MgraFontScale

Board	Supported
Host System	Yes
V4L2	Yes
Clarity UHD	Yes
Concord PoE	No
GenTL	Yes
GevIQ	Yes
GigE Vision	Yes
Indio	No
Iris GTX	Yes
Radient eV-CL	Yes
Rapixo CL	Yes
Rapixo CoF	Yes
Rapixo CXP	Yes
USB3 Vision	Yes

Set the font scale of a 2D graphics context.

Syntax

void MgraFontScale(
    AIL_ID     ContextGraId,  //out
    AIL_DOUBLE XFontScale,    //in
    AIL_DOUBLE YFontScale     //in
)

Description

This function sets both the vertical and horizontal scaling factor settings of the specified 2D graphics context for use with subsequent MgraText function calls. These settings only apply to bitmap fonts. When using TrueType fonts, use MgraControl with M_FONT_SIZE to set the font size.

To change the font scale for graphics already added to a 2D graphics list, use MgraControlList.

Parameters

ContextGraId (out, AIL_ID)

Specifies the identifier of the 2D graphics context for which to set the font scale. This parameter must be set to one of the following values:

For specifying the 2D graphics context

Value	Description
M_DEFAULT	Specifies that the default 2D graphics context of the current Aurora Imaging Library application is used.

Note: Note that there is a different default 2D graphics context for each thread. | | 2D graphics context identifier | Specifies a valid 2D graphics context identifier, which you have allocated using MgraAlloc. |

XFontScale (in, AIL_DOUBLE)

Specifies the X-scale-factor by which to multiply the width of the font characters. This parameter can be independently set to any positive floating-point value. The default scale factor is 1.0.

YFontScale (in, AIL_DOUBLE)

Specifies the Y-scale-factor by which to multiply the height of the font characters. This parameter can be independently set to any positive floating-point value. The default scale factor is 1.0.