diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2017-10-19 10:07:50 +0200 |
|---|---|---|
| committer | Liang Qi <liang.qi@qt.io> | 2017-10-24 12:23:15 +0000 |
| commit | 7c5475f1c03a4b9d6c023bc7ff937e1fc2f62271 (patch) | |
| tree | 4479ce1f84fbbfdb2acd9ba705e2e9c9b05c0105 /src/gui | |
| parent | 0261c22d41ed7be5adb5bab8a8ae4ee3c10968e9 (diff) | |
Doc: add hint about QMimeDatabase to QImageReader::canRead()
Task-number: QTBUG-63568
Change-Id: I5b700138487dbebfc8cbe70eb3a076efceafb361
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/image/qimagereader.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
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 { |