Text output needs clipping?
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Category: Codejock Products
Forum Name: Syntax Edit
Forum Description: Topics Related to Codejock Syntax Edit
URL: http://forum.codejock.com/forum_posts.asp?TID=6200
Printed Date: 23 November 2024 at 7:17pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Text output needs clipping?
Posted By: _esl
Subject: Text output needs clipping?
Date Posted: 23 January 2007 at 6:31pm
I noticed that when the font is set to Consolas and ClearType rendering is on, I can see that sometimes the last column of pixels of a text block is overdrawn by the next block, cropping round letters:
 The effect disappeared when I changed CXTPSyntaxEditPaintManager::DrawLineText to use ExtTextOut with clipping:
... CRect rcBGex(nOutCol, /*nTxtBottom - 1 -> */iLine, nOutCol + nTxtWidth, nTxtBottom); ... pDC->FillSolidRect(&rcBGex, pDC->GetBkColor()); /* pDC->TextOut(nOutCol, iLine, pOutText, nOutTextLen); -> */ pDC->ExtTextOut(nOutCol, iLine, ETO_CLIPPED|ETO_OPAQUE, &rcBGex, pOutText, nOutTextLen, NULL); |
Replies:
Posted By: esc67
Date Posted: 07 February 2007 at 12:17am
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I noticed a similar problem in the MDI Text Editor sample (straight Debug build, no changes). In my case entire letters are missing.
See how the "e" in "parent:file" is totally occluded:
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