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WinEllipse |
Function (ROM Call 0xF) |
Draws an ellipse to a window.
WinEllipse draws an ellipse with centre at (x, y) and with
semiaxes a and b to the window pointed to by w. The coordinates
are relative to the topleft
corner of the window. The ellipse will be clipped at the boundaries of the clipping
area of the window. The interior of the ellipse remains intact (no fill). The ellipse
will be drawn using the current window attribute (set using WinFill).
Supported attributes are:
A_NORMAL | Draw a elipse |
A_REVERSE | Erase a ellipse |
A_XOR | XORs a ellipse into the destination |
Note: Set a=b to draw a circle.
Uses: DrawClipEllipse, PortRestore, ROM Call 0x413
Used by: cmd_circle, cmd_pxlcircle, GD_Circle