MFC程序如何实现给对话框添加背景图片2015-05-031.插入一个Bitmap的资源图片,假设资源名称为:IDC_BITMAP12.在CXXXDialog::OnPaint()中实现:
void CMyDialogDlg::OnPaint(){if (IsIconic()){CPaintDC dc(this); // 用于绘制的设备上下文SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);// 使图标在工作区矩形中居中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;// 绘制图标dc.DrawIcon(x, y, m_hIcon);}else{//// 给窗体添加背景//CPaintDC dc(this);CRect rc;GetClientRect(&rc);CDC dcMem;dcMem.CreateCompatibleDC(&dc);CBitmap bmpBackground;bmpBackground.LoadBitmap(IDB_BITMAP1);BITMAP bitmap;bmpBackground.GetBitmap(&bitmap);CBitmap* pbmpPri = dcMem.SelectObject(&bmpBackground);dc.StretchBlt(0,0,rc.Width(), rc.Height(), &dcMem,0,0,bitmap.bmWidth, bitmap.bmHeight, SRCCOPY);}}