lppt ----------- POINTAPI,指定一个POINTAPI结构数组。其中的第一个结构指定了起点。剩下的点三个一组——包括两个控件点和一个终点
原文:An array of POINTAPI structures. The first structure
specifies the starting point. The remaining points are in groups of three, consisting of
two control points and an end point.
lppt ----------- POINTAPI,指定一个POINTAPI结构数组。其中的第一个结构指定了起点。剩下的点三个一组——包括两个控件点和一个终点
原文:An array of POINTAPI structures. The first structure
specifies the starting point. The remaining points are in groups of three, consisting of
two control points and an end point.
cPoints
Long,lppt数组的总点数
--------------------------------------------------------------------
函数三:
【函数】
PolyDraw
【操作系统】
Win9X:No
WinNT:Yes
【声明】
PolyDraw Lib "gdi32" Alias "PolyDraw" (ByVal hdc As Long, lppt As POINTAPI, lpbTypes As Byte, ByVal cCount As Long) As Long
cCount --------- Long,lppt和lpbTypes数组的大小,设为零表示取得需要的数组大小
原文:The size of the lpPoint and lpTypes array. Set to zero to retrieve the required
array size.
--------------------------------------------------------------------
函数四:
【函数】
Arc
【操作系统】
Win9X:Yes
WinNT:Yes
【声明】
Arc Lib "gdi32" Alias "Arc" (ByVal hdc As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long, ByVal X4 As Long, ByVal Y4 As Long) As Long
【声明】
ArcTo Lib "gdi32" Alias "ArcTo" (ByVal hdc As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long, ByVal X4 As Long, ByVal Y4 As Long) As Long
X4,Y4 ---------- Long,指定圆弧终点
--------------------------------------------------------------------
应该够用了吧!你可以参阅有关API的工具,推荐API-Guide、袁飞Win32API,Snow_API,FoxAPI,Win32API参考大全等。
--------------------------------------------------------------------
部分资料来源于Snow_API及《Delphi 5 API函数开发实例》
--------------------------------------------------------------------
Made by Thirdapple's Studio