gclip.h

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// $Id: gclip.h 751 2006-03-31 15:43:49Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
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=================================XARAHEADEREND============================
 */
// Gavin's path clipping code

//
// GClip.h
//

/************************************************************************************************

INT32 ClipPathToPath( 
        PPOINT  SPoints,
        PBYTE   STypes,
        UINT32  SLength,
        UINT32  SFlatness,
        PPOINT  CPoints,
        PBYTE   CTypes,
        UINT32  CLength,
        UINT32  CFlatness,
        UINT32  Flags,
        UINT32  Tolerance,
        PPOINT  OPoints,
        PBYTE   OTypes,
        UINT32  OMaxLength
) ;

SPoints,STypes,SLength  - Source path
SFlatness               - Source path flatness
CPoints,CTypes,CLength  - Clip path
CFlatness               - Clip path flatness
Flags                   - Flags
    CLIPPING_STYLE      - Clip style
        001                 -     Source AND NOT Clip
        010                 -     Source AND     Clip (Intersection)
        011                 -     Source
        100                 - NOT Source AND     Clip
        101                 -     Source EOR     Clip
        110                 -                    Clip
        111                 -     Source OR      Clip (Union)
                        - If source stroked then
        000                 - Source AND     Clip (Intersection)
        ???                 - Source AND NOT Clip
    CLIPPING_SOURCE_WINDING - Source path winding.
    CLIPPING_CLIP_WINDING   - Clip path winding.
    CLIPPING_IS_STROKED - Source is stroked, not filled
    CLIPPING_IS_CLOSED  - Source path is to be closed (only applicable is stroked).
Tolerance               - Tolerance - two points closer than this value are considered to be
                                      the same point.
OPoints,OTypes          - Output path
OMaxLength              - Maximum length of output path.

Returns the length of the path, or an error code if an error occurs. Possible error codes are
        -1 - Insufficient memory to create the path. Increase buffer sizes and try again.
        -2 - new failed.

************************************************************************************************/

INT32 ClipPathToPath( 
        PPOINT  SPoints,
        PBYTE   STypes,
        UINT32  SLength,
//      UINT32  SFlatness,
        double  SFlatness,
        PPOINT  CPoints,
        PBYTE   CTypes,
        UINT32  CLength,
//      UINT32  CFlatness,
        double  CFlatness,
        UINT32  Flags,
        UINT32  Tolerance,
        PPOINT  OPoints,
        PBYTE   OTypes,
        UINT32  OMaxLength
    ) ;

---