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: R; v7 `) @! `" a6 T
Name = (WCHAR *) L"Poke";7 l @) T2 x/ n) j
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hr = m_pDisp->GetIDsOfNames ( l) g+ V% g5 i6 P
IID_NULL, // reserved 6 x# Z; h: |$ X& b- c &Name, // Array of names to get IDs for . j: I) w' }/ u+ C 1, // # of names in the array. v6 q# q2 G. q9 V4 u) E
LOCALE_SYSTEM_DEFAULT, // System locale 9 Y' k" r6 I8 x6 X &pokeID); // Array of IDs to fill on output% {" W7 D: w' b
! L+ \1 T; Q" ]: x2 S' J& D' r if (hr) ' I+ `. Y2 ?. I K { , [0 K/ g$ X: \1 Z. k7 N) W MessageBox ("Get Poke Unsuccessful"); / ]7 w- r! ^5 M# m return; * f. u8 x$ E# c+ ~# t }8 y# y8 ^3 E6 U5 v0 r. ]
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/**************************传递数据给extend**************************************/ # |/ \% a: v% U" g& Q; R. I: f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# n) T2 N$ K {8 F6 `
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valueStr = SysAllocString((WCHAR *) L"1232");+ @8 P h8 `0 h% j- s0 b/ i p
VariantInit(&pokeVariant[0]); , b, N4 Z0 |. m! h' t: H
pokeVariant[0].vt = VT_BSTR; . \0 u }1 H# A/ H pokeVariant[0].bstrVal = valueStr; ( w+ R# Q! B* Z- N% }, m$ |: N ; o" S8 D! _% E, l3 B w. D1 j. ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; Q& L' @: E; i5 J- w+ _ VariantInit(&pokeVariant[1]); $ \ _+ z. S4 g
pokeVariant[1].vt = VT_BSTR; 6 p n% X$ O- N \ pokeVariant[1].bstrVal = itemStr; % m5 T3 v) _( U8 I / Y# |& s! n' \7 e- ?( a topicStr = SysAllocString((WCHAR *) L"system");3 l+ A3 J X0 p7 k2 V. r
VariantInit(&pokeVariant[2]); 7 f" e* G0 v$ I+ B5 I9 h pokeVariant[2].vt = VT_BSTR;1 a1 F9 A0 S. | Q, H
pokeVariant[2].bstrVal = topicStr;# W& U8 B$ n, A
, A$ K1 N, f/ u// Set the DISPPARAMS structure that holds the variant. ' B6 E' n% i4 T ) ? m8 i, M7 k- d; w* w* c4 @2 J dp.rgvarg = pokeVariant;0 d1 g! V2 G- R8 b# T: X# {
dp.cArgs = 3;: n) m1 W& v. L. C
dp.rgdispidNamedArgs = NULL;/ B* B' ]: Y4 K4 s
dp.cNamedArgs = 0;% M2 B+ P$ m% A/ V- X, z4 I
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// Call IDispatch::Invoke() . A, }% p* p8 c: L! k9 E) O; q( g. H C: N8 s
hr = m_pDisp->Invoke( ; i9 \$ Y! l d5 t, \ pokeID,' L: q3 u3 H" B5 h
IID_NULL,! @- {' A7 M, H5 x
LOCALE_SYSTEM_DEFAULT, $ e; n) X6 j& z8 A DISPATCH_METHOD, 8 Z9 u& R7 A+ d0 u! M+ S9 V" F- L1 R5 L &dp,8 T( u/ h7 S( n
NULL, r7 R$ I. X9 E" i4 p &ei,: h4 E' l2 z+ M& x
&uiErr); 1 @0 h4 `' Y( m! b* _% g& @. Q/ Y0 p& x- W
SysFreeString(topicStr);6 ^3 L; V1 e1 S; B
SysFreeString(itemStr);; p) S+ F* Q* c* N
SysFreeString(valueStr); " x. N& o8 F, e$ g$ D ) Q$ U7 }& C1 o6 @5 |% n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??? 6 }1 q2 W; p1 y; |! Q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????4 ^( f% O( F0 a9 S- j. I
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2.这是request的程序+ R2 f: ?0 g3 b% I" d u1 p7 d
// Request a value from Extend - U" Z% l" f1 ]6 ^5 P/ c+ z- |# r* f// / ~' p" x8 i6 [0 z2 Y// Initialize the variant that will hold the BSTR. Set the variant's1 ^8 q, s1 g8 {( p% I
// type flag to indicate the fact that this variant holds a BSTR. Place the- W# [. ~3 X8 i% N8 A
// BSTR into the variant structure. 8 f4 }& ~; r/ x/ s+ J6 X - o/ n8 }# ]" L7 V0 ]9 d; ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 b5 o: H3 L! F6 i2 ?/ C' d0 s
5 `# R$ u* R$ }0 W5 p/ u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 G. W% O& L1 |) M' F d" g V
VariantInit(&requestVariant[0]); * b5 Z+ b7 ~% [: |- `" x+ ]' f
requestVariant[0].vt = VT_BSTR;( \8 S, m& d, ^$ _ F. t
requestVariant[0].bstrVal = itemStr;5 x4 l4 X* Z4 ?4 [( W3 X
, [9 P7 [( g: O3 Y topicStr = SysAllocString((WCHAR *) L"system");. G o: C% L3 f, m& Y
VariantInit(&requestVariant[1]); 8 Q S0 [ y7 z8 ?4 m
requestVariant[1].vt = VT_BSTR;0 s% i( F! I7 d! q j W( q
requestVariant[1].bstrVal = topicStr; 8 h6 b- n0 I* F4 b4 {1 { ' c/ Q4 x' W- x+ m: E5 T// Set the DISPPARAMS structure that holds the variant. . R9 B2 v- R- B# R# d0 a5 Q) K1 [6 }* w3 `
dp2.rgvarg = requestVariant; 5 a6 B- G1 b# B/ W0 U% z! K% r: k dp2.cArgs = 2;# I8 P4 i ? Z) H9 n! X0 L
dp2.rgdispidNamedArgs = NULL;/ Z# n* v% j, o% }
dp2.cNamedArgs = 0;5 N6 L, S. b0 I+ o
) _" i. w; Y/ { var.vt = VT_EMPTY; 4 K0 V4 C5 K7 G. h0 N! x; X L) Q4 | M9 Z
// Call IDispatch::Invoke(); q4 a7 ]5 D& s: U
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hr = m_pDisp->Invoke(3 S; _1 f9 k6 A
requestID, - _- \, V8 S3 u4 _ IID_NULL,5 T* P6 o) y8 T$ B2 k; X
LOCALE_SYSTEM_DEFAULT,0 |/ _& d) \# s" H; I$ l8 J( o9 o
DISPATCH_METHOD,! J) c; Q6 {5 t* l8 j. H' c* [" _
&dp2," O6 D% H& l6 m6 z9 N. n
&var,$ f. _' w- L* a k' |* n9 r
&ei," L! A) s0 m$ E- u4 X
&uiErr); . x: Z0 N& F2 \: @6 C5 x2 X# ~3 ?2 u- Z& K
SysFreeString(topicStr); 5 \, x6 J& _! f4 L SysFreeString(itemStr); X' }' a v( A+ U# T请问该程序是获得extend里面的哪个值? 8 t2 ~7 u1 n& u. ]9 g1 U( L& D7 V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????