In windows app development, the Observers or DelphiVCL.Application.Observers property indicates the TObservers object added to the TComponent.
Observers is a read-only property that returns the TObservers added to the TComponent, in order to use the notifications provided by the observers either with LiveBindings or for the developers’ own purposes.
Let’s browse all the properties…
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What is the DelphiVCL.Application.OnHint event?How to use the DelphiVCL.Application.OnHint event properly?How to examine the properties and methods of the DelphiVCL.Application.OnHint?How can I get started with Python GUI building with DelphiVCL?Browse all…
During Windows development, the OnIdle or DelphiVCL.Application.OnIdle occurs when an application becomes idle.
Write an OnIdle event handler to perform special processing when an application is idle. An application is idle when it is not processing code. For example, an…
The NormalizeAllTopMosts or DelphiVCL.Application.NormalizeAllTopMosts method is used in development on Windows to make forms that have been designated as topmost forms (their FormStyle is fsStayOnTop) behave as if they were not topmost forms.
How to use the DelphiVCL.Application.NormalizeTopMosts Method properly?
Use NormalizeTopMosts to allow a message box or dialog box that is displayed…
What is the DelphiVCL.Application.OnHelp event?
The OnHelp or DelphiVCL.Application.OnHelp occurs when the application receives a request for Help. You can examine and set it in the IDE software.
How to use the DelphiVCL.Application.OnHelp event properly?
Write an…
A built-in function object is a wrapper around a C function. Examples of built-in functions are len() and math.sin() (math is a standard built-in module). The number and type of the arguments are determined by the C function.
You can browse all the built-in function…
The OnException or DelphiVCL.Application.OnException event occurs when an unhandled exception occurs in the application. This is a fundamental error event to understand when you develop Windows software.
How is the DelphiVCL.Application.OnException event used?
Use OnException to change the default behavior that occurs when an exception (a critical error) is not handled by regular…
What is an OnGetActiveFormHandle Event in DelphiVCL.Application?
December 26, 2021
OnGetActiveFormHandle or DelphiVCL.Application.OnGetActiveFormHandle is the event triggered when reading the value of the ActiveFormHandle property.
Let’s take a look at all of DelphiVCL.Application.OnGetActiveFormHandle properties, methods, and built-in…
DelphiVCL.BitBtn is a push button control that can include a bitmap on its face. It’s an alternative to the regular button control which can’t directly use graphics on it.
Bitmap buttons exhibit the same behavior as button controls. We use them to initiate…
The Alignment or TAlignment property is used to specify how text is aligned within a control. The default value of the Alignment property is taLeftJustify.
These are the possible values of Alignment:
Value
Meaning
taLeftJustify
Align text on the left side of the header section.
taCenter
Center text in the header section.
taRightJustify
Align text on the…
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