THotPDF.MeasureLayoutElement Method
Measures a reusable layout element against immutable page constraints without exposing a drawing surface
声明
function MeasureLayoutElement(Element: THPDFLayoutElement; AvailableWidth, AvailableHeight: Single): THPDFLayoutMeasurement;单元
HPDFDoc
参数
| 名称 | 用途 |
|---|---|
Element | Caller-owned reusable layout element to measure |
AvailableWidth | Maximum width available in current document units |
AvailableHeight | Maximum height available in current document units |
返回值
Returns validated dimensions, split capability, and the centrally computed fit result
使用说明
- Measure receives only immutable constraints and cannot draw through a page or document parameter
- Negative dimensions returned by a custom element are rejected