L_AnnGetGaugeLength

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnGetGaugeLength(hObject, pdLength)

HANNOBJECT hObject;	/* handle to the annotation automation object */
L_DOUBLE *pdLength;	/* address of the variable to be updated */

Gets the length of the gauge (the perpendicular lines at the ends of the Ruler object).

This function is available in the Document and Medical Imaging toolkits.

Parameter	Description
hObject	Handle to the annotation automation object.
pdLength	Address of the variable to be updated with the object's gauge length.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

The gauge length applies only to Automation and Ruler objects. Refer to Annotation Automation Object.

dLength is expressed in pixels, not in points. The length is for the whole line, not just from the end point of the ruler to the end point of the gauge - it is from one end of the gauge to the other end of the gauge.

Required DLLs and Libraries

LTANN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Windows 2000 / XP/Vista.

Functions:	L_AnnSetGaugeLength, L_AnnSetBitmapDpiX, L_AnnGetBitmapDpiX, L_AnnGetBitmapDpiY, L_AnnSetBitmapDpiY, L_AnnSetUnit, L_AnnGetUnit, L_AnnGetUnitLen, L_AnnGetDistance, L_AnnGetDistance2, ANNSMARTDISTANCE
Topics:	Annotation Functions: Working with the Toolbar
	Implementing Annotations
	Annotation Objects - Default Values
	Annotation Objects - Automated Features
	Automated User Interface for Annotations
	Implementing an Automated Annotation Program
	Obtaining Annotation Object Information
	Using Rulers in Annotation Objects
	Annotation Features
	Calibrating Annotation Ruler Objects