public partial class AdjustVolume { [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, uint wParam, uint lParam); const uint WM_APPCOMMAND = 0x319; const uint APPCOMMAND_VOLUME_UP = 0x0a; const uint APPCOMMAND_VOLUME_DOWN = 0x09; const uint APPCOMMAND_VOLUME_MUTE = 0x08; public static void PlusVolume(IntPtr hWnd) { //增加音量 SendMessage(hWnd, WM_APPCOMMAND, 0x30292, APPCOMMAND_VOLUME_UP * 0x10000); } public static void MinusVolume(IntPtr hWnd) { //减少音量 SendMessage(hWnd, WM_APPCOMMAND, 0x30292, APPCOMMAND_VOLUME_DOWN * 0x10000); } public static void MuteSwitch(IntPtr hWnd) { //静音切换 SendMessage(hWnd, WM_APPCOMMAND, 0x200eb0, APPCOMMAND_VOLUME_MUTE * 0x10000); } }
控制Windows音量
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