L_AnnSetDpiX

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnSetDpiX(hObject, dDpiX, uFlags)

HANNOBJECT hObject;	/* handle to the annotation automation object */
L_DOUBLE dDpiX;	/* horizontal DPI value to set */
L_UINT uFlags;	/* reserved for future use */

Sets the horizontal DPI (dots per inch) value that is used to translate user input, such as font size, that is expressed in physical measurements.

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

Parameter	Description
hObject	Handle to the annotation automation object.
dDpiX	The horizontal DPI value to set. Valid values are greater than or equal to 1.
	If you pass 0 or a positive value less than 1, the value will default to 150. If you pass a negative value, the function will return an error.
uFlags	Reserved for future use. You can pass 0.

Returns

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

Comments

The DPI properties apply only to the annotation automation object. Refer to Annotation Automation Object.

Typically, if you are matching annotations to a bitmap, you can use the bitmap handle's XResolution field to set this value.

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.

See Also

Functions:	L_AnnCreate, L_AnnSetAutoContainer, L_AnnGetAutoContainer, L_AnnSetDpiY, L_AnnGetDpiX, L_AnnGetDpiY, L_AnnSetTool, L_AnnGetTool, L_AnnGetUserMode, L_AnnSetUserMode, L_AnnSetUndoDepth, L_AnnUndo, L_AnnCalibrateRuler, L_AnnCalibrateRulerSuccessive
Topics:	Annotation Functions: Working with the Toolbar
	Implementing Annotations
	Automated User Interface for Annotations
	Implementing an Automated Annotation Program
	Altering Annotation Object Settings

Example

For an example, refer to Implementing an Automated Annotation Program. For complete sample code, refer to the ANNOTATE example.