Application

Application ¶

The Application object represents the After Effects application. Attributes provide access to the project and application-level settings parsed from the binary file.

Example

from py_aep import parse

app = parse("project.aep")
print(app.version)

See: https://ae-scripting.docsforadobe.dev/general/application/

Attributes¶

active_viewer ¶

active_viewer: Viewer | None

The Viewer object for the currently focused or active-focused viewer (Composition, Layer, or Footage) panel. Returns None if no viewers are open. Read-only.

app_name ¶

app_name: str = 'After Effects'

The name of the application. Always "After Effects". Read-only.

build_name ¶

build_name: str

A string indicating the version and build of After Effects, formatted as "{major}.{minor}x{build}" (e.g., "25.6x101"). Read / Write.

Alias for version.

Warning

This attribute is read-only in ExtendScript. Modifying it could cause issues when opening the file in After Effects.

build_number ¶

build_number = ChunkField[str](
    "_head",
    "ae_build_number",
    reverse_seq_field=int,
    invalidates=["version"],
)

The build number of After Effects that last saved the project. Read / Write.

Warning

This attribute is read-only in ExtendScript. Modifying it could cause issues when opening the file in After Effects.

is_beta ¶

is_beta = bool('_head', 'ae_version_beta_flag')

Indicates whether the After Effects version is a beta version. Read / Write.

Warning

This attribute is read-only in ExtendScript. Modifying it could cause issues when opening the file in After Effects.

project ¶

project: Project

The project that is currently loaded. Read-only.

version ¶

version = ChunkField[str](
    "_head",
    "version",
    reverse_instance_field=_reverse_version,
    invalidates=["ae_version_major"],
)

The version of After Effects that last saved the project, formatted as "{major}.{minor}x{build}" (e.g., "25.6x101"). Read / Write.

Warning

This attribute is read-only in ExtendScript. Modifying it could cause issues when opening the file in After Effects.