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:% I5 J! F. E1 C0 i, ^4 C- e
Name = (WCHAR *) L"Poke";* F5 a' |9 c0 ^: m9 l N( i
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hr = m_pDisp->GetIDsOfNames ($ l9 v( b% q. D U# O
IID_NULL, // reserved ! Y7 A5 h6 w- t. j4 ] Y) n &Name, // Array of names to get IDs for8 R% D! h) `, M; f: V( s
1, // # of names in the array % c! r Y5 s: E, [( r0 n) ~ LOCALE_SYSTEM_DEFAULT, // System locale ; j* ^2 _! I+ G( U6 { v &pokeID); // Array of IDs to fill on output 6 o- D7 `3 q0 W+ ~ J; J$ g# e& ?# [' o" A
if (hr)9 Q' G- ?6 |, J- m$ \' c
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MessageBox ("Get Poke Unsuccessful");+ B# t4 [$ W% I
return; 1 _5 c6 P' c, x' n: k }9 ^2 |) d; f* l2 {7 T
6 K- G) J0 D: w3 B f/**************************传递数据给extend**************************************/" o; s4 a5 [0 [ [2 Q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % Q5 E* \: W4 q+ @. b6 ~& c1 e - f, r$ {# ^9 m" e8 `. ]
valueStr = SysAllocString((WCHAR *) L"1232");2 q& [% V6 N/ n F! i
VariantInit(&pokeVariant[0]); : q% }! W2 {: j* Z. S- F8 C5 H$ B pokeVariant[0].vt = VT_BSTR; 1 Z. n# d% v6 o' S* F, A( }1 G pokeVariant[0].bstrVal = valueStr;8 [0 C. K2 V2 n! [
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 H, `4 C; l2 O' d3 U VariantInit(&pokeVariant[1]); , m3 t# u8 L) g! C! S; M
pokeVariant[1].vt = VT_BSTR; - m3 @+ S A" ^0 e# r pokeVariant[1].bstrVal = itemStr; , k; h0 Z0 y9 ]0 e. K" \! r5 z: l, A' o; d
topicStr = SysAllocString((WCHAR *) L"system");+ i/ U( k4 V2 P/ l; D" H% o
VariantInit(&pokeVariant[2]); ) Y9 ]9 i. r: A+ P k. R
pokeVariant[2].vt = VT_BSTR;! y3 F9 P- v& c4 x' z- m- n
pokeVariant[2].bstrVal = topicStr; 6 [/ W$ C. N) t+ v" w # H* u8 X1 v ^0 k' @. C// Set the DISPPARAMS structure that holds the variant. p' Z9 v" _( s5 n2 ?7 M! u& @6 {9 P
dp.rgvarg = pokeVariant;7 W. g& f/ E0 t# F/ i, I" ~7 w' H
dp.cArgs = 3; - i; ^* ~( d9 R) i7 t/ R dp.rgdispidNamedArgs = NULL; 5 T% \$ H3 A' @+ x3 B dp.cNamedArgs = 0;3 y! t' f d; k/ L# d
6 q) M4 ^" y$ {- P& N+ w- _// Call IDispatch::Invoke() 5 l4 [8 \. k2 ~# E9 L! S" B& h3 b; N% C( t# \: {* L
hr = m_pDisp->Invoke(2 A# G- I0 Y' `+ U5 Z
pokeID, 9 p8 T, g% ^7 _/ { IID_NULL,4 _( Y9 k# C; K! X; V
LOCALE_SYSTEM_DEFAULT,+ S; `1 M4 r$ T0 d! K- _
DISPATCH_METHOD,7 C' S' q& r# Q5 M* w; u
&dp,7 V) F& k N' @8 m4 E/ v, f
NULL,% z# c$ I. c. M
&ei,6 h% G5 v; k; b% v% x
&uiErr);. X: W/ W+ R2 F9 H4 S, X. A# J4 b, N
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SysFreeString(topicStr); ( d! Y, n, ~9 {( O8 U" c. p SysFreeString(itemStr);% U4 M! V9 H0 e/ H2 B
SysFreeString(valueStr); % a1 w7 J. J# T7 j7 U' u, n( Q$ f1 v; D+ z! G% F
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???7 u' r4 Z/ u5 f9 d# E5 \( f
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???? ; P" H: K5 Q; P- k& m; a) {& b7 ?( e) ` T9 N0 g$ [
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2.这是request的程序 5 G& A6 ]# p! ^5 e// Request a value from Extend $ l5 i) J0 l- n& w$ d3 M. W- g// 0 X; l6 ]! ?+ {// Initialize the variant that will hold the BSTR. Set the variant's8 R/ [5 d- S. F* e9 _& |
// type flag to indicate the fact that this variant holds a BSTR. Place the $ C) o% F4 E2 k* [) a: a* A$ _// BSTR into the variant structure. d4 F$ X5 V2 n
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 S, @* @! M7 f8 a3 ] 1 s1 g9 }: Y" o( I: d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' x0 |) [* N4 {0 D3 z
VariantInit(&requestVariant[0]); " w; W V _ e+ y( u, u requestVariant[0].vt = VT_BSTR; 3 ]4 R7 P+ y, [4 K5 _1 F; { requestVariant[0].bstrVal = itemStr;, [- `- D2 g3 n
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topicStr = SysAllocString((WCHAR *) L"system");( p* |* B/ V2 E
VariantInit(&requestVariant[1]); 6 E9 w, K, A; r. ] q
requestVariant[1].vt = VT_BSTR; # Z2 S) f7 I4 b. b4 [ requestVariant[1].bstrVal = topicStr;) t$ S( O [+ b- i2 ?- i
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// Set the DISPPARAMS structure that holds the variant. # K% }0 g! E+ a+ ? * C* l6 G$ s) H; O! D9 Y dp2.rgvarg = requestVariant; : H7 X1 l w$ Q( X* Q; @ dp2.cArgs = 2;- I- L1 W5 \* b
dp2.rgdispidNamedArgs = NULL;! h5 K! L7 c/ x% i: x( ?
dp2.cNamedArgs = 0; h1 t9 g( j5 J5 D F+ s 4 _: O. t0 Q9 c7 W var.vt = VT_EMPTY;3 G/ l3 X, \7 m
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// Call IDispatch::Invoke() _8 F8 z8 F4 @$ J
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hr = m_pDisp->Invoke(. N3 z& @) j5 }* {! V/ W* I1 {2 ]
requestID,5 o6 H% d6 A! Z( ^' n7 q, {
IID_NULL, ! \; h) S; ~$ K$ ]# M9 H LOCALE_SYSTEM_DEFAULT, - h3 V) X3 B' h' E# T DISPATCH_METHOD,* F- J5 u$ \ Q& {4 V' n' w t! z
&dp2, " w \6 a7 d! q2 z2 s! G2 R8 } &var,3 Z+ t/ l m1 x+ `4 M
&ei, - z3 X2 z. r8 a, _$ _5 x. H &uiErr); % d& o) k" }& |1 `# h7 f" ~' M) ]2 J- o3 Z, c
SysFreeString(topicStr); 9 E. D( G6 c( F2 E7 N( c( F SysFreeString(itemStr); 4 V- c/ k2 e1 n. p2 Q请问该程序是获得extend里面的哪个值? , e4 s& n; p3 B( o- k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????