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: ( f m) O3 \& I4 D+ @- oName = (WCHAR *) L"Poke";& k( j& |8 V5 s" T- Z8 R% r
# A' w; S5 B; ]; d- `5 F- [ hr = m_pDisp->GetIDsOfNames ( " ]2 g: Y+ h, G& @ IID_NULL, // reserved' I" E8 T* b; }* _
&Name, // Array of names to get IDs for Y: z( ^, J6 F
1, // # of names in the array G* Q( q9 X' o. Z LOCALE_SYSTEM_DEFAULT, // System locale + Q9 ]$ t& G2 t, r+ y5 b &pokeID); // Array of IDs to fill on output1 V* W4 T8 k0 }+ A7 v" D: K* D
8 A' g$ Q6 p& f* O; W# x# J if (hr)8 S8 h3 K1 h* k0 V0 z/ n2 C" d/ u3 R
{ * c9 M7 `$ z# N+ B MessageBox ("Get Poke Unsuccessful"); ; f9 P) j+ e c5 W( L5 \ return; : u' a- f& T! x/ I } $ b2 b& V7 v* S6 V8 i 8 o, N" q! R- F9 T* |/**************************传递数据给extend**************************************/4 c; g3 B/ g- F! o: U3 ?' A4 S" n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( \$ A. a, g2 W; N6 s 7 N \3 U: [1 K& s* O6 y valueStr = SysAllocString((WCHAR *) L"1232");0 h1 N& Q) S/ {# D) b
VariantInit(&pokeVariant[0]); l# G+ |0 E+ S# s& D pokeVariant[0].vt = VT_BSTR;2 F! Q, y3 Q4 O0 |, S7 m
pokeVariant[0].bstrVal = valueStr;* n7 R7 H! i8 n' e" V
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. e0 D0 X% q Q: i9 e
VariantInit(&pokeVariant[1]); 4 `" D( w& o+ z( U pokeVariant[1].vt = VT_BSTR;6 J8 ? b6 P! T8 ^2 }
pokeVariant[1].bstrVal = itemStr; 9 V# g% |) L, L & L. q; f: w2 K, N topicStr = SysAllocString((WCHAR *) L"system");% g+ F! y0 f! s3 l# }
VariantInit(&pokeVariant[2]); $ z% w) U E( G- p; e! F pokeVariant[2].vt = VT_BSTR;" j, C6 @7 f& E3 J( x
pokeVariant[2].bstrVal = topicStr; i/ k. V6 U; x5 {# [3 ~ 1 D# _% S2 V1 Q. c// Set the DISPPARAMS structure that holds the variant. X& r V, T& r1 |8 d! Z& q X" s+ P
7 k. s J$ K* y dp.rgvarg = pokeVariant; " Q# F* X+ l5 F2 Y: k: {' b& { dp.cArgs = 3; % H2 ~8 @3 j2 e+ p _ dp.rgdispidNamedArgs = NULL; 8 d/ f7 g$ Z2 b dp.cNamedArgs = 0;+ R4 j* O2 ], n* H/ Z) H
5 O; f$ Y0 ]4 y" i// Call IDispatch::Invoke() 2 Q* c" s) D+ j: [' p3 ]0 e$ P
hr = m_pDisp->Invoke(0 u% e# I9 Z% J$ A" o
pokeID, : ~+ W* B3 |' B& \. u7 H0 j IID_NULL,, A4 q. H6 D @3 W# F% n
LOCALE_SYSTEM_DEFAULT, ; f3 g" b7 j9 I8 {& e! | DISPATCH_METHOD, * \& f, ^' {" v &dp,+ E+ Q4 e" r- G; R$ U; N- {
NULL, & C' v7 c: M7 j5 n* I &ei, 8 t* p# k& f. H. V9 n& m+ E6 r &uiErr); v( J+ [# l6 e; n; u 3 f8 K1 E! a+ T SysFreeString(topicStr);1 b5 |' F! g. [ x, [& w
SysFreeString(itemStr); ; i) s: G, ?0 O. b5 A$ _ SysFreeString(valueStr);+ W6 P! c2 Z7 X7 Z( }- E- n6 w
, L \, f. y0 M6 s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???8 L/ p* P: w: P v9 t4 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???? # S; B& m# p% g& ]& c+ z. [% z6 ]# z2 x2 M
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2.这是request的程序 % g7 h( i, D/ U- @" R// Request a value from Extend # ?: O% h* ^" v" q1 E) ^; P* C4 P//. E2 h( z6 `& k, s7 w
// Initialize the variant that will hold the BSTR. Set the variant's6 S' g/ H4 E% l
// type flag to indicate the fact that this variant holds a BSTR. Place the $ c; E" M9 V- |* f$ m4 B// BSTR into the variant structure. 5 {6 g& I5 p. ]7 a0 Z6 ~8 P% Q: Z& ] o$ ~
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' m# A; c1 m" Q. W( I6 Y # {9 Z8 {3 K$ F: ^) n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & j3 c4 O7 r3 M6 L* z* A VariantInit(&requestVariant[0]); 7 [) x: X. _9 c
requestVariant[0].vt = VT_BSTR;, H1 \) S: `, P0 q
requestVariant[0].bstrVal = itemStr; 3 ~' }, ?* E) `: _9 w( R% V) {7 Y( W$ Z0 j4 R; @
topicStr = SysAllocString((WCHAR *) L"system");- Z- R$ r& x! B5 f$ J1 \; n/ \
VariantInit(&requestVariant[1]); ' c" [( [$ x- e1 u5 j, i9 B2 O6 a requestVariant[1].vt = VT_BSTR;! k9 V" B& N* `2 {: P
requestVariant[1].bstrVal = topicStr;+ z- z0 b0 p1 o. E8 F
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// Set the DISPPARAMS structure that holds the variant.2 I0 R, v& l! h
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dp2.rgvarg = requestVariant; 8 ?* B, d- ]2 u2 K dp2.cArgs = 2; m+ l* h. V9 w6 q
dp2.rgdispidNamedArgs = NULL;, e( ?8 ^7 ] y; W
dp2.cNamedArgs = 0;# K# }& N& A }: a7 m
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var.vt = VT_EMPTY; 6 ^! L# {8 @ M* E) K2 E! w! D! e- E; l
// Call IDispatch::Invoke()- R/ E' H) P( B6 P- D# n
) q$ u) m9 q% M+ a hr = m_pDisp->Invoke(4 @ t0 W9 F% K3 o/ \
requestID, 3 [5 E4 D/ p+ B/ @ IID_NULL, 9 k3 B7 h0 J2 f2 q3 ` LOCALE_SYSTEM_DEFAULT,; U" F% C5 r5 [) s% k$ i3 j, N
DISPATCH_METHOD, 5 Y- k: c" \& o8 O# O# [ &dp2, 4 ^4 @+ \. B( o% m2 o &var, 0 o% p E; p( P: X* }& d# v3 t( K' l &ei, $ c4 ]# X% Y6 }6 M &uiErr); . g4 X. @* Q+ g b$ E+ u9 A- ]# D' u. o8 E
SysFreeString(topicStr);- _. w% o* \1 \0 F( i. [& S* n' L2 i! D
SysFreeString(itemStr);( @2 J1 x+ G- H( F. t
请问该程序是获得extend里面的哪个值? N- e0 H3 Q1 R. Y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????