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VARSTRING (Windows CE 5.0)

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This structure is used for returning variably sized strings. It is used both by the line device class and the phone device class.

typedef struct varstring_tag {DWORD dwTotalSize;DWORD dwNeededSize;DWORD dwUsedSize;DWORD dwStringFormat;DWORD dwStringSize;DWORD dwStringOffset;} VARSTRING, FAR* LPVARSTRING;

Members

  • dwTotalSize
    Total size, in bytes, allocated to this data structure.
  • dwNeededSize**
    Size, in bytes, for this data structure that is needed to hold all the returned data.
  • dwUsedSize**
    Size, in bytes, of the portion of this data structure that contains useful data.
  • dwStringFormat**
    Value that specifies the format of the string. This member uses STRINGFORMAT.
  • dwStringSize
    Size, in bytes, of the variably sized device field that contains the string data.
  • dwStringOffset**
    Offset, in bytes, from the beginning of this data structure.

Remarks

No extensibility.

If a string cannot be returned in a variable structure, the dwStringSize and dwStringOffset members are set in one of these ways:

  • dwStringSize and dwStringOffset members are both set to zero.
  • dwStringOffset is nonzero and dwStringSize is zero.
  • dwStringOffset is nonzero, dwStringSize is 1, and the byte at the given offset is zero.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Tapi.h.

See Also

lineConfigDialogEdit | lineGetDevConfig | lineGetID | lineSetDevConfig | LINECALLPARAMS

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