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:7 b& X0 P7 V' G- g8 u
Name = (WCHAR *) L"Poke";/ r- s Q2 O, u; O* @' T" D7 }
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hr = m_pDisp->GetIDsOfNames (; p4 z: h" j. [+ }
IID_NULL, // reserved* M- M) Q5 v( M" n; g$ K
&Name, // Array of names to get IDs for7 U7 H; O, U. ^# Q. {4 i
1, // # of names in the array4 K, m* f/ {5 u# q$ E& x
LOCALE_SYSTEM_DEFAULT, // System locale 9 _) \2 C1 y7 s: k. r &pokeID); // Array of IDs to fill on output/ O% b) a* J( ~
. R+ h, ^' @" B) L/ I if (hr) " Z8 ^+ u' v2 T { 9 O1 H& X) Q8 ^. t6 }, q- b+ M d9 W MessageBox ("Get Poke Unsuccessful");1 y+ Y( l3 D, }2 @4 z! ^
return;5 @/ Z( p' W v$ ?& c/ r+ p6 z
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7 u& S- a9 ~9 i; \/**************************传递数据给extend**************************************/ # V, Y9 R0 M% Y o4 R, e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& C1 H* `& X1 x( ^; P
- k( W$ }! K+ N' B! H valueStr = SysAllocString((WCHAR *) L"1232");; ?1 L7 C& W; T9 {4 t' |
VariantInit(&pokeVariant[0]); ' U( ^. N/ ?0 o% ]* a3 k2 s& F
pokeVariant[0].vt = VT_BSTR; 3 ~0 U6 O$ k; l2 l# G; T pokeVariant[0].bstrVal = valueStr;1 O, e8 j0 Q# d3 t- x
4 Y0 q7 D9 B( _( g/ X% v( F% p3 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! C$ K' M2 d" X. j8 h9 p4 G VariantInit(&pokeVariant[1]); 3 f/ i) `6 G0 m4 B
pokeVariant[1].vt = VT_BSTR; * c! m5 G# b% ~7 X- { pokeVariant[1].bstrVal = itemStr; & i& t# Q/ {# y: h ]+ D2 `* _, t) \
topicStr = SysAllocString((WCHAR *) L"system"); . `4 e# I$ o; \, Y9 D8 U VariantInit(&pokeVariant[2]); / R. i& G& d; P7 O/ D2 j
pokeVariant[2].vt = VT_BSTR; % t0 _, S, v9 ~+ Q0 @ ^: Q pokeVariant[2].bstrVal = topicStr; % Q; c( S: P6 R* _6 _8 g- [: h: [' [, ^! `3 E0 \
// Set the DISPPARAMS structure that holds the variant. 9 r% K6 S! r! F" y% g6 ?) g " w" x% {( _# R9 v dp.rgvarg = pokeVariant; # f/ k' n9 W/ V8 Y9 d2 B, J8 Q. M dp.cArgs = 3; 7 f: y5 D# m F& Y' r dp.rgdispidNamedArgs = NULL;1 B, d; w9 M8 h8 k) b
dp.cNamedArgs = 0; $ }! T' x6 y% w1 W5 p# l( ]: t* O 7 z9 s+ m% k7 y+ }, m: P// Call IDispatch::Invoke() * p+ [: T5 ^5 J- w$ x& |* X, u, R6 `0 y+ \
hr = m_pDisp->Invoke( 9 V+ R. ]% T4 W. c# \ pokeID, + A! ~3 q& `: ]" ~& J% n9 n4 j IID_NULL, 2 s0 c+ Y/ J' A' B4 X+ \ LOCALE_SYSTEM_DEFAULT,4 {- v4 T4 U' t; t
DISPATCH_METHOD,% N4 t1 J) u' e
&dp,% [$ Q( U" q/ m8 J, G4 V
NULL, + J$ k1 Q& j' j- T i& x4 _ &ei, 4 G& g l6 U0 _* Y &uiErr); , o1 R* j3 j7 q; t/ o; s( |) T3 e4 o( |" u0 H: t- K
SysFreeString(topicStr); ! @, b7 m) [9 K! Z- {+ W( a: Q SysFreeString(itemStr);- ]$ T( Q$ @, w5 W) R9 J7 Y
SysFreeString(valueStr); 9 D* D0 g6 b: q2 w# n" a" p4 @ , @7 U, ]% y j2 S, z( C' i- o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??? / f0 q8 p* }/ p/ K" M0 i& b0 ^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???? 3 @ ~" [1 o8 N, \& T . S7 T2 b& c& C& C ( g8 @8 d$ Y# E6 b7 E2.这是request的程序 & `$ \( ]2 _6 U* w. J// Request a value from Extend1 N/ `& X4 n4 G5 C" P& Z* |
// 0 e: @. J) Z; ]& X3 U7 Y2 l// Initialize the variant that will hold the BSTR. Set the variant's 0 v4 o+ Q! ?& i: r2 C( I0 X9 P// type flag to indicate the fact that this variant holds a BSTR. Place the$ r( f- I, n8 ]5 J- ]
// BSTR into the variant structure.7 @6 C: p1 s$ D5 ]
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . X- ^. s9 ?) p' |2 v7 B2 ?, K0 T 4 s* p7 i" e# i4 D
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 \+ b5 N3 f& @' \" Q* @
VariantInit(&requestVariant[0]); , w# S% T# p* b* D) N- v requestVariant[0].vt = VT_BSTR; 9 U$ u1 ?) l# t requestVariant[0].bstrVal = itemStr;% |5 g. M5 `$ ~9 I3 C
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topicStr = SysAllocString((WCHAR *) L"system");2 ` h. Q: n" d: k& u* {+ E; N
VariantInit(&requestVariant[1]); ! ]# l8 j$ h; `- A0 ` requestVariant[1].vt = VT_BSTR; / B& w/ T' w2 b0 f8 M G; w requestVariant[1].bstrVal = topicStr; 9 _& A$ t4 `" X" Y* M: p$ ~" o% D5 [. D: [! n
// Set the DISPPARAMS structure that holds the variant.+ w) L# {! L3 C8 M+ P% N' K, A
' K$ x' ~4 x- d dp2.rgvarg = requestVariant; 5 `/ ]8 r- n* W! G dp2.cArgs = 2; : G2 Y% l1 z4 q8 R* p) c' b/ j dp2.rgdispidNamedArgs = NULL;' T _8 U' \7 o5 T; I: O6 l# ]
dp2.cNamedArgs = 0; ) b7 t1 x8 L& {! r& o2 q5 _ h9 Q- y6 x0 f
var.vt = VT_EMPTY; " _8 ?1 o- J% s; o5 B7 x " W! M- H9 {& E4 |! X, G* E// Call IDispatch::Invoke()8 h1 L# e4 D& F' u) ]6 i4 p; V
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hr = m_pDisp->Invoke( . t n; t, O- Q: y% I% k1 D requestID,, W# M0 E5 A+ [; @8 @9 S9 c' v
IID_NULL, # \, O: p7 C4 a" d( m, Q# Z% y LOCALE_SYSTEM_DEFAULT,4 M6 \' I& v, L A- O9 _
DISPATCH_METHOD," h4 H- O. D# O6 G/ C" E/ V' |
&dp2,3 B; n3 w w; W. K! e
&var, 7 ]" c, e# w0 ]% k &ei, $ `" J, q( v; x% G y& x E1 {, [ &uiErr);( \# _. X' r2 q1 R2 s8 b
. _, @ g8 Q. z, I* c SysFreeString(topicStr);) N% {8 Z9 p; y8 Q) U0 P, o
SysFreeString(itemStr); ( w0 Q r% {; G5 _$ ^请问该程序是获得extend里面的哪个值?! v$ b2 C$ [7 o, 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????