The WinCOM API function list

The WinCOM API is based on the front call technique as described in Front End Functions. All WinCOM functions are grouped in the WinCOM front end function module.

Table 1. Windows COM front-end functions
Function name	Description
CALL ui.Interface.frontCall("WinCOM","CreateInstance", [ `program` ], [`handle`] )	The `CreateInstance` function creates an instance of a registered COM object.
CALL ui.Interface.frontCall("WINCOM","CallMethod", [ `handle`, `method`, `arg1`, `...` ], [`result`] ) CALL ui.Interface.frontCall("WINCOM","CallMethod", [ `handle`, `method`(`arg1`, `...`) ], [`result`] )	The `CallMethod` function calls a method on a specified object.
CALL ui.Interface.frontCall("WINCOM","GetProperty", [ `handle`, `member` ], [`result`] )	The `GetProperty` function gets a property of an object.
CALL ui.Interface.frontCall("WINCOM","SetProperty", [`handle`, `member`, `value`], [`result`] )	The `SetProperty` function sets a property of an object.
CALL ui.Interface.frontCall("WINCOM","GetError", [], [`result`] )	The `GetError` function gets a description of the last error which occurred.
CALL ui.Interface.frontCall("WINCOM","ReleaseInstance", [`handle`], [`result`] )	The `ReleaseInstance` function releases an Instance of a COM object.

Supported syntax

COM language syntax is very flexible and allows lots of notation. Genero WinCOM API is slightly more strict:

:= notation is allowed in version 2.00.1e (or later) only; for instance: myFunction(SourceType:=3)
"no parenthesis" notation is not allowed; for instance: myFunction 3 must be writtenmyFunction(3)
numeric constants are allowed in version 2.00.1e (or later) only. The constant list depends on the application used via WinCOM, therefore the list is configurable: a file named etc/WinCOM.cst gathers all the constants provided today by Microsoft™ for Office XP. It can be modified to add user-defined constants. Example with Word: CALL ui.Interface.frontCall("WINCOM","SetProperty", [wdapp,"Selection.Font.Bold","9999998"],[wddoc]) Here, "9999998" stands for the constant wdToggle (see etc/WinCOM.cst).
There is no way to handle an array as a method argument. This is also due to BDL limitation: you can't pass BDL Arrays to frontcalls.