WinCC C Script

dear all, i am trying to make a scrip in WinCC v 7 as fallow,

1- if the alarm signal is set = the indication square will start flashing red.

// for this i used ""SETTAGBIT("SETALARM",1)"" WORK FINE

2- if i click on the square, the square will stop flashing and stay red.

3- until the alarm reason is clear "reset", it will be possible to acknowledge the alarm

can you suggest how to do so

thanks

Dear all
i have done most of the question, but i am having difficulty with the last poin


1- if the alarm signal is set = the indication square will start flashing red.

// for this i used ""SETTAGBIT("SETALARM",1)"" WORK FINE

2- if i click on the square, the square will stop flashing and stay red.

// for this i used ""SETTAGBIT("SETALARM",0)"" WORK FINE
""SETTAGBIT("SETRED",1)"" WORK FINE
3- until the alarm reason is clear "reset", it will be possible to acknowledge the alarm

for this one i need to create a script in C in which, if SETALARM = 0, then alarm will be acknowledge


can you suggest how to do so please