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| قبل الحدث, حدث أولي (A synchronous event whose handler runs completely before the action that raised the event starts) ؛قبل الحدث (Occurring before a core system operation occurs) | |||
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| قبل الحدث, حدث أولي (A synchronous event whose handler runs completely before the action that raised the event starts) ؛قبل الحدث (Occurring before a core system operation occurs) | |||
