: return DefWindowProc(hwnd, Message, wParam, lParam);
    }
    return 0;
}

// start
void main()
{
    HWND chrome = FindWindow(L"Chrome_WidgetWin_1", NULL);
    HWND mywin = CreateTheWindow(L"HELLO BOSS");

    if(chrome!=0) printf("Got Chrome\r\n"); else printf("Chrome not found\r\n");
    if(mywin!=0) printf("Got yours\r\n"); else printf("Your window not found\r\n");

    SetParent(chrome, mywin);
    SetWindowLong(chrome, GWL_STYLE, WS_CHILDWINDOW | WS_VISIBLE  ); 
    UpdateWindow(chrome); 
    UpdateWindow(mywin);

    _getch();
}