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This class implements a very simple IPC mechanism for KDE. You can send a message of a predefined type to either a specific application, or to all KDE application on the current display. The message can carry one integer of data.
KIPC is mainly used in KDE for sending "Change Messages", i.e. a message to all KDE apps that a certain setting (the font, for example) has changed. For anything more complex it is recommended to use DCOP -- the Desktop Communications Protocol.
Messages with id code < 32 are called "System Messages". These are directly handled by KApplication. Examples are: PaletteChanged and StyleChanged. Messages with id code >= 32 are user messages. KApplication emits the signal kipcMessage(id,arg) for each user message it receives.
KIPC is implemented using X11 ClientMessage events.
| enum Message { PaletteChanged=0, FontChanged, StyleChanged, BackgroundChanged, SettingsChanged, IconChanged, ToolbarStyleChanged, UserMessage=32 } | Message |
| void sendMessage (Message msg, WId w, int data=0)
| sendMessage |
[static]
Send a message to a specific application.
Parameters:
| msg | The message to send. |
| w | The window id of a toplevel window of the target application. |
| data | An optional integer of data. |
| void sendMessageAll (Message msg, int data=0)
| sendMessageAll |
[static]
Send a message to all KDE application on the current display.
Parameters:
| msg | The message to send. |
| data | An optional integer of data. |