Conversion of stream and variant types is often required when using COM and COM + in Delphi.
1
Procedure
Vartostream (
VaR
ASTM: tstream;
VaR
Aovar: olevariant );
2
VaR
3
P: pointer;
4
Begin
5
ASTM:
=
Tmemorystream. Create;
6
ASTM. Position:
=
0
;
7
P:
=
Vararraylock (aovar );
8
(continuous air Interfaces-long and Medium Range,calm) system plan. The ultimate vision of the program is to create a nationwide network that allows communication between vehicles and roadside radios or other vehicles. This work is based on its leading ASTM E2213-03 program.802.11P-----Wireless LAN standard for intelligent traffic its has been promulgated by IEEE in July 2010.The 802.11p will be used in telematics (or dedicated short range communicat
C + + Acquisition timeHeader file Chrono, namespace Std.Now timeStd::chrono::system_clock::now () returns the current time of the system clockClockStd::chrono::system_clock represents the current time of the system, is an unstable clock, and provides a function to convert a point in time to a value of time_t typeStd::chrono::steady_clock represents a stable clock, so-called stability refers to the call now (), whose value is always greater than 1 times.DelayStd::this_thread::sleep_for () and Std
. Remove the half-cycle 9-8ˊ. The two half cycles 8-9 and 9-8ˊ are paired to form a complete cyclic 8-9-8ˊ. Thus, the strain-time record shown in Figure 1 includes three full-cycle 8-9-8ˊ,2-3-2ˊ,5-6-5ˊ and three half-cycle 1-2-4,4-5-7,7-8-10. Figure 1 shows that the strain obtained by the rain flow method is consistent with the stress-strain characteristics of the material. As seen in Figure 1, there are three complete loops, which correspond to the closed loops shown in Figure 2 with three shad
technology.
The Institute of Electrical and Electronic Engineers is the main task in the development of motor electronics industry-related standards, it also set up a number of local area network standards.
American National Standards Institute (ANSI)
American National Standards Institute (ANSI) American Standards Institute was founded in 1918. At that time, many enterprises and professional technical groups in the United States have begun to standardize work, but because there is no co-ordi
Contact Us
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.