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LBitmapWindow::GetRgnCurveOptions

Summary

Gets the curved regions options set for the class object.

Syntax

#include "ltwrappr.h"

virtual L_VOID LBitmapWindow::GetRgnCurveOptions(puFillMode, pdTension = NULL, pnClose = NULL)

Parameters

L_UINT * puFillMode

Pointer to a variable to be updated with 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.

L_DOUBLE * pdTension

Pointer to a variable to be updated with the tension value. Possible values range from 0.0 to 1.0. NULL is the default value.

L_INT * pnClose

Pointer to a variable to be updated with 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).

NULL is the default value.

Returns

None.

Required DLLs and Libraries

LTDIS
LTDLG
LTEFX
LTFIL
LTIMG
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.

Platforms

Win32, x64.

Example

L_INT LBitmapWindow__GetRgnCurveOptionsExample(LBitmapWindow & BitmapWindow) 
{ 
   L_UINT uFillMode; 
   L_DOUBLE dTension; 
   L_INT nClose; 
 
   BitmapWindow.GetRgnCurveOptions(&uFillMode, &dTension, &nClose); 
 
   if (uFillMode == L_POLY_ALTERNATE) 
      BitmapWindow.SetRgnCurveOptions (L_POLY_WINDING, dTension, nClose); 
 
   return SUCCESS; 
}