Dimensional Data

Launch the License Manager from the bin folder (by default “C:Program Files (x86)EmbarcaderoStudio21.0binLicenseManager.exe”) and delete any trial or beta (Test Field) license that you can find. Check it under “License Details” in the center column. Under your Control Panel’s Program and Features Add/Remove Program uninstall the following entries: RAD Studio 10.4 version 21.0 Please follow these instructions to remove any leftover files:     If Windows 64-bit, remove the C:Program Files (x86)EmbarcaderoStudio21.0 directory (or the custom folder you had used).    Remove the C:UsersPublicDocumentsEmbarcaderoStudio21.0 directory    Remove the C:ProgramDataEmbarcaderoStudio21.0 directory.    Remove the %APPDATA%EmbarcaderoBDS21.0 directory.    Remove the HKEY_CURRENT_USERSOFTWAREEmbarcaderoBDS21.0 registry key    If Windows 64-bit, remove the HKEY_LOCAL_MACHINESOFTWAREWow6432NodeEmbarcaderoBDS21.0    If Windows 64-bit, remove the following files from C:WindowsSysWOW64:        BDEAdmin.*        CC32*.DLL        Midas.*        Xerces*.DLL Field testers should also do the following (and others may want to as well):     Delete the Godzilla license from License manager before uninstalling it or during the installation of RAD Studio 10.4 Sydney If you had problems in the second step (uninstalling from Windows Control Panel), try this Microsoft tool to solve un-installation problems: http://go.microsoft.com/?linkid=9779673

Earlier we learned how to create a Python type using Delphi classes. How about creating a Python type with some containers or collections capabilities in Delphi and accessing its elements? Python4Delphi PyObject contains Type Services routines e.g Basic, Number, Sequence, Mapping which can be overridden with our custom Python Types Delphi classes. This post helps to do that. Python4Delphi Demo27 Sample App shows how to create a Module, Python type, Import the module, and Python Type in a python script, create a sequence type object and access some of the service routines like length, indexing, etc. You can find the Demo27 source on GitHub. Prerequisites: Download and install the latest Python for your platform. Follow the Python4Delphi installation instructions mentioned here. Alternatively, you can check out this video Getting started with Python4Delphi. Components used in Python4Delphi Demo27 Sample App: TPythonEngine: A collection of relatively low-level routines for communicating with Python, creating Python types in Delphi, etc. It’s a singleton class. TPythonGUIInputOutput: Inherited from TPythonInputOutput (which works as a console for python outputs) Using this component Output property you can associate the Memo component to show the Output. TPythonModule: It’s inherited from TMethodsContainer class allows creating modules by providing a name. You can use routines AddMethod, AddMethodWithKW, AddDelphiMethod, AddDelphiMethodWithKeywords to add a method which should be type compatible with this routine parameter. You can create events using the Events property. TPythonType: This component helps to create a new python type in Delphi which is inherited from the hierarchy of classes (set of APIs to create, manage methods, and members). TMemo: A multiline text editing control, providing text scrolling. The text in the memo control can be edited as a whole or line by line. You can find the Python4Delphi Demo27 sample project from the extracted repository ..Python4DelphiDemosDemo27.dproj. Open this project in RAD Studio 10.4.1 and run the application. Implementation Details: PythonEngine1 provides the connection to Python or rather the Python API. This project uses Python3.9 which can be seen in TPythonEngine DllName property. PythonGUIInputOutput1 provides a conduit for routing input and output between the Graphical User Interface (GUI) and the currentlyexecuting Python script. PythonModule1 with a Module name test is created. In this sample, Created a Delphi class(TMySeq) implementing a new Python type. It is derived from TPyObject. It overrides some Mapping services virtual methods such as MpLength, MpSubscript. function TMySeq.MpLength: NativeInt; begin Result := 10; end; function TMySeq.MpSubscript(obj: PPyObject): PPyObject; begin Result := obj; GetPythonEngine.Py_XINCREF(obj); end; function TMySeq.MpLength: NativeInt; begin   Result := 10; end;   function TMySeq.MpSubscript(obj: PPyObject): PPyObject; begin   Result := obj;   GetPythonEngine.Py_XINCREF(obj); end; During PythonType1 initialization assign the property PyObjectClass with the class TMySeq. procedure TForm1.PythonType1Initialization(Sender: TObject); begin with Sender as TPythonType do PyObjectClass := TMySeq; end; procedure TForm1.PythonType1Initialization(Sender: TObject); begin   with Sender as TPythonType do     PyObjectClass := TMySeq; end; On Clicking Execute Button the below code is executed. procedure TForm1.Button1Click(Sender: TObject); begin PythonEngine1.ExecStrings(Memo2.Lines); end; procedure TForm1.Button1Click(Sender: TObject); begin   PythonEngine1.ExecStrings(Memo2.Lines); end; Which will execute the python script mentioned below. import test S=test.CreateMySeq() print (S) print (len(S)) print (S[1]) print (S[1,2]) print (S[1:2]) print (S[1:20:2]) print (S[…]) print (S[1,4,5:8, 10:20:2, …]) import test S=test.CreateMySeq() print (S) print (len(S)) print (S[1]) print (S[1,2]) print (S[1:2]) print (S[1:20:2]) print (S[…]) print (S[1,4,5:8, 10:20:2, …]) Note. CreateMySeq in the above script is created automatically by Python4Delphi when the property GenerateCreateFunction of TPythonType1(MySeq) is true. Python4Delphi Demo27

import spam   class MyPoint(spam.Point):   def Foo(Self, v):     Self.OffsetBy(v, v)   # old way to create a type instance p = spam.CreatePoint(2, 5) print (p, type(p)) p.OffsetBy( 3, 3 ) print (p.x, p.y) print (“Name =”, p.Name) p.Name = ‘Hello world!’ print (“Name =”, p.Name)   # new way to create a type instance p = spam.Point(2, 5) # no need to use CreateXXX anymore print (p, type(p)) p.OffsetBy( 3, 3 ) print (p.x, p.y)   # create a subtype instance p = MyPoint(2, 5) print (p, type(p)) p.OffsetBy( 3, 3 ) print (p.x, p.y) p.Foo( 4 ) print (p.x, p.y) print (dir(spam)) print (spam.Point) print (“p = “, p, ”  –> “,) if type(p) is spam.Point:   print (“p is a Point”) else:   print (“p is not a point”) p = 2 print (“p = “, p, ”  –> “,) if type(p) is spam.Point:   print (“p is a Point”) else:   print (“p is not a point”) p = spam.CreatePoint(2, 5) try:   print (“raising an error of class EBadPoint”)   p.RaiseError() # it will raise spam.EBadPoint except spam.PointError as what: # this shows you that you can intercept a parent class   print (“Caught an error derived from PointError”)   print (“Error class = “, what.__class__, ”     a =”, what.a, ”   b =”, what.b, ”   c =”, what.c)   # You can raise errors from a Python script too! print (“——————————————————————“) print (“Errors in a Python script”) try:   raise spam.EBadPoint(“this is a test!”) except:   pass   try:   err = spam.EBadPoint()   err.a = 1   err.b = 2   err.c = 3   raise err except spam.PointError as what: # this shows you that you can intercept a parent class   print (“Caught an error derived from PointError”)   print (“Error class = “, what.__class__, ”     a =”, what.a, ”   b =”, what.b, ”   c =”, what.c)   if p == spam.CreatePoint(2, 5):   print (“Equal”) else:   print (“Not equal”)

In this post, you will discover two different demo application, the first one shows you how to add sliding tabs to an application through the use of multiple tabs with custom settings, next and back buttons, and gesture support. The second sample shows you how to implement a master-detail interface and display the Multiview control as a slide-in drawer, popover menu, docked panel, and more. What can you learn? Tab Control Input Form Creation Gestures Animation and managing the form with custom functions You can get these demo application from GetIt! Be sure to check out more sample applications in GetIt here!

Many know how to use BookMark in your code editor using the RAD Studio IDE. You can mark a location in your code with a bookmark and jump directly to it from anywhere in the file. Bookmarks are preserved when you save the file and available when you reopen the file in the Code Editor. These existing IDE Bookmark features can be replaced with a flexible IDE Plugin Bookmarks 1.6.2. This post will help to understand more about this plugin. This is applicable for Delphi/C++ Builder. Overview of the BookMark1.6.2 As we know existing IDE Code editor has a bookmark feature, where a user can book mark up to 10 bookmarks and easily navigate to the code. This same feature is Replaced with an elegant Bookmark Icon and with some more shortcuts like auto numbering the Bookmark by short cut key (ctrl+B). Jump between the markers quickly by pressing (ctrl+ Alt+ Left or Right Arrow) keys. Never overwrite an existing bookmark accidentally. How to install: You can easily install this IDE Plugin from GetIt Package Manager. The steps are as follows. Navigate In RAD Studio IDE->Tools->GetIt Package Manager->select IDE Plugins in Categories-> BookMarks 1.6.2 by Embercadero Technologies and click Install Button. Read the license and Click Agree All. An Information dialog saying ‘Requires a restart of RAD studio at the end of the process. Do you want to proceed? click yes and continue. It will download the plugin and installs it. Once installed Click Restart now. BookMarks1.6.2 How to use: Open some projects in the IDE, place the cursor in some lines, and press Ctrl+B. A Bookmark Icon Popped with a Number and placed a marker. Like this, you can create 10 bookmarks. Beyond 10 Bookmarks it is marked as # instead of a number. You can press Ctrl + 1, Navigate to the first bookmark, press Ctrl + 2, and so on. For the 10th Bookmark, it is represented as 0 and the shortcut key is Ctrl+0. Beyond 10 Bookmarks, it can be marked as #. Jump between the BookMarks quickly with Ctrl+Alt+Left or Right Arrow. You can view/add/clear the bookmarks by clicking Menu View->Editor->BookMarks. View Bookmarks Be sure to check out all the available sample applications here! Find out more information about the Bookmarks plugin in Embarcadero GetIt.