Citect Scada 2018 SA Project - ActiveX Properties not set

If you've placed the ActiveX object on a graphics page using the Graphics Builder, then use the On Page Shown event in the page properties to call your code. This event isn't called until all the ActiveX objects on the page have been created (instantiated). If you're creating the object from code, you may need to keep trying to read a property of the object until you get a good value back to know when the object has finished instantiating. I've had this problem with the Process Analyst object, where even after it has finished loading, it still takes some time to communicate with the trend server before it is responsive, and there seems to be no way to be sure it is ready other than to keep trying to read a property, or just pause (Sleep()) for an arbitrary amount of time, which is less reliable.

If you've placed the ActiveX object on a graphics page using the Graphics Builder, then use the On Page Shown event in the page properties to call your code. This event isn't called until all the ActiveX objects on the page have been created (instantiated). If you're creating the object from code, you may need to keep trying to read a property of the object until you get a good value back to know when the object has finished instantiating. I've had this problem with the Process Analyst object, where even after it has finished loading, it still takes some time to communicate with the trend server before it is responsive, and there seems to be no way to be sure it is ready other than to keep trying to read a property, or just pause (Sleep()) for an arbitrary amount of time, which is less reliable.