TExcelFile.PrintOptionsInitializedFromPrinter Property
If this property is false, then Excel has not read the printer options from the printer, and PrintLandscape, PrintPaperSize, PrintScale, PrintXResolution, PrintYResolution and PrintCopies will be ignored. This property will change automatically to true if you manually change any of the above properties.
Remarks
You shouldn't have to set this property, as it is set automatically to true when you set the others like PrintLandscape. But if you set it to true, it will not only set the print options to initialized, but also initialize all uninitialized properties like PrintLandscape to default values.
Syntax
Unit: FlexCel.Core
property TExcelFile.PrintOptionsInitializedFromPrinter: Boolean