PNG作为背景图像 [英] PNG as background image

问题描述

我想知道有什么方法可以将.png文件作为SDI或基于对话框的应用程序的背景。



regds

Hi,

I want to know is there any way by which we can loag .png file as a background of SDI or dialog based application.

regds

推荐答案

Windows仅支持用于在曲面上绘制的位图图像。因此，必须首先将PNG图像转换为位图。这可以通过MFC CImage 类完成：

Windows supports only bitmap images for drawing on the surface. So the PNG image must be converted to a bitmap first. This can be done with the MFC CImage class:

CImage image;
image.Load(_T("image.png"));
CBitmap bitmap;
bitmap.Attach(image.Detach());

上面加载的位图图像现在可以用作任何 CWnd的背景窗口覆盖 OnEraseBkgnd（）方法并复制位图。



见此CP文章：对话框的位图背景 [ ^ ]。

The above loaded bitmap image can be now used as background for any CWnd window by overwriting the OnEraseBkgnd() method and copying the bitmap.

See also this CP article: Bitmap Backgrounds For Dialog Boxes[^].

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