我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据:3 O$ W6 M6 f! V L' h
Name = (WCHAR *) L"Poke";+ D6 }9 y/ B! x M4 u9 U ]
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hr = m_pDisp->GetIDsOfNames (6 J: t. }& K [+ k7 C# Y
IID_NULL, // reserved d, ^$ q. ]0 G# t" q8 E) _% C6 x+ O
&Name, // Array of names to get IDs for ( o, b; B3 d. a8 r( x 1, // # of names in the array4 O6 W) [7 U. h8 I
LOCALE_SYSTEM_DEFAULT, // System locale. P, p+ f5 f! c* {1 h
&pokeID); // Array of IDs to fill on output$ F1 f9 w3 |7 K' \
1 N: d f& w$ ]/ a# a: V if (hr) - J* k* i6 ], S { : P, J/ W& c9 g- b1 H& j MessageBox ("Get Poke Unsuccessful"); 4 P8 n* z% I, `; _, B8 h4 L return;2 }" j! K: b; [: U2 F! ]
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/**************************传递数据给extend**************************************/ ; C1 y/ P6 i1 q( H6 g/ l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) C- ~/ i* n0 o) q: v" C) N 5 Y' j" e8 q, ]
valueStr = SysAllocString((WCHAR *) L"1232");7 {7 ?# l% d. y
VariantInit(&pokeVariant[0]); . g- h" @* n3 G' P q0 Q, u% V pokeVariant[0].vt = VT_BSTR;4 @* k4 y$ Q( ? w' g
pokeVariant[0].bstrVal = valueStr;) w4 f0 U7 s/ N; ~
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( S' e4 x" u- B0 h5 J, }) y+ S! k/ V9 F' ]' G VariantInit(&pokeVariant[1]); ) c! U( j {! \
pokeVariant[1].vt = VT_BSTR;: c8 F2 p6 S! f* N4 i" ?- O
pokeVariant[1].bstrVal = itemStr; 9 F( L2 C; E) b4 m: ~3 f2 W2 N, a3 C% z1 o# w, D3 l
topicStr = SysAllocString((WCHAR *) L"system");- ^" }% D! M9 ?2 ^+ ~$ F% n- f* P
VariantInit(&pokeVariant[2]); ! U! B; N, ^# E* d" } pokeVariant[2].vt = VT_BSTR; 6 ?% k7 u0 p; K1 d/ C7 ^+ r pokeVariant[2].bstrVal = topicStr;' O* \: V. g* H# j" g) @6 O
% L# D% V5 k) P F// Set the DISPPARAMS structure that holds the variant. ( _% d* e6 L5 i' h1 j( g8 J * t; U; W h4 W1 G1 Y7 M# Y dp.rgvarg = pokeVariant; ( i$ t( I5 ?$ Y dp.cArgs = 3;+ Y8 N4 R4 Z8 Q/ ^. b( I# t- ?) h
dp.rgdispidNamedArgs = NULL;1 u; Y5 }3 O0 _( S3 ~4 B
dp.cNamedArgs = 0; ( f0 o0 P1 } [) `8 p7 G( @) {5 h6 K
// Call IDispatch::Invoke()4 E! }+ K0 E* J' F+ b- g
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hr = m_pDisp->Invoke( 2 m% `" c. O5 M0 w. h+ P' q2 R pokeID, 9 e+ G+ C) |- u' f3 X2 P) b5 r IID_NULL, 3 _( p1 l3 ?- e1 q0 ?7 L LOCALE_SYSTEM_DEFAULT,. J- ~* H8 _- c* f3 X9 }& k
DISPATCH_METHOD,9 e! c; p( e" ?) _, Y2 z, {
&dp, 5 T0 A0 O \" {+ ~7 K y NULL,+ n7 a/ y( g9 r
&ei,2 F" X6 u! W) I0 ]7 G* H: l+ a9 x
&uiErr);- U: m0 g! B) E. G! D
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SysFreeString(topicStr);" S7 a6 L7 s7 ^3 H' m9 ]2 i
SysFreeString(itemStr);, R6 D$ C! a T) V K. |6 ~# D6 j& a" q
SysFreeString(valueStr); ( b8 E m/ q8 g, e2 P, ]6 ^+ Z' d$ f( f/ F
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据???6 h- `% ~2 `) k
此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????9 p' {# ~6 `+ U" \% P. f
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2.这是request的程序. {% [- W: o9 u2 s( b. r5 O
// Request a value from Extend0 K& {: G, \: w2 s- N
// * f5 Y- ^- R8 Z3 J/ n% ^) m// Initialize the variant that will hold the BSTR. Set the variant's 4 ~- {; G5 a- n \. i// type flag to indicate the fact that this variant holds a BSTR. Place the V1 r8 S! v6 L5 D3 A- C8 p// BSTR into the variant structure. 4 n$ w: p3 k$ n' f 0 d( \7 |& h8 x4 Z: H requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # X7 _# T6 r& X/ G7 q+ m3 F6 C- {2 U1 ] ; a$ ^4 c [, S" n! m$ l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + T' M. ]- J. f( ` VariantInit(&requestVariant[0]); 7 Q: C# A% _2 D requestVariant[0].vt = VT_BSTR;! S' s `+ z W, e: y- b! ]
requestVariant[0].bstrVal = itemStr; ! {+ C3 q- U5 F* B( g5 M" t( p, u; O4 a
topicStr = SysAllocString((WCHAR *) L"system");$ f+ w: b, M4 x- n+ Y% [& f0 [9 N# H
VariantInit(&requestVariant[1]); # Q# M' Y+ S0 L. o, ?2 ~# p
requestVariant[1].vt = VT_BSTR; Q2 a( x6 A3 e: v8 n9 S. E requestVariant[1].bstrVal = topicStr; 1 R4 y8 Y1 k" P1 z- w 6 U0 g: k u, i8 e0 ~// Set the DISPPARAMS structure that holds the variant. : `* J% e% ^5 R: `. H 7 }& L3 Y: Q, w dp2.rgvarg = requestVariant; 4 E4 H9 }- J9 b+ g dp2.cArgs = 2;# S9 H* Y: H$ _4 o5 A8 t
dp2.rgdispidNamedArgs = NULL;: N% k; ^/ h7 Q
dp2.cNamedArgs = 0; 9 i: s9 U1 `8 O, W3 X2 K% b u' O: V9 X7 p( {
var.vt = VT_EMPTY; 8 R3 P4 l) Z" K3 u( A+ j6 }5 Z9 ~8 d/ l& F4 O! U
// Call IDispatch::Invoke() + k9 A8 }, k0 e& i. W4 Z* _) W/ X" ^! H5 W8 S6 T/ H
hr = m_pDisp->Invoke(+ P* p! Z( I3 U/ W; x& @
requestID,3 V$ i& Y+ J1 N4 I% g& i3 T
IID_NULL,$ t, n- F5 e l k0 u# z
LOCALE_SYSTEM_DEFAULT,$ `+ Y/ N- U3 ]$ ~
DISPATCH_METHOD, 2 ?" {. S2 Y% D& R1 F &dp2, - n% K! b$ r7 h" X( u &var,% [ |. r1 w/ H. t2 P7 W: x- a9 ~* T
&ei,8 z) u, [5 K- a
&uiErr); 8 Z, `5 v6 F0 h( }) s9 f$ r1 G7 Z0 {/ Z8 F) g/ U
SysFreeString(topicStr);( u, C, _# _ ^8 r* b8 p! K* S, l
SysFreeString(itemStr); , A* q @( d& N$ V& |; R# G# F* H请问该程序是获得extend里面的哪个值? $ |( u8 h; q) y; W9 `( l+ A. i0 A0 b c5 l如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????