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:( f& U1 l! {9 z. ^8 z/ \3 v3 d6 G
Name = (WCHAR *) L"Poke"; `/ N* m: U) t+ v- z- q8 e
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hr = m_pDisp->GetIDsOfNames (7 t8 @- e" N7 D) O
IID_NULL, // reserved5 n# T4 t' o, O0 w$ m9 n) V0 {
&Name, // Array of names to get IDs for( A" g+ P( M4 v( d
1, // # of names in the array9 |3 R2 U7 X9 b- Y7 o! e0 a
LOCALE_SYSTEM_DEFAULT, // System locale% A$ \4 S6 ^0 M! Y
&pokeID); // Array of IDs to fill on output . _: v" ?' q. \0 `- u L; I5 J 7 }8 B n+ x* Q& A0 b6 y
if (hr)& I; s# K; A7 N% L0 _7 f
{ 3 B& ^4 k3 U9 e MessageBox ("Get Poke Unsuccessful");" F4 K ]$ {3 A; P" S
return; 0 d& d! [4 D2 f }6 M! G5 a& R* o8 f1 b R7 s# r7 z
6 w- L' n! A6 g/**************************传递数据给extend**************************************/ ; c2 g- k( D5 b6 K$ ~- T pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + L" ?0 l8 P& r W% j$ q" A" }* E7 r4 H valueStr = SysAllocString((WCHAR *) L"1232");& ^, A. { X! }9 s, o: t
VariantInit(&pokeVariant[0]); ; v! T( a1 t6 v8 z5 i8 I
pokeVariant[0].vt = VT_BSTR;+ a1 V! s4 _% U! k$ W1 U
pokeVariant[0].bstrVal = valueStr;& }1 r: `) n1 V" q3 ~* G. w' r
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / S' d8 P* D7 U* P VariantInit(&pokeVariant[1]); % y2 N% n2 ?. K4 B
pokeVariant[1].vt = VT_BSTR;9 y7 E+ ? t4 A$ N _- N# S5 v
pokeVariant[1].bstrVal = itemStr; ; O9 I7 |2 Z( X, Y0 n* s- v1 J% p: T/ v* N) B/ [* x
topicStr = SysAllocString((WCHAR *) L"system");4 e5 E+ D/ C- {: V
VariantInit(&pokeVariant[2]); 0 @3 ^! Z' `( I- I8 P8 `5 c8 L
pokeVariant[2].vt = VT_BSTR;, U" Q% Z9 d( F: g
pokeVariant[2].bstrVal = topicStr; ' p* n* p2 o0 |8 @7 o: Q$ k5 l 7 Q C# h- w; p4 ~// Set the DISPPARAMS structure that holds the variant.9 J- |' e; Q! m7 J- s
- N4 X3 l+ l9 P4 R+ w" P6 X: R% z dp.rgvarg = pokeVariant; Z* Q6 { p: w/ D' N, }
dp.cArgs = 3;% ^* c8 R6 j; _1 \4 d& l
dp.rgdispidNamedArgs = NULL; ) B/ I5 _0 L. L" N/ V$ x dp.cNamedArgs = 0; , n& B7 f9 F# y2 i) g! A7 K' c/ s1 y
// Call IDispatch::Invoke()! T+ K! W5 E( Z5 ^% ?( N, c
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hr = m_pDisp->Invoke(+ }. Q/ g) ~4 t; b. s! q* |
pokeID, ; n% b8 N0 W0 J IID_NULL, % {+ A* z: Q: d6 x. r k, q0 o LOCALE_SYSTEM_DEFAULT,3 ^ X0 P! u; O, {. X
DISPATCH_METHOD, + H# J% [0 j" V9 b: d0 n+ S9 r' Q &dp,/ i2 C7 l. G/ I: c( k9 k$ @
NULL,, U" G! D. |9 z% Z6 P: C5 l( G
&ei, % J3 V* n* F' y! n- b, j &uiErr); ) q1 I* I3 ]" h2 ?, b4 c + I+ r" ?, I; i+ N7 U SysFreeString(topicStr);+ G7 z( w( j1 ?2 ~: W1 S
SysFreeString(itemStr);) U8 M+ } y' q1 x# F- l1 J
SysFreeString(valueStr); 3 r: t& i! Z, O0 P; g0 v+ I + K9 w1 O/ w# k1 K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??? * D' K8 P5 h% k8 {1 G& y" U0 k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????7 X. p4 C, ^0 f# k) H
4 P9 v' ?; x) E 6 S; J% p, p* D# C, y2.这是request的程序 8 K- @* J' I, w) e/ y" L// Request a value from Extend 1 m6 _6 w7 G# U# u" W1 K//5 E$ y; L: m$ ^! r% f9 ^5 c
// Initialize the variant that will hold the BSTR. Set the variant's ; n4 b& p1 k) C8 R// type flag to indicate the fact that this variant holds a BSTR. Place the . p b+ }1 ~. ^) w Y9 `$ s// BSTR into the variant structure.6 A, C$ i' F. |9 q) e$ k* W
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 W* |, \ i2 z4 L/ u
$ f$ l) J6 ?5 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 H0 V o G% j# v* e2 |' `, n F VariantInit(&requestVariant[0]); Z, K6 {* ]* R- z9 ]8 z1 N
requestVariant[0].vt = VT_BSTR; $ w- v% @' ?( C* u' E requestVariant[0].bstrVal = itemStr;/ q! x, H, [0 C5 a
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topicStr = SysAllocString((WCHAR *) L"system"); + y8 {! X! ?0 V VariantInit(&requestVariant[1]); ; d6 p' x% K3 D- D" d requestVariant[1].vt = VT_BSTR; " C. I0 Z9 |5 O) [ requestVariant[1].bstrVal = topicStr; ' j( ~3 |, q v6 A . G) B6 z) ]7 x' P# `// Set the DISPPARAMS structure that holds the variant. 0 w% c6 g6 t4 u6 r: D, J, O" z& d7 H
dp2.rgvarg = requestVariant;3 K" |7 O8 b2 I
dp2.cArgs = 2;+ {$ q; n! i0 U, G, B
dp2.rgdispidNamedArgs = NULL; 7 r9 _4 F0 i- n, Z3 c dp2.cNamedArgs = 0;6 y2 D4 |0 k& b+ T3 f% Q( _0 r
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var.vt = VT_EMPTY; 4 G+ h; q1 j7 s* h ) k. P) G' P- ~// Call IDispatch::Invoke() p9 B1 r( H8 S5 C
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hr = m_pDisp->Invoke(7 d) |3 }! i o/ K6 D
requestID, , M6 A% ?$ Z; q- l% K IID_NULL,3 O3 B3 p& B. f* l/ I
LOCALE_SYSTEM_DEFAULT, ! l5 ]$ U+ N8 p R DISPATCH_METHOD, 9 o9 ? _ |; Q* p &dp2,4 p$ Z( j+ @8 E' v4 t9 w9 N
&var,3 R3 x4 h' m& j* D( A8 Z Z2 D) n
&ei, % t$ E% O- h3 s- o7 a# G: e) b &uiErr);8 a' @8 g; i5 b" y, ^
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SysFreeString(topicStr);; d- r0 F* S4 A3 U+ v0 p8 R: {- M
SysFreeString(itemStr); . B: a/ h# ^5 A4 z O3 C请问该程序是获得extend里面的哪个值?7 G5 O4 s' c5 I& {, @7 L) Z" s
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????