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Continuous Paper

TECH TIP: Printing to Continuous Paper Layout For continuous printing (for example a receipt) use Title/Summary and removing the Header/Footer. Set the PrintHeight of each to phDynamic. Layout the DetailBand to print a single line item. Set the margins to 0 or to the smallest that the printer driver will support (some printers have an unprintable  Full Article…

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Canvas Does Not Allow Drawing

The exception ‘Canvas does not allow drawing’ is a Delphi exception that is raised when an application cannot get a valid handle to a Canvas associated with a bitmap, screen, or printer.   Trouble Shooting Memory/Resource LeaksWe recommend running the application using a tool, such as FastMM, or AQTime, that can check for memory/resource leaks.  Full Article…

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Why Preview May Not Match Printed Output

ReportBuilder uses the Printer device context to perform all calculations required to generate the report pages. This includes measuring text, wrapping text, and calculating the vertical page space required by a stretchable component such as a memo. Using the Printer device context results in a very high degree of accuracy when printing to the printer.  Full Article…

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