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Requirements for Multi-Device Applications

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Go Up to Developing Multi-Device Applications


What Multi-Device Means

You can use RAD Studio to build multi-device applications that will run on the remote target machine that you have activated for the application, such as OS X, or a PC running Win64 OS.

  • Operating-System Calls Must Be Native to the Target System: The first requirement is that a multi-device application cannot make any API calls that are specific to an operating system that is not present on the target platform. For example, you cannot make Windows API calls in an application targeted for OS X.
  • You Can Use the RTL on Any Supported Platform: The RAD Studio run-time library (RTL) has been modified so that in most cases you can use the same RTL calls in all of your multi-device applications.

You Need to Connect to the Platform Assistant Server When You Create a Connection Profile

To start developing a multi-device application*, you need to create a connection profile that provides the settings to connect to an instance of the Platform Assistant server running on either the target platform for a project or an intermediate platform that supports the target platform. To create a connection profile, the IDE needs to access the target machine, typically over a local area network.

* This requirement pertains only to platforms other than Android (that is, OS X, iOS, or 64-bit Windows (from a 32-bit development system)).

Note: You also need to be connected to the Platform Assistant server in order to:
  • Run and debug applications remotely on platforms other than Android.
  • Deploy applications for platforms other than Android.

For more information, see:

Specify the Target Platform in the Project Manager

For every project in a multi-device application, the Project Manager contains a Target Platforms node:

Target Platforms Node

Double-click your chosen target platform in the Target Platforms node to specify the target of your multi-device application. The Target Platforms node is not present for legacy projects or for new native Win32 projects that are not built explicitly for a cross-platform or multi-device target.

You can add target platforms to an application by right-clicking the Target Platforms node and selecting Add Platform from the context menu.

You can also assign a connection profile and an SDK to an application by right-clicking the Target Platforms node and selecting the context menu command Platform Properties. A connection profile is required for 64-bit Windows (from a 32-bit development system), OS X, and iOS applications. Adding an SDK is required for multi-device applications for OS X, and for multi-device applications for the iOS device and simulator, and Android.

Target Platform Requirements

Xcode and Xcode Command Line Tools Required for OS X and iOS Development

In order to build OS X projects and iOS projects, RAD Studio must pull some development files from the Mac into a local SDK. These files are typically provided by Xcode.

See Installing Xcode on a Mac and Installing the Xcode Command Line Tools on a Mac.

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