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" _) R4 v( ]" `% I* m9 Q0 M% e
Name = (WCHAR *) L"Poke"; 6 n9 A2 k6 m7 [7 q: u: F$ r ' @& X+ b# w, u! N+ d
hr = m_pDisp->GetIDsOfNames (5 m( i( L$ f% A, Z- C
IID_NULL, // reserved6 j3 ]' S% @. V, Y3 l7 y5 W/ `2 _
&Name, // Array of names to get IDs for3 Y+ y! V+ h7 D8 S+ B
1, // # of names in the array/ t( u1 S4 q* X! g! M: q# R
LOCALE_SYSTEM_DEFAULT, // System locale + ?$ J" E/ J9 e: [% U8 B* f &pokeID); // Array of IDs to fill on output% n- j. g- n( T% ]4 T
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if (hr)9 N% n# f9 c6 J( K3 b
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MessageBox ("Get Poke Unsuccessful");7 o" h! C! e) q4 k
return; / U: G1 I# h: t' ?, Z } 4 i* r6 ^8 J: \# I+ a! `: J4 ~ _; i. `: @( b/ s9 }
/**************************传递数据给extend**************************************/& C' L: m( \- F5 F2 ^; q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, s0 w3 E- g# E. A
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valueStr = SysAllocString((WCHAR *) L"1232"); 6 J8 R; u" d; H VariantInit(&pokeVariant[0]); & q% D U3 k5 }+ \) j/ u. ]5 M! N pokeVariant[0].vt = VT_BSTR; 0 B8 \. f+ p3 F8 r1 e" u* c* Y pokeVariant[0].bstrVal = valueStr; ; p6 T0 H$ ]* ?0 ^* X; |, v2 i7 S: E7 Y- l G. ?( W/ G) C, g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! l* r% p: `" n" t1 X0 U7 R$ L+ e VariantInit(&pokeVariant[1]); ! ^! i k3 k2 d W% h( { pokeVariant[1].vt = VT_BSTR;8 v: M8 a( Q: |
pokeVariant[1].bstrVal = itemStr;/ C) Y" {! S; e3 \8 h6 ]* A
* |" X! |$ E6 s topicStr = SysAllocString((WCHAR *) L"system"); % [. n% J A h6 T0 o5 ~ v5 p VariantInit(&pokeVariant[2]); $ m4 q0 R5 Y$ z" ?% [8 Z
pokeVariant[2].vt = VT_BSTR;2 r0 g9 `8 t* J* r1 F
pokeVariant[2].bstrVal = topicStr; 2 ]2 S$ U8 a ^. e6 D! Q. J) v4 i# ]* k1 B0 M% Q( i2 ?/ L# y
// Set the DISPPARAMS structure that holds the variant.) ^( O( l* I; S# b U$ C. \
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dp.rgvarg = pokeVariant;% q) F' `& r) n$ |
dp.cArgs = 3; 4 O# f2 y/ X4 u dp.rgdispidNamedArgs = NULL;1 a: b8 J: C y! t
dp.cNamedArgs = 0; 4 L% J& H3 |7 e: W A- R3 o3 ~4 @) N' l; m* h
// Call IDispatch::Invoke() 6 E0 ^+ N- w) l, I) q+ Y3 `& ~& o3 z9 Y% V* i% i M/ M" q6 J# H$ d: u, I
hr = m_pDisp->Invoke(0 e- m: U Y' L6 @1 G0 A
pokeID, - T% d9 f: Z2 \4 H* \1 ? IID_NULL, ) V/ A) ?( z1 K LOCALE_SYSTEM_DEFAULT,, G# c& L; z5 e, n4 z) x! D& |
DISPATCH_METHOD, r3 Z& I+ R9 s- b; B
&dp,0 P$ E6 I+ ?2 ~/ Y3 H* J' v
NULL, & Z9 p$ J# G, P, p: x. Y0 x* p &ei,( ~2 @# i! b) C! }% @/ R4 J$ v7 q
&uiErr); @( r' B v5 {4 ?% G & w' ]- n4 a3 G g SysFreeString(topicStr);- h" @0 \+ R, Y9 p# g( x% c
SysFreeString(itemStr); 3 i0 D9 @4 {2 b& y SysFreeString(valueStr);. q3 B/ W5 S) m4 X0 G$ t5 X
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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???" y) Q$ g7 {& b! k7 O* w( `
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????) ]0 a# ?! C+ p7 g( F7 @
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2.这是request的程序0 ^2 e. d/ \. k- ^
// Request a value from Extend 0 @' \5 f5 u; i, x T0 P// # e# c% X0 q5 f% o% n }4 }+ D// Initialize the variant that will hold the BSTR. Set the variant's # v: w$ L8 w0 z: n, a3 ^// type flag to indicate the fact that this variant holds a BSTR. Place the # Q" {: u" g1 |7 m, E: f) c// BSTR into the variant structure. " y- O7 R9 \# O7 T9 F" ?1 w* Q% W0 a) r6 z) g) T( C* H. F; I, |
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& e2 x+ {4 n; v6 T
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; L; v% u7 b, x% [0 a+ t; o: d/ l4 V
VariantInit(&requestVariant[0]); R3 u9 x- ]- a, V O) Q1 V$ @- F; u
requestVariant[0].vt = VT_BSTR; # n0 _; V% A p8 T0 j3 c requestVariant[0].bstrVal = itemStr;' O" Y: J% U& G4 {
, s `5 R$ A! Q topicStr = SysAllocString((WCHAR *) L"system");) F" U2 W) u8 h
VariantInit(&requestVariant[1]); & t p# H0 j, t; D7 X7 @# @3 w
requestVariant[1].vt = VT_BSTR; 3 z- B2 x e- z' k# P) q% w requestVariant[1].bstrVal = topicStr;& c2 Q9 M" m, c( l# i
: O$ s0 `% \5 \7 h7 q: W. ?2 M; ]( x// Set the DISPPARAMS structure that holds the variant. : K# d; h" u2 \1 | `5 Z/ y 1 O6 N% K( S5 X1 }1 c dp2.rgvarg = requestVariant; - \5 R$ J9 l0 m dp2.cArgs = 2;: A# s( ]6 E) {3 B
dp2.rgdispidNamedArgs = NULL; ' O' s, v4 r, M3 Y: \ dp2.cNamedArgs = 0; . h- s7 C7 M* R0 m! G+ S7 v0 u9 {$ e
var.vt = VT_EMPTY; - h5 M5 ]& \3 W- {* {1 g2 C, l- M# x, M9 |
// Call IDispatch::Invoke() 3 G ^) e- e& R+ O) Z% W* @5 z " k! K; I) u6 b, n" w) a+ N hr = m_pDisp->Invoke( 4 J& U0 r* o* t! R. C6 i4 ?* Z requestID,0 K( C9 W! H. F& L
IID_NULL, Y- w( m4 v5 e/ x8 F) W* [
LOCALE_SYSTEM_DEFAULT,/ W' M) H7 A7 F7 R& ? a; }& p6 V
DISPATCH_METHOD, 2 _3 B% Z- y9 ]3 `3 Z; N &dp2,& Y# R1 i$ _. m; e. B
&var,5 {, k9 |( [0 j( c/ `
&ei,) f- X: _, f/ X! @% H, b, @2 _
&uiErr); ^1 n- J/ K' s; a) c `9 ?& v g0 `
SysFreeString(topicStr);2 e3 j- c( u- d& B
SysFreeString(itemStr);2 C5 P: r4 H# l# p
请问该程序是获得extend里面的哪个值?2 y2 C- M: g5 I
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????