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:; U& n! s( K8 v6 O
Name = (WCHAR *) L"Poke";$ D; w/ F, y5 b1 H
' {' `6 T" ?+ y7 c- p* c hr = m_pDisp->GetIDsOfNames ($ [% r( f7 p' f* o3 J
IID_NULL, // reserved& Y d! q. m K+ v' F
&Name, // Array of names to get IDs for : u; G( {+ w4 p! c 1, // # of names in the array , g# A* p" z+ P' M LOCALE_SYSTEM_DEFAULT, // System locale 5 h" O+ ]+ H$ C. U1 f &pokeID); // Array of IDs to fill on output 3 W/ Y3 ~) ]4 D& s$ B ! A2 P/ e0 \$ `% u7 ~* v if (hr) m) Z% S- u* k
{ 9 d6 M+ |2 I9 x4 }' a6 Q MessageBox ("Get Poke Unsuccessful");/ e( ~. l5 J; }* o
return;2 X. I E3 i9 }! g. }
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1 o* y# z) U( X/**************************传递数据给extend**************************************/ ( B }3 [/ d% X' [ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 o+ J& J8 a% H ) ]. A Y2 e, d
valueStr = SysAllocString((WCHAR *) L"1232");3 n N5 Z8 N4 g! Q. u$ ]
VariantInit(&pokeVariant[0]); 0 x1 w7 o3 E6 s; Q( g- R: e pokeVariant[0].vt = VT_BSTR;8 J, a( m3 ~6 }- g( r
pokeVariant[0].bstrVal = valueStr;' l& S' n( ?2 i& S: P
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ `3 y0 \; y' d1 J. V n7 s# r
VariantInit(&pokeVariant[1]); 8 b6 Y4 s6 p7 E
pokeVariant[1].vt = VT_BSTR; . Q6 P( `; ^) z& p- m6 |- Y: q' v pokeVariant[1].bstrVal = itemStr;$ ^' }1 @; A/ S7 i
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topicStr = SysAllocString((WCHAR *) L"system"); W% `$ U' N; C" D }7 H
VariantInit(&pokeVariant[2]); 9 n9 q9 X. n/ S& S; i
pokeVariant[2].vt = VT_BSTR;; Z* E* n+ [* K: o) O
pokeVariant[2].bstrVal = topicStr; - P' d& \% n8 W9 H2 u, r 3 l7 V/ o% r0 {( \0 X* l// Set the DISPPARAMS structure that holds the variant. ! a& Z% o1 S5 ^' S5 {' [' F o8 i! d i' r. g" o
dp.rgvarg = pokeVariant;: O# P3 O: e! a- N" v7 U0 @7 I
dp.cArgs = 3; % x$ |9 n9 I6 M0 t; Y# S# y1 K dp.rgdispidNamedArgs = NULL;9 f1 g, n' F \, i& B: f" ?
dp.cNamedArgs = 0; 1 F, Z1 i/ t, M b; M 9 r8 d5 ~ V8 w3 p! S// Call IDispatch::Invoke()( w8 e- i" A& v" _6 ]+ k0 q; s
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hr = m_pDisp->Invoke( q7 l- I- | P/ S
pokeID,! W( ^3 u) P3 h! v m- [
IID_NULL,0 f" L9 b- v/ f# D$ l! G( B, S! m
LOCALE_SYSTEM_DEFAULT,( S r5 ]# [: P5 Y, @. C
DISPATCH_METHOD,9 H. O/ I$ w: _1 Z
&dp, 5 B5 g! T. o" P' S NULL,$ @7 T5 }, Q' r7 y
&ei,9 |8 b& G7 k/ p$ h& r
&uiErr);0 k0 I B: A- \6 K
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SysFreeString(topicStr);* {& U1 C3 C& ]- U
SysFreeString(itemStr); , A* @( P/ A" ]0 q& {: f# P( @ SysFreeString(valueStr); 8 ^! W$ G8 Z9 Q: r# S2 M% R8 D$ U& R2 N# j" S2 B) [& K1 {
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??? 4 A7 z: s0 R( m8 b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????- _: T( F7 x5 n4 K j6 x
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2.这是request的程序 , [( Z) Z/ q3 `4 q// Request a value from Extend & x0 S% a1 P8 a// ) O2 O2 T; `; Z// Initialize the variant that will hold the BSTR. Set the variant's ) d8 f0 [! d) e1 m6 d// type flag to indicate the fact that this variant holds a BSTR. Place the - e: c6 C9 E( d2 t0 m# m// BSTR into the variant structure., U1 R6 |. {6 l" I% |/ D
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% {( x9 I6 t ]1 U4 g" |
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ F; i l! [) F% y9 _, x5 q) M) o
VariantInit(&requestVariant[0]); # z; G, D) Y9 X8 W/ e; X* P. @
requestVariant[0].vt = VT_BSTR;; j, w. b; G# O) U( c$ ]% {
requestVariant[0].bstrVal = itemStr;. Z- ~: e* V {2 I" R0 E; K) Y
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topicStr = SysAllocString((WCHAR *) L"system"); ; @, w5 ?9 j1 S7 V# R6 N1 Q VariantInit(&requestVariant[1]); j% y, X4 J0 S7 t- t) {
requestVariant[1].vt = VT_BSTR;: W7 U" j& n. H% G6 X! b) B" t
requestVariant[1].bstrVal = topicStr; 1 l# h& b ]: t/ A4 w # ^! K+ O8 R5 C! Q// Set the DISPPARAMS structure that holds the variant.7 ~/ N/ [, M4 m6 B' a, ?/ D \
# `4 U+ P4 F3 D* f! _ dp2.rgvarg = requestVariant;( q* h: q6 t% D( J( q* Y, l
dp2.cArgs = 2;6 C( j `( ], h$ Y
dp2.rgdispidNamedArgs = NULL; , K' @$ t4 |: P- j; C3 d; d dp2.cNamedArgs = 0;- Y9 v M8 a! e- B' }6 w4 x
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var.vt = VT_EMPTY; 7 n) r0 T1 P, h3 o" Z! D, h0 W 5 [; o* U( y& J9 A) C+ F4 }- n// Call IDispatch::Invoke() & c6 g7 W6 E& U }7 \/ g f! J) j2 F. J$ k2 A0 N
hr = m_pDisp->Invoke( 4 K9 I' m+ J( y2 V$ X& E* [ requestID,0 t0 s, I4 c; x9 ]! g6 L2 ^
IID_NULL,3 ?9 B" t- i$ L8 J5 @8 D6 i
LOCALE_SYSTEM_DEFAULT, ! E& @' o! W$ [- W DISPATCH_METHOD, 2 T, j* J& r3 E$ } &dp2, 8 T9 a! F8 e( S2 e$ @- @ &var, $ _2 i9 i- Q9 W9 o8 j &ei,& ^1 O4 n E- Q: W
&uiErr); * k* r+ U4 o$ z M% o& \2 ]' B2 B+ d. g
SysFreeString(topicStr);& J! Y- a0 F6 q& D8 Y! N# N" G
SysFreeString(itemStr);+ w) [& Q2 ~, J4 j4 X0 _! ^: X- G
请问该程序是获得extend里面的哪个值? 9 P# A/ w! O" |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????