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:0 t0 s$ O$ \- D. f
Name = (WCHAR *) L"Poke"; 1 x: ?: F3 i$ i+ P 4 V, g2 c( z! P+ I hr = m_pDisp->GetIDsOfNames (3 X7 o- f7 R$ ^' L% ]0 I
IID_NULL, // reserved 7 E# {5 @; S. o! X8 Y: |3 n* x2 H6 b &Name, // Array of names to get IDs for 7 r* \6 d+ U- N& J/ b) J 1, // # of names in the array - _5 C j* N" ~4 {) w LOCALE_SYSTEM_DEFAULT, // System locale( h" x( r2 a4 B/ T% v; t/ b
&pokeID); // Array of IDs to fill on output 7 Y# O N) v/ M8 _5 [ + \5 {2 Y1 ] }' x3 B( ?6 j
if (hr)5 U$ F1 y$ Y$ \; D* \9 u: ~. i
{ 4 O! I3 i/ b8 l- s8 o, Y' _, P MessageBox ("Get Poke Unsuccessful"); & e& U2 Z3 I7 F' M7 n& w0 o return;) p f5 x& c, U% r) i) t7 B# U
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/**************************传递数据给extend**************************************/ b; }# i6 h5 E$ U, }- Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 x, y, ]7 v. a / w1 C' [* A. Z$ q' K1 R
valueStr = SysAllocString((WCHAR *) L"1232"); + o/ w! ^+ d0 k2 Y- x* Y6 }* Q5 I7 r VariantInit(&pokeVariant[0]); ( S" }+ b0 f% j1 k" {
pokeVariant[0].vt = VT_BSTR;! ^7 a3 o: b0 ]1 _
pokeVariant[0].bstrVal = valueStr;/ J% |0 z& i' Q2 m+ v; W
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 e v/ Y9 R! L. k6 |- P) x. Z V# @
VariantInit(&pokeVariant[1]); + D. f+ U* R7 V# S% _5 R5 o5 w7 q+ e pokeVariant[1].vt = VT_BSTR; : n- j u( ]/ W# a pokeVariant[1].bstrVal = itemStr; / O2 [" W; F' `# P. k7 l% r ' g# w7 J5 t" x topicStr = SysAllocString((WCHAR *) L"system"); 8 E2 n4 w7 d8 n& U/ u8 \ VariantInit(&pokeVariant[2]); & k4 m( C7 z, }( e, G pokeVariant[2].vt = VT_BSTR; 0 m8 A- \0 Z& N+ ?; ?7 I( Y5 I pokeVariant[2].bstrVal = topicStr; , H/ d7 h8 u$ B* g- y* f" U/ P* E 0 p8 W5 h2 \: d" a7 _$ v1 F2 u$ S// Set the DISPPARAMS structure that holds the variant.5 @5 j8 c5 I9 X) O& s! \
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dp.rgvarg = pokeVariant;% c$ F8 v7 x5 x" C! [5 G' k
dp.cArgs = 3; ) h1 Q( W9 R& ~) H1 m dp.rgdispidNamedArgs = NULL;8 S8 w2 b3 r6 H0 s- y8 z
dp.cNamedArgs = 0; ' a/ U8 H9 l/ U3 e1 G: e7 I+ b2 a3 Y% o4 R! z+ \
// Call IDispatch::Invoke() 3 O& P ]9 u8 [/ Z h( _2 I- C Q- ?6 G& @
hr = m_pDisp->Invoke( - m- U, u4 I b& K( T- m pokeID, 6 x, Z# m$ A1 M$ M+ O8 V2 A IID_NULL,6 c4 _/ ^- ?* k0 z& w. u/ p6 k
LOCALE_SYSTEM_DEFAULT,8 a6 e) H/ k% J1 K$ o1 I
DISPATCH_METHOD, * H! w Z+ L# l &dp, & j8 a' I, P( i NULL,4 ~9 O. q- R! |$ }$ L3 w
&ei,- N. n& `7 D* n8 N8 H* {- k9 B+ o
&uiErr); ; t0 u( o/ b/ J* h8 y5 P& W; q1 Z" F. I9 f1 T8 @& s: U' r9 O
SysFreeString(topicStr);% L6 p {+ E) ~0 p* q0 [( c
SysFreeString(itemStr);+ x( w+ Z5 |- C2 e
SysFreeString(valueStr);8 y* p4 T" N" Y, w) S6 T
# q) g+ t2 a* t" }7 Q5 D# K! }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??? 2 P7 U) t! q3 f$ T+ q; r0 l+ }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???? : q" t5 A% j( A9 |5 Y8 j9 f) ^) X4 ]: n3 X9 R
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2.这是request的程序, i% x+ J5 p! M- D
// Request a value from Extend , G' B/ X4 f' o5 d) E//, c8 Q+ ?1 _: P1 V- T1 s
// Initialize the variant that will hold the BSTR. Set the variant's3 h$ K$ \& Z9 j9 J
// type flag to indicate the fact that this variant holds a BSTR. Place the) V7 n0 B: E8 F" d7 I) g
// BSTR into the variant structure.! t( w' d3 D# ?8 L
2 c( b6 ]9 q' l; e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ `' t; Z( S1 V- n9 K
: b7 H* p* @# ?4 y( x3 o& I, G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 m3 z: Z1 k1 u
VariantInit(&requestVariant[0]); 5 F. @' C/ ? d1 ~% \0 y* e
requestVariant[0].vt = VT_BSTR; 5 { B- ^5 A4 ~7 @& w5 G requestVariant[0].bstrVal = itemStr;8 g4 Z7 o' |9 a6 H X$ c
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topicStr = SysAllocString((WCHAR *) L"system"); ' U7 O# L5 ]- j; n: f1 F VariantInit(&requestVariant[1]); , p }5 C. l1 t7 l% h6 E: r5 l requestVariant[1].vt = VT_BSTR; % X4 B( d/ [% R requestVariant[1].bstrVal = topicStr; % U6 Y- U( `, g2 E! e8 \' s5 O$ {' R) N* t B
// Set the DISPPARAMS structure that holds the variant. @. }3 B0 s' A/ K- s1 V. R
) W0 O" d) s0 C# ~8 Q dp2.rgvarg = requestVariant;! g' y, B) l$ j, V
dp2.cArgs = 2;9 x3 f" L: Y* T9 f' B
dp2.rgdispidNamedArgs = NULL;0 [# Y: `, _( C/ p1 [$ W' H
dp2.cNamedArgs = 0;2 h* n, b0 f) h/ m0 H
* n' {4 {; ]' w @2 Y var.vt = VT_EMPTY;0 f7 O( w+ `' u
# y8 ~( `: x w) z) N// Call IDispatch::Invoke()5 V- M! ]' J& }* h
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hr = m_pDisp->Invoke( L+ s ^/ E( B, G7 A9 x; k requestID, 4 n0 o' Y% m6 r' ~! X6 S6 W. { IID_NULL,4 o b) m1 [! w O& l
LOCALE_SYSTEM_DEFAULT, " R2 `/ \/ J! Z' n: f* @ DISPATCH_METHOD,% {( D4 E2 X( W6 b+ z0 E
&dp2,) K" D; O1 F* R: j* T
&var,: R8 d! g) s2 H0 @7 c3 h/ Q
&ei, - t1 F$ A( [% S8 X% e# x &uiErr); ( l; t' f0 P0 U8 F7 q+ k$ z3 M/ U; Q; p! q7 C, D% \/ {
SysFreeString(topicStr); 9 }5 ]: m# T. z9 d% i SysFreeString(itemStr); / y5 ~/ P, e- m }: w请问该程序是获得extend里面的哪个值? : d% h" i' U& Y. }0 K' k, c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????