Class hierarchy:

IPCsApplication IPCsDocument IPCsDrawing

Properties / Methods:

GetSymbolFromHandle	Returns a Symbol (IPCsSymbol ). Parameters needed: A pagenumber, and the handle to the symbol (cardinal). If pagenumber is -1, then the method will find the correct page itself. Syntax:function GetSymbolFromHandle(PageNo: Integer; SymbolHandle: Integer): IPCsSymbol;
GetLineFromHandle	Returns a Line (IPCsLine ). Parameters needed: A pagenumber, and the handle to the line (cardinal). If pagenumber is -1, then the method will find the correct page itself. Syntax:function GetLineFromHandle(PageNo: Integer; LineHandle: Integer): IPCsLine;
GetTextFromHandle	Returns a Text (IPCsText ). Parameters needed: A pagenumber, and the handle to the text (cardinal). If pagenumber is -1, then the method will find the correct page itself. Syntax:function GetTextFromHandle(PageNo: Integer; TextHandle: Integer): IPCsText;
Pages	Selecting a specific page in the project. Type is IPCsPages
Title	The title of the project
Lists	Used to retrieve list of symbol, lines etc. Type is IPCsLists
Preferences	Used to get snapvalues from a page. Type is IPCsDrawingPreferences
ProjectData	Used to read and write projectdata. Parameters needed: An integer, which is the number of Projectdata-item to access. Method returns a string. To get number of Projectdata, use Drawings method ProjectDataDefs Example:Drawing.ProjectData[x] See the predefined list of ProjectDataDefs
ProjectDataDefs	Each Drawing.ProjectData has a fieldname. Get it through ProjectDataDef. Ex. ProjectDataDef[0] (Prehaps its = 'Customername'). And ProjectData[0] contains the value assigned to that field To get number of items use VarArrayHighBound(Drawing.ProjectDataDefs,1) See the predefined list of ProjectDataDefs The none-predefined list can be made by this simple code
PageDataDefs	To get number of items, use VarArrayHighBound(Drawing.PageDataDefs,1) See the predefined list of PageDataDefs The none-predefined list can be made by this simple code
ReferenceDesignations	Used to read and write referencedata. Type is IPCsReferenceDesignations
SymbolDataDefs	To get number of items, use VarArrayHighBound(Drawing.SymbolDataDefs,1) See the predefined list of ProjectDataDefs The none-predefined list can be made by this simple code
LibTypes	Selecting a specific IPCsLibType
Layers	Selecting a specific IPCsLayers

Comments:

It's possible to getting access to a page in 2 different ways.
Either use the ActivePage property (PCsApplication.ActiveDocument.ActivePage.Symbols....)
Or use the drawing property to select a specific page (PCsApplication.ActiveDocument.Drawing.Pages[integer].Symbols)
If the integer used is the actual active pagenumber, the 2 different calls will give the same result.

Class hierarchy:

IPCsApplication IPCsDocument IPCsDrawing 2

Properties / Methods:

LoadLogo	Loads a logo. Parameters needed: A index that should be either 0 or 1 (0 = logo1, 1=logo2), and the filename to the logo. Syntax:function loadLogo(Index: Integer; const Filename : widestring): boolean; Fileformat supported: BMP, JPG, GIF & PNG.
LogoCount	Number of logos in a project
Logos	Used to access a specific Logo. Parameters needed: an integer. Return type is IPCsExternalObject Syntax:property Logos[Index: Integer]: IPCsExternalObject
SynchronizePLCData	If called with 'UPDATEPLCS=TRUE', transfers data from PLC reference to PLC i/o. If called with 'UPDATEPLCS=FALSE', transfers data from PLC i/o to PLC reference.
UpdateFromDatabase	Updates the project from the database.

Comments:

To get access to IPCsDrawing2 methods and properties, it's necessary to typecast IPCsDrawing to IPCsDrawing2.
This can be done like this: (PCsApplication.ActiveDocument.Drawing as IPCsDrawing2).