VarNumFromParseNum

This function converts the parsed number to a number of the VARIANT type.

HRESULT VarNumFromParseNum( 
  NUMPARSE* pnumprs, 
  unsigned char* rgbDig, 
  unsigned long dwVtBits, 
  VARIANT* pvar 
); 

Parameters

• pnumprs
  [in] Parsed results. cDig = size of rgbDig

• rgbDig
  [in] Contains the values of the digits. The cDig member of NUMPARSE contains the number of digits.

• dwVtBits
  [in] Contains one bit set for each type that is acceptable as a return value (in many cases, just one bit).

  The following VarNumFromParseNum flags indicate acceptable result types:

  Flag	Description
  VTBIT_I1	Type can be CHAR
  VTBIT_UI1	Type can be unsigned char
  VTBIT_I2	Type can be short
  VTBIT_UI2	Type can be USHORT
  VTBIT_I4	Type can be long
  VTBIT_UI4	Type can be ULONG
  VTBIT_R4	Type can be float
  VTBIT_R8	Type can be double
  VTBIT_CY	Type can be CURRENCY
  VTBIT_DECIMAL	Type can be DECIMAL

• pvar
  [out] Pointer to the result variant.

Return Values

The following table shows the HRESULT values that can be returned by this function.

For rounding decimal numbers, the digit array must be at least one digit longer than the maximum required for data types. The maximum number of digits required for the DECIMAL data type is 29, so the digit array must have room for 30 digits. There must also be enough digits to accept the number in octal, if that parsing options is selected. (Hexadecimal and octal numbers are limited by VarNumFromParseNum to the magnitude of an unsigned long [32 bits], so they need 11 octal digits.)

Remarks

Passing invalid (and under some circumstances NULL) pointers to this function causes an unexpected termination of the application.

Requirements

OS Versions: Windows CE 2.0 and later.
Header: Oleauto.h.
Link Library: Oleaut32.lib.

See Also

VARIANT

Last updated on Wednesday, April 13, 2005

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