TPDFlibViewerZoomMode
Data types, viewer interaction
Description
Enum that selects how the viewer derives its effective zoom
Consumed by the ZoomMode property, SetZoomMode and the viewer's layout arithmetic; in fit modes the effective factor comes from the page and viewport sizes and is recomputed on resize, rotation and DPI change
The fit actions TPDFlibViewerFitWidth and TPDFlibViewerFitPage switch between these modes and mirror the active one in Checked
Declaration
TPDFlibViewerZoomMode = (zmPercent, zmFitWidth, zmFitPage);Values
| zmPercent | Uses ZoomPercent directly, with 100 percent mapping one PDF point to ScreenDPI/72 pixels |
|---|---|
| zmFitWidth | Computes the largest zoom at which the full page width fits the viewport |
| zmFitPage | Computes the largest zoom at which the whole page fits the viewport |
See also
ZoomMode, SetZoomMode, ZoomPercent, EffectiveZoomPercent, TPDFlibViewerFitWidth, TPDFlibViewerFitPage