From 7c5475f1c03a4b9d6c023bc7ff937e1fc2f62271 Mon Sep 17 00:00:00 2001 From: Eirik Aavitsland Date: Thu, 19 Oct 2017 10:07:50 +0200 Subject: [PATCH] Doc: add hint about QMimeDatabase to QImageReader::canRead() Task-number: QTBUG-63568 Change-Id: I5b700138487dbebfc8cbe70eb3a076efceafb361 Reviewed-by: Venugopal Shivashankar --- src/gui/image/qimagereader.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp index 381ddb5b45..f49e90ba0a 100644 --- a/src/gui/image/qimagereader.cpp +++ b/src/gui/image/qimagereader.cpp @@ -1211,10 +1211,13 @@ float QImageReader::gamma() const see if the image data is valid. read() may still return false after canRead() returns \c true, if the image data is corrupt. + \note A QMimeDatabase lookup is normally a better approach than this + function for identifying potentially non-image files or data. + For images that support animation, canRead() returns \c false when all frames have been read. - \sa read(), supportedImageFormats() + \sa read(), supportedImageFormats(), QMimeDatabase */ bool QImageReader::canRead() const {