diff options
Diffstat (limited to 'examples/opengl/overlay_x11/README.X11-OVERLAYS')
| -rw-r--r-- | examples/opengl/overlay_x11/README.X11-OVERLAYS | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/examples/opengl/overlay_x11/README.X11-OVERLAYS b/examples/opengl/overlay_x11/README.X11-OVERLAYS index 18bcb1e5..7d014bbc 100644 --- a/examples/opengl/overlay_x11/README.X11-OVERLAYS +++ b/examples/opengl/overlay_x11/README.X11-OVERLAYS @@ -11,7 +11,7 @@ highly recommended book "OpenGL Programming for the X Window System" UPDATE: From version 5.0 onwards, the TQt OpenGL Extension includes direct support for use of OpenGL overlays. For many uses of overlays, this makes the technique described below redundant. See the 'overlay' -example program. The following is a discussion on how to use non-QGL +example program. The following is a discussion on how to use non-TQGL widgets in overlay planes. ----------------------------------------------------------------------- @@ -43,9 +43,9 @@ for more information. How it works: ------------- -Given the above, a QGLWidget will by default use the main plane +Given the above, a TQGLWidget will by default use the main plane visual, while all other widgets will use the overlay visual. Thus, one -can place a normal widget on top of the QGLWidget, and do drawing in +can place a normal widget on top of the TQGLWidget, and do drawing in it, without destroying the image in the OpenGL window. In other words, one can use all the drawing capabilities of TQPainter to draw the annotations, rubberbands, whatever. For the typical use of overlays, @@ -85,7 +85,7 @@ the visual is in an overlay plane. transparency information for overlay visuals. The overlayrubber example program will output what visual is used for -the normal TQt widgets, and what visual is used by the QGLWidget. +the normal TQt widgets, and what visual is used by the TQGLWidget. |