THotPDF.GetLoadedCachedRenderedBitmap Method
方法摘要: THotPDF.GetLoadedCachedRenderedBitmap Method
声明
function GetLoadedCachedRenderedBitmap(PageIndex, DPI: Integer): TBitmap;单元
HPDFDoc
参数
| 名称 | 用途 |
|---|---|
PageIndex | Zero-based loaded page index |
DPI | Rendering resolution in dots per inch |
返回值
Returns the cached or newly rendered bitmap, or nil for an invalid page index
使用说明
- The render cache is protected by the document render lock
- The caller owns the returned bitmap instance according to the loaded-page rendering contract
相关 API
- THotPDF
- THPDFPage
- 目录