We just learned from the previous PyCon 2020 videos that you can use Python to teach computers how to write poetry with style so it is not really surprising to see many other interesting usages of this programming language. In this video presented by Lukasz Langa, we will discover how Python can help musicians to play musical instruments! Yes, you read that right! Python can also be used to…
DelphiVCL.Memo is a wrapper for a Windows multiline edit control.
We use Memo to put a standard Windows multiline edit control on a form. Multiline edit boxes allow the user to enter more than one line of text. They are appropriate for representing lengthy…
DelphiVCL.Button is a push-button control.
Use Button to put a standard push button on a form. Button introduces several properties to control its behavior in a dialog-box setting. To initiate actions, users choose button controls
To use a button that…
DelphiVCL.RadioGroup represents a group of radio buttons that function together.
A RadioGroup object is a special group box that contains only radio buttons. Radio buttons that are placed directly in the same control component are said to be “grouped.” When the user checks a radio button, all other radio buttons in its group become unchecked. Hence, two radio buttons on a form…
DelphiVCL.ComboBox combines an edit box with a scrollable list. A ComboBox component is an edit box with a scrollable drop-down list attached to it. Users can select an item from the list or type directly into the edit box.
Note: The width of the button in a TComboBox…
ListBox displays a collection of items in a scrollable list. We use ListBox to display a scrollable list of items that users can select, add, or delete. ListBox is a wrapper for the Windows listbox control.
We can browse all the properties, methods, and built-in…
Rect indicates the portion of the list view’s client area covered by the work area.
Set Rect to specify the sphere of influence of a work area. Rect is the bounding rectangle of a portion of the list view’s client area. If Rect specifies a region larger than the list view’s client area, then the list view introduces scroll bars to support the logical size specified by…
CheckBox represents a check box that can be on (checked) or off (unchecked).
A CheckBox component presents an option for the user. The user can check the box to select the option, or uncheck it to deselect the option.
The Caption property can be used to define…
Learn Python With The Hitchhiker's Guide to CLIs in Python by Vinayak Mehta (PyCon 2020) Video
maio 3, 2021
Here comes another interesting talk from the recently concluded PyCon 2020. In this video presented by Vinayak Mehta, we will learn more about Command-line applications and their interesting history as well as how can we create them using various Python packages. We all know…
DelphiVCL.Edit or TEdit is a wrapper for a Windows single-line edit control.
We can use an Edit object to put a standard Windows edit control on a form. Edit controls are used to retrieve text that users type. Edit controls can also display text to the user.
When only displaying text to the user, choose an edit control to allow users to select text and copy it to the Clipboard.
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