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: 9 ]5 q$ R ?6 {: |* xName = (WCHAR *) L"Poke"; 9 W5 x% W7 W) I$ Q1 o, } & }* h' D" [) ~+ c5 L
hr = m_pDisp->GetIDsOfNames (8 p/ j. ~2 d& q/ X% [' | c" O
IID_NULL, // reserved ( W# B% E& y5 r- z6 ?! U4 h& B &Name, // Array of names to get IDs for 7 a, e" {7 Q# n( ? `7 L1 m! g+ u8 k5 O 1, // # of names in the array" l9 x7 s/ G% n7 D8 E; l
LOCALE_SYSTEM_DEFAULT, // System locale7 ?8 F% c: w. j# F
&pokeID); // Array of IDs to fill on output $ k2 s/ }# g$ v% K + A' k+ V: n8 a/ c+ ` if (hr) ; u. z' e) y7 T {" F$ r8 R; I$ ]9 E% K O% d
MessageBox ("Get Poke Unsuccessful"); . N' ?! I; f1 f) R/ J# Q return;/ Y3 K ?' ~! I$ ?! E
} ; A( Y. \/ o; S ' T* O0 O! j, D- G- ^' f/**************************传递数据给extend**************************************/ - J; s; U0 F9 ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 p5 {/ i* V" O p& u
3 V& f+ @; N! _ B6 q2 Y valueStr = SysAllocString((WCHAR *) L"1232");* o: |5 I( ` r: m+ k; U6 {3 w
VariantInit(&pokeVariant[0]); 7 ^, t) j' u6 T+ ] n$ R pokeVariant[0].vt = VT_BSTR;6 l Y, z4 H$ _* c9 P
pokeVariant[0].bstrVal = valueStr;$ h X" V! Y8 n5 k) K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . i# ~& z9 Y* E9 Z) f9 S VariantInit(&pokeVariant[1]); $ [* N" N2 B+ Y3 n0 {& J
pokeVariant[1].vt = VT_BSTR; ' O' {5 D) ?$ V pokeVariant[1].bstrVal = itemStr;. ^- X- t( X6 U
* E! M, A8 P) X* {# a% ?6 d" m. Y topicStr = SysAllocString((WCHAR *) L"system");+ h) k6 q' E/ t( f2 N
VariantInit(&pokeVariant[2]); * k% F8 _# }& p# g; f pokeVariant[2].vt = VT_BSTR; 0 U* A& Q/ o+ h3 e+ x+ k6 g. Y pokeVariant[2].bstrVal = topicStr;& r- l0 ~( S/ l: ]/ R
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// Set the DISPPARAMS structure that holds the variant.8 }+ v) x8 \% M0 j' y
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dp.rgvarg = pokeVariant; 3 i5 q' l9 d/ r5 u% e) g dp.cArgs = 3; * Z. \/ z- S, a% {# ?3 C/ p9 \ dp.rgdispidNamedArgs = NULL; 7 A" U0 J$ R$ p" G2 K: d dp.cNamedArgs = 0; . V( @& y4 d2 S# K5 m: @: B) {% ]( v& b2 p7 _
// Call IDispatch::Invoke()6 B2 \# j- |8 I/ i
% c+ a( C( r; m4 N hr = m_pDisp->Invoke(& q; ?7 \0 K! ]# p/ c1 W
pokeID, 6 ~% T9 E# @( Y IID_NULL,+ G; d0 ?! Z- p u% A
LOCALE_SYSTEM_DEFAULT, ' ~! r+ u3 P% \( ], O. N DISPATCH_METHOD, z# D& h$ ]+ ]
&dp, ( _5 X S9 Z' T O( y/ k2 C NULL,& f }' n* z3 G* _6 Y( S
&ei,: A6 s- Y; f0 E! ^! a: e. o
&uiErr); ; ]4 a1 m% ?! I ( ~# x9 }* z2 n# v0 h5 O SysFreeString(topicStr);+ s6 @. q4 ~5 O- ]7 q
SysFreeString(itemStr);" S+ z B( L) Q# H& g
SysFreeString(valueStr);- b+ ~" y6 ]! ]" ~8 _0 a
" X5 D% X, i/ ^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???) s6 r; T% l6 p& o, g- x
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????. E8 x4 _; E: l9 A0 P
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2.这是request的程序/ s% n* f$ F( ?9 _) ]( U/ _
// Request a value from Extend 2 S2 N, [8 [, r/ n//- a. C) R+ _* n
// Initialize the variant that will hold the BSTR. Set the variant's ! ]. d9 Q& g: {' |: m2 @8 Y! w// type flag to indicate the fact that this variant holds a BSTR. Place the $ F& d1 G$ D/ C1 h y// BSTR into the variant structure.3 y6 j8 ^7 j% c8 y t2 [% R
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / D1 K8 v4 s& S, q7 R8 N 7 C* c2 u* |( _6 y# s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ O# k; N" S3 ~; A# M VariantInit(&requestVariant[0]); 4 J+ \5 N% t8 d7 V/ p
requestVariant[0].vt = VT_BSTR;( x* \; L B0 w& J8 l
requestVariant[0].bstrVal = itemStr;) h% @) J6 J$ g
* Z h( N9 I; h# U3 I- D topicStr = SysAllocString((WCHAR *) L"system"); 6 x, E; `+ X) d+ \* G* L VariantInit(&requestVariant[1]); 0 S3 u4 z2 j; b$ e6 q" Z) K requestVariant[1].vt = VT_BSTR; 4 o- k, b# J4 c) Y8 G requestVariant[1].bstrVal = topicStr;. l9 d0 \. P) N, R& ]" `
& q, q1 C) K3 C. M' ^// Set the DISPPARAMS structure that holds the variant.# A4 ]+ F. G# x- X M# {
; B# x( ]! O: O( ~0 y- g dp2.rgvarg = requestVariant;0 g8 A" U0 D( u& F ^8 P2 @% T
dp2.cArgs = 2;/ N) K; V2 n% W. L* c" @! ^- m
dp2.rgdispidNamedArgs = NULL;1 ^+ m" g( L- h$ x u# V1 J, I
dp2.cNamedArgs = 0; ( l; J2 G" v4 C# L F 3 q9 L8 r5 G' X/ w4 @ var.vt = VT_EMPTY; $ J. T1 `6 {0 x% x5 `2 X2 R% R8 w# h& L
// Call IDispatch::Invoke() 5 \. ~* |( M& r3 Q4 L Q' k0 d 4 g8 _3 b9 p$ k4 M3 p3 H) C hr = m_pDisp->Invoke(6 a, h2 r& y3 I' q9 y+ j
requestID, M* p5 \5 w4 K K. h6 R
IID_NULL,0 K Z- A$ g' b" i+ ]
LOCALE_SYSTEM_DEFAULT,+ v0 x# V8 S5 T! l8 V
DISPATCH_METHOD, - I- d, o. Q/ E& N B: K &dp2, ' z W) G2 W) T, [+ P# m/ X &var, + n: C m! z' }- f' L4 ^! A T &ei, 2 t2 B; a7 V4 c; E &uiErr);/ J* M9 o6 i4 U2 n0 t+ Y6 n* ]: `