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:. r: r! M% I! @, Q) j0 M
Name = (WCHAR *) L"Poke";* _6 S; S. \6 g$ k# P8 q* v. K( X/ s
+ ]% Z; `1 B9 B; G# E4 ^% U hr = m_pDisp->GetIDsOfNames (/ u* \! o3 W4 @: m: U6 C% o
IID_NULL, // reserved; c* T) ^& V( T! a! D, f3 u" H5 s* x
&Name, // Array of names to get IDs for 5 }/ H" Y; ]$ P( F; k/ R 1, // # of names in the array& r6 L0 i$ q5 P) K# R
LOCALE_SYSTEM_DEFAULT, // System locale$ y' n! w$ X& m/ D2 C
&pokeID); // Array of IDs to fill on output 3 o b7 |. L) t3 c- f" K r 8 K2 g/ |6 }. w( a* p/ B/ v1 ~) L if (hr): _# _7 t$ b' B- w
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MessageBox ("Get Poke Unsuccessful"); 9 V. {9 J5 X+ m" h return;$ r1 M) s7 g- t6 q
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4 [/ L' H7 i( U- s1 C) @+ b/**************************传递数据给extend**************************************/ ' f4 f% _; U7 A% T pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ K \) ]7 b8 q" T! k( F
4 d4 Z5 ~+ v" p: e$ Z% I9 i1 b! r valueStr = SysAllocString((WCHAR *) L"1232"); 8 n1 g% u2 `7 U# H- s5 { VariantInit(&pokeVariant[0]); # z3 `) r8 H! W) c+ A pokeVariant[0].vt = VT_BSTR;5 d' \, y p N3 l- K! ?
pokeVariant[0].bstrVal = valueStr; 3 N- V1 Z/ I$ _% g0 h* p p( \0 A 0 m4 ` b7 b2 W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 {" B# R6 r) ]9 D1 z! o VariantInit(&pokeVariant[1]); " n! _. ]3 ^( [ g$ l% N" r+ M! H' Y% g
pokeVariant[1].vt = VT_BSTR; ( v9 _" V( Q) ~( { _* s pokeVariant[1].bstrVal = itemStr;2 W( q( r! [9 L3 O- Z4 s3 y
$ p! R+ k. S- e- P+ o4 } topicStr = SysAllocString((WCHAR *) L"system");# W' d0 R; X. `1 t% ^3 B3 x
VariantInit(&pokeVariant[2]); 6 i, l# R# v) D6 u0 |, |
pokeVariant[2].vt = VT_BSTR;% D9 H, R- m$ Q
pokeVariant[2].bstrVal = topicStr; 1 ^9 R6 `8 h) @( f- E 3 }8 v+ H5 B3 ^0 G3 T2 D Z, j// Set the DISPPARAMS structure that holds the variant. q1 C, c' ~, B+ \. p0 k; B 0 g) [( Z2 _/ e2 q dp.rgvarg = pokeVariant; , P; P& M- Z* S, H0 n dp.cArgs = 3;0 o7 [& n4 Q2 z9 m( q
dp.rgdispidNamedArgs = NULL;( y1 S5 a. {0 b: n6 v! D
dp.cNamedArgs = 0;9 [& H) Z5 S- n) o
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// Call IDispatch::Invoke() ) q. J9 U9 C5 b2 ?2 k$ W- V7 | 7 a) X( |% t9 u5 W hr = m_pDisp->Invoke( 2 ~, A3 N7 U `9 d5 n1 x+ W pokeID, 8 M) L% a; X. F: b5 p IID_NULL, ) H/ g5 }; ]; {4 ?& e5 h" i- ~0 S LOCALE_SYSTEM_DEFAULT, / h& g& d' g" Z3 y9 r9 R) U6 x% a DISPATCH_METHOD,/ l0 |/ s4 R o3 K/ J8 h
&dp,/ T( s: h; Z9 L6 A9 C/ v7 ~% c9 V
NULL,$ R6 z& k) B/ V9 x* `
&ei,; N* z% ~" e+ n; S
&uiErr); 8 ^+ H! ]8 r- ?9 ? % B) L# [ p, k( Y( x: F3 {1 v, I SysFreeString(topicStr); D4 Z: L! Q( u- Y% z SysFreeString(itemStr);, k9 r: P, N, l, p$ [
SysFreeString(valueStr); * l- M' `+ d6 s, n: Q: T" w 3 U+ D E$ s& @. }( Z% @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???' C% i- p8 Z/ O" y$ U3 D8 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????2 B! V% {# U+ p- j$ q5 K
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2.这是request的程序# v! F# l, i) J& M
// Request a value from Extend% A* K! x& T0 ~* V- ?% @$ _
//7 }: R- Q7 `- S" R8 X+ ^
// Initialize the variant that will hold the BSTR. Set the variant's/ m. i2 U1 c% |, ^1 s! K4 k% j: K R
// type flag to indicate the fact that this variant holds a BSTR. Place the / B9 M X5 @3 q$ T& J( G/ [1 J4 T! |// BSTR into the variant structure. - T2 l6 u; R' k3 o / D% |) U: Y8 n) ?1 u( _; ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# d- d; e6 n! L
& Q. S9 _' b. p+ i) Z( Z# Q7 ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 F7 p3 i4 @5 j M- L
VariantInit(&requestVariant[0]); . A- b7 V( L$ i/ {, n I4 h requestVariant[0].vt = VT_BSTR; , t0 p8 j9 X# N9 [" o% E requestVariant[0].bstrVal = itemStr; " a; M/ r( d2 y. b, N" ]: C; A$ D0 f1 l. V! m4 ]
topicStr = SysAllocString((WCHAR *) L"system"); " {7 f7 {0 H) D5 ^' [2 w+ Y, v9 q VariantInit(&requestVariant[1]); / F7 _7 U& Z y2 H7 e. ~4 m4 i! p1 t
requestVariant[1].vt = VT_BSTR; / F1 i2 _' b& F+ u requestVariant[1].bstrVal = topicStr; * H" f! b% B: f$ J8 c O1 ? 6 F" V! n0 i8 L; ]: y+ s9 J// Set the DISPPARAMS structure that holds the variant.! i+ c# J3 I* c% A5 t
. B1 x/ w# O+ o, p dp2.rgvarg = requestVariant;% l: J* i4 ]& T
dp2.cArgs = 2;0 ^: T8 R, B7 k
dp2.rgdispidNamedArgs = NULL; $ B! t" R N5 y' C7 d& A dp2.cNamedArgs = 0;+ g+ _: J. K; h# [5 o
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var.vt = VT_EMPTY; % b$ ]3 a/ H- H) m' d' Z2 d% A2 G8 C/ J* z! e2 S
// Call IDispatch::Invoke() 2 t( Y2 K# s |$ |* t9 K4 b1 Z7 d) G+ {
hr = m_pDisp->Invoke( % P+ j6 w6 z% e$ U requestID,# x1 t$ I Y" J6 h$ V( T
IID_NULL, 1 s9 n6 U+ O: h% `* W0 Z, r5 f' f LOCALE_SYSTEM_DEFAULT,3 {6 {6 Z' p+ w! |6 `. S
DISPATCH_METHOD,9 I% M% ?7 \# o% n( U+ [* N
&dp2,5 ^3 V9 e2 J, V* a4 n: B" T
&var,' Z" u3 S$ S0 }" x
&ei,$ q$ M6 d A1 K/ N0 y% ~
&uiErr); 2 j$ K& V6 j+ L( \( F0 s 4 r& a# C! o0 | SysFreeString(topicStr);! O! d; T' K6 K. o* } X' T- m
SysFreeString(itemStr);7 V" J3 [) [7 k7 p% }
请问该程序是获得extend里面的哪个值?& B/ `- e) U( v, n! B6 V, T
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????