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:, P( J9 E4 u/ e, |6 G1 n1 \7 y
Name = (WCHAR *) L"Poke";) t. S$ x+ }5 G! N9 r8 y
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hr = m_pDisp->GetIDsOfNames ( # i) D" y! L ?7 A3 [! I IID_NULL, // reserved1 u! v V* B" h- i
&Name, // Array of names to get IDs for0 l% c3 \) T) i, l K3 E) O
1, // # of names in the array- c# m5 S3 @! D% e" G
LOCALE_SYSTEM_DEFAULT, // System locale( j: P6 D. {. k8 L/ b% d: E
&pokeID); // Array of IDs to fill on output7 t8 K( q1 q2 W8 N# Y+ k* A5 i
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if (hr) ' q3 T. w9 S+ q L& ^ p5 h2 j { 9 e+ j Z1 B2 ]( f& G9 l) m; U MessageBox ("Get Poke Unsuccessful");! p1 G# r- G" @2 z
return;6 y5 E7 Y, O0 n0 V: k
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/**************************传递数据给extend**************************************/) U3 W; b& G2 w! e" E9 k& [8 Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 b% y. |2 i7 T% B0 L" ^ , o/ N# q: K) R- H# X$ Z5 Y7 o
valueStr = SysAllocString((WCHAR *) L"1232");% d& |$ U8 x% N0 G/ U9 X! C
VariantInit(&pokeVariant[0]); ; o8 q) O2 y) ?5 \+ p# ?8 R/ C
pokeVariant[0].vt = VT_BSTR;* _5 G! o2 Z! s( ?9 L5 w
pokeVariant[0].bstrVal = valueStr; _- V2 f! s, W: C7 l+ r9 M; |- G6 b4 R) k: D4 c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . d& t6 Z9 O* D/ i2 ^ VariantInit(&pokeVariant[1]); * t8 ^4 N6 h" K! d K
pokeVariant[1].vt = VT_BSTR; 1 X4 J! I7 l: ^$ Y) p pokeVariant[1].bstrVal = itemStr; 0 K; j# F( H2 L& M& { - t* a# U* q) s" k topicStr = SysAllocString((WCHAR *) L"system");2 @9 A5 \1 k1 X& o6 X. b- Q( D2 ]5 h
VariantInit(&pokeVariant[2]); . G. X) b% V. f. s0 C( z6 _ G
pokeVariant[2].vt = VT_BSTR; ) _% R. ?: {2 U: D4 [ pokeVariant[2].bstrVal = topicStr;3 f4 p. P- t. \3 I: Y; T: Q- C5 x$ p& n
+ O" i/ A+ D1 c) g% C( `' g6 f// Set the DISPPARAMS structure that holds the variant. * G% L7 i2 B) C& o 5 n) A1 w/ Y& ?/ J' I# C dp.rgvarg = pokeVariant; / ?/ N( S1 y5 X- A v dp.cArgs = 3; 1 j/ _& W6 F8 J& T% H) _' N dp.rgdispidNamedArgs = NULL; # k+ p2 E# n: \2 C2 {" a dp.cNamedArgs = 0; ; E3 X- ^# _0 v; S6 U4 q3 y v* w2 @7 `
// Call IDispatch::Invoke() $ E3 q" P9 a$ n# W% x& p) l: A* r7 n% ]5 X U) a
hr = m_pDisp->Invoke(3 Y6 m5 b* k. w6 V, y' n! G
pokeID, 3 G2 N: R' Y/ v, W IID_NULL, 0 S7 [ {4 X. m5 d3 O1 b' G LOCALE_SYSTEM_DEFAULT, 5 @; V, ^; L9 _' c! r# w5 J! u DISPATCH_METHOD, ' E: J$ X" k: |' j5 j j9 a+ u &dp, 5 U) P/ a( W9 Q& `% s" d0 p NULL,! d, O. [3 U2 l! y: r
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&uiErr); ' c1 u2 M* l4 D+ x ! ]/ N: z+ U8 D* _2 P g& h SysFreeString(topicStr); % |8 w" m+ K. |8 _0 B8 i- v$ ` SysFreeString(itemStr);# ~: Q" f1 C; K' @1 `- L" w2 ?9 x
SysFreeString(valueStr);$ z7 ?: W& N( w7 r' S
2 ]6 ~$ u/ K+ L$ z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??? ! Y( Y, ]- T8 H1 Y# x8 ?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????" M0 b) u. |: P3 p& e K# s
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2.这是request的程序 Q5 i# j0 ^4 Z7 x// Request a value from Extend; y) }5 z+ ^: @. Y: V8 M: Y) L' j
//5 x5 {7 a8 y2 N( @- l, B- r( z
// Initialize the variant that will hold the BSTR. Set the variant's0 e7 G* O* w) r; P: o" S7 n+ |$ ~
// type flag to indicate the fact that this variant holds a BSTR. Place the# l7 X' d! F* H+ K; C- T5 v
// BSTR into the variant structure.+ m t- |3 A* g7 r
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 A3 U* ^# A* l1 I3 B. Z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' e/ I6 \7 |9 |0 C
VariantInit(&requestVariant[0]); 8 \! R- K6 s4 r3 @* D- ~7 G4 E; _
requestVariant[0].vt = VT_BSTR; # Q, b$ N7 Y9 b1 [+ H3 Z I+ S requestVariant[0].bstrVal = itemStr; F' ]! @" F f/ ?, W1 ]5 _8 i! A4 F# _ , E- t; Z# n' _: q1 H% Z topicStr = SysAllocString((WCHAR *) L"system"); # B6 B/ I/ H8 h1 i. p6 U, w VariantInit(&requestVariant[1]); * |" R! t8 I% H8 }6 u. J( e# V) a requestVariant[1].vt = VT_BSTR;9 z3 y k5 ~% x" h+ X9 M3 P- ^
requestVariant[1].bstrVal = topicStr; 9 J0 ]. ~; h* R- c 3 D, E+ `* Z1 j5 A: @# M// Set the DISPPARAMS structure that holds the variant.: y4 a0 H2 r. `" Q" P
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dp2.rgvarg = requestVariant; # }* U7 R4 k% {0 D dp2.cArgs = 2; + X" N$ I) F* N& i! `4 \ dp2.rgdispidNamedArgs = NULL; " o9 o- ?9 [, _2 f dp2.cNamedArgs = 0;- k% o* O7 N/ K A8 B( Z
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var.vt = VT_EMPTY;% H. Y. G. Y1 r$ o: t1 @, u