I wrote a function using peekmessage to peek the mouseup message, but I don't know why sometimes I can't peek the mouseup message (only one customer's machine has this problem, other customers' machin...
[i=s]This post was last edited by xiyue521 on 2021-7-19 01:36[/i]1. Console and custom commands:In the HelloWorld process , I found that I can get the commands that can be typed by typing help in the ...
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
0 Introduction
With the rapid development of modern power electronics technology, various power electronic devices have been widely used in various fields such as power systems, industry, an...[Details]
Globally, the market for airbags and other restraint systems consists of different geographical regions, each with its own characteristics and needs. North America first introduced airbags in mass-...[Details]
1. Introduction
Industrial fieldbus technology is one of the technologies that has received the most attention in the automation industry in recent years, and it has brought a qualitative leap...[Details]
Typically, buck regulators are designed for continuous mode operation, which simplifies output voltage calculations and system design. However, if the system is non-synchronous and required to oper...[Details]
The physical interference of dc/dc switching power converters is well known unless the system and circuit diagram are carefully designed. These converters can inject unwanted charge into the electr...[Details]
Central topics:
Six basic principles of automotive power supply design
Practical applications and power requirements
Solution:
Design heat sink based on minimum efficien...[Details]
White LED energy-saving lamps are now widely used in handheld devices (such as mobile phones) as backlights for color LCD screens and keyboard lights. Colored LED energy-saving lamps are good indic...[Details]
The switched reluctance power generation system consists of a doubly salient reluctance motor, a bidirectional power converter, a rotor position detector (or indirect position detector) and a contr...[Details]
With the development of social economy and the continuous increase of electrical equipment, various industries have greater and greater requirements for the capacity of switching power supply modul...[Details]
The history of DVR technology development can be simply summarized as a process from single-channel to multi-channel, with increasing integration and decreasing cost per channel. Chip technology pl...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1 Introduction
Fingerprints refer to the uneven lines on the front of the skin at the end of the finger. Although fingerprints are only a small part of human skin, they contain a lot of inform...[Details]
DIY/Open Source Hardware
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