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: * g% ?. b1 Y; }3 ~+ cName = (WCHAR *) L"Poke"; U0 I- q6 } l* V 6 D/ i. Y8 p6 w) ^
hr = m_pDisp->GetIDsOfNames (8 n: d, ?6 l" n1 m* e
IID_NULL, // reserved , D% e, i9 W8 B$ r* F &Name, // Array of names to get IDs for ( `( E8 G) w+ b( x- {- ] 1, // # of names in the array/ H0 }8 a7 W' T3 v3 f- h u
LOCALE_SYSTEM_DEFAULT, // System locale , {) U9 _$ ?' b! }/ A& `, d! y2 c; H &pokeID); // Array of IDs to fill on output ' e' V! ]- b# G; O : x; U) @! M0 A S$ V8 | if (hr) , I, _ l% G/ \) s1 _ {4 g& t$ O# C$ ?
MessageBox ("Get Poke Unsuccessful");7 w3 \1 j5 P0 Y. s/ l& p
return; $ @8 `- R7 Y; G; [ }+ @$ I$ A ~; U; ~# G
; [( k5 ^ o$ r$ N/**************************传递数据给extend**************************************/# ~+ Z7 |1 I a0 `! L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 L7 A9 {# R5 P1 d1 m6 A2 O$ p
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valueStr = SysAllocString((WCHAR *) L"1232"); / I+ }* x$ ~* t" `+ [8 n4 a$ k3 V, R VariantInit(&pokeVariant[0]); ; P7 b7 k1 G' C
pokeVariant[0].vt = VT_BSTR; ' P8 H# l$ z* S/ G% _4 Z7 ?7 S pokeVariant[0].bstrVal = valueStr; Q2 S( E+ P( b- j" |1 x. `2 J% K7 B) t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : j$ N* Y9 G8 U2 E# g: k VariantInit(&pokeVariant[1]); " O' j7 u, G n( x. I pokeVariant[1].vt = VT_BSTR;7 G/ Q/ {! s) q. r% X
pokeVariant[1].bstrVal = itemStr; , J, n K5 T- B; {4 |! p 2 ^0 B5 F% j6 a+ o4 k9 \! \' P topicStr = SysAllocString((WCHAR *) L"system");$ ]: g) m5 u9 @/ U5 P2 c# B% i5 E
VariantInit(&pokeVariant[2]); 5 }5 S" H g( i+ K. F
pokeVariant[2].vt = VT_BSTR;; G$ l- d X: O4 a
pokeVariant[2].bstrVal = topicStr;" m& ` _, \ N% u
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// Set the DISPPARAMS structure that holds the variant.6 I D4 u. H1 j6 V/ b l! f+ O
" v: E& w# G- M/ s9 x dp.rgvarg = pokeVariant; * z: ?* e/ u8 M. [. I# ^ dp.cArgs = 3; , h2 l5 v; ^& `6 \ dp.rgdispidNamedArgs = NULL;( e' I* |5 j4 q7 M- h% d S# Z0 k
dp.cNamedArgs = 0;: z) |8 b' g$ u; \
9 }. C0 b" c, m! e" N// Call IDispatch::Invoke() ) k' n" s' [2 `, j1 P ( x& m/ R$ a. ^ A8 Q& e hr = m_pDisp->Invoke( ; u* J+ p+ w+ q' x4 f, H pokeID,; t/ i4 K4 p; ]2 `! F
IID_NULL,9 j7 M9 N; u$ O& i9 ^$ n
LOCALE_SYSTEM_DEFAULT, 6 f- P" z+ X, C: J. x. y DISPATCH_METHOD,+ n& \0 F6 t4 e$ }% W
&dp, 8 z& c3 J @3 ` NULL, 4 r( u0 ^- U# \: u &ei,3 `" _( ^- t2 B8 t f: F3 b6 P
&uiErr);& S+ m& S1 y9 s# {# R8 b. r
8 ]4 o# ` k2 t, B _5 ] SysFreeString(topicStr); - @' d/ r& s& o8 u1 U) R SysFreeString(itemStr); # j7 T0 \9 w, K5 z SysFreeString(valueStr);: L/ q% n/ p0 U! d9 M) H
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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???6 S9 V/ Y2 R. [, i5 v5 f
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" c* q; L& q" v6 R1 V$ _' W& u1 d & @4 e% a5 ? k, c$ b( s ) E0 B/ {6 i- {# F2.这是request的程序7 v1 `+ W2 Y* U+ ^
// Request a value from Extend( r! J; E) n7 W3 l' \
//: u, Y( a! G) b
// Initialize the variant that will hold the BSTR. Set the variant's$ r; m$ b3 s2 z
// type flag to indicate the fact that this variant holds a BSTR. Place the% b; m. R: E; R: ?' M
// BSTR into the variant structure. G! l6 G: L, y 2 o: [7 L3 F) x/ H5 E& w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 z! K1 n) n. F7 s. C; G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. ]( w4 J, a3 k! t
VariantInit(&requestVariant[0]); ! g. c. R) d3 b1 D% [5 h requestVariant[0].vt = VT_BSTR;3 q% t' c% \9 h h
requestVariant[0].bstrVal = itemStr;2 K% ]1 C1 b5 v* F# |
& `4 E" V# x9 ] topicStr = SysAllocString((WCHAR *) L"system"); - c0 E% k4 M5 @$ T, } VariantInit(&requestVariant[1]); ' ~, H: V' ~ v8 V requestVariant[1].vt = VT_BSTR; $ H1 E( P! Q9 }* I% n3 I requestVariant[1].bstrVal = topicStr;6 ?, S# J- T: Q1 t4 G
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// Set the DISPPARAMS structure that holds the variant. ) H# |& u! G ~% \ ( `$ H4 F1 l! V( k# t dp2.rgvarg = requestVariant; 5 E) j1 _( t, F" i dp2.cArgs = 2;6 i; e) ]& j7 A
dp2.rgdispidNamedArgs = NULL;" g0 V% P$ Y- k& E$ V. ^5 o& w, m
dp2.cNamedArgs = 0;# ?! _7 \* i1 |( P1 n
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var.vt = VT_EMPTY; * l( o4 f; b, O/ B% V9 v$ W' a9 h" H % j+ f2 z$ B# O0 \ q/ P7 P2 ?// Call IDispatch::Invoke() 9 ?4 i- z6 y& e3 R ! ~0 U. z* Q9 _/ ~" g hr = m_pDisp->Invoke( : p9 S# E+ v) _; Y: o0 ~ requestID,+ h6 Y% y9 ]3 E, @# H$ o
IID_NULL, ' M4 q# A; S( Y: C1 R LOCALE_SYSTEM_DEFAULT, % x2 U) h3 b$ ^! \ E DISPATCH_METHOD, 7 R3 |5 U* m+ V0 ` &dp2,! ~# |$ w8 ?4 ^8 z# y
&var, @$ B x+ i/ `3 u8 f9 B! i9 q; E
&ei, 2 ^+ }9 e4 h" [6 D &uiErr);8 e- u, `6 ?; z8 i
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SysFreeString(topicStr);( t* ^" q9 e! m
SysFreeString(itemStr);/ s! \$ k) N1 g1 _ L
请问该程序是获得extend里面的哪个值? 1 Q% A! a9 r; H/ @1 N+ m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????