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:. ]( \) W) Z! T" I2 w: q1 ^7 I, {
Name = (WCHAR *) L"Poke"; + U5 Y+ w; \/ D . q2 T+ w# N7 c! y3 R hr = m_pDisp->GetIDsOfNames ( 9 V2 J7 q r% m. s IID_NULL, // reserved# V5 n6 y' Y! m) z+ A" O. w
&Name, // Array of names to get IDs for / I! o4 O9 c- Y' t9 M 1, // # of names in the array, I& Y9 a/ _% q0 n4 w
LOCALE_SYSTEM_DEFAULT, // System locale ; Y3 b# T, B% _0 U- N &pokeID); // Array of IDs to fill on output+ z& @1 l& w" P
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if (hr)+ K( _3 x) {1 A+ q: I# T
{ ! V W3 R% w5 }" Z8 |# ?" l MessageBox ("Get Poke Unsuccessful");5 P- R6 g0 _- f$ R) |% U; l
return; $ x1 m: I& n/ p5 e* G3 ?) u) A& D, ~ }7 @- S& n* M: b
% n4 Y0 q$ B1 @! H/**************************传递数据给extend**************************************/) X! Z7 ~8 `+ B- \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " Y3 j6 s* X: x' u 4 Z+ t# f" W0 S0 f' N valueStr = SysAllocString((WCHAR *) L"1232"); & G2 g# d9 p$ K9 y5 L, Y VariantInit(&pokeVariant[0]); : m* v9 _: Q8 m% ^; | pokeVariant[0].vt = VT_BSTR; * d' T" W! r0 [, z pokeVariant[0].bstrVal = valueStr; / n: _& a9 b& P& ]5 ~, P& F( g2 \. B" i$ O" g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' `; F) N$ K5 I! Z# ] I, @& P0 k VariantInit(&pokeVariant[1]); 0 [# d) c7 _7 ] pokeVariant[1].vt = VT_BSTR;# W4 Q- F) W7 f( q
pokeVariant[1].bstrVal = itemStr; # t. d) Q% n7 A! r/ D* G% J" N % @; Z m! m3 U- A topicStr = SysAllocString((WCHAR *) L"system"); 6 F+ x7 X1 ]5 g8 t3 s: W- o, { VariantInit(&pokeVariant[2]); ! ?' U: k+ h6 F; ^
pokeVariant[2].vt = VT_BSTR; $ w/ q; u# m# B/ n pokeVariant[2].bstrVal = topicStr; ) e$ l E7 R( p' n' U 9 r$ o6 D1 q; ?1 e# G// Set the DISPPARAMS structure that holds the variant.% P) I2 e% e. [5 B5 K
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dp.rgvarg = pokeVariant;9 ]) U+ {$ `7 b: t
dp.cArgs = 3;8 T6 Z1 J' n! R5 A+ c8 g" ?
dp.rgdispidNamedArgs = NULL;8 p) m( K; o. `1 {4 i
dp.cNamedArgs = 0; / A! H/ | E' I* W0 b8 @3 z/ U( x& L5 q* E
// Call IDispatch::Invoke()* K, }& j, \4 i6 S2 ?4 ]' q
% A; v8 e _: l' k; d/ l6 O: C6 r hr = m_pDisp->Invoke( 8 Y( I5 Z: d. W M pokeID,: s1 Y. d6 n5 ]" p3 w. y* R
IID_NULL, 8 r$ V+ S; ^# o+ l' c& m LOCALE_SYSTEM_DEFAULT,, F" s4 l9 L& E A# E+ K7 C
DISPATCH_METHOD, ) `, L$ w' j1 X: p$ C$ ~8 y &dp, # T4 g& r% u$ }- j4 O NULL, 0 J, N h) t0 b/ N, h9 C &ei, / D6 S* s7 f1 B$ m: \0 ` &uiErr);% ^, D. V9 A1 k% P! B
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SysFreeString(topicStr); / D% B; c$ ?" L! a$ l% b SysFreeString(itemStr); & {: [% u0 V6 W) d- Y/ G3 P# U c9 _ SysFreeString(valueStr);; ?0 }$ j" t! ]2 e1 Z! [1 T
3 N7 E& k2 N# c2 M3 b) o h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???* y l; f* P; e+ l% M! g
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???? 5 ]; I( `; }' z- Z/ T( g& V% m" }" |3 t
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2.这是request的程序3 I9 ~9 S6 {. l4 S
// Request a value from Extend! [, F% c) i# l
// / x# t e$ d8 o% |+ s8 l# l0 \// Initialize the variant that will hold the BSTR. Set the variant's 2 @2 `, L+ K+ ~# B" ~9 k# S// type flag to indicate the fact that this variant holds a BSTR. Place the 2 a# P; `8 v m5 j6 Y, j// BSTR into the variant structure. % l6 @6 b3 z" B$ p6 x, k+ N- V; M* D* ^& |* }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . M8 S3 m& T8 ]2 Q% U ( m% Z, `( C6 p1 E9 p7 ?6 S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) ^" H" r: S N( |0 F2 v VariantInit(&requestVariant[0]); 7 l. ]& s& I* U* `
requestVariant[0].vt = VT_BSTR;8 Y2 s" f5 u# h o
requestVariant[0].bstrVal = itemStr;" n+ j d: q! H+ }. d' ^3 N/ U
2 r% _: ? @1 K1 u' L* c [ topicStr = SysAllocString((WCHAR *) L"system"); 4 e2 L* F2 j! Q" h E3 n% f VariantInit(&requestVariant[1]); ! K! a: m- [6 P) e6 X0 U3 W& ~+ ?
requestVariant[1].vt = VT_BSTR; ! Q0 f7 T# U# U/ }) F* t requestVariant[1].bstrVal = topicStr; 8 z7 X0 y* Q/ Q+ q6 `7 n/ P& K ; N& j- [6 T7 H* d, e3 [) L// Set the DISPPARAMS structure that holds the variant.5 N& _6 `9 s+ \# M E- f5 J
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dp2.rgvarg = requestVariant; 7 v; U! `7 N% G dp2.cArgs = 2;% s- f3 x7 l/ l+ \% r
dp2.rgdispidNamedArgs = NULL;( a$ d y( }3 q2 A+ h
dp2.cNamedArgs = 0;2 U( M3 d; D, s3 G+ i$ {
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var.vt = VT_EMPTY;: v4 j5 U+ e* q: N; B9 v6 n4 y
5 p0 J3 @9 O) H) m// Call IDispatch::Invoke()* ?" k: Q) _6 u4 ~
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hr = m_pDisp->Invoke( ) V/ d( y, v& N; I' i2 g) V: \ S requestID, 3 L; \3 k3 ?5 e( [$ } IID_NULL, ' W4 z3 {* v+ ^5 r LOCALE_SYSTEM_DEFAULT,- h+ u+ H; _# b" e
DISPATCH_METHOD,# ]% w. o S* \( n; f
&dp2,1 M, `% y9 ~1 w- n" U, B
&var, 7 T2 b8 C( w$ T% a* P# E &ei,# }5 ]5 A+ [8 @8 W s$ W9 q
&uiErr);: f. V- q# N* B& C
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SysFreeString(topicStr);' i3 Q7 }5 r: ~* ~& E% f) W$ x5 i
SysFreeString(itemStr); 6 M' p( i5 f1 b6 ~! z4 g* {请问该程序是获得extend里面的哪个值?& }* T/ ^& f, O& `5 T2 W
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????