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分享多媒体定时器的问题
在timeSetEvent中的回调函数TimeProc
void CALLBACK TimeProc(
UINT uID,
UINT uMsg,
DWORD dwUser,
DWORD dw1,
DWORD dw2
);
其中的uMsg,dw1,dw2传过来的是什么?
谢谢
void CALLBACK TimeProc(
UINT uID,
UINT uMsg,
DWORD dwUser,
DWORD dw1,
DWORD dw2
);
其中的uMsg,dw1,dw2传过来的是什么?
谢谢
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AthlonxpX86 2003-08-26
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MSDN:
TimeProc
The TimeProc function callback function that is called once upon the expiration of a single event or periodically upon the expiration of periodic events.
void CALLBACK TimeProc(
UINT uID,
UINT uMsg,
DWORD dwUser,
DWORD dw1,
DWORD dw2
);
TimeProc is a placeholder for the application-defined function name.
Parameters
uID
Identifier of the timer event. This identifier was returned by the timeSetEvent function when the timer event was set up.
uMsg
Reserved; do not use.
dwUser
User instance data supplied to the dwUser parameter of timeSetEvent.
dw1
Reserved; do not use.
dw2
Reserved; do not use.
dwUser是timeSetEvent函数指定传给你TimeProc的4字节数据
dw1 dw2保留，不使用
TimeProc
The TimeProc function callback function that is called once upon the expiration of a single event or periodically upon the expiration of periodic events.
void CALLBACK TimeProc(
UINT uID,
UINT uMsg,
DWORD dwUser,
DWORD dw1,
DWORD dw2
);
TimeProc is a placeholder for the application-defined function name.
Parameters
uID
Identifier of the timer event. This identifier was returned by the timeSetEvent function when the timer event was set up.
uMsg
Reserved; do not use.
dwUser
User instance data supplied to the dwUser parameter of timeSetEvent.
dw1
Reserved; do not use.
dw2
Reserved; do not use.
dwUser是timeSetEvent函数指定传给你TimeProc的4字节数据
dw1 dw2保留，不使用
