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: ; m% B' ?" a0 b0 F" U' ~Name = (WCHAR *) L"Poke";6 m. h4 h e' M6 Y1 D
! ~0 P* ]; Q- H3 A! G7 f* f1 Z hr = m_pDisp->GetIDsOfNames ( 7 N2 X; j; E0 F8 }! \9 ~1 l IID_NULL, // reserved$ J* v. ^- H2 y3 H3 g: H
&Name, // Array of names to get IDs for7 y( q5 M' C0 J+ _/ T6 m: }: m7 Z
1, // # of names in the array : X: [" @2 r& u. ~ LOCALE_SYSTEM_DEFAULT, // System locale) |4 K+ l0 V# l+ q. d
&pokeID); // Array of IDs to fill on output+ z! V, }9 [4 g
5 r' G5 Q: J* {/ G' S if (hr) ) w- ?! n5 {% | k2 ?+ a" p { ) I5 l7 z9 b9 E% ~7 `9 G! h MessageBox ("Get Poke Unsuccessful");' @. o8 V2 @* @
return; 4 Z) R1 B" h5 i0 p+ q }9 |* [% ~; g j
- @8 |6 q1 w6 t4 ]* j' }
/**************************传递数据给extend**************************************/' P9 f$ B+ {6 A4 k& D% H8 r' ]% _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 o/ A' f; x# |$ F
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valueStr = SysAllocString((WCHAR *) L"1232");. _1 N9 D# \( N) E8 z
VariantInit(&pokeVariant[0]); . ^' j6 b& ~3 g. u7 i pokeVariant[0].vt = VT_BSTR;1 R. A/ n: q9 P- o- B4 F
pokeVariant[0].bstrVal = valueStr; ! y; M* ]' \6 r, s+ _, g1 ^9 ` 4 {. S2 D1 S- i/ U ?4 W. X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 }( m# a9 @, B( x x) Y
VariantInit(&pokeVariant[1]); ) f3 Q U4 g [ pokeVariant[1].vt = VT_BSTR; 4 e/ J) U: \- a% {9 X# Y% V pokeVariant[1].bstrVal = itemStr; + C6 B) V) N0 k5 p! t& l* d6 J; p& ]* i9 l* [* q. E; e1 v
topicStr = SysAllocString((WCHAR *) L"system"); ( a+ J/ T" `! u0 i8 o VariantInit(&pokeVariant[2]); , @2 v, T9 r, d# d
pokeVariant[2].vt = VT_BSTR; . [, H' w8 x l. W/ ]7 s! w7 \ pokeVariant[2].bstrVal = topicStr;0 s, ]" V1 g' P2 b, z' v; X
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// Set the DISPPARAMS structure that holds the variant. `; v) I6 b4 N! ^( K& P! Y+ `9 _# s- R% o$ l; F
dp.rgvarg = pokeVariant; % O' \; B$ r; D$ I dp.cArgs = 3;4 u, D x9 H/ t; N2 \' n) P
dp.rgdispidNamedArgs = NULL; - D; Z- v. S& t) T dp.cNamedArgs = 0; , F3 z5 Y0 C' J( g& Z- ~$ K; N
// Call IDispatch::Invoke() " v/ i+ I/ c" y {. P0 h; U9 X9 x7 b+ u( |" J' Q' i
hr = m_pDisp->Invoke( * ` ~/ _7 ]6 M2 a: e; X0 s pokeID,6 C- m) a' {1 L- _) S
IID_NULL, - s3 w% `+ s4 { LOCALE_SYSTEM_DEFAULT,; Q$ z& h* ^7 [" x7 D9 X* }
DISPATCH_METHOD,$ ^6 q( }9 @' D ~" n# \+ |
&dp,5 B5 M% C0 I: |( p: ^
NULL, 8 q& k8 l. q' r) N! e# s5 h1 t &ei, 6 O2 i& R8 f1 s &uiErr);6 X+ _0 _2 H- ^0 f3 _: ?
7 e6 e( e N0 S2 H; L SysFreeString(topicStr);8 a e, R: ]3 U
SysFreeString(itemStr); ' f1 q+ u6 j' Y6 u( H0 f/ s' }& s4 M SysFreeString(valueStr);2 ~3 b, Z$ v) ]1 `+ u& X$ _$ d4 J- F
# u/ N9 R/ C+ Q4 x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???% g9 C" Z" o) [- c1 O
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???? . M. n8 \! y2 V4 J9 [/ W5 J1 C$ x7 o2 l( }& Y1 v
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2.这是request的程序+ M' H' b+ A5 \* B" I+ `
// Request a value from Extend& X* W# g! _; g8 h
// . i3 P( u' R! r& `2 Z* x6 s3 \// Initialize the variant that will hold the BSTR. Set the variant's + S) `8 O/ Y) k' V5 U// type flag to indicate the fact that this variant holds a BSTR. Place the 6 P- x# ]8 D) Z; D. n// BSTR into the variant structure. , x3 G8 M5 i% O9 I, s' O5 i+ j 8 O9 `+ w. S2 l3 S) s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# e% _) Q& m4 G# Q( f! z$ l
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) e! [9 A1 V. b& s
VariantInit(&requestVariant[0]); $ Z1 e3 n& x0 a3 v W9 P4 E requestVariant[0].vt = VT_BSTR; : Q, g: |1 k' v! p% D1 Z" l# i( @ requestVariant[0].bstrVal = itemStr;2 a1 L, M {; @& |* n% a
6 S9 I. |' [0 |2 \. W! i! T topicStr = SysAllocString((WCHAR *) L"system");, Q( k- w. k; _" N4 R) t
VariantInit(&requestVariant[1]); " g" l# p2 X+ z4 K/ O requestVariant[1].vt = VT_BSTR;4 t5 f; z8 |3 H5 K/ Y& `( b
requestVariant[1].bstrVal = topicStr;# {% c3 k4 v& D% T
8 V3 }$ e+ q( E8 r: z2 m// Set the DISPPARAMS structure that holds the variant.6 N0 X. V2 m) W
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dp2.rgvarg = requestVariant;4 b& E7 K/ v" F: i" n
dp2.cArgs = 2; 9 Z+ R2 R- p% Y' _ dp2.rgdispidNamedArgs = NULL; 7 z0 O9 w! w0 K9 `: V& i dp2.cNamedArgs = 0;; k% _: v+ \! K( B
, I _( K& b& X' a var.vt = VT_EMPTY; % D! K# {5 z/ c8 T. L" [. J ( z: n3 z) S2 A7 }# I0 m8 C& M// Call IDispatch::Invoke() - s4 b5 c6 s; \+ B5 `, b* R. [) ?! B' }. w* h+ B- o
hr = m_pDisp->Invoke(+ Q2 g4 [" v/ ~% r7 {
requestID, 1 q' e! B- \1 d IID_NULL,. \7 ?+ M6 w4 |/ n
LOCALE_SYSTEM_DEFAULT,) k$ E$ S! O7 e8 D- f
DISPATCH_METHOD, E; Z! U* G) Q* M$ @1 w& g) K- L &dp2,5 _- l6 V1 q% Q, m7 E5 i6 V
&var, ! U( T7 E* s9 q* S* D/ G7 ? &ei,3 T' F1 r3 V: _# j9 E0 d1 H" W
&uiErr);# \% \+ [8 F% {+ C+ B* ]
" h' ]8 y" j3 K+ |/ M: b1 p SysFreeString(topicStr); " a/ w9 s) G! P6 n7 G# a1 M0 v SysFreeString(itemStr);! M2 F- g$ c. h% [ k
请问该程序是获得extend里面的哪个值?$ t! ~: J5 r0 R* Y3 W( r3 S
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????