用SendMessageTimeout这个API即可。
API声明:
Public Declare Function SendMessageTimeout Lib "user32" Alias "SendMessageTimeoutA" (ByVal hwnd As Long, ByVal msg As Long, ByVal wParam As Long, ByVal lParam As Long, ByVal fuFlags As Long, ByVal uTimeout As Long, lpdwResult As Long) As Long
Public Const HWND_BROADCAST = &HFFFF&
Public Const WM_SETTINGCHANGE = 26&
Public Const SMTO_NORMAL = 0&
调用实现:
SendMessageTimeout HWND_BROADCAST, WM_SETTINGCHANGE, 0, 0, SMTO_NORMAL, 1000, dwresult
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好深奥哦