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:2 y0 j# u% Q4 x* e' O
Name = (WCHAR *) L"Poke"; 5 h, w: _9 s2 D5 f# V/ y0 p + {8 [9 U* \# \. c E$ Y. x1 G$ o
hr = m_pDisp->GetIDsOfNames (! T' b% H9 ^" G! x: ~3 ~
IID_NULL, // reserved# W# u% z4 q0 K
&Name, // Array of names to get IDs for . Y+ E# S! g5 o% O) x4 F0 m! S 1, // # of names in the array 8 p" F! m! i! b, ]' F' C* F LOCALE_SYSTEM_DEFAULT, // System locale; z. @$ W; r9 e# Y2 |3 {; e1 x
&pokeID); // Array of IDs to fill on output , r9 M' b. I4 `5 \5 @6 L% v$ U . R5 ]4 K, a1 T if (hr)) m# R: q) h/ P: \0 g9 e8 ?# J' Q
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MessageBox ("Get Poke Unsuccessful");8 P9 g) m8 g. @* E# J" G& E' X
return; % V7 k- i6 ]* d8 q ^) J; w }- y3 {) n, {% A5 o
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/**************************传递数据给extend**************************************/ # d! V3 U: ~5 ]( p. J, d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 G6 J5 u. X& b+ g
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valueStr = SysAllocString((WCHAR *) L"1232");8 H9 [: `) r/ M3 b
VariantInit(&pokeVariant[0]); % ^3 @7 Y; K- j) { pokeVariant[0].vt = VT_BSTR;8 @, z; t A$ J2 U. @& o' [
pokeVariant[0].bstrVal = valueStr;/ t& S, G0 ?) h( H, @
8 O+ {* V W4 j/ w$ Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 w. C5 S0 m7 n
VariantInit(&pokeVariant[1]); x& R6 U/ w" \5 C2 M& I
pokeVariant[1].vt = VT_BSTR; 2 q8 o8 F. u. p3 b pokeVariant[1].bstrVal = itemStr; U0 i, G0 ]" B7 c) D; a
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topicStr = SysAllocString((WCHAR *) L"system");# }- ?/ K* j9 P K9 }4 y1 R) @
VariantInit(&pokeVariant[2]); : ]2 v! e( G: A; ]8 T pokeVariant[2].vt = VT_BSTR;; k! U% F7 c# N8 ]4 A" S$ V7 R- P
pokeVariant[2].bstrVal = topicStr; , f6 \/ M% [5 u. n' |0 s/ W ! k% O h T$ M, R# \; R// Set the DISPPARAMS structure that holds the variant.0 T8 \' |2 e! V2 g5 }, [; c. d
; \# c. O. F* P ^. U9 C dp.rgvarg = pokeVariant;, o1 j+ ]7 S5 C4 |
dp.cArgs = 3;- L0 @' O( ^# U
dp.rgdispidNamedArgs = NULL; # K; t% ^ a z dp.cNamedArgs = 0; 1 O2 u' ]5 A3 N2 E. R* D7 x# `! L h: u
// Call IDispatch::Invoke() , G& [5 A$ R/ [; |/ Z) a9 q) h% d" }% A, E y! H. a; ^
hr = m_pDisp->Invoke(. ?( N* J+ Q) I. j" O
pokeID,, k1 y* ~( T* x$ e5 r
IID_NULL,0 J2 X0 O1 y4 Z, t
LOCALE_SYSTEM_DEFAULT,4 f* e, D' J" v7 f/ h: p
DISPATCH_METHOD,$ \) ]) I# }% f M$ x0 ?
&dp,) y* g: G+ j% m0 O
NULL,- n$ G d0 |% i0 n
&ei,$ j2 [" B2 V: d
&uiErr); 9 j3 e+ J& t; n& U- p2 |! ~1 S6 C+ t: ~* u
SysFreeString(topicStr); 5 E/ A8 ~7 t. f- x, `5 | SysFreeString(itemStr); + r8 w" T9 r, S4 h! e' \, M SysFreeString(valueStr);% Z' I' i) ~7 G/ T* \
~8 _+ A2 x# b: R. }1 E0 I1 v& e% A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???$ a! z! O: W& v% Q5 a7 d
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???? * f( _, n3 ?' N% c. f; Y( G. X5 u- K9 F- m
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2.这是request的程序 - u6 Q {7 T$ y* D// Request a value from Extend . Y2 w% W/ P1 i0 X- H// ! t* ~# J6 Q8 }3 d, s; o( A// Initialize the variant that will hold the BSTR. Set the variant's( H" w( u5 P4 t2 M- X7 g
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 z8 |* O @0 t6 W# ]/ G& E Z4 g0 `// BSTR into the variant structure. Y1 P- u7 @& w# X- B( V; s4 X; s* m! s# b& I
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; {2 {" j' e; s, s9 } ; C1 R. T7 q Z; r/ X. l! Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - G |* C- p; Y% Z; P$ Z VariantInit(&requestVariant[0]); 1 t' }2 K0 m. T* }4 v$ |' v5 ] D* s5 Z requestVariant[0].vt = VT_BSTR;8 q0 ]! \ G' t" ]. C( V3 Q$ `
requestVariant[0].bstrVal = itemStr;' @7 s* J' g. C) w: V6 _( S0 S
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topicStr = SysAllocString((WCHAR *) L"system");$ h7 g% u2 ]' p: E! n( ~; V2 f4 V
VariantInit(&requestVariant[1]); $ }# }1 Z1 V R" e" \' V requestVariant[1].vt = VT_BSTR;5 k, Q i( `" T0 k
requestVariant[1].bstrVal = topicStr; 3 H$ E: g2 o/ p # ^; t; c' E% M( O Q3 \// Set the DISPPARAMS structure that holds the variant.4 D' g* i, D% |( }5 ?
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dp2.rgvarg = requestVariant;0 _" S/ o9 t r/ b' }8 B6 F" ]* M
dp2.cArgs = 2; 9 j! a3 M2 G& @* l" i/ ~ dp2.rgdispidNamedArgs = NULL;( j' n5 k9 S! S# C, ~
dp2.cNamedArgs = 0; 7 r7 |3 x4 o+ Y) s6 v! _" b6 Q- _- ]+ A9 s
var.vt = VT_EMPTY; + D, Y7 k/ y! e& K9 S + f* C$ k* M9 l8 G5 k; j// Call IDispatch::Invoke() $ |+ b q3 z6 n$ o : v+ ^2 k9 |! \6 Y- [/ W9 [/ {, P hr = m_pDisp->Invoke(; l2 g) g+ e0 O1 q
requestID, 9 P# S$ }- `+ \' z) S4 R& B% z IID_NULL, |% _( ]0 W6 s4 Z+ D
LOCALE_SYSTEM_DEFAULT, 4 j) Y9 n1 H; h, d; S DISPATCH_METHOD,6 R+ z; ]* @! Y% l
&dp2, f* r# d& J9 k) g) S; F7 n2 b
&var, ' c9 R/ }: ~' Z* S, R &ei, 3 ?4 `, O& O" \" g0 B7 r &uiErr); 1 w( i% p: |' Y9 J & d2 @, S. K2 G4 f SysFreeString(topicStr);9 N& r- T% `, U- T8 P
SysFreeString(itemStr);! P( B9 K( A D& T5 e
请问该程序是获得extend里面的哪个值?( U# R% C* J" T
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????