创建如图所示的基于对话框的应用程序，在图形显示区绘制一个矩形并用单色画刷填充矩形内部。通过滚动条控件设置填充颜色，并在编辑框中显示颜色的 RGB值，通过单选按钮可以设置矩形的边框线型，“显示图形”复选框可以控制是否显示矩形。设置完成后，单击“显示”按钮在“图形显示区”显示新的绘图效果。 单击“退出”按钮退出程序。



-Created as shown in the dialog-based applications in the graphic display area and draw a rectangle filled with a color brush inside the rectangle. Through the scroll bar control to set the fill color, and in the edit box shows the RGB color values, you can set the radio button rectangle border line, " display graphics"　checkbox to control whether to display the rectangle. After setting, click the " Show"　button in the " graphic display area"　to display the new graphics effects. Click the " Exit"　button to exit the program.