从osx中的代码更改键盘布局

Question

我使用下面的代码从代码更改键盘布局，但在第二行的警告下面发生。

//warning
Assigning to 'TISInputSourceRef' (aka 'struct __TISInputSource *') from 'const void *' discards qualifiers

---

//code
CFArrayRef sourceList = TISCreateInputSourceList (NULL, false);
TISInputSourceRef wantedSource= CFArrayGetValueAtIndex(sourceList, 0);
TISSelectInputSource(wantedSource);

Answer 1

我认为您需要转换CFArrayGetValueAtIndex返回的值，其类型为const void*：

TISInputSourceRef wantedSource = (TISInputSourceRef)CFArrayGetValueAtIndex(sourceList, 0);