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:- P8 O6 s; l$ Q' @) c
Name = (WCHAR *) L"Poke"; # S( N0 y, t2 o& R" ~ ! l, I9 R; a- x; Y hr = m_pDisp->GetIDsOfNames (9 B3 Q8 H( u& ] w9 H9 g
IID_NULL, // reserved( L, ?3 r! w, X; C
&Name, // Array of names to get IDs for+ n9 q- T8 n7 M. Z
1, // # of names in the array8 Y3 f5 K; q2 p: g5 {' m, n
LOCALE_SYSTEM_DEFAULT, // System locale) Z) x# Y( Q8 {+ Q, c1 ]
&pokeID); // Array of IDs to fill on output, m5 D8 }, {6 G
4 m& |9 k$ u9 h; {0 o& `! L _1 g if (hr) % o0 K4 O/ x1 N { a7 x" X& q+ k+ l7 R: m
MessageBox ("Get Poke Unsuccessful"); 2 c/ @( n2 R' F: F! d1 v return; 3 I8 y$ t! G/ U# k1 U } & M$ B( {! M3 w4 Z$ x7 I. |- T" }% D6 I4 I4 Z5 c' ]3 m* Z
/**************************传递数据给extend**************************************/- [* P3 W; W( F- q9 }9 P5 h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 v. n3 m6 P4 a3 L7 D
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 v9 a [/ e; y0 j( B7 @$ R" T VariantInit(&pokeVariant[0]); 8 V6 S, u* ]+ v* v7 G9 D& b
pokeVariant[0].vt = VT_BSTR;" [( ]& Z" ]- H4 C
pokeVariant[0].bstrVal = valueStr;( ]8 d+ v4 I; {. O+ @/ _' y7 B' o
9 `6 P, }* s: m+ `+ }. ^. A# d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' j$ q* \2 i! v" g" @# _- _ VariantInit(&pokeVariant[1]); 9 p. \* O, H( Q* H) g( G9 E1 ^! O
pokeVariant[1].vt = VT_BSTR; : r$ U$ I( [6 z3 A% `7 K/ D5 X4 o, l pokeVariant[1].bstrVal = itemStr;3 Q0 ^, R' |) n. Z" d- c% M
7 j+ E, Y: U/ p% A// Set the DISPPARAMS structure that holds the variant.' _- m* N( d7 I0 E( Z/ j* ]4 A4 c
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dp.rgvarg = pokeVariant; 7 r; I9 r _! S' u @. F% I: p( e# a* ` dp.cArgs = 3;8 e; U1 m: a% c- R
dp.rgdispidNamedArgs = NULL;6 s, o1 F/ J3 f. C
dp.cNamedArgs = 0;( }) n5 i: e& L# f& O
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// Call IDispatch::Invoke() : M6 p( R9 u8 Q. d/ b) Z& d4 H* m+ f. H
hr = m_pDisp->Invoke(. c: i2 c1 Q1 j# i: T
pokeID, 7 ?) E7 Q3 R+ C: d( I+ n E. P) M IID_NULL, 2 z, G$ ]0 T- s' p) k LOCALE_SYSTEM_DEFAULT,. c [* k" ?* l: l
DISPATCH_METHOD, 5 e$ q! Y( K3 C& H5 K &dp, 8 q+ w8 j. v/ q$ f3 L! b4 k NULL,- t. `- V# X; o/ c8 d& X* q* c0 D1 x
&ei, ! G- J! c: l8 c9 P- o0 o& u) \ &uiErr); # f: Q6 f& ]* a7 @$ `% W4 r' e) @ G4 P4 }3 c( ^ h Q
SysFreeString(topicStr); F2 G0 b" \0 l8 H" F5 V' H( r
SysFreeString(itemStr); ! w1 [) P3 M/ {* x: g SysFreeString(valueStr); % h' I& _3 h, L% z 3 U9 H- i+ {; g) `+ G* V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???6 ~+ Y" F7 ?8 w
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????, [/ h# f' A1 B' O: A7 g0 B
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6 f0 ~6 B: P! l5 ~: m3 x3 t7 f2.这是request的程序 ' Y) Y/ }" Q; V* I" {8 [ G// Request a value from Extend0 z0 [6 L! v# G. F
//* N8 i g2 E. M( `7 ]% h O7 A
// Initialize the variant that will hold the BSTR. Set the variant's" a$ c( v; c2 q; @! }6 ~4 J* ~* A
// type flag to indicate the fact that this variant holds a BSTR. Place the ! F! Q0 D# e$ I1 ]// BSTR into the variant structure. + i j6 q! M$ m7 E( I. J# ?1 l9 o + `3 E& w. {' g, L' ?2 j5 F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 x% U4 _1 u2 N0 O' V" f
9 t8 m1 @& c/ w& a' j# `6 A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 x1 l* b3 I: a% T4 J
VariantInit(&requestVariant[0]); ( v4 e1 u8 L' A+ @0 |
requestVariant[0].vt = VT_BSTR;* U( E, h: {, f) z4 Z% R b2 M y* z
requestVariant[0].bstrVal = itemStr; ) j1 I# ~- \4 I2 @; z! H2 d $ a4 s, Z: x7 U1 H4 L topicStr = SysAllocString((WCHAR *) L"system");# N6 Z! b: P2 s% D
VariantInit(&requestVariant[1]); & @6 s1 h: T1 ]
requestVariant[1].vt = VT_BSTR;( Z, W6 A$ O- k( H& l
requestVariant[1].bstrVal = topicStr; & V; {% A2 H* T0 h# O6 v) v& i2 \; @
// Set the DISPPARAMS structure that holds the variant.( \/ P; |+ q( r8 _3 w& R) U2 u