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:6 Q. p$ n6 Z8 x$ N& n: f
Name = (WCHAR *) L"Poke";) k! F: J$ s6 t
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hr = m_pDisp->GetIDsOfNames (6 _/ O0 o" ]! v
IID_NULL, // reserved3 W b9 \; l$ [( i9 Q, g& L
&Name, // Array of names to get IDs for 2 G9 z5 Y. q7 S 1, // # of names in the array - N+ P9 H3 m4 Z. ]$ U+ W, O1 h) q LOCALE_SYSTEM_DEFAULT, // System locale 4 ]1 K6 _0 T4 h; c$ E &pokeID); // Array of IDs to fill on output/ ~- R' c. X" H
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if (hr)" g! a. ^( {) ^# n$ b
{ x4 t: P% G" R; A: Q# U3 o MessageBox ("Get Poke Unsuccessful"); " z4 T: f m* y2 l4 H return;2 V/ n/ B! B1 z! _ D
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5 L$ |" w+ s5 l' Q, u8 A* K/**************************传递数据给extend**************************************/ - m9 w+ U+ i I9 I( l4 m* P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# W' `' l+ o* m: n6 D* k
' y/ t- a1 p/ U valueStr = SysAllocString((WCHAR *) L"1232"); 8 R7 [0 | j/ x2 z( L/ w. s4 o VariantInit(&pokeVariant[0]); 9 s" ?/ U5 Q. K3 P( h
pokeVariant[0].vt = VT_BSTR; " J+ f e* Q# Y: e% [: J. R6 x pokeVariant[0].bstrVal = valueStr;7 E7 ~: o, o/ h5 `, G. X
3 ^" c: r7 p. K! P% V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! z6 ~! a) F# V* B- \6 O3 ?
VariantInit(&pokeVariant[1]); # P! _& ]0 F O& n9 s pokeVariant[1].vt = VT_BSTR; + V3 ^6 f& [: s pokeVariant[1].bstrVal = itemStr; 2 _# U6 O! Y8 `' [$ E/ k. \. Y: i' l$ b* L0 z; ~1 q3 B- U
topicStr = SysAllocString((WCHAR *) L"system"); + W/ Z+ j* d& Y I: i3 e8 ?5 ^ VariantInit(&pokeVariant[2]); # i1 X N- I2 k% A, D% D pokeVariant[2].vt = VT_BSTR;, y: i w* Z8 B2 U: G' J" ]
pokeVariant[2].bstrVal = topicStr;8 d q3 s: _$ D, @# m- b, i- H
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// Set the DISPPARAMS structure that holds the variant. : o1 }- K, o! r8 j ; c; D0 X9 ^' o7 p5 F! }1 Z dp.rgvarg = pokeVariant;2 A9 T6 G/ ]0 m; ?" k- G! y& h) g' l
dp.cArgs = 3; ; Z. S! D; f3 S dp.rgdispidNamedArgs = NULL; ' g) k5 B% V& X0 M dp.cNamedArgs = 0; & O! r9 ~" R3 ~ b# q1 O/ `4 P5 v3 {8 B V! [9 N' T
// Call IDispatch::Invoke()5 G& E4 o! {$ Y2 H& C) L6 N) q
6 m( S2 {$ ]1 A$ n* f hr = m_pDisp->Invoke(! B( i1 ] G8 V% M9 O/ S
pokeID, , U+ W2 \" @$ x" ~7 u) v ] IID_NULL,2 d5 V _9 d1 y& `/ v f4 W' g4 M& o+ M
LOCALE_SYSTEM_DEFAULT, , K* L3 }9 b2 U3 }( T& N DISPATCH_METHOD,' ?6 `6 |' S0 K' x; \! M
&dp, : x L4 [* q) V/ _ NULL, ' W& x: D5 p4 |$ P" V: j &ei,4 X6 U/ p: ?: p* T8 i/ ?5 j4 s
&uiErr);% P- H8 q# v7 X# x+ J. B8 W2 s+ I' A
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SysFreeString(topicStr); 8 R; [) T- [7 u0 B. O" I SysFreeString(itemStr);8 _2 r+ u- J# n% ^) B# L2 C
SysFreeString(valueStr);0 @6 b Y; T/ L# p4 G0 U$ E
( Q7 O; T4 S2 Y5 y f, g+ c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??? $ K0 e0 D$ E; ]2 u% H# s' S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????2 h' h. L$ r6 W4 |2 D: j
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2.这是request的程序. A. ?& b9 u& B* R, k3 \" B9 |
// Request a value from Extend 2 h3 r# N9 Z t9 t// 5 {$ O4 H% }# s0 K) l4 |* i* `" h, \// Initialize the variant that will hold the BSTR. Set the variant's: D; o9 ^+ |7 C
// type flag to indicate the fact that this variant holds a BSTR. Place the @1 C9 B. w n" v
// BSTR into the variant structure. ' q6 r3 o* g% ?# N* l! V0 f% b- R. ?; Y+ }* u5 g7 k4 U4 Q/ H) X
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); m9 }4 W: Y- ~; n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 {4 G3 p0 X \* D! ^: T
VariantInit(&requestVariant[0]); 2 I. K/ G5 J5 J4 {! a8 ?4 c+ J7 V3 O! j
requestVariant[0].vt = VT_BSTR; % y2 Q- S) G7 \3 P! @4 n requestVariant[0].bstrVal = itemStr;' x9 m4 R( \ J- {4 C7 }
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topicStr = SysAllocString((WCHAR *) L"system"); 7 O' v. t, o: J. \/ b! r VariantInit(&requestVariant[1]); / H2 e! t- G0 C9 {! d+ {) Q requestVariant[1].vt = VT_BSTR; 5 P8 `/ f9 D) R, ] requestVariant[1].bstrVal = topicStr; , X3 @! x1 K9 F/ B: o& V( I9 W) f) n4 k' n
// Set the DISPPARAMS structure that holds the variant.) X( J' P7 Z8 o7 z5 {. R! m. [2 [5 L
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dp2.rgvarg = requestVariant; & x% t" a0 `# f2 L* ?* J4 p8 Q1 ]! v dp2.cArgs = 2; ( D& T# d! _# _6 H dp2.rgdispidNamedArgs = NULL; [. k: R( I- O4 v; C6 }, I9 l
dp2.cNamedArgs = 0; 1 U0 l% N+ a! h8 S' ]7 U5 u 9 C# T4 B ~5 \, N2 ?' ?( U* L* @ var.vt = VT_EMPTY;1 s8 Q+ L. N, T# F8 u( r) t5 Z7 j
" K3 l2 T( E9 O9 m# i' d// Call IDispatch::Invoke() * j3 ^; U: |% p2 `( |6 @ j" l) ]9 T0 b0 z( f9 u4 ~ hr = m_pDisp->Invoke( " H' {5 r- v6 I0 `3 P' N; h requestID, 7 O6 }$ Q) ]3 _5 b% |- W4 A$ D IID_NULL,2 y7 d- |$ |2 s
LOCALE_SYSTEM_DEFAULT,9 E D! G6 C. S6 F) I
DISPATCH_METHOD,. U7 Z% j/ ]; l* ]" I& j( d
&dp2, $ y) H2 ^" d0 D6 X &var, ; n t3 W8 k: s+ ]* q9 y2 X &ei,( j& C5 c* G* N9 Q8 c) G
&uiErr); # F& V) N; W+ e, y7 ?0 q3 H' V( c3 B7 p0 K3 j' A1 a" v+ J- b
SysFreeString(topicStr);& ~; v" J* y+ ~' b9 i: d
SysFreeString(itemStr);; B- B6 U6 _; s2 J
请问该程序是获得extend里面的哪个值? % _7 w4 b I& `: S) o; `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????