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:+ g/ W: a( R/ y. @* V3 W
Name = (WCHAR *) L"Poke"; % i9 ~4 F2 G! q, Y+ U 1 l# D, c! o1 N- f* `. y6 s
hr = m_pDisp->GetIDsOfNames (: l6 C/ }* [5 X
IID_NULL, // reserved9 L" c' M. H9 g* f, r3 K2 P
&Name, // Array of names to get IDs for; Q5 X8 t. A! H7 J) _
1, // # of names in the array! l3 [+ T' g9 Q4 l
LOCALE_SYSTEM_DEFAULT, // System locale. e/ L! T& d0 h/ P' P; b+ [ {
&pokeID); // Array of IDs to fill on output 1 Q- M, I- Q5 E4 X% F2 g* A' P# v 0 }$ X+ R4 D E) n9 p/ H7 {
if (hr) / X- Z1 s* n* Z { ! u" q, w g s% L: O4 Y; u K MessageBox ("Get Poke Unsuccessful");0 o9 W# x7 O, r% X
return; 1 h& v1 d1 B% k5 ~0 L } * M' l( M6 L5 n; u5 ?- K } . F! y2 h* x6 `$ p% ~3 R/**************************传递数据给extend**************************************/2 r2 y9 Q+ ?4 T' {( ^, d# }0 A
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' W8 H6 v' z/ |1 x8 H4 m ! T0 Y0 f+ z2 b9 I( K valueStr = SysAllocString((WCHAR *) L"1232"); m6 i- m8 d2 l: ^. H" t8 p5 {" k VariantInit(&pokeVariant[0]); : v2 H8 L+ ^1 _$ o# e } pokeVariant[0].vt = VT_BSTR; 9 K6 e# w8 d( f9 N; ]" d pokeVariant[0].bstrVal = valueStr;; I3 m- p/ O3 {8 K& I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( F8 V6 [, R* A
VariantInit(&pokeVariant[1]); % J+ H6 j, \5 m pokeVariant[1].vt = VT_BSTR; ( H7 p! j o( r) q pokeVariant[1].bstrVal = itemStr;. f, |/ c' o4 O$ I: F
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topicStr = SysAllocString((WCHAR *) L"system");& \. S) e2 d2 t# S
VariantInit(&pokeVariant[2]); " A- x3 G4 M/ [* C. m r7 i pokeVariant[2].vt = VT_BSTR; : A! j O* x: C! p/ y" b, g8 ~7 d pokeVariant[2].bstrVal = topicStr; ! K1 ~ T/ v" R, A0 w& ^8 w4 t2 e : u: j* o: N% _// Set the DISPPARAMS structure that holds the variant.9 h* n# X9 o6 G8 I+ w5 a; \
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dp.rgvarg = pokeVariant; 1 J: m6 S. g% `# B dp.cArgs = 3;- B9 x. H0 C. F9 J$ G# S' l- B
dp.rgdispidNamedArgs = NULL;" c* L0 K0 c: F& L! k, M0 K: Q
dp.cNamedArgs = 0; H' U$ j/ [% k1 [2 o, f$ @/ J) k# K* Y/ }+ h8 n; N7 M
// Call IDispatch::Invoke() K6 J/ ]4 @. X1 w# ]& A6 V# z w9 o u: ^+ t) }7 M
hr = m_pDisp->Invoke( + [2 Z- _( X, A/ A# P% Z pokeID, 4 X* i* D5 |+ p( ?4 q) L IID_NULL,( f& d V1 {- C5 f
LOCALE_SYSTEM_DEFAULT, ) w$ M* ^" M$ w7 X/ R( ]" ~ DISPATCH_METHOD, & s: j D4 v4 d r& c6 p &dp, % k+ S5 I1 n2 E* t6 y* D NULL, ' ~2 C' n5 \4 X9 E) S &ei, , ?* @3 _. {! ^# o; g! l% K &uiErr);2 f, a$ F) ]" K) @
5 q1 c N6 r" m" F# r1 q SysFreeString(topicStr); h0 t: U- s. F$ ^; l) B# b" R
SysFreeString(itemStr); @ n3 s3 a0 D' M SysFreeString(valueStr); ; }8 O9 ^( d) _+ K: L, a4 V. J' N! C$ r& s! D
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??? ; h1 M1 ~, O# R T! 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????9 b0 ?* t0 V5 ]8 j' J. C& l; `
2 X! p2 ?- @7 j. F/ O. F 4 q7 W9 Q, I* N F C9 o- e3 V) Q! T2.这是request的程序 * }- X8 Z' @; s5 O4 B0 F- N// Request a value from Extend% _9 R& `& H" B0 A
// ( R4 d! x* r& d9 S% F// Initialize the variant that will hold the BSTR. Set the variant's' E$ G8 ]5 o' X! z7 S, s
// type flag to indicate the fact that this variant holds a BSTR. Place the - R8 V0 C2 b+ @9 C2 {( t// BSTR into the variant structure.- j& z3 `/ {) E% F
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 u" J" B) n& J h, K0 S6 O 8 w9 Q$ r4 p( J) m2 N! B7 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; a0 x) B% t0 e0 ~& M5 } VariantInit(&requestVariant[0]); 0 }' O$ W5 G L1 C' A" L, J+ u$ R requestVariant[0].vt = VT_BSTR; ) o8 O& v1 N! |9 y) B# l3 I requestVariant[0].bstrVal = itemStr;# n& x" P. k( b
9 T, f+ y5 {/ k& h( w8 _% [+ x topicStr = SysAllocString((WCHAR *) L"system");" h3 J+ g0 t0 N3 E8 s: G3 @ W/ X6 u
VariantInit(&requestVariant[1]); ) b+ d) C9 O6 K0 J
requestVariant[1].vt = VT_BSTR; 8 C7 M4 c2 e* B; f( _; [$ z* P: C0 p' [ requestVariant[1].bstrVal = topicStr; : I" o( J! [- Y/ r r2 _9 T2 T/ u5 m w* u// Set the DISPPARAMS structure that holds the variant.- K+ F1 `. N+ o/ m' ]
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dp2.rgvarg = requestVariant;- D7 `( b) G$ @ i0 P5 L- e$ p0 g' t
dp2.cArgs = 2;6 {& s; d# u5 q8 |& l8 d# p/ ?
dp2.rgdispidNamedArgs = NULL;9 p% x* J- z/ v5 S# v8 q
dp2.cNamedArgs = 0; 8 a* m- o/ d* L" m+ j: w2 [0 P# W! N/ F/ n! j6 m+ [7 k i$ V# R
var.vt = VT_EMPTY; ! ~6 ?3 s {/ a' c 9 ^# q9 b7 T2 r( `// Call IDispatch::Invoke()) b" I- |) L! W$ r+ V+ l8 s# P9 w3 j
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hr = m_pDisp->Invoke( ( a/ N- o$ \' V& T) A. t requestID,. H+ D' r- |0 B' |+ q
IID_NULL, 3 R; U- i$ h! b: n/ W7 i/ K4 [ LOCALE_SYSTEM_DEFAULT, 9 a0 \5 X' s3 f* q, p( N DISPATCH_METHOD," x& j! M: x9 o% D
&dp2,1 [. K. D; t7 C; G
&var,' P3 {9 ~+ U2 E0 N6 P% \
&ei," ]1 s, z" h7 ]3 S8 T. R
&uiErr);" [7 t3 G' [8 L
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SysFreeString(topicStr);* w( l8 \- s5 E8 f' P5 q4 y8 F& e
SysFreeString(itemStr); 7 X! _ P5 Y2 ]6 A* T请问该程序是获得extend里面的哪个值? 8 R, b$ T6 A& q G$ G' f/ d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????