virtual L_VOID LBitmapWindow::GetRgnCurveOptions(puFillMode, pdTension = NULL, pnClose = NULL)
Gets the curved regions options set for the class object.
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. |
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.
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.
None.
Win32, x64.
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;
}
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