NAME

SDL2::gesture - SDL Gesture Event Handling

SYNOPSIS

    use SDL2 qw[:gesture];

DESCRIPTION

SDL2::gesture provides functions that allow for simple and complex gesture events. These functions may be imported by name or with the :gesture tag.

Functions

These may be imported by name or with the :gesture tag.

SDL_RecordGesture( ... )

Begin recording a gesture on a specified touch device or all touch devices.

If the parameter touchId is -1 (i.e., all devices), this function will always return 1, regardless of whether there actually are any devices.

Expected parameters include:

touchId - the touch device id, or -1 for all touch devices

Returns 1 on success or 0 if the specified device could not be found.

SDL_SaveAllDollarTemplates( ... )

Save all currently loaded Dollar Gesture templates.

Expected parameters include:

dst - a SDL2::RWops to save to

Returns the number of saved templates on success or 0 on failure; call SDL_GetError( ) for more information.

SDL_SaveDollarTemplate( ... )

Save a currently loaded Dollar Gesture template.

Expected parameters include:

gestureId - a gesture id

dst - a SDL2::RWops to save to

Returns 1 on success or 0 on failure; call SDL_GetError( ) for more information.

SDL_LoadDollarTemplates( ... )

Load Dollar Gesture templates from a file.

Expected parameters include:

touchId - a touch id

src - a SDL2::RWops to load from

Returns the number of loaded templates on success or a negative error code (or 0) on failure; call SDL_GetError( ) for more information.

Defined Types

These are used internally.

SDL_GestureID

A signed 64-bit integer.

LICENSE

Copyright (C) Sanko Robinson.

This library is free software; you can redistribute it and/or modify it under the terms found in the Artistic License 2. Other copyrights, terms, and conditions may apply to data transmitted through this module.

AUTHOR

Sanko Robinson <sanko@cpan.org>

cpanm SDL2::FFI

perl -MCPAN -e shell
install SDL2::FFI