How to redraw the desktop screen

Hello everyone, I'm trying to redraw the screen after printing something on the screen, here is my code :
The comments is the missing code that I need

Code:

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#include <windows.h>
#include <tchar.h>
#include <iostream>


int main()
{
    HDC hdc = CreateCompatibleDC(NULL);
    HBITMAP hbitmap = (HBITMAP)LoadImage(NULL,_T("C:\\Printer.bmp"), IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);


    while (1)
    {   

        // Save the screen before printing

        SelectObject(hdc, hbitmap);
        HDC hdc_x = GetDC(HWND_DESKTOP);
        BitBlt(hdc_x, 488, 359, 300, 300, hdc, 0, 0, SRCCOPY);
        ReleaseDC(HWND_DESKTOP, hdc_x);

        // Print the screen before the printing

        Sleep(1000);
    }
    return 0;
}

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As you can see I want to display something on the screen for 1 frame than delete it by redraw the desktop and wait for 1 sec.
My question is how do I save the screen state before the drawing and how do I redraw it again after.
Thank you all and have a nice day!

Try:

Code:

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HWND = GetDesktopWindow();
InvalidateRect(hwnd, NULL, FALSE);  // or maybe TRUE for last param
UpdateWindow(hwnd);

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