Book Image

Delphi GUI Programming with FireMonkey

By : Andrea Magni
4 (1)
Book Image

Delphi GUI Programming with FireMonkey

4 (1)
By: Andrea Magni

Overview of this book

FireMonkey (FMX) is a cross-platform application framework that allows developers to create exciting user interfaces and deliver applications on multiple operating systems (OS). This book will help you learn visual programming with Delphi and FMX. Starting with an overview of the FMX framework, including a general discussion of the underlying philosophy and approach, you’ll then move on to the fundamentals and architectural details of FMX. You’ll also cover a significant comparison between Delphi and the Visual Component Library (VCL). Next, you’ll focus on the main FMX components, data access/data binding, and style concepts, in addition to understanding how to deliver visually responsive UIs. To address modern application development, the book takes you through topics such as animations and effects, and provides you with a general introduction to parallel programming, specifically targeting UI-related aspects, including application responsiveness. Later, you’ll explore the most important cross-platform services in the FMX framework, which are essential for delivering your application on multiple platforms while retaining the single codebase approach. Finally, you’ll learn about FMX’s built-in 3D functionalities. By the end of this book, you’ll be familiar with the FMX framework and be able to build effective cross-platform apps.
Table of Contents (18 chapters)
Section 1: Delphi GUI Programming Frameworks
Section 2: The FMX Framework in Depth
Section 3: Pushing to The Top: Advanced Topics

Learning about copying and pasting graphic content

As we have said, our service supports text and images (and custom formats you may want to register), even though the functionality is wrapped for all platforms but available only on some of them (all but Android, in fact).

This means we can still query for a reference to this service on the Android platform but functionalities will be limited and calling some methods of the interface may result in exceptions or ineffective behavior.

The following code block shows how the CopyGraphic action has been implemented (OnExecute/OnUpdate event handlers):

procedure TMainForm.CopyGraphicActionExecute(Sender: TObject);
LBS: TBitmapSurface;
LBS := TBitmapSurface.Create();

procedure TMainForm.CopyGraphicActionUpdate(Sender: TObject);
{$IFDEF ANDROID} // clipboard does not support images
CopyGraphicAction.Enabled := False;