VarNumFromParseNum (Windows Embedded CE 6.0)
1/6/2010
This function converts the parsed number to a number of the VARIANT type.
Syntax
HRESULT VarNumFromParseNum(
NUMPARSE* pnumprs,
unsigned char* rgbDig,
unsigned long dwVtBits,
VARIANT* pvar
);
Parameters
pnumprs
[in] Parsed results.The cDig member of this structure equals the 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 Value
Returns the HRESULT values shown in the following table.
| Value | Description |
|---|---|
S_OK |
Success. |
E_OUTOFMEMORY |
Out of memory. |
DISP_E_OVERFLOW |
The number is too large to be represented in an allowed type. There is no error if precision is lost in the conversion. |
Remarks
Passing invalid (and under some circumstances NULL) pointers to this function causes an unexpected termination of the application.
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 option 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.)
Requirements
| Header | oleauto.h |
| Library | oleaut32.lib |
| Windows Embedded CE | Windows CE 2.0 and later |