Windows编程中的图形输出.pdfVIP

第34 卷第5 期 V ol. 34 N o. 5 2006 年10 月 JO U RN A L OF ZHEJ IA N G U N IV ERSIT Y OF T E CH N OL O GY O ct . 2006 W indow s , , 34 1000) : Window s 程序的所有输出其实都是图形. 初学者在学Window s 编程时, 对图形输出常感到 困惑, 不 如何下手. 在Window s 编程中要想使用 GDI 对图形进行输出, 首先就必须理解设备上 下文当前作图工具 如什么样的线什么样的刷子和什么样的字体等) 以及如何把G DI 逻辑坐标 映射到设备坐标等概念. 通过围绕上述几 个概念对Window s 编程中的图形输出进行了方法介绍, 并举例给出了绘制图形的过程, 最后对利用M FC 进行图形输出也作了介绍. : G DI; DC; 绘图; 函数; MF C : T P316. 86 : A : 10064 303 2006) Graphics of Windows program output H U Chunan, OUY A N G Chengt ian Coll ege of Inf ormati on Engin eering , Jian gx i U niver sit y of S cien ce and T echnology , Ganz hou 34 1000, China) Abstract: A ll outputs of Window s prog ram are graphics . M ost of beg inners of t en f eel puzzled and don t know how t o desig n a Window s prog ram . Bef ore using t he GDI in W indo w s pr ogram, the pro pert ies of t he device, paint ing t ools for example w hat is t he line, w hat is t he brush, w hat is the font ) , and how t o m ap t he G DI logical coor dinat es t o the co ordinat es of t he dev ice have t o be comprehended. In this paper, t he concept s about GDI will be introduced. T he case of graphics output in Window s program is ex plained. F inally how to use MFC f or graphics output is present ed. Key words: G DI; D C; plot ; funct ion; M FC . 0 , . V isual C+ + Windo w s , 1 GDI , , . Window s , Window s GDI Graphics Device G DI, Window s , Int erface) , [ 1] ) . G DI )