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 i# I( g# y/ ~2 SName = (WCHAR *) L"Poke";! Y# |8 m' T. ^, Q, j0 F
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hr = m_pDisp->GetIDsOfNames ( + V) ?* o- w* S$ O1 T o( g2 R8 V IID_NULL, // reserved6 }6 i+ X! u# `
&Name, // Array of names to get IDs for % T. O5 n& x9 y( F1 X% {& ~ 1, // # of names in the array, R& X8 X6 Z) _8 r
LOCALE_SYSTEM_DEFAULT, // System locale, b! w+ }) N2 j& P8 B
&pokeID); // Array of IDs to fill on output& K; y/ Y4 R+ W+ p; w
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if (hr)1 z8 l) j. Q0 s H/ E( A
{ + r6 r/ y$ b6 w1 n: V2 `0 K. q* |' H MessageBox ("Get Poke Unsuccessful");- Z' X( W- |! v1 ? }) n: [
return; 1 \ h" Y. x! ~7 W `2 T, { } 2 h( m/ r" o2 g' W% K. \ - i, b! i0 [1 L4 g; ?, \/**************************传递数据给extend**************************************/ ! ^0 v& n$ \7 P r8 Q1 w pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; w) s# Q, t9 c
9 }" I8 q8 P6 X+ L' b! }: i% c valueStr = SysAllocString((WCHAR *) L"1232"); # i) \4 e% G2 i/ r7 u VariantInit(&pokeVariant[0]); , H" R7 Z# G5 _- k7 G$ G
pokeVariant[0].vt = VT_BSTR; . ]0 D; w- R. W7 X( w3 f7 P pokeVariant[0].bstrVal = valueStr;/ t9 O0 u4 Z, S/ w
{7 ^2 w- S% J8 Q3 `, w1 z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 l' G$ k6 p9 ? VariantInit(&pokeVariant[1]); ; Y$ Z7 m$ Z% P. ^
pokeVariant[1].vt = VT_BSTR; 6 I7 E* Y6 Z' l: i2 h9 r pokeVariant[1].bstrVal = itemStr; ; i7 }5 o8 m% r. C9 k8 h1 b! e0 K: L3 Z( a; g
topicStr = SysAllocString((WCHAR *) L"system");0 C+ D: h5 K" E+ g- l# r2 o
VariantInit(&pokeVariant[2]); / S9 ]: ~7 p5 O+ n
pokeVariant[2].vt = VT_BSTR;' q+ a& P+ t7 Q' I
pokeVariant[2].bstrVal = topicStr; . b! x s( K/ ~/ L3 F/ u9 w: `# n; p9 Z0 Y- `
// Set the DISPPARAMS structure that holds the variant. : [, G# n5 V0 E8 H+ W, U2 H+ @! C5 Y* t* P
dp.rgvarg = pokeVariant; " g3 }5 B# `1 g( \5 d+ L dp.cArgs = 3; 5 X+ N" v3 B. \) } dp.rgdispidNamedArgs = NULL; 3 b" |; q* Z9 M' s/ ^) Z dp.cNamedArgs = 0; 4 H1 _6 j3 z# B$ [, _- I/ w2 t) [, p9 l2 S7 g0 L3 n
// Call IDispatch::Invoke() * C: L* @& m. z0 V . Y( e- x) T- o5 _7 o hr = m_pDisp->Invoke(- f+ Q7 n$ }8 H. [
pokeID,8 o. q5 W5 c+ v. {9 j8 n, N& R
IID_NULL, " |) w1 K& {0 O LOCALE_SYSTEM_DEFAULT,! Z* }6 o9 a/ w0 a
DISPATCH_METHOD, 2 f2 @8 F D" Y! w9 g/ n$ @ &dp,& V; ^: l; k0 y, I5 n8 y5 j" l; o% ?6 Y
NULL, / w3 s) Y) O7 b3 I &ei,- i/ `, t1 S- m; ^1 Z1 c* O
&uiErr);+ _. [- E* D, K. o* O% e4 S; b
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SysFreeString(topicStr); S: V8 ^0 t+ G SysFreeString(itemStr);- A9 B8 `2 @8 Y* k
SysFreeString(valueStr); - w# B2 V( y& B& ^ 5 U. \" S: ` x7 }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??? - t7 a. g! ~1 K* Z% i8 b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????. N1 T' c& J; A* C% K* _) j
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6 `% J, j- E y: L1 U% l {/ k2.这是request的程序 . V, M* X4 Y' ]2 m9 T3 y, U// Request a value from Extend - B( x- [) N1 K- Y//% o4 `. u0 n5 v t
// Initialize the variant that will hold the BSTR. Set the variant's + Z5 J8 q. l$ ?# u3 @0 z' x( o% Q// type flag to indicate the fact that this variant holds a BSTR. Place the0 o6 Y ?$ s8 H0 G5 j& k
// BSTR into the variant structure.! \5 h2 t4 U9 _, ]/ M" }
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 N" l0 e+ `7 Z! F; {$ l. O
* Q! {, F0 V- M( j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ O+ v" e3 G0 m3 C2 ?7 S, D1 q
VariantInit(&requestVariant[0]); 2 c, u! ^1 W$ t requestVariant[0].vt = VT_BSTR; - F9 K! i4 O1 l( d/ A requestVariant[0].bstrVal = itemStr; + f& i. D4 u& _& H3 J6 @5 u 1 H1 K. b; y5 G+ K- e. V' p topicStr = SysAllocString((WCHAR *) L"system"); $ @; A' X5 o; M7 u9 D VariantInit(&requestVariant[1]); ( |) F1 m8 o& n9 o6 D- [, j requestVariant[1].vt = VT_BSTR; : X+ V/ b* r$ W _ y/ ^ requestVariant[1].bstrVal = topicStr; m. B4 _1 A' n8 M& f& q: G( R* a2 V7 {' O- p
// Set the DISPPARAMS structure that holds the variant. ' S$ n) f/ f# [8 ~8 L) s \+ F) @: R8 D; J
dp2.rgvarg = requestVariant; * `/ U# r" |0 T0 D dp2.cArgs = 2;5 U5 W, Q. d. B
dp2.rgdispidNamedArgs = NULL; 5 Z; z5 H4 J: t dp2.cNamedArgs = 0;" K4 s) {) Y" L* z2 U6 o( a Y
9 M h3 T4 V, u, Y' ` var.vt = VT_EMPTY; 6 g! t9 ]5 c/ H: r; o: G 3 V+ G8 p0 F }, M; v# ?// Call IDispatch::Invoke()( d$ ]$ @1 G" K
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hr = m_pDisp->Invoke( ! S1 R9 F8 c1 N requestID,, T) T: v0 s& q5 `8 Q6 {- h, |; v
IID_NULL, 9 T) M2 I3 P2 h0 [# C" Y# O LOCALE_SYSTEM_DEFAULT, & a* Y4 W- s& Q/ C2 g V h DISPATCH_METHOD, ; H5 ^+ y; x4 L" x &dp2,) _) J8 {6 d5 Z' C a y
&var,0 u7 e$ H" \4 h" {9 S! L
&ei, 3 `, d" q, v& k7 H &uiErr); . j7 C% ~# ?, ~; x- Y* {! I / ~3 W6 h& Z6 R3 Y; t. p* R SysFreeString(topicStr);( M N R' U: V) t$ `8 I
SysFreeString(itemStr);4 d7 M( J+ P5 m5 e P7 U* X
请问该程序是获得extend里面的哪个值?" M, ?5 ? c$ v5 ]; L; l0 L
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????