帮你找个帮助,看看吧。
AXC_OnBtnMsgNext(char* pszMsgWin)
Function
External message window operation
This function switches to the next message in the message list.
Syntax
BOOL AXC_OnBtnMsgNext (char* lpszPictureName, char* lpszObjectName)
Parameters
lpszPictureName
Pointer to the name of the picture in which the WinCC Alarm Control is located
lpszObjectName
Pointer to the object name of the WinCC Alarm Control
Return value
TRUE
The function has been completed without any errors.
FALSE
An error has occurred.
wincc安装的时候,你可以把帮助都装上,在开始菜单中找到wincc,之后打开WINCC information system。