The API functions are configuration and runtime functions, and include:

• MSRTCreateMsg: Creates a message
• DMGetValue: Gets the value of a variable
• PDLRTSetProp: Sets the object properties in a display

They can be used in the following places:

• within WinCC, for example in global scripts or as part of C actions in the Graphics Designer,
• in Windows applications in the programming language C (the current version of Microsoft Visual C++ is necessary as a development environment for WinCC).