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：5 ]+ z z; d9 g3 I% m& H" G0 a. a. {
Name = (WCHAR *) L"Poke"; $ u4 e9 M; n7 p8 R0 j% y; j/ @ 0 E& j: q' N, I& z J% \8 l' ?0 a
hr = m_pDisp->GetIDsOfNames (0 K6 g5 p8 ?) }" L
IID_NULL, // reserved ; A4 W' [1 F- @- t &Name, // Array of names to get IDs for : R" A1 x) z8 H/ D0 ]6 ]2 c 1, // # of names in the array : S. X& P2 H0 a- _% K LOCALE_SYSTEM_DEFAULT, // System locale" i$ W( W: i. i8 p: b2 \
&pokeID); // Array of IDs to fill on output- b5 ^1 Q6 J, O, ?6 C2 L
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if (hr) " Y) G, i1 k7 H* J {, ]# ?! _! X( k8 p4 ]+ I, c
MessageBox ("Get Poke Unsuccessful");) N1 i2 q$ w l% y' P
return; 2 y4 u& _8 q5 S- v% j }' j) Z6 x! j R' q5 u# o
( w% h! r, v8 ?/**************************传递数据给extend**************************************/% A, M6 W/ ]9 r/ ], M0 {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 C% t7 _' |4 m0 B0 _7 h4 G% d0 G: t : T, s+ I. Q O! v* h; e valueStr = SysAllocString((WCHAR *) L"1232");! `% r' O: V& M- m
VariantInit(&pokeVariant[0]); ; U4 L8 q5 X- R. C# e# C8 Y* N pokeVariant[0].vt = VT_BSTR;( X% v% |) \9 m) B7 B" `0 I9 f
pokeVariant[0].bstrVal = valueStr;+ c* v( L, C- P \
, P" o' a% }1 h7 l+ V: u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' E/ t) D1 O2 G VariantInit(&pokeVariant[1]); / u& f( h( ~1 ?; ]. x pokeVariant[1].vt = VT_BSTR;, Z5 s3 G$ k* v) x
pokeVariant[1].bstrVal = itemStr;4 b: u& `) a' n- o
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topicStr = SysAllocString((WCHAR *) L"system");7 g. b' x6 r5 h5 C
VariantInit(&pokeVariant[2]); 9 B$ y# h; o- o6 A7 Q' R: q
pokeVariant[2].vt = VT_BSTR; : R9 I% j; H3 P n pokeVariant[2].bstrVal = topicStr; L4 S( ~& i+ c" y: h& K8 Z 0 ^0 |6 h7 ~7 c6 Q, {) L) Q- N; k8 m// Set the DISPPARAMS structure that holds the variant.1 G" e) H! ^/ I1 X: `- ~! m
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dp.rgvarg = pokeVariant; 5 I g% {5 h) r) n3 ^# y( x dp.cArgs = 3; 5 d" r* E( J. q) `' U dp.rgdispidNamedArgs = NULL; - y. q9 }5 N/ T% i' A dp.cNamedArgs = 0;& z; E/ a0 P3 `0 r Z( ~4 G9 g N2 h6 n
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// Call IDispatch::Invoke() 3 V% \. q- f) v2 O7 o & K2 s8 ?# c! D. i2 a4 e) q" W hr = m_pDisp->Invoke( 4 l# x& }$ Z( j( G2 ? pokeID,% M& H: W) D; @$ d6 n2 H
IID_NULL,. ?: \& ]2 b: L6 K4 m3 V
LOCALE_SYSTEM_DEFAULT, a: O! o% S4 a; W. q4 B
DISPATCH_METHOD, M9 R% |0 b3 C9 \9 k/ u5 O, h/ H
&dp, ) a, N9 K) Z. o NULL,' l7 ^( J1 K. Q: {
&ei,5 n& e. d7 N" N6 h9 V
&uiErr);7 h G5 d5 |0 V+ Z7 t: v9 g0 X+ q
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SysFreeString(topicStr);- D0 z8 n" ` q$ W
SysFreeString(itemStr);2 W! w7 t' B8 V; V1 Z6 m
SysFreeString(valueStr);; T0 _: {4 @# M
. d: x% t8 U9 Z) E( f$ c; C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？？？ , d4 ?5 v) L( X: R" u( 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？？？？ $ d2 K$ @! R `, z 6 l, r# l( L/ B. G1 m. ^ C$ ` `! @+ X$ y* D. x' t. N) t5 C# ^8 j2.这是request的程序# D, o3 D) W1 O. k1 [( d( ~
// Request a value from Extend% |/ A6 q) A9 K& H4 `
// 9 k! `: \- c: Q// Initialize the variant that will hold the BSTR. Set the variant's 6 m% m7 ?- F* t! }4 R// type flag to indicate the fact that this variant holds a BSTR. Place the $ O; a. A7 b9 i+ U8 L- v- y// BSTR into the variant structure.8 Q* Q# s$ Y$ O& k
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: ~& n B; G3 X6 c
) E) m- J$ f% d9 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 g+ p: X3 M- p' H3 o! i. h
VariantInit(&requestVariant[0]); ( I6 h' w% d: T" g requestVariant[0].vt = VT_BSTR;" ]6 V' K$ t. K; d. m
requestVariant[0].bstrVal = itemStr;2 Y4 D& }1 y0 }% I, B
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topicStr = SysAllocString((WCHAR *) L"system"); , n3 t7 W4 Y: V+ X VariantInit(&requestVariant[1]); ' S1 A) e9 L. @$ |) A
requestVariant[1].vt = VT_BSTR;& ~) \2 s- S' T8 X1 Q% V/ B
requestVariant[1].bstrVal = topicStr; 8 p3 Q8 Q6 ~4 P6 n ( ~5 d/ y1 ?( d3 _5 i" b+ n// Set the DISPPARAMS structure that holds the variant." [* _1 n, M, z3 m6 R
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dp2.rgvarg = requestVariant; 5 Q$ J* }- F2 l# R' { dp2.cArgs = 2; 7 H0 d& b9 ]) K, L* E dp2.rgdispidNamedArgs = NULL; : m& K! @/ |7 L8 x dp2.cNamedArgs = 0; 2 B# L5 d+ @* i/ l0 ] ( F' T9 r* ?+ ^) Q+ H' D. D4 N8 v var.vt = VT_EMPTY;9 u" a3 n' a/ |
" u: n8 W" M( f- ~/ _ u4 M// Call IDispatch::Invoke(): \' X! I9 o$ [1 M1 J! f
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hr = m_pDisp->Invoke( / u5 N( x& A4 o0 z3 ]! Z2 C G requestID, ( o8 v: X+ j# y) k" O- X IID_NULL,$ {6 ~+ ]# H, D4 a5 H
LOCALE_SYSTEM_DEFAULT, & r- A. s+ Y4 E$ _ DISPATCH_METHOD, 6 ]3 w m% ^9 p# T& r &dp2, ( C+ W& O, R% [8 L &var,4 \; ^5 O) ]* j# g H. _: I
&ei, * W& y* `1 U7 F &uiErr); / ^9 y/ S# S- J4 r9 `+ o) L6 _; }+ U" A. X" b" I
SysFreeString(topicStr); 5 r) K' g6 ?0 y ^/ W# J SysFreeString(itemStr);. N) {+ ~/ ]6 c8 r7 y
请问该程序是获得extend里面的哪个值？ 4 v7 O- l) a3 }7 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？？？？
发表于 2008-11-25 19:37:03
