void CASDDlg::OnPaint()
{
CPaintDC dc(this); // device context for painting
CBitmap bitmap;
bitmap.LoadBitmap(IDB_BITMAP1); //这个IDB_BITMAP1要自己添加
CBrush brush;
brush.CreatePatternBrush(&bitmap);
CBrush* pOldBrush = dc.SelectObject(&brush);
dc.Rectangle(0,0,1500,1000); // 这些参数可以调整图片添加位置和大小
dc.SelectObject(pOldBrush);
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
}
else
{
CDialog::OnPaint();
}
}
