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: 7 k: F9 Z% U4 ?! r6 aName = (WCHAR *) L"Poke";7 @- p% O3 }5 q- X7 D5 j5 n5 r
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hr = m_pDisp->GetIDsOfNames (. p) P* g: G/ X+ X
IID_NULL, // reserved # X v; n( E. `- ~: L3 p3 L &Name, // Array of names to get IDs for' V+ I+ E+ W! j" X+ N7 U5 Z; C' U
1, // # of names in the array . o2 j) X$ _2 O9 C/ I2 y2 U LOCALE_SYSTEM_DEFAULT, // System locale( f4 [! m9 s' U1 W) O! w' G
&pokeID); // Array of IDs to fill on output* T f& g' v- h2 {
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if (hr) 1 ?% t! I$ O! w4 o { # p$ H, C* L @% H& |6 f$ z: F9 u7 ` MessageBox ("Get Poke Unsuccessful"); ! I* Y# k5 t8 l5 T. t' F return; : u5 N, ~/ m4 T6 I: I$ n } 0 ]4 `# r9 F- |' V0 c/ Z+ Q + l' E1 c5 J* x% F# m9 B/**************************传递数据给extend**************************************/ ! F( k! e1 N/ x9 L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 ?# e& }8 U. g" a! R
( n2 z& t3 G) c+ U+ \9 \: i valueStr = SysAllocString((WCHAR *) L"1232"); 0 q: `9 `) h+ j& R* N5 x& d3 B! O VariantInit(&pokeVariant[0]); ; q9 M5 }: {7 K$ E6 r2 p/ k0 I8 U
pokeVariant[0].vt = VT_BSTR; 6 V4 e0 W. j' X2 Q- d3 B: \. D pokeVariant[0].bstrVal = valueStr;5 `. M1 B. ]. k @; U
9 `- ?$ E4 [5 Q2 B( A" b* ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + R6 u" n9 f) G6 X5 i$ a. E VariantInit(&pokeVariant[1]); ; [; O2 t3 A3 A" D
pokeVariant[1].vt = VT_BSTR; 4 Y" b# W) g7 X& m) M pokeVariant[1].bstrVal = itemStr; . z' s ` C7 A- @' y, J |+ P6 N8 g, T9 R* ~; p3 M b
topicStr = SysAllocString((WCHAR *) L"system"); 3 G3 P0 K. w8 A9 ?8 w% _ VariantInit(&pokeVariant[2]); 3 Q. v. T" d4 d" f; c6 G+ ^ pokeVariant[2].vt = VT_BSTR; , q; v; z; s: C8 c# b pokeVariant[2].bstrVal = topicStr; }# {7 O4 F5 G- M 8 f" `/ g" m0 L3 c# k// Set the DISPPARAMS structure that holds the variant. & S, K/ U- ?, c. v4 J! A6 J, j. A- A+ [- O
dp.rgvarg = pokeVariant; ' u# P4 N3 J8 {% P dp.cArgs = 3;; D9 `: l; e; g* Y' X8 ]$ \
dp.rgdispidNamedArgs = NULL;7 m7 r$ P4 S4 a' F& _5 r" Z
dp.cNamedArgs = 0; ' u) a7 K, A1 J, G% @' V E8 W! ^& w( y0 P
// Call IDispatch::Invoke()+ b7 X1 y4 H# U' N! X$ a0 L# w
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hr = m_pDisp->Invoke( 9 K3 Y4 x. H, A7 k: S! N. w pokeID, 6 d, |& r) ^4 N IID_NULL, d2 r5 N, Q* a$ B5 p' Z( P
LOCALE_SYSTEM_DEFAULT,% E) Y$ U# e9 ?! J1 J# U
DISPATCH_METHOD,& D5 x0 \) M5 G' Y
&dp,# S1 ?: P& v" X* K2 S1 F
NULL, , l) P3 e, ` ]# ?' b, } &ei," M( M9 n4 ]+ K& i( g2 e3 N4 `
&uiErr); ! q& |/ ]% H; u0 L4 i; l; R( Q; {- R) r' E7 b, r6 D
SysFreeString(topicStr); { g0 `- L ]9 N6 q8 r SysFreeString(itemStr);' u8 C$ s/ C) z# ~* L7 \6 \
SysFreeString(valueStr); 7 O: u. {; Z9 A9 f" s8 ~2 p. V1 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???- V% V j0 F: z' q* {# M
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???? . M5 D4 p' Q# A; a# s: { q$ m' N- ^( d
0 g: B. P. ]% F* X2.这是request的程序 : z+ @, z5 p8 f; o* g( [// Request a value from Extend # _1 Z7 g$ _) X$ H//9 W7 s* d b0 G
// Initialize the variant that will hold the BSTR. Set the variant's 2 c2 z. A1 d2 V! G, v+ H// type flag to indicate the fact that this variant holds a BSTR. Place the/ s2 ^) H1 v( Y" r7 [; A, Y8 f% a1 d- H
// BSTR into the variant structure. $ g& i9 n. D) F. p; A, m" @( Y0 V0 E: i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 Z2 M* u' B% F / e! z- L# S5 @; K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. A' @" d# u6 E3 r
VariantInit(&requestVariant[0]); . g2 G4 |; `+ m @% w; E7 {& R
requestVariant[0].vt = VT_BSTR;3 {0 ^& R& [9 j: {/ j1 N3 @
requestVariant[0].bstrVal = itemStr; 6 \, f3 \4 ]. Q2 D$ p ' L3 ]1 S8 {( w& H( K6 | topicStr = SysAllocString((WCHAR *) L"system"); ' K. N6 D- W# f, i VariantInit(&requestVariant[1]); " K; t/ ] V2 b& `8 L7 A) F requestVariant[1].vt = VT_BSTR; . _" ]3 W& [) P- l9 J3 Y( u requestVariant[1].bstrVal = topicStr; 3 ]3 u0 C/ H P1 e3 l4 }! u , E2 O& O, v/ b! J: o2 D9 ?6 p// Set the DISPPARAMS structure that holds the variant. $ {" z8 ?7 S" n3 p, F$ z9 T) _. x $ T* ?4 h+ f4 j+ I" h dp2.rgvarg = requestVariant; ! P5 i- z3 f0 ^' P+ w- ~6 Q dp2.cArgs = 2; # d* z. A' w V& x0 n4 Z( `; l dp2.rgdispidNamedArgs = NULL;: {6 ? o, m1 y+ a8 S f% M
dp2.cNamedArgs = 0; - D7 J2 Q+ S% R # Q" |" w7 A; o$ R6 S$ C- H var.vt = VT_EMPTY; 6 B) [0 J& @1 r6 p% j( L1 ]( W! u1 A5 g8 S8 F
// Call IDispatch::Invoke()* d8 l. f* I" [. b) a* C; @
6 @% H. n' J; S4 M9 r) k' v hr = m_pDisp->Invoke( # h- u+ {4 V8 ~6 Z requestID,9 E. g0 K( T" t% ?7 G
IID_NULL, * e$ P% @9 _+ g) Z, j) y LOCALE_SYSTEM_DEFAULT,4 p$ b4 |' V# G5 i
DISPATCH_METHOD,1 b4 @4 v6 [3 ^8 v
&dp2, 7 F4 _0 @7 V7 }$ o* C5 l &var, & J. V, O! B0 B. ]' \ &ei, V) E; N4 S6 C
&uiErr);& V7 |5 K9 ?7 }
$ G2 g. R/ ^2 l# p r, J SysFreeString(topicStr); 4 G ~1 S2 ]% t: ^6 @" m SysFreeString(itemStr);* K. T/ F7 N$ R8 H
请问该程序是获得extend里面的哪个值? / H+ f1 G k/ p9 v2 L f; 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????