The DriverStringOptions enumeration specifies the spacing, orientation, and quality of the rendering for driver strings.

 

C++ Syntax

 

typedef enum {

DriverStringOptionsCmapLookup = 1,

DriverStringOptionsVertical = 2,

DriverStringOptionsRealizedAdvance = 4,

DriverStringOptionsLimitSubpixel = 8

} DriverStringOptions;

 

FreeBASIC 语法

 

enum

DriverStringOptionsCmapLookup      = 1

DriverStringOptionsVertical        = 2

DriverStringOptionsRealizedAdvance = 4

DriverStringOptionsLimitSubpixel   = 8

end enum

 

常数

 

DriverStringOptionsCmapLookup

 

Specifies that the positions of the glyphs are taken from a character map lookup table. If this flag is not set, the positions are taken from an array of coordinates.

 

DriverStringOptionsVertical

 

Specifies that the string is displayed vertically.

 

DriverStringOptionsRealizedAdvance

 

Specifies that the glyph positions are calculated from the position of the first glyph. If this flag is not set, the glyph positions are obtained from an array of coordinates.

 

DriverStringOptionsLimitSubpixel

 

Specifies that less memory should be used for cache of antialiased glyphs. This also produces lower quality. If this flag is set, more memory is used, but the quality is higher.