描述

 

返回该对象的Font度量单位.

 

C++ Syntax

 

 

FreeBASIC 语法

 

 

参数

 

该方法没有参数.

 

返回值

 

此方法返回一个枚举元素的Unit.

 

引用文件

 

CGpFont.inc (include CGdiPlus.inc)

 

示例

 

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

' The following example creates a Font object, gets the unit of measure of the font, and

' then sets the page units of the Graphics object to the returned unit. It then uses the

' Font object to draw text.

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

SUB Example_GetUnit (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 Font object according to the DPI setting

  DIM font AS CGpFont = CGpFont("Arial", AfxPointsToPixelsX(12) / rxRatio)

 

  ' // Get the unit of measure for font

  DIM unit AS GpUnit = font.GetUnit

  ' // Set the Graphics units of graphics to the retrieved unit value.

  graphics.SetPageUnit(unit)

 

  ' // Draw text using font

  DIM solidbrush AS CGpSolidBrush = GDIP_ARGB(255, 0, 0, 0)

  DIM wszText AS WSTRING * 260 = "Here is some text"

  graphics.DrawString(@wszText, -1, @font, 0, 0, @solidbrush)

 

END SUB

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