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:" y4 ?9 ^1 M, M1 F3 R5 @7 r
Name = (WCHAR *) L"Poke"; ' @1 \& \8 R5 z% P ( R! C# H( b, s9 ]0 r: k7 n0 {3 J hr = m_pDisp->GetIDsOfNames ( " Q6 P( p9 O7 y( C- f) z5 ^- p IID_NULL, // reserved- ?4 X: d, S1 f* E/ X( Y+ e
&Name, // Array of names to get IDs for 5 s5 }8 t0 A, } 1, // # of names in the array $ u6 y- C$ L1 u- g; |0 Z! {- B6 k( H LOCALE_SYSTEM_DEFAULT, // System locale6 Y9 [, n. |* r& a5 o/ c
&pokeID); // Array of IDs to fill on output + |. {; |5 o5 e, y) Q: [. p% j 2 m/ B' J* L! j7 U7 T5 }' U if (hr)6 p: q4 M% J) R( T, p0 L
{ - Z; I6 p. j E# | MessageBox ("Get Poke Unsuccessful"); # ~/ w# P; W+ X6 c B5 | return;5 g6 A7 u9 C8 V) o
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/**************************传递数据给extend**************************************/ ; N# C; s4 S- u7 T8 | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# W, l) G( ?% q7 d/ }7 R' m
% Q) N( \% ~! m5 ^4 ] valueStr = SysAllocString((WCHAR *) L"1232");- R/ G5 b9 e/ V+ R+ W, j1 I& N
VariantInit(&pokeVariant[0]); / _/ f k2 r/ A1 G1 Z' }1 F4 u+ P pokeVariant[0].vt = VT_BSTR;, i' l+ D- Q7 O) T
pokeVariant[0].bstrVal = valueStr;, ?7 J% W) A$ V' e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 B; |& M& N% k, i9 P& M' }/ D
VariantInit(&pokeVariant[1]); # G. g* }3 z* J, x% [) _
pokeVariant[1].vt = VT_BSTR;9 z5 |1 `. k5 x2 e" ]0 F
pokeVariant[1].bstrVal = itemStr; $ t) b+ Z% c1 R. c0 I% i! a1 _) w1 J' J9 v
topicStr = SysAllocString((WCHAR *) L"system"); 0 i, G) i2 [' A) \9 Q! G0 f0 h& G VariantInit(&pokeVariant[2]); % t' g0 U' _- a& I
pokeVariant[2].vt = VT_BSTR; 3 P# u: Y7 H% @ pokeVariant[2].bstrVal = topicStr;' u. m; |7 V& F4 ?+ w4 y% Q' x2 ]
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// Set the DISPPARAMS structure that holds the variant.# @1 r' _1 _- A' o Y, t
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dp.rgvarg = pokeVariant; 5 U7 L# Z: L; Y0 L dp.cArgs = 3;$ x- P0 h) ^+ V) R
dp.rgdispidNamedArgs = NULL;% j) c5 H, V# y
dp.cNamedArgs = 0;+ P3 L+ I3 d m" B
- s% Y: f, ] K; X ]// Call IDispatch::Invoke() $ } @# K/ D& e9 v$ j, x3 l: v4 X K/ ?0 A
hr = m_pDisp->Invoke(1 t, z0 s0 ?6 j/ L
pokeID, - i E' N* X. I# i# v3 w IID_NULL,- [4 ]7 J8 p; c( t
LOCALE_SYSTEM_DEFAULT,8 H7 H0 e8 O }0 F/ A' O
DISPATCH_METHOD, 4 s$ k4 G3 L$ J3 Q$ b &dp,6 c4 I2 n4 G1 [# Y" m
NULL, p* N" `! s" p# ~ &ei, 7 b: m0 ?$ _1 ^3 m3 a# n( ^6 x &uiErr); / G$ D& [# s& z' p; p* ^) f+ |3 X' B& ]: D# ^
SysFreeString(topicStr);. I% E" z9 k. ^1 n: l
SysFreeString(itemStr); , w& v0 d. T* K6 h l% J/ P SysFreeString(valueStr); H1 B8 L1 V3 d/ c8 n. R
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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??? 8 K$ ? o- d! x- D- Z0 c8 n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????+ Q7 J* [( E0 [5 K! c) G9 x
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0 R' m. V |: W2.这是request的程序 * @* x v9 }, u4 G% F/ q4 C// Request a value from Extend 3 z5 O2 O, X. _1 L, _// , H" e2 V( p' V7 ~- O6 L6 c, a1 X# E// Initialize the variant that will hold the BSTR. Set the variant's; F5 x. Z$ X( E* i4 m
// type flag to indicate the fact that this variant holds a BSTR. Place the , j7 t" `4 f% g) u6 ^4 b// BSTR into the variant structure. ~+ s0 f8 g" V7 U. D# k4 j 4 u+ t$ u0 a' @" j; }& E. y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- Y6 x) T- G* k
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); Z8 S; i/ i7 N# Z VariantInit(&requestVariant[0]); . y7 ] T7 R7 K" C requestVariant[0].vt = VT_BSTR;* u, ?2 r. r, C/ m
requestVariant[0].bstrVal = itemStr;& j6 M0 d! g y; p
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topicStr = SysAllocString((WCHAR *) L"system");3 R' h! R1 q5 k: e2 x" i9 o% R
VariantInit(&requestVariant[1]); . O& r' M7 c+ Z; `3 }& @8 G- T+ o. O requestVariant[1].vt = VT_BSTR;: e% c O2 ~* k5 u
requestVariant[1].bstrVal = topicStr; 1 l" U4 h! D" L( Y/ x, X% x9 T4 t 2 g. l4 C) N+ |// Set the DISPPARAMS structure that holds the variant.! U, @" ]' }. `6 g! H K