描述

 

设置此线性渐变画笔的包模式.

 

C++ Syntax

 

 

FreeBASIC 语法

 

 

参数

 

wrapMode

 

该模式指定区域是如何画这个线性渐变画笔将平铺[in]元.此参数的值必须是下列元素之一：

 

返回值

 

如果该方法成功,则返回Ok,这是对Status枚举元素.

如果这个方法失败,它返回一个枚举的其他元素的Status.

 

备注

 

线性梯度刷的边界线形成一个瓦片.当你画一个线性梯度刷面积,瓷砖重复.线性渐变画笔可以有交替瓦片翻转在一定的方向,如指定的包模式.翻转有反转颜色顺序的效果.

环绕模式默认为WrapModeTile当LinearGradientBrush对象构造.

 

引用文件

 

CGpBrush.inc (include CGdiPlus.inc)

 

示例

 

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

' The following example creates a linear gradient brush and uses it to fill a rectangle.

' Next, the code modifies the brush's wrap mode and uses the modified brush to fill another

' rectangle.

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

SUB Example_SetWrapMode (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 linear gradient brush.

  DIM rc AS GpRect = GDIP_RECT(0, 0, 100, 50)

  DIM linGrBrush AS CGpLinearGradientBrush = CGpLinearGradientBrush(@rc, _

     GDIP_ARGB(255, 255, 0, 0), GDIP_ARGB(255, 0, 0, 255), LinearGradientModeHorizontal)

 

  ' // Fill a large area using the gradient brush with the default wrap mode.

  graphics.FillRectangle(@linGrBrush, 0, 0, 800, 50)

 

  linGrBrush.SetWrapMode(WrapModeTileFlipX)

 

  ' // Fill a large area using the gradient brush with the new wrap mode.

  graphics.FillRectangle(@linGrBrush, 0, 75, 800, 50)

 

END SUB

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