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| author | Liang Qi <liang.qi@qt.io> | 2017-10-30 08:43:14 +0100 |
|---|---|---|
| committer | Liang Qi <liang.qi@qt.io> | 2017-10-30 08:54:05 +0100 |
| commit | 17d51411132edef53e79dcbaf1046f06f79bed5d (patch) | |
| tree | 38398d448b30313f91960c70a3a28cce91293da9 /src/gui/image/qimagereader.cpp | |
| parent | ea0e868c4881944207e9b3a77011e05a505ff3b7 (diff) | |
| parent | 9f0dda29d5d070f63b7f098139f01f07ec91ffdf (diff) | |
Merge remote-tracking branch 'origin/5.9' into 5.10
Conflicts:
src/plugins/platforms/windows/qwindowswindow.cpp
tests/auto/widgets/kernel/qaction/tst_qaction.cpp
Change-Id: Ia017a825ed2ca2d53ac586f4ae48df6f65818d40
Diffstat (limited to 'src/gui/image/qimagereader.cpp')
| -rw-r--r-- | src/gui/image/qimagereader.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp index 7a5a630495..7086e102ea 100644 --- a/src/gui/image/qimagereader.cpp +++ b/src/gui/image/qimagereader.cpp @@ -72,6 +72,11 @@ that occurred, or errorString() to get a human readable description of what went wrong. + \note QImageReader assumes exclusive control over the file or + device that is assigned. Any attempts to modify the assigned file + or device during the lifetime of the QImageReader object will + yield undefined results. + \section1 Formats Call supportedImageFormats() for a list of formats that @@ -1220,10 +1225,13 @@ 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 { |