double FileReadDouble	(	int	handle,
		int	size
	)

Reads a double-precision floating point number (double) from the current position of the binary file

Parameters

handle	File descriptor returned by FileOpen()
size	Number of bytes (up to 8 inclusive), that should be read. The corresponding constants are provided: DOUBLE_VALUE = 8, FLOAT_VALUE = 4, so the function can read the whole value of double or float type

Returns

Value of double type

For more details about the error, call GetLastError()