Changeset 769 for trunk/doc/src/platforms/emb-directfb-EmbLinux.qdoc

Timestamp:

Aug 2, 2010, 9:27:30 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.3 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• doc/src/platforms/emb-directfb-EmbLinux.qdoc (modified) (2 diffs)

trunk/doc/src/platforms/emb-directfb-EmbLinux.qdoc

@@ -268 +268 @@
     \o By default Qt will use DirectFB to load QPixmaps from disk/memory. If
 your DirectFB implementation does not support this it might make sense to
-define this.
+define this. If you see strange rendering issues with pixmaps that have an
+alpha channel defining this could solve the problem.
 
  \row
@@ -328 +329 @@
 defines should only be used when optimizing the application. 
 
+\section2 Top level transparency
+\note DirectFB supports partially or fully transparent top level windows,
+either through QWidget::setWindowOpacity or through setting a non-opaque
+background brush. Note that for the latter it is not supported to change an
+opaque window to be transparent at runtime.
 */