// SHARED.IDH: shared constructs between vsshell.idl and textmgr.idl

#ifndef __SHARED_IDH
#define __SHARED_IDH

cpp_quote("#ifndef TEXTSPAN_DEFINED")
cpp_quote("#define TEXTSPAN_DEFINED")

typedef long ViewCol;       // a view column; may include virtual space
typedef long CharIndex;     // an offset into a buffer line; never includes virtual space
typedef __int64 TEXTADDR;   // Raw text address type.

//
// The line and index are in this order so that they can be unioned with TEXTADDR
// to get composite text addresses that can be directly compared. They aren't defined 
// as the unions here in order to avoid MIDL/marshalling problems.
//
// See TextSpan.h for C++ classes
//

struct _TextAddress
{
    CharIndex   index;
    long        line;
};
typedef struct _TextAddress TextAddress;

struct _TextSpan
{
    CharIndex   iStartIndex;	// starting character index within the line (must be <= length of line)
    long        iStartLine;	    // starting line
    CharIndex   iEndIndex;	    // ending character index within the line (must be <= length of line)
    long        iEndLine;		// ending line
};
typedef struct _TextSpan TextSpan;

cpp_quote("#endif // TEXTSPAN_DEFINED")

#endif // __SHARED_IDH