How Delphi!

Tag: system

  • How can I simulate KeyDown event in Delphi

    To simulate a KeyDown event in Delphi, you can use the KeyDown method of the TWinControl class. This method takes a key code as an argument and simulates pressing the key. Here is an example of how to use the KeyDown method to simulate pressing the “A” key: procedure TForm1.Button1Click(Sender: TObject); begin Form1.KeyDown(VK_A); end; This…

  • How can I convert long filename to DOS filename in Delphi

    To convert a long filename to a DOS filename (also known as an 8.3 filename) in Delphi, you can use the GetShortPathName function from the Windows API. This function takes a long filename as input and returns the corresponding short (8.3) filename. Here is an example of how to use the GetShortPathName function to convert…

  • How can I use named pipes in Delphi

    In Delphi, you can use named pipes to communicate between processes on the same computer or between processes on different computers across a network. To create a named pipe in Delphi, you can use the CreateNamedPipe function from the Windows API. Here is an example of how to use this function to create a named…

  • How can I create TTreeView in runtime in Delphi

    To create a TTreeView component in Delphi at runtime, you can use the TTreeView class and the Create method of the component’s parent container. Here is an example of how you might create a TTreeView component at runtime and add it to a form: var TreeView1: TTreeView; begin TreeView1 := TTreeView.Create(Form1); TreeView1.Parent := Form1; TreeView1.Align…

  • How do I get application info in Delphi

    To get information about the currently running application in Delphi, you can use the ParamStr, ExeName, and GetModuleFileName functions from the System.SysUtils unit of the Delphi RTL. These functions provide an easy way to access various details about the application, such as the command line arguments, executable name, and file path. Here is an example…

  • How can I do service application in Delphi

    To create a service application in Delphi, you can use the TService component from the Vcl.SvcMgr unit. A service application is a special type of program that runs in the background and performs tasks without user interaction. Here is a general outline of the steps you can follow to create a service application in Delphi:…

  • How do I make process watcher in Delphi

    To implement a process watcher in Delphi, you will need to use the TProcess class, which is part of the Classes unit. This class provides methods and properties that allow you to create, manage, and monitor the execution of external processes. Here is an example of how you might use the TProcess class to implement…