The QDBus namespace contains miscellaneous identifiers used throughout the Qt D-Bus module. 更多...
| 头： | #include <QDBus> |
| qmake: | QT += dbus |
| enum | CallMode { NoBlock, Block, BlockWithGui, AutoDetect } |
The QDBus namespace contains miscellaneous identifiers used throughout the Qt D-Bus module.
This enum describes the various ways of placing a function call. The valid modes are:
| 常量 | 值 | 描述 |
|---|---|---|
QDBus::NoBlock
|
0
|
Place the call but don't wait for the reply (the reply's contents will be discarded). |
QDBus::Block
|
1
|
Don't use an event loop to wait for a reply, but instead block on network operations while waiting. This means the user-interface may not be updated until the function returns. |
QDBus::BlockWithGui
|
2
|
Use the Qt event loop to wait for a reply. This means that the user-interface will stay responsive (processing input events), but it also means other events may happen, like signal delivery and other D-Bus method calls. |
QDBus::AutoDetect
|
3
|
Automatically detect if the called function has a reply. |
When using BlockWithGui, applications must be prepared for reentrancy in any function.
