StartMagGlass method (ILEADRasterView)

Syntax	short StartMagGlass (float fWidth, float fHeight, short nZoom, OLE_COLOR clrPen, OLE_COLOR clrBack, boolean bEllipse, float fBorderSize, boolean b3D, CrosshairConstants Crosshair, boolean bIgnoreRgn, boolean bCenter);
Overview	Refer to Using the Magnifying Glass

Remarks

Starts the Magnify Glass procedure.

The appearance of the magnifying glass depends on the values of bEllipse, clrPen, b3D and fBorderSize. This can be seen in the table below:

bEllipse	b3D	fBorderSize	ClrPen	Result
TRUE	Ignored	Valid	Valid	An elliptical magnifying glass of border size fBorderSize and border color clrPen.
FALSE	FALSE	Valid	Valid	A rectangular magnifying glass with a flat border of width fBorderSize and border color clrPen.
FALSE	TRUE	Ignored	Ignored	A rectangular magnifying glass with a 3D border having a set width and color.

The following properties can be used to control the painting options for the magnifying glass:

The cursor for the magnifying glass can have one of the following default shapes:

When bEllipse = TRUE, the default cursor will be:

$image\MagGls.gif$

When bEllipse = FALSE, the default cursor will be:

$image\MagGls2.gif$

A custom shape can be used by setting the following properties:

PanWinPointer = 99 ' custom
PanWinCursor = Your custom cursor image

Note: To make use of other shapes of the Magnifying Glass use the UpdateMagGlassShape method.

Elements:	StopMagGlass method , UpdateMagGlassShape method
Topics:	Raster Images: Displaying Images
	Using Color Values in LEADTOOLS