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百度 迷你歌咏亭因其可快速复制、需求相对普遍、依靠线下人流、盈利回本预期明晰等项目特征，吸引了资本的目光。
Assigns an activation context to the callback environment.
Syntax
void TpSetCallbackActivationContext(
[in, out] PTP_CALLBACK_ENVIRON CallbackEnviron,
[in, optional] _ACTIVATION_CONTEXT *ActivationContext
);
Parameters
[in, out] CallbackEnviron
A TP_CALLBACK_ENVIRON structure that defines the callback environment. The TpInitializeCallbackEnviron function returns this structure.
[in, optional] ActivationContext
Pointer to an _ACTIVATION_CONTEXT structure.
Return value
None
Remarks
This function is implemented as an inline function.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | winnt.h |
See also
TpSetCallbackFinalizationCallback