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:+ T/ M0 Y, U& |& Q( S3 c0 Z
Name = (WCHAR *) L"Poke"; * j( J7 R* e% d8 `7 e; s # D- \. P; j. m! y: g: H" R& M) X
hr = m_pDisp->GetIDsOfNames ( ) z! |7 g+ M4 r, X b7 a& ^0 E1 \ IID_NULL, // reserved 3 U0 }; [5 ]: _5 ]& g& u &Name, // Array of names to get IDs for2 _3 U6 y7 B1 Z
1, // # of names in the array 5 G! E2 y( {) S, t; q LOCALE_SYSTEM_DEFAULT, // System locale( p7 Q- m% \. o+ ^1 W
&pokeID); // Array of IDs to fill on output. H2 Y1 J2 G8 e) I
( ^- R! Q2 @: p, d X# T if (hr)) l8 Y( l" c' Z/ j
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MessageBox ("Get Poke Unsuccessful");) C' h9 a. b9 i8 @4 v9 M, s
return; / \/ ^) r* T) P) B4 x/ X }# ]. j7 h V7 Y+ ^* f. A6 E. H
4 f0 g e7 T- y/**************************传递数据给extend**************************************/ 7 l$ P" J$ [4 F* D2 o% i7 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- l" F' m V" e3 K' J; W4 s' V& ?
) G8 ?0 v* b, e8 q0 V% R5 } valueStr = SysAllocString((WCHAR *) L"1232"); g9 C$ A) F, R9 x VariantInit(&pokeVariant[0]); " H C2 S3 y0 c
pokeVariant[0].vt = VT_BSTR; - O- W1 a1 D T# X7 t" \ pokeVariant[0].bstrVal = valueStr;; D; U) }/ a4 v1 L3 m9 Z" e3 E* L* h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 J# R2 \9 I5 V) q2 D- W VariantInit(&pokeVariant[1]); # u$ Z I* @% t pokeVariant[1].vt = VT_BSTR;3 n1 g7 |5 [- h+ ?* }2 p" @
pokeVariant[1].bstrVal = itemStr; ( K: u, j L5 s" n8 a 2 u, A" B. P7 p$ f topicStr = SysAllocString((WCHAR *) L"system"); m1 m' L3 F2 S* Z/ X5 B6 N$ p
VariantInit(&pokeVariant[2]); 7 V5 f0 W8 P+ f
pokeVariant[2].vt = VT_BSTR;, D8 }; [' I! G7 f/ ]
pokeVariant[2].bstrVal = topicStr; " w+ C. `$ N3 s' D, }+ e9 g; W8 U6 {6 |4 l
// Set the DISPPARAMS structure that holds the variant.' W1 X0 j; H( o# o: ^
: ^, V" u) n3 q3 h; e hr = m_pDisp->Invoke( * _1 O6 G! y! `( R pokeID,0 o6 y1 o6 y) t) H& f# w* l
IID_NULL,; V. j8 a3 A2 P" L& p
LOCALE_SYSTEM_DEFAULT,9 d% N B- e- {" R% _
DISPATCH_METHOD, + j, E% ~1 ?( t1 f &dp, + y! m$ o# l' l0 q, e/ K NULL,- w* T3 D9 _4 r( {/ P
&ei,7 e8 W9 w5 T( y* z: z- p0 [
&uiErr); ( b" y5 I8 x! A, ~; B. k0 r! Y+ n6 G5 X) u0 Z9 u5 v \0 ~
SysFreeString(topicStr); / k9 X8 W5 b' r! s9 e SysFreeString(itemStr); W; A( q. t, c' W1 L SysFreeString(valueStr);7 q" K, f( m( T4 F0 ?
) \' w- ?2 I, o: 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???' q# m+ A. ]+ o# {. U% N
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???? - l3 F' c6 q) } / J* y' E; L: P / T0 m f( Y7 q; i/ R2.这是request的程序 2 N1 a9 Z, \2 ~; V4 I4 Y: r9 Q7 h// Request a value from Extend% g0 w. w7 q$ ]
//% X0 P! n: N! N- Z
// Initialize the variant that will hold the BSTR. Set the variant's6 h- D3 ]) h1 i* g2 G% t$ ~" o
// type flag to indicate the fact that this variant holds a BSTR. Place the% c/ i, l4 D3 z: y! R2 o) A
// BSTR into the variant structure.4 D" p A" c0 z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); f3 L( |, U; _0 w/ c- [
/ B. G7 M$ p4 \1 W. M$ Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + O& [ n( \$ F! K" p# t0 k/ @ VariantInit(&requestVariant[0]); 2 Z0 s: a' f/ t! s/ P- A9 V, H
requestVariant[0].vt = VT_BSTR;9 x; @3 J5 n9 n& @
requestVariant[0].bstrVal = itemStr; ' ]' s9 }9 m) s1 k& h/ n5 u" J# Z* M; H
topicStr = SysAllocString((WCHAR *) L"system"); , [# ? Q: |! k8 L VariantInit(&requestVariant[1]); 8 L* M. t) @& h
requestVariant[1].vt = VT_BSTR; 7 l3 j4 y6 K2 v1 F5 s. } e requestVariant[1].bstrVal = topicStr; 3 j1 B/ |; l5 ^0 Y, Z( |8 p, J% y" D2 D' x! w4 R
// Set the DISPPARAMS structure that holds the variant., P9 X; N2 H) \
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dp2.rgvarg = requestVariant; 5 I8 \, H \3 F& G dp2.cArgs = 2;# K8 D% S" W0 I
dp2.rgdispidNamedArgs = NULL;! s/ ^8 n% W) Z. D
dp2.cNamedArgs = 0; 3 P4 F& M2 U2 e- @) g: d0 n6 o h- m/ b: [: n- v3 b
var.vt = VT_EMPTY;4 H& l! ~& k* e% r& x4 P; v
2 c% ]3 M$ o4 k// Call IDispatch::Invoke() ) [- S0 l5 Q9 f/ ?( H6 t6 h( |& }! V0 B/ W
hr = m_pDisp->Invoke( ; }6 o0 w8 @/ y requestID," ~/ ~4 d. P Y2 L. Y
IID_NULL,; ?/ o1 x. P- @0 t4 T! j) M6 r1 U
LOCALE_SYSTEM_DEFAULT, ) V" E+ u/ r4 T# d: i/ [8 l! S6 P/ l; X! X DISPATCH_METHOD, 1 Y' J% Q! ~0 j3 O# h &dp2, : a* x- K; c3 h+ L6 {1 n7 U &var, 0 D0 i% S0 w7 q8 s$ S0 D &ei,6 |# d6 f- i$ c' M1 y# o
&uiErr);* {. [- _, @8 q0 k/ J
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SysFreeString(topicStr); + B! o5 I7 n9 G4 Y4 F SysFreeString(itemStr);5 d# S* |* y2 l6 k! y/ L, j, \
请问该程序是获得extend里面的哪个值? + V: [- C- h( q' G( |* E/ Z: [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????