THPDFViewerModel Snapshot Methods

Creates page images without constructing a Viewer control and reuses the loaded page render cache

Declarations

function CreatePageSnapshot(PageIndex: Integer; DPI: Integer= 150): TBitmap;
function CreateCurrentPageSnapshot(DPI: Integer= 150): TBitmap;
function SaveCurrentPageSnapshotToBMP(const FileName: string; DPI: Integer= 150): boolean;

Usage notes

• The caller owns and must free each returned TBitmap
• DPI values are clamped to the supported range from 12 through 2400
• Invalid document or page state returns nil from the creation methods
• SaveCurrentPageSnapshotToBMP writes Windows BMP output and returns whether the file was created