virtual L_VOID LBitmapWindow::SetRgnCurveOptions(uFillMode, dTension, nClose)
Sets the curved regions options for the class object.
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. |
Determines the straightness of the curve lines that connect the points of the curved region. Valid values range from 0.0 to 1.0.
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). |
None.
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 wont be set.
Refer to the CURVE structure for more information on the options mentioned above.
Win32, x64.
For an example, refer to LBitmapWindow::GetRgnCurveOptions.
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