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WORD Output(lpDestDev, OS_CHORD, 5, lpPoints, lpPPen, lpPBrush, lpDrawMode,
            lpClipRect)
LPPDEVICE lpDestDev;
LPPOINT lpPoints;
LPPPEN lpPPen;
LPPBRUSH lpPBrush;
LPDRAWMODE lpDrawMode;
LPRECT lpClipRect;
 
The OS_CHORD style specifies that the Output function draws an arc and the
chord connecting the endpoints of the arc. Since the resulting figure is
closed, Output fills the figure as well as draws the border. GDI calls this
style when an application calls the Chord function (GDI.348).
 
A graphics driver must support this style if the CC_CHORD value is set in
the dpCurves member of the GDIINFO structure.
 
Parameter   Description
────────────────────────────────────────────────────────────────────────────
 
 
lpDestDev   Points to a PDEVICE or PBITMAP structure specifying the
            destination device or bitmap.
 
lpPoints    Points to an array containing five POINT structures. The
            elements of the array are defined as follows.
 
            Index  Description
            ────────────────────────────────────────────────────────────────
            0      Upper-left corner of the bounding rectangle.
 
            1      Lower-right corner of the bounding rectangle.
 
            2      Starting point for the arc.
 
            3      Ending point for the arc.
 
            4      Start and stop angles (reserved; do not use).
 
lpPPen      Points to a PPEN structure specifying the physical pen to draw
            the border.
 
lpPBrush    Points to a PBRUSH structure specifying the physical brush to
            fill the figure.
 
lpDrawMode  Points to a DRAWMODE structure containing information when
            drawing the border and filling the interior.
 
lpClipRect  Points to a RECT structure containing coordinates for the
            clipping rectangle. If the lpClipRect parameter is NULL, the
            clipping rectangle is the entire display surface.
 
Return Value
 
The return value is 1 if the function draws the arc and chord. Otherwise, it
is zero if the function encounters an unrecoverable error. The return value
is -1 if the function cannot draw the specified arc and chord and wants GDI
to simulate it.
 
Comments
 
Output draws the arc and chord by first filling the interior then drawing
the border.
 
Output draws an arc by drawing a portion of the ellipse contained in the
specified bounding rectangle. The function calculates the endpoints of the
arc using the starting and ending points; each endpoint is the intersection
of the ellipse and a ray drawn from the center of the bounding rectangle
through the specified starting or ending point. Output draws the arc in a
counterclockwise direction, from starting point up to, but not including,
the ending point.
 
See Also
 
Output(OS_ARC), Output(OS_PIE)
 
 
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