问题描述
我正在将SVG导出支持添加到使用MFC构建的旧应用程序中，并使用普通的旧GDI.由于SVG 1.1不支持文本换行，因此我不得不手动执行此操作.
I'm adding SVG export support to an old application built with MFC and using plain old GDI. As SVG 1.1 doesn't support text wrapping, I am forced to do this manually.
该应用程序为我提供了一个 CFont 实例(其中包含一个 HFONT ).我可以使用 CFont :: GetTextExtentPoint()计算一段文本的宽度，但是我还没有找到如何获取字体的行高.
The application provides me with a CFont instance (which contains an HFONT). I can calculate the width of a piece of text using CFont::GetTextExtentPoint(), but I haven't found out how to obtain the line height of a font yet.
如何获取字体的行高?还是 CFont :: GetTextExtentPoint()总是返回Y坐标中的行高(而不是文本紧密配合的边框的实际高度)?
How can I obtain the line height of my font?Or does CFont::GetTextExtentPoint() always return the line height in the Y coordinate (instead the actual height of the text's tight-fitting bounding box)?
推荐答案
我认为我有可能的答案:
I think I have a possible answer:
CDC desktopDC;
desktopDC.Attach(::GetDC(0));
desktopDC.SelecTObject(&font);
::TEXTMETRIC metrics;
desktopDC.GetTextMetrics(&metrics);
int lineHeight = metrics.tmHeight + metrics.tmExternalLeading;
这有点麻烦，因此，如果有一个更短，更明显的解决方案(或者如果有人可以确认 CFont :: GetTextExtentPoint()为我提供实际的行高)，我会很高兴听到它;)
It's a bit cumbersome, so if there's a shorter, more obvious solution (or if anyone can confirm that CFont::GetTextExtentPoint() provides me with the actual line height), I'd be happy to hear it still ;)
这篇关于如何获得GDI HFONT的线高?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！