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: ; p$ V! Y% ]% MName = (WCHAR *) L"Poke"; , k" ]3 B8 ?# | " o$ F5 h+ T. Z# |, P' ]
hr = m_pDisp->GetIDsOfNames ( ' `# Y9 M/ o/ d) Y( \3 z0 V9 `1 g. @ IID_NULL, // reserved- e; E! @7 C) `
&Name, // Array of names to get IDs for 4 ]5 M7 ^; s2 C+ z2 d4 x 1, // # of names in the array 6 G6 \( j5 z3 j4 W2 {8 w1 E5 i LOCALE_SYSTEM_DEFAULT, // System locale3 Y8 a0 p5 p% p. Z
&pokeID); // Array of IDs to fill on output3 O ~& l7 `; J* ~5 q# U7 N
% t' A3 h0 o9 ?- C if (hr) ( \. @1 Q2 M- W) Q- d. m {6 J0 X2 n( k* S# @
MessageBox ("Get Poke Unsuccessful");) K, J' s3 C# F6 P
return; 5 H6 q5 {! P4 S: S1 u }" ~( M! M0 P, q9 {0 G) W
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/**************************传递数据给extend**************************************/8 p; y. G* H0 m" N/ h. N/ r R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! X; }, K, K& B7 J! [
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valueStr = SysAllocString((WCHAR *) L"1232"); 3 H9 ~: t9 s$ r VariantInit(&pokeVariant[0]); 0 O2 |' Q7 X- W; f- R pokeVariant[0].vt = VT_BSTR; - w) y7 `. d6 G9 h R pokeVariant[0].bstrVal = valueStr; / [+ }( O- Y$ M2 k n* G4 U1 B: C* a( E& ~$ T/ @# J
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- t6 q, A" [6 H, k
VariantInit(&pokeVariant[1]); 3 U$ P( B+ h7 H' j9 O0 C1 P
pokeVariant[1].vt = VT_BSTR; E& y! X6 U/ m; y8 @ pokeVariant[1].bstrVal = itemStr;/ Y& i" v- l; k/ Q
. t+ ~8 G: v% o4 @3 r: X) L" S topicStr = SysAllocString((WCHAR *) L"system"); X4 ~) _! u8 E0 Q2 ^4 i
VariantInit(&pokeVariant[2]); V; M) q O. U- ]* I& K pokeVariant[2].vt = VT_BSTR; . r7 y' K$ I) r1 b$ c pokeVariant[2].bstrVal = topicStr;) b5 R- `4 s: B: ^# Z/ E( P
8 w6 W: J+ J0 v9 y) ~9 S// Set the DISPPARAMS structure that holds the variant. % N# C; u X2 {3 p" g/ p+ A8 {4 Z6 g1 n; t
dp.rgvarg = pokeVariant;% I' N' e& u8 J
dp.cArgs = 3;' K& H. g% X, c/ u7 I
dp.rgdispidNamedArgs = NULL; - I4 {* a$ n3 U# M7 {0 ^ dp.cNamedArgs = 0; 4 ]% I& [/ ?; b3 u2 b7 [, ^2 I: M: ]8 X8 Z; V# O" O( ~8 z
// Call IDispatch::Invoke() - o; I& H* a# A' l- X: b; s" a T, W" I; w% r
hr = m_pDisp->Invoke(" g* o+ K4 U$ ]5 b
pokeID,+ T6 @0 T m9 h, z
IID_NULL, 8 C7 x: {7 d7 C. j7 o LOCALE_SYSTEM_DEFAULT, 6 h- z' d) f# M* D& _% ~/ ]; [' g DISPATCH_METHOD, & d( g- I' J n4 F& D- \3 _5 Z &dp,. H, K" n/ L1 U+ _/ E
NULL,: Z' o! i9 T0 S7 P M
&ei, Z$ Y4 X; i2 q* O
&uiErr); 5 N4 O2 k$ q+ J) r, y& h2 f) h+ g9 |/ o# |0 T+ F- V
SysFreeString(topicStr); : j O5 g# I8 ~ W# ~4 f SysFreeString(itemStr); & Z# g7 G- E1 D/ w) p SysFreeString(valueStr); 6 J0 s* [$ J7 ^. t4 O: r0 M0 X {5 u+ L$ W; d
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???. {9 v" ?- b$ T. ]/ A
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????5 Q( P) e/ P b0 E d
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2.这是request的程序3 C& ]. M! t/ L( O9 ?8 I; G8 r
// Request a value from Extend r w6 M. Y$ _* s- K//! G7 V {& u0 ]
// Initialize the variant that will hold the BSTR. Set the variant's + J+ `* D. O0 G, K6 T" F% {// type flag to indicate the fact that this variant holds a BSTR. Place the ' Y) u7 j( U7 Z! h// BSTR into the variant structure.! A- v, D- t7 u: e
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" c# k- @. [0 p- F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) H2 j8 t5 K) O VariantInit(&requestVariant[0]); 9 M, M3 P7 h( R" C requestVariant[0].vt = VT_BSTR; 6 _+ e3 x8 x$ k4 j7 H requestVariant[0].bstrVal = itemStr;7 ^3 u" N9 ]+ z/ _
5 J" w# A! o0 U. @ topicStr = SysAllocString((WCHAR *) L"system"); , F) R* f4 @. x3 w VariantInit(&requestVariant[1]); 1 V% W3 P1 v0 e4 {& D7 Q# ]9 c requestVariant[1].vt = VT_BSTR; ! @( v5 s; U* K% i& ?6 Z requestVariant[1].bstrVal = topicStr;% g" K1 f d9 d' j
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// Set the DISPPARAMS structure that holds the variant. & g+ j0 K0 A% {' p0 _) C7 A+ O # a: Z. [6 }: V$ r' y( v dp2.rgvarg = requestVariant; ) {) P9 Q4 O" w( h) Q5 s2 f2 k dp2.cArgs = 2; , u! n: i: t3 u* D dp2.rgdispidNamedArgs = NULL; * d) [7 q' e% _9 J# l" }, b) n2 z0 N dp2.cNamedArgs = 0;4 f7 L% h4 g' Z6 Y+ z: v
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var.vt = VT_EMPTY; 0 T0 c- ^" J. S( P ( u8 c3 Q1 N: t+ O" b// Call IDispatch::Invoke()- o- I* P) r2 {. y
: G8 _! w1 {# m hr = m_pDisp->Invoke(1 q- v A! {. M5 H: j/ H; U1 S
requestID, & y/ O1 n; j C# j" y IID_NULL, 2 W) j: h& j l LOCALE_SYSTEM_DEFAULT,% {" a5 R3 o/ r; a# S1 ?6 v7 W
DISPATCH_METHOD, 7 b- t1 l0 M0 r &dp2,) }& S! Z b2 {! L P! L
&var,4 E7 a; R l( ~, i0 S( K
&ei, 9 T/ r, `& t3 k/ c7 o" P% w U &uiErr); $ t: X! @/ x% l5 _7 T6 t7 \# K) b$ H! v/ ], [- E
SysFreeString(topicStr); * k# Z: w p- J; A+ j- B( R. o SysFreeString(itemStr);, \# v9 V3 N8 G, y1 T" ^
请问该程序是获得extend里面的哪个值?) |# g9 R2 w+ M, p" D+ @3 F0 s- x
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????