描述

 

用自身和另一个矩阵的乘积更新画笔的变换矩阵.

 

C++ Syntax

 

 

FreeBASIC 语法

 

 

参数

 

pMatrix

 

[in]指向矩阵乘以这个刷的电流变换矩阵.

 

order

 

该MatrixOrder指定相乘的顺序[in, optional]元.MatrixOrderPrepend指定传递矩阵是在左边,和MatrixOrderAppend指定传递矩阵是正确的.默认值是MatrixOrderPrepend.

 

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.

 

引用文件

 

CGpBrush.inc (include CGdiPlus.inc)

 

示例

 

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

' The following example creates a texture brush and sets the transformation of the brush.

' The code then uses the transformed brush to fill a rectangle.

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

SUB Example_MultiplyTransform (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)

 

  ' // Horizontal stretch

  DIM matrix AS CGpMatrix = CGpMatrix(3, 0, 0, 1, 0, 0)

 

  ' // Create a texture brush, and set its transformation.

  DIM pImage AS CGpImage = "HouseAndTree.gif"

  DIM textureBrush AS CGpTextureBrush = @pImage

 

  textureBrush.RotateTransform(30)   ' // rotate

  textureBrush.MultiplyTransform(@matrix, MatrixOrderAppend)   ' // stretch

  graphics.FillRectangle(@textureBrush, 0, 0, 400, 200)

 

END SUB

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