On Mar 17, 10:59 pm, [EMAIL PROTECTED] wrote:
> You can also do it with ctypes only; too bad it's not really well
> documented. c_float is a type of a floating point number and it has *
> operator defined, so that c_float*4 is a type of a 4-element array of
> those numbers. So if you want to construct an array of floats from a
> list of floats, you can do it like this:
>
> from ctypes import c_float
>
> x = [1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9]
> float_array_type = c_float*len(x)
> float_array = float_array_type(*x)
> print float_array
Is there has any difference between the following arrays ？
Buf0=(c_float* 9)(57,57,57,57,57,5,5,5,5)
Buf0=array('f', [57,57,57,57,57,5,5,5,5])
function called like this in python:
ret= SetAnalog(9,Buf0)
function prototype in C like this
int SetAnalog(UINT uChannel,float* pBuf)
{
.......
}
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