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:8 u/ ?. e3 R0 F3 b) s
Name = (WCHAR *) L"Poke";. }$ q: B1 _1 F! \, }
; d: W o, S$ ~3 J hr = m_pDisp->GetIDsOfNames ( . r# i9 [4 W9 x/ m4 r. E( U IID_NULL, // reserved0 N( |: r3 ?; x# q: A) V5 O/ V
&Name, // Array of names to get IDs for 5 |' W% v) {, ]- j 1, // # of names in the array $ U! {. _2 k) ]2 l& c$ \( [ LOCALE_SYSTEM_DEFAULT, // System locale / [6 i" n" [' L0 o9 S4 @ &pokeID); // Array of IDs to fill on output 9 e! J+ D8 j/ A) _1 Q : J0 Z- u" D5 p1 m9 l X if (hr) 9 R" \- W" R. D. S6 X% C { ! N. X7 B/ N ^1 D, j" m MessageBox ("Get Poke Unsuccessful"); # t J4 ^; r* O) l$ T6 z9 c return; ) ^: I2 |! d# b; I% t) N }8 \7 b+ s& ` [5 m6 e' _) L) F0 i
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/**************************传递数据给extend**************************************/( W- h2 d8 x! {, u, n: B. L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- ~" @% D4 e* W( T9 J4 m
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valueStr = SysAllocString((WCHAR *) L"1232");. C% [ H1 l4 k: `3 o
VariantInit(&pokeVariant[0]); u. z$ p, b4 }1 ?/ g# k
pokeVariant[0].vt = VT_BSTR;$ J- @7 K& l. E! ~7 V
pokeVariant[0].bstrVal = valueStr; ; t. q4 m' H5 ?- j4 `* k( s- d9 o" T/ W7 V ~$ y' g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); _& s9 k; ^9 C ?. n/ n) a VariantInit(&pokeVariant[1]); : @6 i8 H$ ~5 _3 D( h# j
pokeVariant[1].vt = VT_BSTR; 5 E9 g% g6 A' r* {( j7 f$ C pokeVariant[1].bstrVal = itemStr;/ |- t) ?* }1 b$ B' Y& H
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topicStr = SysAllocString((WCHAR *) L"system"); ! R9 L4 }7 \) Q& `! x9 I5 {) j% r VariantInit(&pokeVariant[2]); 5 T% z1 m/ {+ o0 N1 a pokeVariant[2].vt = VT_BSTR;% f, } T! N, B' I% ]7 ^7 J$ o
pokeVariant[2].bstrVal = topicStr;" C, }4 B7 ]8 V" y0 a$ e i
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// Set the DISPPARAMS structure that holds the variant.8 E1 k6 G# N0 |* @) p. C
6 c9 y; p m1 i6 c- Z dp.rgvarg = pokeVariant; ^* B w. G/ J4 m& z+ v dp.cArgs = 3; # a" J# Y i/ X* l dp.rgdispidNamedArgs = NULL;, D9 P5 T7 i1 V; { L( ^/ M& ]# N
dp.cNamedArgs = 0; ( N7 x1 i! U% t4 b( P0 Y- K5 d. {- p, ~( `% _( {
// Call IDispatch::Invoke()& L' F* S l- ]
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hr = m_pDisp->Invoke( 8 J. U8 N# i+ _: B pokeID, |/ F7 ^; [3 N5 n- I IID_NULL, + ]) C6 x+ `$ H$ c4 u LOCALE_SYSTEM_DEFAULT, ! j, j P- ^- S/ e/ ~3 w DISPATCH_METHOD,3 ~2 s/ T. A& Y; s; ~
&dp,; G9 z7 |) @. R- X
NULL, 9 p7 J- n4 h+ S &ei, , ?) b1 q& s+ U7 n1 S$ _% r( B9 W &uiErr); / h5 \& O0 Q2 Y+ {) v4 y7 U , w7 m/ x ?7 U2 X! i! Z J* e* _ SysFreeString(topicStr);% C* E6 Q* {' a$ p3 v
SysFreeString(itemStr);% N8 [5 w* M: ]! @' [7 K( R. B
SysFreeString(valueStr); - i9 t- x3 o" i- |' }3 o( t : ~$ e0 a; }) f, O, X5 H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??? : q+ _$ E( s w7 l) 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????( D7 {/ y. t; S& u' k1 Q
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- D' ^+ m( z( Y; x) Q2.这是request的程序 ' ^8 X* h! @0 }) `6 Z// Request a value from Extend, q8 B9 q1 b- W
// 4 S4 n- g, R5 {1 Z$ H// Initialize the variant that will hold the BSTR. Set the variant's8 L' e# r n/ E6 C* g' j
// type flag to indicate the fact that this variant holds a BSTR. Place the( M0 R7 g) `8 U8 s" P2 _; a8 G, U
// BSTR into the variant structure. , ~4 {) |2 W0 x6 |9 o; k; i- V& |7 |! M% `; B: M/ E
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. p4 U- |. | w$ L8 Q8 G
* v$ T( a: N) M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 e# c. {! t3 x8 \
VariantInit(&requestVariant[0]); ! U. V9 H: }8 ]. d$ f/ U
requestVariant[0].vt = VT_BSTR;2 P7 o: ?- g6 l8 Z
requestVariant[0].bstrVal = itemStr; / W4 v; i0 G) h9 g" _7 d4 ~9 a. A: n( P8 N9 k3 S
topicStr = SysAllocString((WCHAR *) L"system"); 5 z2 s8 B" U O* G& v5 } VariantInit(&requestVariant[1]); 0 J f# _9 I+ M1 O5 [' \
requestVariant[1].vt = VT_BSTR;( ?/ \( P% a5 @! L; t+ ^
requestVariant[1].bstrVal = topicStr; + E. L- k# a$ M Q* T. B2 r8 p' @6 f% w
// Set the DISPPARAMS structure that holds the variant. " E% i. Z+ P+ _( B " T6 T6 u0 ^" }$ m dp2.rgvarg = requestVariant;9 ?3 Y) m( I' A5 S
dp2.cArgs = 2; 9 U- [6 Y4 I3 x5 [; b dp2.rgdispidNamedArgs = NULL;) W# i) C' e4 \ q. `* E8 B0 K7 P
dp2.cNamedArgs = 0;+ U# I( G5 V- E* V" x/ b0 R
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var.vt = VT_EMPTY; + }1 @, w) H$ Q& H2 r2 a) C0 z9 o% `5 [8 T3 ?
// Call IDispatch::Invoke()7 A" V% H+ E$ e n9 O5 z4 H
: }8 v% ]8 m9 v2 I) h hr = m_pDisp->Invoke( 2 y! Y, W+ G7 j+ ] requestID,: T7 k6 X" Q) b9 H$ ^
IID_NULL, ; C1 d5 n, M- U- a. Q% F, U5 `& _ LOCALE_SYSTEM_DEFAULT,9 H0 `! {( z' r- u
DISPATCH_METHOD,9 i, h4 }+ H4 v+ z/ w, O
&dp2,* ~$ G. E* a" e l1 z& q$ n. y! `3 K# x
&var, * M Z6 e* F6 g9 u7 l$ m; C &ei, 3 S& ^' ?+ z% ~! H0 P &uiErr);" n/ k# I/ n6 L1 I) ]
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SysFreeString(topicStr);0 Z. o Z) d3 W3 u/ F& W- I9 z
SysFreeString(itemStr); : k7 v2 R: ~8 A% \+ b7 W请问该程序是获得extend里面的哪个值? ( `/ o6 g0 j$ }+ Y5 N Z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????