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TA的每日心情 | 奋斗 2024-6-23 05:14 |
|---|
签到天数: 1043 天 [LV.10]以坛为家III
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<DIV class=HtmlCode>1 r2 u: m; B& |3 {" S+ n0 m
< >//---------------------------------------------------------------------------</P>7 k4 G4 i2 K; G5 O+ n
< >#ifndef SoundControlH
/ N4 `; W! A/ g- e#define SoundControlH& y F" u# Q6 h& C& B
//---------------------------------------------------------------------------; W1 \9 ]. q+ {) J% _
#include <Classes.hpp>; |" m& i: {" ]: R& [/ y% x
#include <mmsystem.h>% C1 T" G' `2 f6 n( n$ U
#include <mmreg.h></P>6 g: j; \& v- o. I- U+ r( x
< >' l* k- v: q; l/ g9 h
bool GetVolumeControl(HMIXER hmixer ,long componentType,long ctrlType,MIXERCONTROL* mxc);</P>
$ p+ i' J# i9 e$ G3 S& e6 {# o< >long GetMuteValue(HMIXER hmixer ,MIXERCONTROL *mxc) ;8 u7 y, E! u* E2 X, F
unsigned GetVolumeValue(HMIXER hmixer ,MIXERCONTROL *mxc);
+ |. @2 n5 t0 ]9 q9 H$ d6 H7 Pbool SetVolumeValue(HMIXER hmixer ,MIXERCONTROL *mxc, long volume);
" B) O# V7 s4 B$ o' Sbool SetMuteValue(HMIXER hmixer ,MIXERCONTROL *mxc, bool mute);</P>
( X, H5 {+ U, S, q6 k' [< >
6 r/ e6 g7 r2 H9 ?! b1 F! Y//下面四个是输出函数,可以自己调用
) Z2 t% s2 x* m1 X! P; R5 wbool WINAPI SetVolume(long dev,long vol);//设置设备的音量
# S4 [' f3 T5 _8 A; munsigned WINAPI GetVolume(int dev);//得到设备的音量dev=0主音量,1WAVE ,2MIDI ,3 LINE IN</P>( s+ Z7 y& r# b
< >bool WINAPI SetMute(long dev,bool vol);//设置设备静音
4 _) W* J$ i" z7 Hbool WINAPI GetMute(long dev);5 @6 n" u2 _/ D- z `$ [' L
#endif</P>
% j+ k% n4 r% H1 d: m8 k5 }/ ?7 S/ U' ~1 d
< >bool GetVolumeControl(HMIXER hmixer ,long componentType,long ctrlType,MIXERCONTROL* mxc)+ P6 d; H5 |6 l/ \/ g9 [% _+ c
{
8 E0 D; D' r2 _/ {, b8 d! f- X* AMIXERLINECONTROLS mxlc;
1 |% J5 g% l! zMIXERLINE mxl;+ I( Y: E4 |2 ~3 M% m
mxl.cbStruct = sizeof(mxl);
; l+ T; c8 ]/ }7 d, H( pmxl.dwComponentType = componentType;+ I1 O, ^, G3 h7 c% S* h" |" Q
if(!mixerGetLineInfo((HMIXEROBJ)hmixer, &mxl, MIXER_GETLINEINFOF_COMPONENTTYPE))
/ h8 S$ c: u& ^$ S3 d" i0 O9 Q0 K{
- ?! o9 l4 v( xmxlc.cbStruct = sizeof(mxlc);" D2 v9 r, w+ M& |
mxlc.dwLineID = mxl.dwLineID;$ r5 w& N; Y+ }
mxlc.dwControlType = ctrlType;( I0 i: K& T2 C. m% ]
mxlc.cControls = 1;
) Q) V4 O. }2 D2 m# r1 A/ t3 t1 smxlc.cbmxctrl = sizeof(MIXERCONTROL);
; w# f7 H8 m( b# _( @mxlc.pamxctrl = mxc;7 ?* N; A- |, V, K; J, l; x; m' i7 \
if(mixerGetLineControls((HMIXEROBJ)hmixer,&mxlc,MIXER_GETLINECONTROLSF_ONEBYTYPE))
3 Z0 f: ]8 J& j w$ preturn 0;8 c! s' N4 y7 g/ E+ V* E4 K, M
else ^: x! {! n; f; a* z# e
return 1;
) c, q1 t3 G% @- X9 B}
; U L9 g1 u: @return 0;
5 R9 \) m- ]5 S/ f} 5 N% k2 T9 ?2 v1 \
//--------------------------------------------------------------------------- ) I# b! S; V) H) P8 A2 t
long GetMuteValue(HMIXER hmixer ,MIXERCONTROL *mxc)7 W$ n$ B; s( }9 y% b
{
7 g& A% i. o1 f mMIXERCONTROLDETAILS mxcd;
" r* l8 B& k. {9 Q- z7 E: q/ [0 RMIXERCONTROLDETAILS_BOOLEAN mxcdMute;
2 ^- L( t) b( N- mmxcd.hwndOwner = 0; . j: q+ R m7 ^; P' ~" Q
mxcd.cbStruct = sizeof(mxcd); k. S1 X$ N( I9 g/ D
mxcd.dwControlID = mxc->dwControlID; " g! i o7 i/ o; G8 E
mxcd.cbDetails = sizeof(mxcdMute);
( @5 @: y! U. V8 v9 n$ Y: e- {1 J4 ^mxcd.paDetails = &mxcdMute; " `: k$ Z; U* W
mxcd.cChannels = 1;
8 ^, O, @( \7 |/ n2 ~. n) |mxcd.cMultipleItems = 0;
) a2 q6 s* i" V4 @, m$ gif (mixerGetControlDetails((HMIXEROBJ)hmixer, &mxcd,MIXER_OBJECTF_HMIXER|MIXER_GETCONTROLDETAILSF_VALUE)) 7 f; b) p9 Z, ?) N( e# A( T
return -1; 6 U/ I( y% B! P- H2 r
return mxcdMute.fValue;) ]: `3 D9 ~2 K& q* O0 B) P0 i
} </P>
( O1 R8 @+ ?2 e/ u* r3 a! {< >//--------------------------------------------------------------------------- ' q( D2 j- l) R+ I3 C
unsigned GetVolumeValue(HMIXER hmixer ,MIXERCONTROL *mxc)* S* ~1 _5 o2 F# o) Z: p
{ * F7 R; |- ]$ I+ p- `5 i
MIXERCONTROLDETAILS mxcd;
& A( ~" ?! u" m; w! p5 \5 MMIXERCONTROLDETAILS_UNSIGNED vol; vol.dwValue=0;
8 ^* p& g+ z7 N1 Y+ N5 Qmxcd.hwndOwner = 0;% c+ J' T# s" w3 a4 v( ]
mxcd.cbStruct = sizeof(mxcd); 5 F5 o) [" [" z& C' h+ H1 ]
mxcd.dwControlID = mxc->dwControlID;
, |8 J1 T& L3 K# J6 {; _- Omxcd.cbDetails = sizeof(vol); 8 L" F$ _- F6 s+ S+ m
mxcd.paDetails = &vol;# R% `; j: v0 Z3 K
mxcd.cChannels = 1;
5 z, _4 W! s/ D1 g, ^, s) F+ x0 ?4 Sif(mixerGetControlDetails((HMIXEROBJ)hmixer, &mxcd, MIXER_OBJECTF_HMIXER|MIXER_GETCONTROLDETAILSF_VALUE))
$ @9 v& M7 r" t3 Dreturn -1;
+ \9 h% P/ V1 ]; d- M" Wreturn vol.dwValue;
1 D. {* W; s# `/ D+ w) ? s} </P>3 i- R! h1 B+ t; i; {" c7 N& ^5 N
< >//---------------------------------------------------------------------------
+ _# X% Q; w, n$ tbool SetMuteValue(HMIXER hmixer ,MIXERCONTROL *mxc, bool mute)
) |( D" r2 D0 K! b- N x{ ) [' E: {. x% `! G3 t
MIXERCONTROLDETAILS mxcd; 4 ^/ X d- y8 F( j, n0 w5 k- M
MIXERCONTROLDETAILS_BOOLEAN mxcdMute;mxcdMute.fValue=mute; . \& T. T4 I) z- V9 F X, z: B1 q, Q
mxcd.hwndOwner = 0;
j& v; o0 u6 `& q6 r8 r' g$ F Emxcd.dwControlID = mxc->dwControlID;
5 G0 m: T& f V5 r8 E" \3 Wmxcd.cbStruct = sizeof(mxcd);
1 i5 n4 W3 G0 }9 T0 d$ h6 cmxcd.cbDetails = sizeof(mxcdMute); " F" a6 N8 r$ ^/ d
mxcd.paDetails = &mxcdMute; 3 ^( u4 ?: R. O# e: V
mxcd.cChannels = 1; % J+ f c& j0 Q- i' N! {% |! T% W' L: J
mxcd.cMultipleItems = 0;
+ d4 s8 |# s0 r) iif (mixerSetControlDetails((HMIXEROBJ)hmixer, &mxcd, MIXER_OBJECTF_HMIXER|MIXER_SETCONTROLDETAILSF_VALUE))
1 e, k! ?6 Z; a K3 ~$ X: oreturn 0;
( \ M% z6 _! freturn 1;
/ j X% F( e# H} </P>+ d% u6 F: R5 w
< >//---------------------------------------------------------------------------</P>
$ O0 d2 ~6 N7 L4 x8 {# `< >bool SetVolumeValue(HMIXER hmixer ,MIXERCONTROL *mxc, long volume)1 s$ F7 k2 ~) N; C: m! X5 @ Z+ a* ~
{ , \ c. R- f7 p# I- @
MIXERCONTROLDETAILS mxcd; ) z0 [* {; o. n
MIXERCONTROLDETAILS_UNSIGNED vol;vol.dwValue = volume;
$ _; _9 v3 D! n( ]) Jmxcd.hwndOwner = 0;, F' t5 o' H4 [$ T' s) [/ i0 f5 A
mxcd.dwControlID = mxc->dwControlID; 9 Z% ~6 p$ O; `, [8 _, M4 r; r n: X
mxcd.cbStruct = sizeof(mxcd);
& j% S, P" x3 [, ]mxcd.cbDetails = sizeof(vol);
8 R& z3 c4 T+ v5 ~2 E. h* Zmxcd.paDetails = &vol;
- p! \5 ~: N: g8 c* P( P7 omxcd.cChannels = 1;
a d8 h6 M$ ]/ rif(mixerSetControlDetails((HMIXEROBJ)hmixer, &mxcd, MIXER_OBJECTF_HMIXER|MIXER_SETCONTROLDETAILSF_VALUE))
" l( K% y# n8 @4 G7 Ereturn 0;/ r2 }! T y* }2 h# F
return 1;
8 m O0 |/ y8 g* o! G} </P>
3 p0 o* G' }3 Z< >
! r5 J) S! X) P% m: [//---------------------------------------------------------------------------: e1 b. ]0 A* N1 {$ ?$ E* I; M3 ?
unsigned WINAPI GetVolume(int dev)//得到设备的音量dev=0主音量,1WAVE ,2MIDI ,3 LINE IN' F2 {3 v) V# W0 f
{</P>
+ x0 D7 S+ ]3 Z' U9 t, W< >long device;unsigned rt=0; 7 l- V8 X9 y4 O2 u% ~$ }( P* F( S
MIXERCONTROL volCtrl;
3 q( T7 y3 p0 h/ n' u. HHMIXER hmixer; + ~( C& V) E# W/ y( y/ ]1 s
switch (dev)
, `7 Q: t( S9 D, C3 y' J{" n+ _0 X+ v' U! c- D7 ^7 r R' K
case 1: ) C2 D1 [+ Y- h( v+ G# H# _
device=MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT; break; ) q8 W- U; k3 w- q* d% l1 _
case 2:
: W& A; i; J! E2 Q2 t* r8 rdevice=MIXERLINE_COMPONENTTYPE_SRC_SYNTHESIZER; break;
& ^6 Y- ~/ u( {2 T' ]; h1 K, icase 3:
) E5 M. [5 a' [, ?* m// device=MIXERLINE_COMPONENTTYPE_SRC_COMPACTDISC; break; // cd 音量 # q7 [8 y$ z$ ^! S3 R! A
// device=MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE; break; //麦克风音量
7 Z% ?+ Z# S6 d/ M i, Y$ ?. C// device=MIXERLINE_COMPONENTTYPE_SRC_LINE; break; //PC 扬声器音量
/ Y% A6 O4 d/ W/ {6 i2 h/ adevice=MIXERLINE_COMPONENTTYPE_SRC_COMPACTDISC; break; </P>
, z* o7 G4 M; d& S; h# ^9 U/ ~! ]< >default:
& ^5 W, b& R' Tdevice=MIXERLINE_COMPONENTTYPE_DST_SPEAKERS; ! c# ^3 i2 X7 L0 [3 s
}</P>+ o: G' G$ ~' i0 n, `
< >if(mixerOpen(&hmixer, 0, 0, 0, 0)) return 0;
; P( Q. d* [* g; Fif(!GetVolumeControl(hmixer,device,MIXERCONTROL_CONTROLTYPE_VOLUME,&volCtrl))
" T) N" p% t' p% ireturn 0;
4 P4 d+ G9 w& n5 j qrt=GetVolumeValue(hmixer,&volCtrl)*100/volCtrl.Bounds.lMaximum; J- H Y1 x1 ?3 e- w: b
mixerClose(hmixer);5 m! g$ [4 e' b6 z, [: D d5 N" a
return rt;</P>2 z R9 C+ I& ]5 o' M( T! \
< >}</P>
/ ^ ~& T0 k$ D: t( q< >//---------------------------------------------------------------------------</P>
8 R7 _, w) f. K: v) n2 }: ]4 [< >bool WINAPI SetVolume(long dev,long vol)//设置设备的音量; b% Q o, W- ^; y. ]( ^6 z8 h
{. Q7 `* |. S/ l% e9 \, W, o& _( [
// dev =0,1,2 分别表示主音量,波形,MIDI ,LINE IN
) J- X! v6 W9 G& C// vol=0-100 表示音量的大小 , 设置与返回音量的值用的是百分比,即音量从0 - 100,而不是设备的绝对值
, c* w0 H6 g. o: r: R: c* F( V// retrun false 表示设置音量的大小的操作不成功
- j; y# r$ K2 ?/ o( P+ i// retrun true 表示设置音量的大小的操作成功</P>3 B O. ~: ]" j0 @8 w6 K7 q a) l
< >long device;
) h$ o M1 U S; vbool rc=false;
4 ]) U5 `6 Z3 {7 UMIXERCONTROL volCtrl;( ]: S2 X% ]+ t9 X& F* @
HMIXER hmixer;" X8 p7 G% [0 w( z* j0 M/ T
switch (dev)7 X0 b0 W1 x7 D
{
; C( M( p9 m8 k3 L8 Z4 ]case 1:9 v) H8 E% A i
device=MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT; break;
* ^; Q2 R2 H6 p. n! P& n4 L4 |case 2:
* I; E0 w, i/ N# P3 N9 p9 ydevice=MIXERLINE_COMPONENTTYPE_SRC_SYNTHESIZER; break;; U1 t. R6 {1 `* G% V/ n( J: s
case 3:1 W# B' C r b( ~) ^4 |* n0 V
device=MIXERLINE_COMPONENTTYPE_SRC_COMPACTDISC; break;</P>
2 i( N, ], o! j9 V( D. M< >default: & z- J9 K& f$ c' ]
device=MIXERLINE_COMPONENTTYPE_DST_SPEAKERS; . v& r4 J9 c) ^
} </P>, w% [* A" F0 Q( |. N) J
< >if(mixerOpen(&hmixer, 0, 0, 0, 0)) return 0;</P>. o3 e: V$ y, o2 G5 \
< >if(GetVolumeControl(hmixer,device,MIXERCONTROL_CONTROLTYPE_VOLUME,&volCtrl)) - _9 X T6 ~- _
{ # O" `# x5 v; l) v3 J* |
vol=vol*volCtrl.Bounds.lMaximum/100; ) T7 h* H; `# @
if(SetVolumeValue(hmixer,&volCtrl,vol))4 Y( U; S' {4 C/ Y) d8 w' l
rc=true;* f: i) {4 v* @
} ' g* O. m0 r+ \- x' K
mixerClose(hmixer); 1 t$ I$ f& z) F$ t* }
return rc;
, g, s/ r/ A7 b% q& K# t3 Y% p} </P>! h/ E0 a5 F4 h$ o9 `6 c
< >//---------------------------------------------------------------------------</P>2 }& _+ j! q0 C' A1 q3 a! h' h
< >bool WINAPI SetMute(long dev,bool vol)//设置设备静音: B7 F7 p! j. I
{
- Q. R0 m1 r1 `- t3 T2 g// dev =0,1,2 分别表示主音量,波形,MIDI ,LINE IN! r8 R4 O& u( s8 o( F/ L
// vol=0,1 分别表示取消静音,设置静音7 N6 a7 B$ l1 R4 k9 `1 {0 K
// retrun false 表示取消或设置静音操作不成功
2 Y1 F) ?' V! E/ u: E# o// retrun true 表示取消或设置静音操作成功</P>/ Q0 y7 ~3 |0 G9 l/ Q
< >long device;* Y6 ^! g& c3 \% u; t& {" s0 P* i1 N
bool rc=false;
* c! O* q# L, r* k( S; t& v5 QMIXERCONTROL volCtrl; v' F Y+ }1 [( w2 g% }2 e
HMIXER hmixer;
/ A( X* v6 u; Fswitch (dev)
7 }6 @8 P* m/ A8 D$ S{/ Y% N3 O- `5 }- \
case 1:' M. U1 e0 P# M7 p' f
device=MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT; break;
5 I( P2 `# M, I7 `9 d( Dcase 2:. H+ \* F) c0 v9 ~/ t/ i+ E
device=MIXERLINE_COMPONENTTYPE_SRC_SYNTHESIZER; break;
) [3 _* s5 i1 n9 T [9 ^! Kcase 3:! |5 r* Z! D% x! a! p3 z7 m
device=MIXERLINE_COMPONENTTYPE_SRC_COMPACTDISC; break; </P>
# ?3 f7 _9 j* J# t( X: D- h< >default:
% I6 i: H* Z* u+ [" e! ~device=MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;5 X8 _. i& F: e/ u5 i, r
} </P>+ y" `+ T8 o6 i% \* a: q
< >if(mixerOpen(&hmixer, 0, 0, 0, 0)) return 0; * g) V/ H2 ?1 y1 V- I
if(GetVolumeControl(hmixer,device,MIXERCONTROL_CONTROLTYPE_MUTE,&volCtrl))
6 ?* l6 {3 l. s9 i3 b/ k" T3 Q5 Oif(SetMuteValue(hmixer,&volCtrl,(bool)vol))
+ z7 q' n7 s4 t, Brc=true;
7 r6 N2 Z9 {& t( E" b3 C9 \mixerClose(hmixer); @4 `- [6 M" i8 B
return rc;& a2 Z) z# C g H/ z
} </P>' v+ i# _$ \% U; a4 p2 S
< >//---------------------------------------------------------------------------</P>, }0 \) }7 A, q- T/ S; J; G
< >bool WINAPI GetMute(long dev)//检查设备是否静音) W$ Q) l8 [7 s9 V3 _" A
{) }$ O, {! g/ V3 v# w. y* v
//dev =0,1,2 分别表示主音量,波形,MIDI ,LINE IN
' ]! `! B. Y) Z0 P// retrun false 表示没有静音
0 k# u- U2 Y2 D' n5 R5 g// retrun true 表示静音! J$ A- R* N! Y# E. N% D
long device;
6 Y' ?0 N3 A, G2 w! h2 _& Obool rc=false;
# m J! ], l0 ~) I& YMIXERCONTROL volCtrl;
3 @7 J* N) U/ p+ C vHMIXER hmixer;
9 R; K* @0 u! |" Fswitch (dev)
F# }; X5 I {$ M1 }. `{5 y! k; X) @# c9 p3 e
case 1:
( y0 B, S8 c4 V9 ]1 ~7 K9 ]% X2 ~3 Odevice=MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT; break;
# M i4 y5 ~0 _7 Dcase 2:" u4 w6 m6 ` d# W
device=MIXERLINE_COMPONENTTYPE_SRC_SYNTHESIZER; break;
$ _2 H: U, N+ n3 O" Ccase 3:2 N0 `: j0 }9 T( V
device=MIXERLINE_COMPONENTTYPE_SRC_COMPACTDISC; break;
, f; [1 ], { M- g3 | t( vdefault:& q3 [9 Z* f' D& G
device=MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;$ x/ P1 Y* M# S. H' A( x% x6 W' t
} </P>
9 V2 r! @( e/ {7 D/ J< >if(mixerOpen(&hmixer, 0, 0, 0, 0)) return 0; </P>7 \) W6 m, O# n& Y5 ]" b1 I
<P>if(GetVolumeControl(hmixer,device,MIXERCONTROL_CONTROLTYPE_MUTE,&volCtrl))
8 g. V2 v* n/ q5 xrc=GetMuteValue(hmixer,&volCtrl);; k" c5 R( z7 H7 o
mixerClose(hmixer);3 u) l7 G+ @' `5 m. K( b3 p
return rc;</P>$ x4 m7 f8 j7 S* k
<P>}</P></DIV># ^: Y, ~! a, e# d: h/ s# i
<P><b><EM><FONT style="BACKGROUND-COLOR: #fdfddf" face=Tahoma>上面的存为SoundControl.h</FONT></EM></b></P>
* `- E, J0 a) h4 p1 E<DIV class=HtmlCode>
0 m8 Y4 p- T( N+ n7 t% H! m<P>#include <vcl.h>
% V; i7 T* O9 U/ F* @#pragma hdrstop
# \2 R+ c" f: W' {4 P#include "SoundControl.h"
# x9 c; b: ~' I6 _#include "Unit1.h"
, V3 Q0 R0 Q' b/ V//---------------------------------------------------------------------------: a& C0 a' x2 K8 Z
#pragma package(smart_init)
, w4 w$ A1 h& D) a+ Y+ T#pragma resource "*.dfm"3 o/ B: j8 X. a3 f# ^7 v
TForm1 *Form1;' ~8 |1 G8 L* d% y& x. i% Y5 d
//--------------------------------------------------------------------------- o7 I, ]4 e4 n8 D
__fastcall TForm1::TForm1(TComponent* Owner)
/ m; _& Y; C, I) \- x : TForm(Owner)
5 v" u# z9 b# g! u{</P>. V) L* g" Z. t" t, W1 G& }
<P>}</P>
/ ` U; ] i. O% h9 y<P>void __fastcall TForm1::CheckBox1Click(TObject *Sender)' _( G/ {. m1 q; {
{
6 \. a2 U8 n `$ ^+ P4 zSetMute(0,CheckBox1->Checked);
9 B" G! K6 \/ D' {% t}, R% M; e& Q9 ?
//---------------------------------------------------------------------------+ e; ^8 x: E/ w. o" Q/ s
void __fastcall TForm1::TrackBar1Change(TObject *Sender)
6 n4 v% ^' ~& z. N9 P8 q{/ Z3 C% L$ n! j- a/ @, S
SetVolume(0,TrackBar1->Position);
+ ^. A' m+ `% V3 w* q$ t& T}
+ {/ r/ r, q1 E3 l6 v) A8 M9 Qvoid __fastcall TForm1::Button1Click(TObject *Sender)
' Q: U; x9 w% P+ L{
L3 x$ p1 [; H TrackBar1->Position = GetVolume(1);
, \6 f# D& y& O" Q$ G+ _; [; V}* X9 e N, Q' u
void __fastcall TForm1::Button3Click(TObject *Sender)
8 g. ~& l- Z1 {# q( S+ t0 V{, @$ p& s# S4 u5 z* {5 f5 j3 I3 u
CheckBox1->Checked= GetMute(0); a/ D% I7 }. ]( G( p. g0 w
}</P></DIV> |
|