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#import "someClass.h"
@implementation someClass
- (NSInteger *)checkWakeOnLan {
SCDynamicStoreRef ds = SCDynamicStoreCreate(kCFAllocatorDefault, CFSTR("myapp"), NULL, NULL);
CFDictionaryRef dr = SCDynamicStoreCopyValue(ds, CFSTR("State:/IOKit/PowerManagement/CurrentSettings"));
CFNumberRef wol=CFDictionaryGetValue(dr, CFSTR("Wake On LAN"));
CFRelease(dr);
CFRelease(ds);
這裏我的問題,如何CFNumberRef轉換爲NSInteger的, 我一次又一次tryed,但有隨時 「使得整數指針,未投」轉換一個CFNumberRef到NSInteger的
NSInteger *value = [... ?];
return value;
}
- (IBAction)doStuff:(NSButton *)sender {
[myBevelButton setState:[self checkWakeOnLan]]; //setState takes NSInteger
//myBevelButton defined elsewhere, shows different icons
}
@end
非常感謝。很簡單,這是! :) – 2013-04-10 09:24:22
是的,只需要瞭解錯誤說明:) – 2013-04-10 09:25:00