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: * u+ S5 J j1 n% [5 HName = (WCHAR *) L"Poke";% W6 Y: `; o S: T# v7 X
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hr = m_pDisp->GetIDsOfNames ( # A! J5 v n; o* J+ R7 N& B IID_NULL, // reserved 8 h) V" f5 s* [2 _: N7 S* m) r &Name, // Array of names to get IDs for / K6 O6 n; J7 ]' ]* A 1, // # of names in the array( [0 R* W! j" ]1 H0 ~6 ?2 l$ N
LOCALE_SYSTEM_DEFAULT, // System locale% p) v$ l( D6 s/ W( {+ p+ m
&pokeID); // Array of IDs to fill on output0 X" |1 C) P' l. P! T0 e% Y
7 U( w* t* L. D$ T if (hr). j8 i1 b# v( [' P" K- C, d
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MessageBox ("Get Poke Unsuccessful"); ) `" j1 [4 J4 v, ?5 ~- l `, M3 ~ return;* e7 @- E- I# f) P% l& @( c1 V- e
} [* r: S( W: ^0 W9 [' ? ( u' O4 `1 r" e. d ^/**************************传递数据给extend**************************************/ 3 B4 U3 s* Q( h- h1 V- ~; c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% H( l6 ~, z, ^
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valueStr = SysAllocString((WCHAR *) L"1232");" I% `: d1 g1 z# ]/ P
VariantInit(&pokeVariant[0]); 1 }4 K/ V( C Q, Y1 g pokeVariant[0].vt = VT_BSTR;1 w& t. |) G$ }2 d$ ~4 [/ @
pokeVariant[0].bstrVal = valueStr; " X% d. ]' g, @' [& E& S/ c2 W. y 8 a3 U- B* X& P6 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 R8 m* {% E) a O8 W
VariantInit(&pokeVariant[1]); 3 Z$ [( l6 Y6 z* h% W pokeVariant[1].vt = VT_BSTR;+ n, Z* d/ V/ C' {( w. H
pokeVariant[1].bstrVal = itemStr;3 \' [+ Z7 T* r
% G' S) S6 Y1 j. _. |1 ~2 \( X topicStr = SysAllocString((WCHAR *) L"system");' ~8 Z4 R7 u3 O1 t( t
VariantInit(&pokeVariant[2]); & _& l% m" E! q' U2 ~ U4 T, o pokeVariant[2].vt = VT_BSTR; [5 E3 k, i7 ]! j pokeVariant[2].bstrVal = topicStr;+ X! N, j/ Q D
2 G; W7 A& M9 K4 I8 v/ w// Set the DISPPARAMS structure that holds the variant.# j/ M0 G( H [* |
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dp.rgvarg = pokeVariant;! g; O9 L/ T( H$ `3 e4 j9 M4 z. A3 |3 S
dp.cArgs = 3; 2 M8 k& _3 |' H j% Q dp.rgdispidNamedArgs = NULL; 5 o0 E% e$ d& E8 r4 c; m3 }1 ~5 L, c dp.cNamedArgs = 0; 0 m3 @1 O8 x4 h7 i1 b6 X3 }5 o6 l 8 }8 }9 n. N8 E// Call IDispatch::Invoke() ' d: O, k# _1 [ , j2 p+ g6 I9 {" u4 p, a7 } hr = m_pDisp->Invoke( $ ]! U5 H! @* H# |7 R pokeID,5 U+ y8 O% ~9 L9 R! Z$ x
IID_NULL,5 \4 F- J$ o! O P% Y: H- ~
LOCALE_SYSTEM_DEFAULT,' D$ y2 @% q% J, \6 @
DISPATCH_METHOD, " `5 T9 q# h' \- Q &dp,7 K& T( n- J. ]" A! z% l: E1 A
NULL, ( j) X- @! w$ X& Y. i$ z, p &ei, " ~) U1 G) V7 u &uiErr); 6 q1 t7 o/ B# L9 } ( `* ~, L% H, ^* }0 Q SysFreeString(topicStr); 8 Z, X( T& t; m/ b SysFreeString(itemStr); . k" j @+ S! B G. d+ \! }0 a' N SysFreeString(valueStr);2 q, f9 j' [" Z- x- _3 D* v8 u
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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???$ b* `2 T; 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????3 X5 A) t, B: v7 B6 V6 e" J
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2.这是request的程序 0 P0 x: _/ B5 y( P2 B// Request a value from Extend1 u" q" t% N+ E/ n9 L3 h
// % J# _( D- G- A5 N) L! G, O// Initialize the variant that will hold the BSTR. Set the variant's$ i' ^5 N" W7 S% _0 v
// type flag to indicate the fact that this variant holds a BSTR. Place the - D0 Z i( s" Z# Z0 I9 b// BSTR into the variant structure.4 D' B! R8 u6 l( ^
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- J5 M; o! P! s% O" Q
6 X# a; N9 I3 U. j; f: O. L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! {) `0 ?5 b# s; W3 D8 K% P! W
VariantInit(&requestVariant[0]); ' R6 D. g. d: W! |2 M6 S
requestVariant[0].vt = VT_BSTR;9 D/ [9 h- _% t5 ]" }+ F
requestVariant[0].bstrVal = itemStr;. t% ^ L, i5 m; M3 J7 W" e
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topicStr = SysAllocString((WCHAR *) L"system");8 X9 I. ^# F; P2 ^( e+ e3 |" k# u
VariantInit(&requestVariant[1]); % B: ^6 s0 ^$ n! Y1 M; b% p2 t+ E7 W; l requestVariant[1].vt = VT_BSTR; 5 H1 x; N2 m$ o; V% J9 ?. c requestVariant[1].bstrVal = topicStr; $ @7 @% I) }0 y1 |1 | T+ B3 R) ^7 V6 k* B// Set the DISPPARAMS structure that holds the variant.6 f4 b, f. n4 z3 U
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dp2.rgvarg = requestVariant; / H$ X6 l3 w/ X) b& { dp2.cArgs = 2;! s! M7 B) m# K6 ~! @+ D/ [( [6 M
dp2.rgdispidNamedArgs = NULL; " b* \" Z! H6 `5 F dp2.cNamedArgs = 0; 4 Y& c8 r( S* P6 ^1 f * A7 T' a5 H" E( A t9 }* y var.vt = VT_EMPTY; 6 C& F6 X3 C% }& Y+ }( J: K7 M2 n) \" x; D# n7 H3 n. U: f
// Call IDispatch::Invoke(). B9 L |2 x" a1 R
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hr = m_pDisp->Invoke( 7 w" |! L# g0 W* z- } requestID, ; F6 b; x+ H; f5 h IID_NULL,$ f0 ?8 F- s, X
LOCALE_SYSTEM_DEFAULT,0 w2 s7 ~# e! s$ f
DISPATCH_METHOD,2 k% B% E7 U; Q4 g) n- J- w' _& Y1 ~
&dp2, ' o- C. ?. |) | &var, 7 \6 g, c# \+ {5 d& [$ b5 e &ei, , G+ c( v9 I7 O: a &uiErr); - e" B: N1 e8 V V" h2 X# }( h1 u' N. o+ D: T% h( f
SysFreeString(topicStr); 1 s/ b7 N: g P5 b( M: V9 { SysFreeString(itemStr);/ D( t' _. x' ~$ C- t* ^, K) V8 a$ Y
请问该程序是获得extend里面的哪个值? ! x1 G( ]$ t7 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????