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backend: update documentation for root_change

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Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
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Yuxuan Shui 2024-02-19 10:25:38 +00:00
parent d74e026cec
commit 3bdfda7299
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1 changed files with 3 additions and 4 deletions
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7
src/backend/backend.h
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@ -137,10 +137,9 @@ struct backend_operations {
/// Optional, not yet used
void (*resume)(backend_t *backend_data, session_t *ps);
/// Called when root property changed, returns the new
/// backend_data. Even if the backend_data changed, all
/// the existing image data returned by this backend should
/// remain valid.
/// Called when root window size changed. All existing image data ever
/// returned by this backend should remain valid after this call
/// returns.
///
/// Optional
void (*root_change)(backend_t *backend_data, session_t *ps);