描述

 

现有CustomLineCap对象的内容到一个新的CustomLineCap对象.

 

C++ Syntax

 

 

FreeBASIC 语法

 

 

参数

 

pCustomLineCap

 

指针指向CustomLineCap对象复制已有对象的内容.

 

引用文件

 

CGpLineCaps.inc (include CGdiPlus.inc)

 

示例

 

' ========================================================================================

' The following example creates a CustomLineCap object with a stroke path, creates a second

' CustomLineCap object by cloning the first, and then assigns the cloned cap to a Pen object.

' It then draws a line by using the Pen object.

' ========================================================================================

SUB Example_Clone (BYVAL hdc AS HDC)

 

  ' // Create a graphics object from the window device context

  DIM graphics AS CGpGraphics = hdc

  ' // Get the DPI scaling ratio

  DIM rxRatio AS SINGLE = graphics.GetDpiX / 96

  DIM ryRatio AS SINGLE = graphics.GetDpiY / 96

  ' // Set the scale transform

  graphics.ScaleTransform(rxRatio, ryRatio)

 

  ' // Create a Path object, and add two lines to it

  DIM pts(0 TO 2) AS GpPoint = {GDIP_POINT(-15, -15), GDIP_POINT(0, 0), GDIP_POINT(15, -15)}

'#ifdef __FB_64BIT__

'   DIM pts(0 TO 2) AS GpPoint = {(-15, -15), (0, 0), (15, -15)}

'#else

'   ' // With the 32-bit compiler, the above syntax can't be used because a mess in the

'   ' // FB headers for GdiPlus: GpPoint is defined as Point in 64 bit and as Point_ in 32 bit.

'   DIM pts(0 TO 2) AS GpPoint

'   pts(0).x = -15 : pts(0).y = -15 : pts(2).x = 15: pts(2).y = -15

'#endif

 

  DIM capPath AS CGpGraphicsPath = FillModeAlternate

  capPath.AddLines(@pts(0), 3)

 

  ' // Create a CustomLineCap object

  DIM firstCap AS CGpCustomLineCap = CGpCustomLineCap(NULL, @capPath)

 

' // Create a copy of firstCap

  DIM secondCap AS CGpCustomLineCap

  firstCap.Clone(@secondCap)

 

' // Create a Pen object, assign second cap as the custom end cap, and draw a line

  DIM pen AS CGpPen = CGpPen(GDIP_ARGB(255, 0, 0, 0), 1)

  pen.SetCustomEndCap(@secondCap)

  graphics.DrawLine(@pen, 0, 0, 100, 100)

 

END SUB

' ========================================================================================