api development training

One-day Windows API training (44) wsprintf Function Next, we will continue to implement more powerful thread classes. From the above C ++ class, we can see that to use class members in static functions, we need to obtain the this pointer, that is, the this pointer of the class is transmitted through the createthread function, in this way, the parameter lpparameter in the threadproc function is the this poi

Windows API one-day training (69) gettickcount Function The more accurate the time, the better. Sometimes you only need a time. In this way, you can use the time function gettickcount in milliseconds. This function records the time in milliseconds since the system was started. When it exceeds 49.7 days, the value changes from 0, that is, 49.7 days is a cycle. When two function calls are different, the diff

One-day Windows API training (72) GetUserName Function With the enhancement of system security, more and more different accounts are logged on to each system. If you are developing an Internet security software so that different users have different Internet access permissions, You need to identify the current user's account for logon and then assign permissions. When an error occurs, you also need to reco

One-day Windows API training (80) multibytetowidechar Function During the use of software, garbled code is often encountered. Why? In many cases, character sets are different, that is, the same number represents different meanings. In Windows, ANSI and Unicode are used. If the ANSI string is displayed in Unicode mode, garbled characters are displayed. Similarly, Unicode strings cannot be displayed in ANSI f

One-day Windows API training (89) OpenProcess function Over the past year, there have been a lot of rogue software, which has made everyone suffer from such disgusting software. In this environment, many customers need powerful tools to scan and kill such rogue software. What would you do if you were asked to develop a software to scan and kill the virus? Of course, we first traverse all the processes on t

One-day Windows API training (38) setwindowpos Function One day, the user suddenly said to me, can you put this window at the top, it is very inconvenient to operate and open the file. This function requires changing the properties of the window. For example, when you use QQ, there is a function that sets the QQ window to the top, no matter what window you choose, the QQ interface will always be at the top.

Windows API one-day training (63) regopenkeyex and regcreatekeyex Functions Because the computer is often shut down, or applications are often closed, but some parameters need to be saved frequently. For example, when you open a program and set the window size, you want to set the window size to the size of the previous window. In this way, you need to save the size of the window. What about the window siz

Windows API one-day training (84) flushinstructioncache Function General programs are compiled before running, so there are few opportunities to modify commands, but there are a lot of use in the anti-validation solution of the software. After modifying the command, how can I let the CPU execute the new command? In this way, you need to use the flushinstructioncache function to overwrite the data in the ca

Windows API one-day training (90) getglyphoutline Function Because of the differences between Chinese and western cultures, the processing in electronic information is also very different. In English, only 26 letters are needed to display all the articles, in Chinese, more than 2000 basic characters are required. For some characters to be displayed in embedded software, you have to manually construct all t

One-day Windows API training (88) enumprocesses Function What if an error occurs when the software you developed runs on the user? Of course, you want to generate a report for the running environment information in case of an error, and then email it back to view it. Here we will introduce a function that can locate all the processes in the runtime environment and output the information of each process. Of

Debugging is a common task during software development. Program Many problems may occur, but logical problems may also be unfamiliar with the API, or API calls may fail under certain conditions. So what are the causes of these errors? Generally, only the error code is obtained through the getlasterror function. Of course, you can use this error code to find out t

During software development, you often need to maintain the data in the directory. For example, in the credit card system of the Development Bank, because many logs are created every day, a large hard disk occupies a lot of space six months later. At this time, there is a need to regularly delete all LOG data over 6 months. To implement this function, You have to traverse the entire directory and delete the

From the perspective of enterprise-level business practice, 24 hours through 23 hands-on practical cases, the gradual progress of the Android business-level application development points conquer, Based on years of Android (6 complete hardware products and more than 20 application software) development and enterprise-level training experience (more than 150 times

From the perspective of enterprise-level business practice, 24 hours through 23 hands-on practical cases, the gradual progress of the Android business-level application development points conquer, Based on years of Android (6 complete hardware products and more than 20 application software) development and enterprise-level training experience (more than 150 times

Best practices for open api application development and best practices for api application development In the company's internal system, there will be some third-party Data Access scenarios, for example, in Ctrip's app, you can see iron's ticket, you can find the hotel where to go in the Meituan hotel list. This data i

Mini-program development-quickly master the components and API methods, and program development component APIs The applet framework provides developers with a series of components and APIs. The widget mainly completes the view part of the applet, such as text and image display. APIS provide logical functions, such as network requests, data storage, audio/video pl

Php store API secondary development and use example, api Secondary Development This article describes the second API development and usage of the php version. We will share this with you for your reference. The details are as foll

++ and Java Training Content day 1 (core development) 1st courses: hardware abstract layer architecture and driver module development 1.1 meaning and purpose of service and manager 1.2 libhardware and Hal API 1.3 stub Module concept 1.4 Hal stub Analysis and Design (OOAD) 1.5 Hal s

(inch)Char**string_out ($*1_ltype Temp) { if(!$input) {swig_javathrowexception (jenv, Swig_javanullpointerexception,"array null"); return$NULL; } if(JCALL1 (Getarraylength, jenv, $input) = =0) {swig_javathrowexception (jenv, Swig_javaindexoutofboundsexception,"Array must contain at least 1 element"); return$NULL; } $1= temp;}%typemap (Argout)Char**string_out {jstring jnewstring=NULL; if($1) {jnewstring= JCALL1 (Newstringutf, jenv, *$1); } JCALL3 (Setobjectarrayelement, jenv, $input,0, jnewst

UDog, are all developed using Unity3d. Unity3D is not only limited to the gaming industry, but also widely used in VR, engineering simulation, 3D design, and other applications, there are many companies in China that use Unity3D for Virtual Simulation Teaching Platform, real estate 3D presentation, and other projects, for example, many 3D digital real estate display systems of large real estate companies such as Greenland real estate, poly property, China Overseas real estate, and China Merchan