GpCnvStrToFlt

$image\BLTLRGSQ.gif$ Boards that Support the Function $image\SETUP.gif$ $image\SANBTN.gif$

$image\head10.gif$ Operation ASCII characters given to it is changed into the Float value (In VB, Single value).

$image\head10.gif$ Format

(VB.NET)

Dim Ret As Integer

Dim Str As String

Dim FltData As Single

Ret = GpCnvStrToFlt(Str, FltData)

(C)

DWORD Ret;

char *Str;

float FltData;

Ret = GpCnvStrToFlt(Str, &FltData);

(C#)

uint Ret;

string Str

float FltData;

Ret = gpib.CnvStrToFlt(Str, out FltData);

(Python)

Ret = ctypes.c_ulong()

Str = ctypes.create_string_buffer(xxxx) # (xxxx is the string length)

FltData = ctypes.c_float()

Ret.value = GpibPy.GpCnvStrToFlt(Str, ctypes.byref(FltData))

$image\head10.gif$ Mode Master mode / Slave mode

$image\head10.gif$ Parameters Str : A string to change.

Characters to change into the Float value (In VB, Single value) is specified. There is no problem even if a header is contained in this characters. And, a capital letter, small letter is judged as the same one character.

FltData : Changed Float value (In VB, Single value, return value)

Ret : Return value

0 : Normal completion

255 : Illegal call

(See "Return Values" for details.)

$image\head10.gif$ Notes 1 This function does a change on the following condition.

When there is [<Header>+<The characters which shows numerical value>] or [< The characters which shows numerical value>]

*Refer to the complement of GpCnvStrToDbl() for the details of the condition that it faces in the data block.

2 This function can be used even if it doesn't call GpIni().

3 The condition of 1. is applicable when it is removed when a header and so on is set up by the GpCnvSettings function.