PDFium Component Docs

InvertPdfBitmap eljárás

Unit: PDFium
A renderelt 32 bites TBitmap RGB csatornáit helyben invertálja sötét módú vagy nagy kontrasztú megjelenítéshez

Syntax

procedure InvertPdfBitmap(Bitmap: TBitmap);

Parameters

BitmapTBitmap

Description

The helper forces pf32bit and updates ScanLine pixels directly, so it works after RenderPage or ToBitmap without an extra staging buffer

Use these helpers before displaying, saving, or exporting the rendered bitmap when the reader needs a low-vision colour mode

Remarks

Example

Bitmap := Pdf1.RenderPage(0, 0, Width, Height);
InvertPdfBitmap(Bitmap);

See Also

RenderPage, RenderPage