Description
Returns true if the code is executing in an event context.
Syntax
truefalse = IsEventContext ()
Remarks
When an event occurs, the associated code is executed. That code, and any functions or subroutines called by that code, is being executed in an event context. Code executed from the command line in the System Editor or via the OpenEngine C interface is not executed in event context. Some functions, like Send_Event, must be executed in an event context or an error will occur. To test for event context, call IsEventContext and test the return value.
Returns
True if the code is executing within event context.
Example
subroutine TestEventContext(void) declare function IsEventContext declare subroutine Message_Box, MessageBox $insert Message_Box_Equates if IsEventContext() then Text = "Run from an event or the system monitor" Title = "TestEventContext" Message_Box(@window, Text, Title, MSG_ICON_INFO$) end else Text = "Run from the System Editor": \00\ Title = "TestEventContext": \00\ MessageBox(0, Text, Title, MSG_ICON_INFO$) end return
