I want to organize by tags, but for the time being, I will create a link collection.

1. Hack Windows (work efficiency, etc.)

1.1. Library installation unnecessary

1.1.1. C#

★ is used at work. (I have modified it a little.)

There is a mixture of things that can be used as they are and introductions of fragmentary technologies.

Posted date	Article link
2020.09.19	C# -Send multibyte string with SendInput
2020.08.29	Pin to quick access
2020.08.29	List the paths of open explorers
2020.08.23	SendInput(Windows API)Keystroke sample by(32/64bit compatible)
2020.08.28	Libraryless Joy Stick(GamePad)Receive input event of(Windows API)
2020.07.31	★Generate Zip files without using Visual Studio or libraries
2020.06.27	★I tried to make a simple Windows icon creation tool
2019.12.22	Display the Form that resides in the notification area and touches the taskbar by force-Supports multiple displays
2019.12.15	C# - Win32API(WinMM)Pick up the microphone input with(32bit) /I tried to implement the fast Fourier transform by hand
2019.12.04	I played with Windows standard voice recognition
2019.11.30	★.zi_And.ex_Drag the extension&I made a tool to rename with Drop
2019.11.28	★Windows resident app(Task tray) -No Form display
2019.11.27	Generate a Form icon in a sloppy way(Windows)
2019.11.24	Windows link file(.lnk)Get linked information from/ Drag&Drop sample
2019.11.23	Clipboard monitoring(Windows API)
2019.11.20	C#From the program made in#Compile and run the source code of
2019.11.10	RC4(Arcfour)To calculate
2019.11.05	Binary file SHA-Calculate 256 (effectively 4 lines)
2019.11.03	ASCII character string ⇔ character code(Hexadecimal)I made a tool to convert and output to the console
2019.10.27	C#Save user settings with
2019.10.14	I rewrote the registry and replaced the keys
2019.10.10	★I made software to automatically enter ID and password on the BASIC authentication screen on Windows 10.
2019.08.25	C#I launched IE with and tried Google search
2019.08.04	C#Monitor / change the conversion mode of IME with

1.1.2. Other than C

Posted date	Article link
2020.01.17	I made a bookmarklet to quickly save the source code on the Qiita article to a file

1.2. Library installation required

1.2.1. C#

Posted date	Article link
2020.06.24	C#/I tried OCR with WinRT
2020.06.18	C#/WinRT -Convert PDF to image and save
2020.02.22	C#From demon cloud(bregonig.dll)Use to process regular expressions
2019.11.17	Take a still image with your PC webcam/ C#(csc.exe)Use WinRT from(Windows 10 environment)

2. Hack Microsoft Office

2.1. Library installation unnecessary

Microsoft Office (Excel, Word, Outlook, PowerPoint, etc.) handled by each is required

2.1.1. C#

Posted date	Article link
2020.09.23	C#Erase all "names" of Excel workbooks with
2020.07.15	Create / retrieve Outlook email C#Try it with-Visual Studio not used-Personal notes
2020.05.25	Excel, Word,Get the full path of the file opened in PowerPoint and enable list display / jump
2019.12.15	C#＋ Excel: Takes away the character string editing ability of the selected auto shape
2019.10.26	C#I wrote a program that searches for a character string in a Word document and replaces it with a serial number

3. Hack Windows-for developers (useful when making tools)

The boundary with 1. is delicate, but research tools and development information are here.

3.1. C#

Posted date	Article link
2020.01.01	I made a tool to get the information of AutomationElement
2019.12.27	Window handle related reverse lookup reference (mainly Win32API)
2019.11.06	I made a tool to check the format of Clipboard
2019.10.24	How to release COM objects- C#(I mean.NET)
2019.10.10	I made a tool to enumerate window components of Windows 10 in two ways
2019.09.19	A memorandum of hooks in Windows
2019.09.18	C#From Windows API(Win32API)A collection of sites that will be helpful when you want to use
2019.08.31	C#Use the ITypeInfo class in to display the function name and parameters of the COM object.
2019.08.28	C#Get the interface name of the COM object obtained at runtime in
2019.08.27	C#I tried to make a COM object browser using PowerShell in
2019.06.20	C#I tried to make an information viewer of the type

3.2. Other than C

Posted date	Article link
2019.08.27	Get a list of COM object members(PowerShell)

4. Analysis / countermeasures for stuck traps

4.1. C # (including Windows API)

Posted date	Article link
2020.10.13	C# -NumericUpDown control is Hexadecimal=When used with true, set the Maximum and Minimum properties to Int32, respectively..With MaxValue.Int32.There is a restriction to make it MinValue, but the display of negative numbers is long type for some reason- Qiita
2020.08.29	C#Dynamic type trap: If you do not specify the type by casting to beans ... Type checking at compile time will be loose & processing at runtime will increase
2020.08.25	C#(.NET Frameworks) -When IntPtr with a value of 0x80000000 or more is cast to uint, an OverflowException occurs even though the value fits in uint, so I analyzed it.
2020.08.22	Send Input overflowing in the streets(Windows API)Make a statement in the source code of the coordinate transformation of
2020.08.09	AllowUserToAddRows DataSource of DataGridView=Is it impossible to add data from the program if it is operated with true?
2019.12.30	A story that fits in with Windows high resolution support
2019.12.14	I investigated the acquisition of coordinates in multi-display (multi-screen)- Windows10
2019.12.02	C# - Windows.Data.Json mystery/Check the contents of winmd with ILSpy
2019.11.15	GraphicsUnit when you want to set Font to Pixel unit.Let's specify Pixel (and re-examine font metrics)
2019.11.01	C# csc.Edit the rsp file and csc.The story that file access rights were troublesome when trying to change the default options of exe(For those who do not use Visual Studio)
2019.10.26	C#Pitfalls of mouse operation with SendInput-64-bit trap

4.2. Other than C

Posted date	Article link
2020.01.24	Precautions when using a microphone camera (video) with getUserMedia in JavaScript and access authority to the device
2019.11.19	What to do if the machine translation of Microsoft Docs is disappointing

5. For beginners

5.1. General

Posted date	Article link
2020.08.11	[Table of Contents] Understand the outline of computers and software from zero knowledge [Under construction]
2019.09.17	I want to make people aware of the importance of keyboard layout in laptops

5.2. C#

Posted date	Article link
2020.10.17	TabControl,TabPage sample code solid writing (without Visual Studio)
2020.10.17	SplitContainer sample code solid writing (without Visual Studio)
2019.11.24	C lying on the net#The main factors when the sample code of
2019.10.23	C#Let's write an example of how to deal with compilation errors
2019.10.04	C language and C#Towards a magical graduation
2019.10.03	C#Handling of character codes in(Windows 10 environment)

6. I played with Code Pen + JavaScript

Posted date	Article link
2020.10.03	HTML&JavaScript - Drag&Explanation and sample (binary viewer) until reading a file with Drop- Qiita
2020.09.27	I tried handwritten number recognition with JavaScript from 0 without library (using MNIST data)
2020.09.26	Machine learning memo-Drag the MNIST data file on your browser&Receive with Drop and display handwritten numbers for the time being
2020.09.13	Fast Fourier transform(FFT)I tried to visualize the butterfly operation of
2020.08.30	Fast Fourier transform(FFT)Understand in a matrix
2020.05.24	I tried drawing a fractal compressed image
2020.01.28	I tried to draw the spectrum of the input voice on the scale
2020.01.24	Color sample(RGB color palette)Tried to make it
2020.01.05	I tried to generate a waveform and make something like a hearing test
2020.01.03	Three.I made a Rubik's cube (modoki) with js
2020.01.03	Steps to resume editing CodePen
2020.01.02	I made Sudoku

7. PDF related

https://qiita.com/search?sort=&q=user%3Akob58im+tag%3Apdf

8. Algorithm

Posted date	Article link
2020.09.27	I tried handwritten number recognition with JavaScript from 0 without library (using MNIST data)
2020.09.13	Fast Fourier transform(FFT)I tried to visualize the butterfly operation of
2020.08.30	Fast Fourier transform(FFT)Understand in a matrix

Articles are getting messy, so make a link collection of your own articles