Enumeration of options how the preview bitmap can be scaled by means of the Zoom factor.

• zmCustom - The current value of the Zoom factor is applied directly.
• zmFitWidth - The Zoom factor is adjusted so that the page fits horizontally into the preview window.
• zmFitHeight - The Zoom factor is adjusted such that the page fits vertically into the preview window.

Enumeration of options for the user to enable/disable features in the preview form.

• ppoNavigationBtns - Enables/disables page navigation in the preview.
• ppoNavigationEdit - Shows/hides the edit control in the preview toolbar with which the user can navigate to a specific page of the preview.
• ppoZoomBtns - Enables/disables zooming in the preview.
• ppoPageOrientationBtns - Enables/disables selection of page orientation.
• ppoMarginsBtn - Enables/disables page margin selection in the preview
• ppoHeaderFooterBtn - Enables/disables the possibility to set up the header and footer in a dialog.
• ppoPrintOrderBtns - Enables/disables the possibility to define the order of pages when the entire print-out does not fit onto a single page of paper.
• ppoCenterBtns - Shows/hides the buttons to center the grid on the printed page.
• ppoScalePrinterBtn - Shows/hides the button to scale the printer output manually or to force a given count of pages onto a single sheet.
• ppoPageSetupBtn - Shows/hides a toolbar button with a dropdown menu containing options to control the page layout (page orientation, margin selection, etc).
• ppoPageNumberInfo - Shows/hides the display of page number and total page count in the preview form.
• ppoZoomLevelInfo - Shows/hides the display of the preview zoom level (percentage) in the preview form.

Set of options for the user to enable/disable features in the preview dialog

• ppoNavigationBtns - Enables/disables page navigation in the preview.
• ppoNavigationEdit - Shows/hides the edit control in the preview toolbar with which the user can navigate to a specific page of the preview.
• ppoZoomBtns - Enables/disables zooming in the preview.
• ppoPageOrientationBtns - Enables/disables selection of page orientation.
• ppoMarginsBtn - Enables/disables page margin selection in the preview
• ppoHeaderFooterBtn - Enables/disables the possibility to set up the header and footer in a dialog.
• ppoPrintOrderBtns - Enables/disables the possibility to define the order of pages when the entire print-out does not fit onto a single page of paper.
• ppoCenterBtns - Shows/hides the buttons to center the grid on the printed page.
• ppoScalePrinterBtn - Shows/hides the button to scale the printer output manually or to force a given count of pages onto a single sheet.
• ppoPageSetupBtn - Shows/hides a toolbar button with a dropdown menu containing options to control the page layout (page orientation, margin selection, etc).
• ppoPageNumberInfo - Shows/hides the display of page number and total page count in the preview form.
• ppoZoomLevelInfo - Shows/hides the display of the preview zoom level (percentage) in the preview form.

Form class created by the TGridPrintPreviewDialog to display the preview of the grid to be printed by the TGridPrinter. Helper function which returns true when X1 is in the range between X2-Delta and X2+Delta Helper function which returns

• X if it is in the range between X1 and X2,
• X1 if X is less than X1, or
• X2 if X is greater than X2

Helper function which appends a checkmark to the given menu caption string if AEnable is true. Meant to better show the checked state of menu items having icons.