How to fix the size of a main window when moving from one screen resolution to another

Thank you for answering! Since I use MFC the code is a little different from the code in your test app. And I am too unfamiliar with windows programming to identify what must be changed. Below is the ::OnPaint function where my BitMap is loaded, and my attempt to use your Resample-function. It compiles, but no resampled bitmap is loaded onto the canvas. If you have some suggestions I will be very grateful.

maladuk

void CSaulandDlg::OnPaint()
{
if (IsIconic())
{
....
}
else
{
CPaintDC dc( this ); // Device context for painting
CBitmap bmpBackground, *poldbmp;
/*new*/ CBitmap bmpResampled;
CDC memdc;


// Load the bitmap resource
bmpBackground.LoadBitmap( IDB_BACKGROUND );


// Create a compatible memory DC
memdc.CreateCompatibleDC( &dc );

/*new*/ //Create resampled bitmap
/*new*/ bmpResampled.FromHandle(CreateResampledBitmap(dc, (HBITMAP) bmpBackground.m_hObject, 1024, 768, STOCK_FILTER_BOX));

// Select the bitmap into the DC
//poldbmp = memdc.SelectObject( &bmpBackground );
/*new*/ poldbmp = memdc.SelectObject( &bmpResampled );

// Copy (BitBlt) bitmap from memory DC to screen DC
dc.BitBlt( 0, 0, 4700, 4700, &memdc, 0, 0, SRCCOPY );

memdc.SelectObject( poldbmp );
CDialog::OnPaint();
}
}