Changeset 1034 for trunk/README.OS2

Timestamp:

Aug 29, 2011, 1:43:52 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

OS/2: Disable native window masking code as it is not complete.

This code is only necessary for child widgets that have native windows.
Applications using this approach are very rare (they include e.g. video
players that paint to Qt widgets on their own using native window IDs)
and they don't need masking in these widgets or their ancestors anyway.

The current implementation lacks some functionality -- in particular, it
cannot properly issue WM_VRNENABLED/WM_VRNDISABLED notifications
which breaks those video players, so that keeping it enabled makes little
to no sense.

The relevant code remains in place but guarded by the
QT_PM_NATIVEWIDGETMASK compiler macro so that it can be enabled
as needed for further experiments. See also #203 for more details.

File:

• trunk/README.OS2 (modified) (1 diff)

trunk/README.OS2

@@ -613 +613 @@
 CURRENT LIMITATIONS
 
-  1. configure.cmd is does not build demos and examples by default (to save
-     time). They may be built by hand, as described above.
-
-  2. configure.cmd does not understand all command line options understood by
+  1. configure.cmd does not understand all command line options understood by
      configure scripts on other platforms. If you want to customize your build
      of the Qt library (which is normally not recommended and not supported),
      you may try to modify configure.cmd itself.
 
-  3. OS/2 bitmap fonts are not supported. Use TTF or Type1 (PFB) fonts with Qt.
+  2. OS/2 bitmap fonts are not supported. Use TTF or Type1 (PFB) fonts with Qt.
+
+  3. No support for widget masks and trapsparency in top-level widgets and in
+     child widgets with native window IDs (Presentation Manager limitation).
 
   4. No native PM style, but Qt will use fonts and colors from the current