how and where ‘xTaskHandle’ is defined?

I want to learn how a task handle is DEFINED, but I have searched in the source code of freertos 7.6.0, and cannot find any place for the DEFINITION, not declaration of xTaskHandle. anyone can help?

how and where ‘xTaskHandle’ is defined?

See line 96: http://sourceforge.net/p/freertos/code/HEAD/tree/tags/V7.6.0/FreeRTOS/Source/include/task.h Note FreeRTOS 8 renames this TaskHandlet, and includes a #define xTaskHandle TaskHandlet to allow backward compatibility. Regards.