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:6 o8 x& p$ t! |! O
Name = (WCHAR *) L"Poke";9 Q; J$ L$ N' r1 U
9 r* V2 {3 \. J hr = m_pDisp->GetIDsOfNames (5 |0 x2 I4 Q2 j/ y
IID_NULL, // reserved0 Q+ U1 j! `; y* J
&Name, // Array of names to get IDs for- \% s9 U' T' P" I. `7 B" q
1, // # of names in the array. D+ V g7 E$ |7 E v( {" z
LOCALE_SYSTEM_DEFAULT, // System locale : r; o+ I, Z9 n/ j &pokeID); // Array of IDs to fill on output " L2 I( ^1 i! [+ E: f9 q" }& J 6 q" O# Y5 X' v; @. c, o% P, t
if (hr) ; L- F% W9 Q4 c& E { / @8 K9 Z5 p5 U: j7 G. S MessageBox ("Get Poke Unsuccessful");; V" A1 K! q$ U, J( ~
return; : S* Y# Y+ M. k2 I0 z8 C }+ C& l% t+ |( B. F% W
) f1 P$ v. l& O7 O: T' G/ ]! ^/**************************传递数据给extend**************************************/" S. S ]2 o9 k9 H, x' ]# @
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 f. F. c8 I$ J: V
* u/ E2 U$ B) C; p& t' V$ T valueStr = SysAllocString((WCHAR *) L"1232"); ; p1 q2 z3 s4 n# x. z7 p0 r T VariantInit(&pokeVariant[0]); # s; G) T7 t8 l1 q/ j! Q
pokeVariant[0].vt = VT_BSTR;# u: u% _) ~: U4 D8 i1 G6 q
pokeVariant[0].bstrVal = valueStr; 0 d `: ~2 r d 8 |' J" {% g6 i6 E" h7 H# S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / L/ }/ L- {3 _/ U! `: h- k VariantInit(&pokeVariant[1]); ( F$ Y6 Q7 t& w! c* e5 j pokeVariant[1].vt = VT_BSTR; 9 p3 O0 F' x6 p; e" v1 B pokeVariant[1].bstrVal = itemStr; * K1 g# s; g/ r7 t0 P, y7 i9 j! C4 B6 W
topicStr = SysAllocString((WCHAR *) L"system"); 4 m) S; g" O) z ]% ^+ B0 Y VariantInit(&pokeVariant[2]); 9 Y3 B; o, K1 a! }, |0 B pokeVariant[2].vt = VT_BSTR;0 s) B1 x6 U% `( b
pokeVariant[2].bstrVal = topicStr; ) N2 G$ B* M6 c) R$ b% o2 g$ G1 `/ d7 h0 z
// Set the DISPPARAMS structure that holds the variant. % g- c ` @7 C7 p5 O% N 7 C) r* s" S1 ], A2 W2 Q dp.rgvarg = pokeVariant; : ]$ a+ m1 I z& Q dp.cArgs = 3; # L# N: P8 K6 @* L5 t dp.rgdispidNamedArgs = NULL; m" K& G) Z |/ R% N# |1 N dp.cNamedArgs = 0; 9 |/ _; K6 M3 }$ v$ _4 t0 G1 O) v4 S) g" f$ s4 ?8 ?
// Call IDispatch::Invoke() : q! s2 T/ d0 h- j Z! K7 W9 s$ X9 r" k- l2 k
hr = m_pDisp->Invoke(8 Q6 V( X2 g7 F
pokeID, 9 J8 Y$ n9 r) w2 I IID_NULL,0 C9 W2 L; t& h
LOCALE_SYSTEM_DEFAULT,) Y* G5 S* }1 f w# W" M& E
DISPATCH_METHOD, ! H& |' w4 N, l) m- G8 x4 n &dp,% z. d- ~/ V3 F+ H/ y% _/ u
NULL,& n! k$ x0 A/ r( e6 a
&ei, Z+ o8 A! ?6 ]8 G8 B9 _
&uiErr);- f, A6 G1 x9 z, c
2 ?* N I* C) X1 c SysFreeString(topicStr);5 F* o. s: c" F# D" ?. \- X
SysFreeString(itemStr); 3 @/ \ {- ^1 k L, E& A SysFreeString(valueStr);4 F$ y# F" B7 W; q+ q
. b& f4 N( Y" V2 |" w) j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???9 ]- u# u5 N+ N* _ I
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????1 y* s7 Z; } W; q6 [6 M5 a# f: E
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2.这是request的程序 ( y$ m, L: f1 ?1 t6 ?" N8 b: q3 r& t// Request a value from Extend 2 v4 o9 v% [& z: ?& F//3 W- m5 k5 w; s" p; @1 g- d
// Initialize the variant that will hold the BSTR. Set the variant's ) M& E9 V4 P4 z! ` ^" D// type flag to indicate the fact that this variant holds a BSTR. Place the2 U; |8 M( C* Q* r
// BSTR into the variant structure.- ` u0 Q& e% O9 s$ O1 z
o2 R2 @- o9 N& V N+ O6 j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 d' B8 A7 U& V! k8 U" \ 8 j& Y: E7 Z+ Y3 K$ U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 m8 d+ H* t# u: c) t VariantInit(&requestVariant[0]); . e8 [5 z j1 |3 o3 w g
requestVariant[0].vt = VT_BSTR; 5 @2 q* _ w7 `' G: L V$ h requestVariant[0].bstrVal = itemStr;6 e+ j! F9 V# o' }3 W# V4 S
" F9 U! B& B. ~2 T
topicStr = SysAllocString((WCHAR *) L"system"); : f3 p& \* x! M+ H# T( } VariantInit(&requestVariant[1]); . L: W$ Q6 q) G$ \8 v9 ] requestVariant[1].vt = VT_BSTR; 9 W( Z" K: i5 R. `: s1 M requestVariant[1].bstrVal = topicStr;! S+ K& ?% n P, [7 \
% Y" I# V2 B$ K3 X# H! m// Set the DISPPARAMS structure that holds the variant. 3 F- k% ?4 b& \7 ]+ ]7 U0 l; L 5 V" D; F* T: a2 h( n$ j7 p dp2.rgvarg = requestVariant; 8 |4 Y% V! z/ _# Y7 G dp2.cArgs = 2; & \ c6 e! g" U( |9 o% Q* |8 d dp2.rgdispidNamedArgs = NULL;" B: Q7 F$ ]' A
dp2.cNamedArgs = 0;7 D/ f- I$ O$ [- O) j0 O4 s% \
4 t M3 S- b! I# t# Q
var.vt = VT_EMPTY;9 v+ H/ Z8 p& ]* P/ }% B
6 n {/ ?. m( ] I/ _& k( ]0 g// Call IDispatch::Invoke()+ ~, L6 ]/ k8 e0 w% A9 ^7 d
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hr = m_pDisp->Invoke(1 }# V, M4 h) A5 o
requestID,/ h8 a6 x" V3 s& l( I7 {; V; M
IID_NULL, 4 {: Z8 ?& S4 c' [* p4 v4 I x( D5 c LOCALE_SYSTEM_DEFAULT,5 m4 I3 \. n) S& l" a# Z
DISPATCH_METHOD,, o1 @, V: s5 n% e
&dp2, n+ Z. m. N: h+ l/ a
&var,% F" j1 | b/ ?/ J- c
&ei,) [$ u5 k' N9 Q7 l0 C! y
&uiErr);3 D! k4 q. r g# Q- t% z5 z0 K
* r5 \8 T7 S% | SysFreeString(topicStr); 1 p m0 u. n6 @2 ]; s SysFreeString(itemStr); t/ _8 i, k0 n3 N# ]
请问该程序是获得extend里面的哪个值? 6 n# J# k$ [4 U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????