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: 9 z B _" j! }6 N5 Z9 T& dName = (WCHAR *) L"Poke";3 D9 ]$ c3 O# b+ N5 v8 w
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hr = m_pDisp->GetIDsOfNames ( ' {7 u1 H/ a) e( g IID_NULL, // reserved + Q* t0 r4 W+ D1 C2 ]. d &Name, // Array of names to get IDs for; r7 p: Y, N& i9 h& X
1, // # of names in the array4 L5 }4 c* j# X; J1 L2 u2 ?
LOCALE_SYSTEM_DEFAULT, // System locale % S' \0 \3 k \ &pokeID); // Array of IDs to fill on output, _" r9 h5 b$ X& ^% c. ?: ^; F
: G* P( q4 L: [* N# M; } if (hr) " {& x6 b$ J% h# D { & E" @- S. L T, { MessageBox ("Get Poke Unsuccessful"); 6 T' _1 d1 E' D+ a+ o2 m" c9 p return; " D# K0 a) f! r! C' U2 e( O } 8 o: L5 u- a2 L/ H 8 ?6 l# R2 W( e0 |4 o5 }3 c/**************************传递数据给extend**************************************/ V, P/ d5 ?0 {) a$ B
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 k! ~8 e% M$ I) k0 F
6 i- w# W! K. a4 ~) v' U6 P! k. O/ H valueStr = SysAllocString((WCHAR *) L"1232");' v, y0 A9 _( N+ E3 W, Z
VariantInit(&pokeVariant[0]); $ R F/ o4 x$ O* Q
pokeVariant[0].vt = VT_BSTR; C. Y7 ^0 X$ s/ B9 r3 p+ ?
pokeVariant[0].bstrVal = valueStr;5 }9 {& I/ N X" y6 X
4 T2 s# k, C9 ^1 y) C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 {6 `$ }7 m3 D! ^' K VariantInit(&pokeVariant[1]); ]1 w! x& ^* O, e a( ]5 w pokeVariant[1].vt = VT_BSTR; " W; o) x) c, Z' @# u, W pokeVariant[1].bstrVal = itemStr;+ W: s' u' Z8 t( d2 v0 m3 {: L% V" W
7 L' x) g$ U6 E9 h; s/ a. _0 h' I* h% Q topicStr = SysAllocString((WCHAR *) L"system"); + y- G& [) |9 @0 t, \ VariantInit(&pokeVariant[2]); % M2 i' u2 O! w' y
pokeVariant[2].vt = VT_BSTR;: R! O3 b2 Q9 ^0 u7 n
pokeVariant[2].bstrVal = topicStr;8 D6 o R$ F$ L
[, _" |' [, k// Set the DISPPARAMS structure that holds the variant. . q M5 H% l* H" U. Y% S, O6 w! b! J6 n8 S: J7 r
dp.rgvarg = pokeVariant; 7 [, Z5 N" ~) U( u( L9 U dp.cArgs = 3; $ q7 m/ Z9 u0 G1 p: L0 ~ dp.rgdispidNamedArgs = NULL; * w+ g1 d$ \9 q$ C6 |- p% D dp.cNamedArgs = 0; $ O! R- O, k$ E # d8 ]5 N+ x6 F% `# U// Call IDispatch::Invoke()% V ^) O7 ^4 h1 k N2 A7 E
. s w2 M5 ]& B" ]( M hr = m_pDisp->Invoke( ' I; m Q& N4 r/ z pokeID, 1 b: @! W/ S! i) i IID_NULL, 5 G' I) P, t, {7 \1 o7 v LOCALE_SYSTEM_DEFAULT, S" D% W5 E i& k8 r9 [ DISPATCH_METHOD, 1 ~' ~0 ~" V7 [2 E, K &dp, 2 V9 D! s8 W- `: Y NULL, " B9 c2 |( Q4 ^' G- d# P4 m& ]; M &ei,; ~0 r2 `2 q p3 d1 j. R
&uiErr); " ]" {! i1 x# j5 L A2 T3 k \$ q' [4 y
SysFreeString(topicStr); 0 w" P6 F+ f6 t3 {2 ~ SysFreeString(itemStr); 4 b% f1 r* b Q w SysFreeString(valueStr); $ T5 h& y# W1 y' G* R$ J/ n7 Y/ U2 G o$ W H1 m
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??? / O9 F+ |# V y. J0 e- L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???? . {! Z/ U" c& A& x% `' Z " g* j+ Y" _# a* L% X1 H8 Q6 p3 K7 R) }, D4 O! G/ z+ E9 |
2.这是request的程序 ) i; G5 s. r7 m7 |// Request a value from Extend # Q; f; X5 h% ]4 q3 w. }0 e// 6 o; u m/ z5 G! s( z) K- @ o3 f// Initialize the variant that will hold the BSTR. Set the variant's 2 W$ D. X: u! Y8 p+ Q0 i// type flag to indicate the fact that this variant holds a BSTR. Place the + f2 R0 ?; E+ ^" R- _/ _( V// BSTR into the variant structure.5 q4 D8 G/ Z% r9 h0 c
; c$ M' q+ Z* T, W* Y/ d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& B: t0 \- X! N4 k9 T o
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( Z' D- E+ H) w3 U
VariantInit(&requestVariant[0]); 5 _5 O# r7 ^5 o requestVariant[0].vt = VT_BSTR;0 ?: x4 R2 H( d7 g3 Y+ ^: K" ?$ m
requestVariant[0].bstrVal = itemStr; 4 C2 q# [6 E' L. V3 ~5 O0 m. \ % f! o `' |- C& m$ r! C topicStr = SysAllocString((WCHAR *) L"system");" C+ p h7 c3 U7 r+ T, [0 A t
VariantInit(&requestVariant[1]); 7 W2 O. o) U7 K; f) a
requestVariant[1].vt = VT_BSTR;5 {- a) [! @0 m
requestVariant[1].bstrVal = topicStr; 5 S7 k4 M+ A/ S1 y) ?& l; u5 z& G" W) m$ v4 `7 q$ k
// Set the DISPPARAMS structure that holds the variant.; F* I# A; _' L6 u; m) N# @7 y
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dp2.rgvarg = requestVariant; / Y4 J! d% Y; E dp2.cArgs = 2;2 V9 o* p* E+ r
dp2.rgdispidNamedArgs = NULL;( [! Z0 Q( ?" E, b, N0 \* o
dp2.cNamedArgs = 0; 1 s& M+ n0 J% R' }+ l: E7 ?) l2 i* T3 x
var.vt = VT_EMPTY; - \/ c0 i/ W& d6 ^* g0 N Z1 c# `! d9 s( h6 }( n7 z* u% ^
// Call IDispatch::Invoke() 2 ?/ ?: J/ S- a q& X" R2 u9 L6 _ " z @9 N1 m h; P, P2 F) l& P hr = m_pDisp->Invoke( 3 G: W7 A* u4 K requestID, " P* |" j4 y5 |, M; r6 `# R IID_NULL,! ~6 J, \ q! j# \
LOCALE_SYSTEM_DEFAULT,* K1 W" Z4 F$ v9 B7 ?5 r% b
DISPATCH_METHOD,5 s- d2 \2 p* b3 B H7 a
&dp2, 5 P4 r% O Q4 [# I. Z6 U &var, 1 {, ]+ ?4 E- u# ~ &ei,7 q; Y9 U3 s: I! n6 Q9 b
&uiErr); a3 t3 `" h# C4 O
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SysFreeString(topicStr); 8 w3 W" j2 e! E3 {5 l! d" P SysFreeString(itemStr); 7 m7 h8 d; }- L$ _4 t请问该程序是获得extend里面的哪个值? 3 J8 H3 b# q+ ]6 e( g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????