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Shared pixmap client.
A shared pixmap is a pixmap that resides on the X server, is referenced by a global id string, and can be accessed by all X clients.
This class is a client class to shared pixmaps in KDE. You can use it to copy (a part of) a shared pixmap into. KSharedPixmap inherits KPixmap for that purpose.
The server part of shared pixmaps is not implemented here. That part is provided by KPixmapServer, in the source file: kdebase/kdesktop/pixmapserver.cc.
An example: copy from a shared pixmap:
KSharedPixmap *pm = new KSharedPixmap; connect(pm, SIGNAL(done(bool)), SLOT(slotDone(bool))); pm->loadFromShared("My Pixmap"); |
| KSharedPixmap ()
| KSharedPixmap |
Construct an empty pixmap.
| ~KSharedPixmap ()
| ~KSharedPixmap |
Destroys the pixmap.
| bool loadFromShared (QString name, QRect rect=QRect())
| loadFromShared |
Load from a shared pixmap reference. The signal done() is emitted when the operation has finished.
Parameters:
| name | The shared pixmap name. |
| rect | If you pass a nonzero rectangle, a tile is generated which is able to fill up the specified rectangle completely. This is solely for optimisation: in some cases the tile will be much smaller than the original pixmap. It reflects KSharedPixmap's original use: sharing of the desktop background to achieve pseudo transparency. |
Returns: True if the shared pixmap exists and loading has started successfully, false otherwise.
| bool isAvailable (QString name)
| isAvailable |
Check whether a shared pixmap is available.
Parameters:
| name | The shared pixmap name. |
Returns: True if the shared pixmap is available, false otherwise.
| void done (bool success)
| done |
[signal]
This signal is raised when a pixmap load operation has finished.
Parameters:
| success | True if successfull, false otherwise. |
| bool x11Event (XEvent *)
| x11Event |
[protected]