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: + Y) Y* ^ |3 \& cName = (WCHAR *) L"Poke"; $ |+ W1 `7 { X 8 r V- P! P9 C# x hr = m_pDisp->GetIDsOfNames ( ; r- H8 a0 C" y, p! k* ` IID_NULL, // reserved ! v( w3 A/ {" E &Name, // Array of names to get IDs for 6 Y- _/ v0 e w$ R$ _7 F1 w 1, // # of names in the array% \& y. W6 ~4 S
LOCALE_SYSTEM_DEFAULT, // System locale : Q7 Y' ~5 o: G9 R) z$ t- f' g &pokeID); // Array of IDs to fill on output6 v; `8 c: g; J/ d
- Y3 c |* H4 c if (hr) 7 T7 [0 f/ H u' \) ?: z { $ j6 O7 T- w# H3 Z6 [( r/ M* S MessageBox ("Get Poke Unsuccessful");8 f1 D2 \/ T8 u: Q T
return;4 z2 j2 q9 A2 y( x, B+ l
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/**************************传递数据给extend**************************************/ 1 @$ ~. t% z5 s9 z/ q/ R$ Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' {/ w9 V3 ?7 o6 l3 l 3 {3 \4 K- [& j6 S valueStr = SysAllocString((WCHAR *) L"1232");6 K I: f; q7 p8 O) a6 L
VariantInit(&pokeVariant[0]); ! f3 M; g, E6 A7 r" E
pokeVariant[0].vt = VT_BSTR;; U6 u: j8 J: n, y# }7 A
pokeVariant[0].bstrVal = valueStr; ) E$ q, _0 n, O0 R. }7 \6 l9 \) }6 k4 R1 @2 l E( f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % C0 o0 E; n3 M VariantInit(&pokeVariant[1]); ; {5 h" l+ p. I0 Q G
pokeVariant[1].vt = VT_BSTR; * M" C u& H) U# \" c H G pokeVariant[1].bstrVal = itemStr;# p' s: V' T! F3 y$ w2 @
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topicStr = SysAllocString((WCHAR *) L"system"); , N. s; d2 C" p w' k6 |3 M VariantInit(&pokeVariant[2]); 3 M6 d% l, T7 W5 p! n
pokeVariant[2].vt = VT_BSTR; ; G' L8 l/ E9 ^# | pokeVariant[2].bstrVal = topicStr;( u g* t( `( R
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// Set the DISPPARAMS structure that holds the variant.4 D+ {1 P3 G+ A
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dp.rgvarg = pokeVariant; / k( ]# {; f% V0 A# r) g dp.cArgs = 3; 4 ?8 l& H0 ?8 u7 ^9 [9 s+ S2 ?9 V dp.rgdispidNamedArgs = NULL;/ }9 t8 q' l/ C" W# `% M* I
dp.cNamedArgs = 0; " Z4 E) i7 h) F0 `0 s( R6 ]" w% { 5 Q6 r0 `& n0 G. J% y// Call IDispatch::Invoke()) a; N3 E% J6 `* Q7 q, m
5 f- p6 w$ P8 W1 C- ~$ q hr = m_pDisp->Invoke(5 a+ z5 V; Y( {$ Y& C9 V
pokeID, $ m7 z5 Y7 j$ d5 i$ d$ s! L: [ IID_NULL, 4 Q2 \+ [2 g# _" b8 m4 b2 s% T LOCALE_SYSTEM_DEFAULT,, B( ~* H$ `7 z
DISPATCH_METHOD,5 p. w9 m; V0 d, z& r
&dp, 4 W5 U5 H" f3 J7 E$ c* B3 G NULL, ; \- B# v) h9 A5 c: `- I3 N N &ei,% }, J- O5 l& {6 \
&uiErr); . H4 K ^, x/ w( p+ e6 [2 ?2 V+ Z
SysFreeString(topicStr); / E- C6 n2 [' A9 Z* a9 o SysFreeString(itemStr);+ f# n2 T) S' m* X: ]7 u; F
SysFreeString(valueStr);) d" S. {8 _% l0 q. {
! @3 s/ h9 [, K6 X$ w7 w& Y+ \: f# ?0 V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??? 1 R: n1 S+ g" w/ j8 j* u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????4 g. O d" X8 f
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2.这是request的程序. o$ X0 o3 c; Z' w7 m' P! R
// Request a value from Extend/ X9 S5 g6 K4 z: H
// " b( {$ D# |) _) [( e6 u* s// Initialize the variant that will hold the BSTR. Set the variant's 2 C' F2 u9 S" N" G7 R// type flag to indicate the fact that this variant holds a BSTR. Place the7 r9 V6 x3 p% m! k; I3 `
// BSTR into the variant structure. : z( q1 r$ I. J! H. g, Q+ L. Z5 |$ d+ y" P
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' ~9 O# b U5 X/ c: M0 y% P
% k7 {& z7 W1 K- u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) d C% g1 Q+ A. W8 Y
VariantInit(&requestVariant[0]); ) K% k# `8 l0 V requestVariant[0].vt = VT_BSTR;' E* n8 J7 r& Y; u: ~) F
requestVariant[0].bstrVal = itemStr; , `( a* e2 D% }" m2 V0 B; n3 \/ L7 T7 s: i
topicStr = SysAllocString((WCHAR *) L"system");* U2 Z8 X& {" o( e( `
VariantInit(&requestVariant[1]); " U4 d" W2 Z" H# F# @6 t requestVariant[1].vt = VT_BSTR;& ]( L7 @. f3 f5 q% \* L
requestVariant[1].bstrVal = topicStr; " F3 j8 h' }) B8 b2 {" s: e& w0 r6 T
// Set the DISPPARAMS structure that holds the variant.- l) m; J6 o# J7 \
; k, b. {8 v7 Z$ F0 I6 v; z dp2.rgvarg = requestVariant;4 O$ I4 W6 s8 X5 t' p9 S
dp2.cArgs = 2; " e& L4 I0 m' l; s; }' ~ dp2.rgdispidNamedArgs = NULL; `. f. D# p: c8 ^; T
dp2.cNamedArgs = 0;% q9 L2 [" J: T- C, H. D
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var.vt = VT_EMPTY; 2 P8 l# [2 c' C. {, ~- N6 j- U
// Call IDispatch::Invoke()$ m/ W* X" {4 y1 u5 W
% k' l/ N/ Q9 R- C hr = m_pDisp->Invoke( 8 _' z" U. Z' [5 b) [ ^9 ^ requestID,6 b0 }6 J& d& P, k0 P* s1 m4 y5 I
IID_NULL, 9 Z1 v3 C0 ]4 b& A6 u$ ~- N LOCALE_SYSTEM_DEFAULT, 5 a, q1 W- _: |' i9 t+ B& H DISPATCH_METHOD,0 H7 L2 N. v' S
&dp2, 1 u" ~" D5 U8 y; H9 L &var,- C9 c: |7 b3 v( E4 s
&ei, , F9 `4 `4 w* E( O* Y3 s &uiErr);* _+ a' z+ U2 _3 b+ @2 \6 S
2 v) p# {8 l( D h SysFreeString(topicStr);# o* k- P/ _) t4 L
SysFreeString(itemStr);1 o* ]7 L0 d$ E5 n7 \
请问该程序是获得extend里面的哪个值?* |( e6 I; \1 C6 ^, `5 D% Y* a6 R
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????