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: - C$ e% Q6 h5 t' W( JName = (WCHAR *) L"Poke"; , [; Q" B" _+ U/ ]* w * L8 L- I W6 ^+ {: ~/ j( | hr = m_pDisp->GetIDsOfNames ( $ S( q# C! b3 J+ n; p3 T" l IID_NULL, // reserved) u7 y3 z. Z- X) S+ l' P% A8 x
&Name, // Array of names to get IDs for2 G: S, t. X( k0 j; V j! p
1, // # of names in the array4 b/ [- j% Q) F T0 x" s
LOCALE_SYSTEM_DEFAULT, // System locale + `3 W/ x. b3 V" I &pokeID); // Array of IDs to fill on output5 s' O1 z' c% }' d
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if (hr)# l: `7 ^8 r) K; l9 {& A
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MessageBox ("Get Poke Unsuccessful");" u; o, M: d1 J/ v# q0 d
return;" T3 m: l- ~2 Y! r- y5 c
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/**************************传递数据给extend**************************************/( p/ ~. \4 B* e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" W5 K; K* l' U: v4 l0 w
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valueStr = SysAllocString((WCHAR *) L"1232"); % Z$ h. \; j* T0 W' ^/ q! N VariantInit(&pokeVariant[0]); ' V! b+ F# p3 `4 b( Y
pokeVariant[0].vt = VT_BSTR;( c' M" q/ D7 e; X: J1 l# @6 S8 F k0 `
pokeVariant[0].bstrVal = valueStr;% s. R E. X# j' H7 ~0 z2 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" @1 e M3 L1 ]" u6 d
VariantInit(&pokeVariant[1]); 3 d0 G- H; }# n% I# K$ P5 d
pokeVariant[1].vt = VT_BSTR; * D. u- v# Q1 A3 k# [. h) @4 A pokeVariant[1].bstrVal = itemStr;- P2 `9 b: s% S. F" }& K, q4 [. B
$ I) T& w$ x; k+ Z" } topicStr = SysAllocString((WCHAR *) L"system");! z% D c" O5 m1 g# y5 E6 t4 N2 X
VariantInit(&pokeVariant[2]); & b; z+ X; z& h7 R6 I# o
pokeVariant[2].vt = VT_BSTR;% A- l. Y- {" L
pokeVariant[2].bstrVal = topicStr;' x6 C9 H k& q5 i" s, F0 |
. [4 z w% x6 l" p, D// Set the DISPPARAMS structure that holds the variant. : s! _ ^9 w1 I, T) l" X . \: r9 _ `4 r) X! B dp.rgvarg = pokeVariant;* U) d' z# p" v" f5 q4 t6 e
dp.cArgs = 3;6 d" H! ]8 n0 I& \
dp.rgdispidNamedArgs = NULL; . D- \0 s8 ~3 N' `+ S2 u# F( c dp.cNamedArgs = 0; ' J; z8 p4 b/ e/ p; o2 G , N7 u4 M2 u, o// Call IDispatch::Invoke()) ^( g/ A9 j9 z( M/ f
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hr = m_pDisp->Invoke( 7 y6 b) o# ?% J0 C; d+ G. g pokeID, : A3 m5 {3 Q: d IID_NULL,& z3 Y1 T o9 x% |3 d! F) l
LOCALE_SYSTEM_DEFAULT,$ G- M: C8 X D0 H" H" j
DISPATCH_METHOD, ; s1 C; Z$ ~8 ?% T' f+ a6 }# I &dp, . Y3 `3 h( [% p2 d NULL, u. `. Z# |) D5 Z1 B* g! a &ei, 3 c+ e8 b. C8 J3 I+ \2 o" e* Q &uiErr); . X/ R- P- {' E3 l/ r- q- P6 o* q0 G- y8 `$ a' {7 W) B7 B O
SysFreeString(topicStr);3 x8 Z) ^/ ?! a5 ^
SysFreeString(itemStr);, D/ U0 {6 O* q, }, Q
SysFreeString(valueStr);; v- U( U1 R- k2 z
7 j. W( O( s g- D, {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??? ; w* d2 X, E% }0 H7 h6 c+ [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???? / d; F4 S- {+ e; c: k0 \ - R+ U: H1 p8 }/ V9 T& ^! R4 d* a+ _" }' B& U
2.这是request的程序 / y7 w3 C% [% p2 X// Request a value from Extend 1 o2 P+ v/ O. S2 O; Y//( P) y; t$ v) a: u
// Initialize the variant that will hold the BSTR. Set the variant's6 z) s, t6 I6 {6 E
// type flag to indicate the fact that this variant holds a BSTR. Place the# T$ B9 l: o+ Z4 h
// BSTR into the variant structure.: r. t G/ h( M1 g7 C
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: |8 w# T/ z( c2 v
7 M- c: Z5 ` r2 D0 S/ }; f6 A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 z' E3 g2 a. N VariantInit(&requestVariant[0]); " F8 g! b1 S# i P5 e: D% j6 E6 N' S requestVariant[0].vt = VT_BSTR; % a }7 q8 f& z' k. p9 K requestVariant[0].bstrVal = itemStr;. ^/ Q) [, B" \: u; Z
( {8 w; t9 {; y* |- {* R- ~ topicStr = SysAllocString((WCHAR *) L"system"); 4 L9 {) k0 V/ O9 F VariantInit(&requestVariant[1]); 7 t& {7 {. u6 m0 c- ^7 T
requestVariant[1].vt = VT_BSTR; 0 Y; K3 G) p$ B3 m6 [- ^6 E requestVariant[1].bstrVal = topicStr; # O4 q R7 o! u( D- t/ K+ F" y8 H - h# l4 P6 d8 z* P$ @) E// Set the DISPPARAMS structure that holds the variant.* l7 G I" ]# s7 X4 N& j$ U: X
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dp2.rgvarg = requestVariant; * {' f% I, i. c+ e6 @* r$ x dp2.cArgs = 2; " z/ O# `$ K3 f$ h* c8 N dp2.rgdispidNamedArgs = NULL; 3 c4 ]. l H, Z, d6 k) ^ dp2.cNamedArgs = 0;% x' A) r7 o3 h: m
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var.vt = VT_EMPTY; + @$ H% C& l( H7 C( H, m( B3 E, a) f: d- n# G/ |; `
// Call IDispatch::Invoke()$ ]' z2 q) b, c5 B
2 O* J6 w [0 j. t hr = m_pDisp->Invoke( 0 @& @1 W% q7 r% C: z9 E requestID, / J7 u( O$ _$ _/ F IID_NULL, $ d+ n4 [4 E& b( W# _ LOCALE_SYSTEM_DEFAULT, 3 S3 |8 w& |) ^ DISPATCH_METHOD,- @% ?; i7 h2 @" s9 }
&dp2,( F+ G% j2 _! |% l
&var,7 i; W0 C& G* i* G [3 m) K2 p
&ei, 7 m" ?1 I7 ^$ A9 ~' q6 _ &uiErr); + U/ Q- S: _4 }& u, N' c+ J5 t# C- `! k/ l( E& x
SysFreeString(topicStr); # j- M8 V) {2 r" e6 } SysFreeString(itemStr); 5 ?* {5 s, h- J7 O' I% }! Z请问该程序是获得extend里面的哪个值? 3 R6 e$ H- k; ^% l& `2 \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????