Как программно сделать mute

← →
alsov © (2005-10-01 19:29) [0]

Приветствую, Мастера

Подскажите код как программно сделать mute(вуключить/включить звук)

Надо чтобы работал на всех виндах

Нашел код, но он работает только пож хп
unit uMute; interface uses MMSystem, Windows, SysUtils; function GetMasterMute(Mixer: hMixerObj; var Control: TMixerControl): MMResult; procedure SetMasterMuteValue(Mixer: hMixerObj; Value: Boolean); implementation function GetMasterMute(Mixer: hMixerObj; var Control: TMixerControl): MMResult; // Returns True on success var Line: TMixerLine; Controls: TMixerLineControls; begin ZeroMemory(@Line, SizeOf(Line)); Line.cbStruct := SizeOf(Line); Line.dwComponentType := MIXERLINE_COMPONENTTYPE_DST_SPEAKERS; Result := mixerGetLineInfo(Mixer, @Line, MIXER_GETLINEINFOF_COMPONENTTYPE); if Result = MMSYSERR_NOERROR then begin ZeroMemory(@Controls, SizeOf(Controls)); Controls.cbStruct := SizeOf(Controls); Controls.dwLineID := Line.dwLineID; Controls.cControls := 1; Controls.dwControlType := MIXERCONTROL_CONTROLTYPE_MUTE; Controls.cbmxctrl := SizeOf(Control); Controls.pamxctrl := @Control; Result := mixerGetLineControls(Mixer, @Controls, MIXER_GETLINECONTROLSF_ONEBYTYPE); end; end; procedure SetMasterMuteValue(Mixer: hMixerObj; Value: Boolean); var MasterMute: TMixerControl; Details: TMixerControlDetails; BoolDetails: TMixerControlDetailsBoolean; Code: MMResult; begin Code := GetMasterMute(0, MasterMute); if Code = MMSYSERR_NOERROR then begin with Details do begin cbStruct := SizeOf(Details); dwControlID := MasterMute.dwControlID; cChannels := 1; cMultipleItems := 0; cbDetails := SizeOf(BoolDetails); paDetails := @BoolDetails; end; LongBool(BoolDetails.fValue) := Value; Code := mixerSetControlDetails(0, @Details, MIXER_SETCONTROLDETAILSF_VALUE); end; if Code <> MMSYSERR_NOERROR then raise Exception.CreateFmt("SetMasterMuteValue failure, multimedia system error #%d", [0]); end; end.

Спасибо за любую помощь

← →
S@shka © (2005-10-01 20:00) [1]

www.torry.net

Вот так вроде заработало

function InvertMasterMute: Boolean;
var
MH: HMixer;
ML: TMixerLine;
MLCS: TMixerLineControls;
MLC: TMixerControl;
MCD: TMixerControlDetails;
MCDU: TMixerControlDetails_Unsigned;
begin
Result := False;
if mixerOpen(@MH, 0, 0, 0, 0) = MMSYSERR_NOERROR then
begin
ML.cbStruct := SizeOf(TMixerLine);
ML.dwComponentType := MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
if mixerGetLineInfo(MH, @ML, MIXER_OBJECTF_HMIXER or
MIXER_GETLINEINFOF_COMPONENTTYPE) = MMSYSERR_NOERROR then
begin
MLCS.cbStruct := SizeOf(TMixerLineControls);
MLCS.cbmxctrl := SizeOf(TMixerControl);
MLCS.dwLineID := ML.dwLineID;
MLCS.dwControlType := MIXERCONTROL_CONTROLTYPE_MUTE;
MLCS.cControls := 1;
MLCS.pamxctrl := @MLC;
if (mixerGetLineControls(MH, @MLCS, MIXER_OBJECTF_HMIXER or
MIXER_GETLINECONTROLSF_ONEBYTYPE) = MMSYSERR_NOERROR) then
begin
MCD.cbStruct := SizeOf(TMixerControlDetails);
MCD.dwControlID := MLC.dwControlID;
MCD.cChannels := 1;
MCD.cMultipleItems := 0;
MCD.cbDetails := SizeOf(TMixerControlDetails_Unsigned);
MCD.paDetails := @MCDU;
if mixerGetControlDetails(MH, @MCD, 0) = MMSYSERR_NOERROR then
begin
if MCDU.dwValue = 0
then MCDU.dwValue := 1
else MCDU.dwValue := 0;
Result := (mixerSetControlDetails(MH, @MCD, 0) = MMSYSERR_NOERROR);
end;
end;
end;
end;
end;

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