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:# ~0 n" F8 F- V0 [7 C2 T5 b
Name = (WCHAR *) L"Poke"; - b, K! T( h: f2 o+ R ( y3 }- z3 c9 w4 l i! i3 v; |* [
hr = m_pDisp->GetIDsOfNames (2 A; A0 D0 p, m- M$ ~7 [
IID_NULL, // reserved * h* z5 D5 F! @: j5 |' A &Name, // Array of names to get IDs for ; D, Q j9 I; {, p" R: ~3 s 1, // # of names in the array 4 q$ y0 u' t/ v& C% d# s LOCALE_SYSTEM_DEFAULT, // System locale ' ]0 E$ f @# J( j, A &pokeID); // Array of IDs to fill on output ' x9 g. y$ N/ k * r2 K0 G/ V; @' T) D
if (hr) + K4 Z Q: V- o8 ]" c4 M2 m { * f* i3 [4 y9 ~( V MessageBox ("Get Poke Unsuccessful");4 l; W9 m. _9 y3 t* Y! F+ _8 C
return; 3 |' m' A/ q4 j9 Y, ]1 y! } } ( {8 d4 t+ P# `1 c 6 p; L1 L* r; f, i* |/**************************传递数据给extend**************************************/ ( I9 G" c- ^6 m/ ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % k4 \9 W6 b' Z+ p & U' \; i$ f& p valueStr = SysAllocString((WCHAR *) L"1232");4 T+ t: J. l$ b
VariantInit(&pokeVariant[0]); 6 V3 m2 S7 q5 N- `5 e) b
pokeVariant[0].vt = VT_BSTR; 5 x& H$ u2 J6 Y( Z3 o0 c pokeVariant[0].bstrVal = valueStr;& `+ k& n8 @" D3 v1 `0 b
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# @( H0 F, N4 J/ ]# B, P- W3 ?* h
VariantInit(&pokeVariant[1]); - J" ?6 T1 L) {" S7 x
pokeVariant[1].vt = VT_BSTR; ' @1 X8 l5 e! M pokeVariant[1].bstrVal = itemStr;5 ?& X2 G2 X% T0 h% ]! ~$ R
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topicStr = SysAllocString((WCHAR *) L"system");% T0 _2 N. ~; n9 ^
VariantInit(&pokeVariant[2]); 2 @3 i9 P% f) O0 U8 U
pokeVariant[2].vt = VT_BSTR; 1 s n4 c9 j/ z. O4 v: I& h! f pokeVariant[2].bstrVal = topicStr; # V. U3 U) ?; U1 K! U4 `, y4 F/ S 1 R' m% ]% { { g% _2 z// Set the DISPPARAMS structure that holds the variant. % s8 g" m, ?6 C0 `+ I. X( L$ _& |% a/ _6 c
dp.rgvarg = pokeVariant;! M! i# N" u2 K: J6 e- B% ~
dp.cArgs = 3; ) {" |5 H0 k, D4 w4 | dp.rgdispidNamedArgs = NULL;7 Y/ c4 p7 Q1 _* }8 T
dp.cNamedArgs = 0;% R3 v. B9 _2 M5 L+ U. C& |! m
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// Call IDispatch::Invoke()/ c+ s% ?* X1 u r! U/ X
5 M* Q8 `; T3 P9 U hr = m_pDisp->Invoke(# H# g" E, d0 I: w
pokeID,9 T# a( |6 O% d6 c# q6 ]2 q
IID_NULL,7 i0 c9 f( ]( k0 m8 f
LOCALE_SYSTEM_DEFAULT, * C0 i8 K) u% l8 r* \0 | DISPATCH_METHOD, / x3 H# @% J) a7 C &dp, 2 X: a) V* B: p6 U NULL,6 o1 p/ L/ d: Z1 I! m3 T5 i. _
&ei,6 H, C9 T2 Y \. M- P: j: N
&uiErr); ) q' y4 e' o# D* s8 U0 z; T; R$ D0 n" O9 X
SysFreeString(topicStr);7 e3 P; j, W# Z4 i
SysFreeString(itemStr);# q4 E8 L4 h$ D6 o( {7 j! X. I
SysFreeString(valueStr); L! y, a0 S. M, Y7 U ]- ^0 x: ~; a- ]$ k
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???; C& b1 l, m5 C& c. k
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????2 E- Z( W9 W) K2 M
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2.这是request的程序7 z+ x, A) r8 g" i$ O) G1 j- f+ h7 A; S
// Request a value from Extend; p6 F2 ^2 l, H- Q4 x5 [
//6 k8 w6 ^ `2 ^4 p W" t
// Initialize the variant that will hold the BSTR. Set the variant's$ J' p* b: S: h2 v7 Y1 ]" r
// type flag to indicate the fact that this variant holds a BSTR. Place the5 P. D- q g1 ~! c- v/ [
// BSTR into the variant structure.7 r# |# C. D+ I* n6 g
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- q; [: V$ p" }$ x/ ]
q$ \6 C* @6 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 ^- s! q. @ \' ]
VariantInit(&requestVariant[0]); " c, V& z/ Y3 I8 \* ~ requestVariant[0].vt = VT_BSTR; - r- b- l/ \ f1 E9 C9 K requestVariant[0].bstrVal = itemStr; + }4 G z. [3 }( v/ R) M 3 N2 z! d; s8 b/ T5 a# T topicStr = SysAllocString((WCHAR *) L"system"); 0 m, u' s2 p# N# [! N, E5 C0 ` VariantInit(&requestVariant[1]); 8 M4 @5 `7 q( u requestVariant[1].vt = VT_BSTR; k( `' s- @) k: E6 N3 p- T( O
requestVariant[1].bstrVal = topicStr;- Z5 v+ _7 U) a1 J8 p
8 h- L. E" ~! t) \: H1 {// Set the DISPPARAMS structure that holds the variant. ' e' W! B8 N- |- N, y2 s' t6 n ) V6 E, D0 |4 G dp2.rgvarg = requestVariant; 6 {- {- h2 e/ Z) Y$ a* d% M dp2.cArgs = 2; 7 H* [; w; V3 x8 z# v, B1 I2 e$ g dp2.rgdispidNamedArgs = NULL; / j: j% k, x; r- ?9 H dp2.cNamedArgs = 0;% m( c2 l. G( r, v9 N
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var.vt = VT_EMPTY;: `: Y# V# _, B+ ]6 x$ c$ e0 L
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// Call IDispatch::Invoke(); ~/ o- f; y) l- [$ B
( [# r8 M; o1 k7 w9 a. o- @ hr = m_pDisp->Invoke( * P1 D6 E$ v& z8 K4 m' R# D9 J& k requestID, 3 Q( \3 d$ f- l9 ]0 X( p IID_NULL, : u P7 j5 e5 S4 N LOCALE_SYSTEM_DEFAULT, " V+ X5 R7 }- T- o DISPATCH_METHOD, $ P1 y8 N6 }" W7 O &dp2,0 b% _& z/ R9 V. F# n$ D
&var,4 x6 l! {! _- H! e; @
&ei,3 K, ~; H5 W0 w
&uiErr);9 D" K6 S7 f) Y. p. V( @8 R