LBitmapWindow::SetRgnCurveOptions

#include "ltwrappr.h"

virtual L_VOID LBitmapWindow::SetRgnCurveOptions(uFillMode, dTension, nClose)

L_UINT uFillMode;	/* filling mode */
L_DOUBLE dTension;	/* tension value */
L_INT nClose;	/* value that specifies how the curve is closed */

Sets the curved region’s options for the class object.

Parameter	Description
uFillMode	The filling mode. Possible values are:
	Value		Meaning
	L_POLY_WINDING	[0] All pixels that are inside the resulting exterior lines are in the region.
	L_POLY_ALTERNATE	[1] The region includes the area between odd-numbered and even-numbered polygon sides on each scan line.
dTension	Determines the straightness of the curve lines that connect the points of the curved region. Valid values range from 0.0 to 1.0.
nClose	A value that specifies how the curve is closed. Possible values are:
	Value		Meaning
	CURVE_NO_CLOSE	[0x0] For n points, draw (n – 3) segments. For example, for points {P0, P1, P2, P3, P4}, draw segments P1P2 and P2P3.
	CURVE_CLOSE	[0x1] For n points draw (n) segments. For example, for points {P0, P1, P2, P3, P4}, draw segments P0P1, P1P2, P2P3, P3P4, P4P0.
	CURVE_PARTIAL_CLOSE	[0x2] For n points draw (n – 1) segments. For example, for points {P0, P1, P2, P3, P4}, draw segments P0P1, P1P2, P2P3, P3P4 (but not P4P0).

Returns

None.

Comments

Use this function to specify the options of a curved region prior to drawing it. If an invalid value is passed for a parameter, it won’t be set.

Refer to the CURVE structure for more information on the options mentioned above.

Required DLLs and Libraries

LTDIS
LTDLG
LTEFX
LTFIL
LTIMG
LTISI
LTSCR
LTTWN

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