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: # S. E( Y+ j: e% ? [* dName = (WCHAR *) L"Poke"; , M: Q' o; V6 c) i( w& d7 j2 w+ ^ 3 R1 \; }& n4 i# x3 u hr = m_pDisp->GetIDsOfNames ( % b) a6 B: I- G/ U$ \/ Q IID_NULL, // reserved ; s5 ~$ f0 G* `3 v4 T- C &Name, // Array of names to get IDs for3 G3 m) h6 h9 @: v3 d! L6 _; G
1, // # of names in the array - I' S* H3 P f/ v$ a LOCALE_SYSTEM_DEFAULT, // System locale ! \3 G3 ?! X. ^+ q% \+ i &pokeID); // Array of IDs to fill on output + W' |* l0 F+ l/ i8 m5 u ( p; c' V1 h" n) x if (hr) $ E# a) i4 _# \ { + s8 p7 I' l$ m% N. [ MessageBox ("Get Poke Unsuccessful");2 f3 ~& K& Y) u
return; : [7 Z2 k" }/ w5 ]1 a$ s } # T' c0 A$ J& ~2 h$ I # u3 c8 Y. K* ^' M/**************************传递数据给extend**************************************/& O5 \, e3 B* W& u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: M0 A2 O, n/ ]/ M, U5 c; n6 r
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valueStr = SysAllocString((WCHAR *) L"1232"); , A i( F! ?) D& V7 ` B. C VariantInit(&pokeVariant[0]); 4 O8 C v$ @2 V2 ] pokeVariant[0].vt = VT_BSTR; , C5 h( ]/ h5 H5 E6 p pokeVariant[0].bstrVal = valueStr; 6 o: X# R" c' {! p$ b3 Q! ^' m# G. ?: K: p: ~+ t8 T# T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ N; D3 S2 [! q2 L8 D
VariantInit(&pokeVariant[1]); , @% }, R# Q! h4 @- P8 D! S, \4 P pokeVariant[1].vt = VT_BSTR;0 O& ~9 V1 r& f& |% J: q
pokeVariant[1].bstrVal = itemStr; % s5 R# c- ^, D* ?: Q 8 Z J( ~! x, i" s' X topicStr = SysAllocString((WCHAR *) L"system"); 9 ^' J8 _4 u( f2 V& }- D; U' y VariantInit(&pokeVariant[2]); 9 z+ z0 f Q8 h8 s
pokeVariant[2].vt = VT_BSTR; 5 |* N I0 V6 H1 G pokeVariant[2].bstrVal = topicStr; & P E! I* L) _2 U* n( Q/ ?: Q0 w. d% @$ }4 M; y
// Set the DISPPARAMS structure that holds the variant. / r& u- a( w& {0 J" ^ }: [+ L8 `0 X9 B# L' I8 R3 h dp.rgvarg = pokeVariant;4 Q5 G5 L+ G" t A' X
dp.cArgs = 3; 2 L( L3 J$ z7 v, t0 u9 k dp.rgdispidNamedArgs = NULL; " y% @+ h( N" r; g% ?6 S dp.cNamedArgs = 0;; r2 C% W2 y4 k7 O) s1 [
' n" z6 @3 C, s; k+ c// Call IDispatch::Invoke()5 _6 @3 l- s) [8 Z. p& m
o8 i9 E4 l! n, b% v hr = m_pDisp->Invoke( 6 B9 {* a7 @6 m. y8 v pokeID,6 p- q/ R# ]: u1 q' s
IID_NULL,( q8 j7 \# k4 S6 w; g- x2 N
LOCALE_SYSTEM_DEFAULT, 9 A9 {1 Z% \. y DISPATCH_METHOD,& Q9 i! ?# \, r9 {
&dp, 7 i4 c4 L7 S' o" A5 ^ NULL, ) K' n) L; u, j3 k% ^ &ei, 9 B: a4 P' I& `- p &uiErr);$ T: a: Q8 Z" x0 Q& h
+ B! _: B/ q5 ~3 U! ` SysFreeString(topicStr);1 \) o- R/ Z% X7 G* D1 n! Z
SysFreeString(itemStr); $ G8 i2 f! j; q" I/ l SysFreeString(valueStr); 6 t4 v5 h" T* d9 I/ }0 n( W. [8 L" X2 d
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???) z# m* M ]: v+ d2 [: E- P1 ^) h
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????7 v* _6 ]* `5 `! Q9 H
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9 y+ M# N( D3 Y3 R8 Y& D2.这是request的程序 6 e7 m& P2 N9 M! o& Z: J* F( d4 i// Request a value from Extend : t+ }; R+ f3 }4 b1 J( I- E/ E: y// $ k" v. H6 C* S8 F. d// Initialize the variant that will hold the BSTR. Set the variant's7 d2 D5 ]9 g7 ?1 }
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 Q9 M/ L/ i8 `3 Z% h9 O5 E// BSTR into the variant structure.% m$ y4 D2 B* P1 @4 _
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 S! [3 |7 d0 o+ K9 H8 J
; S* f: k# i- }( c w' | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) t/ I, T" ?) `2 W' W/ Q j. _ VariantInit(&requestVariant[0]); / f: \8 m2 l. H& F& i* f5 K+ i' p requestVariant[0].vt = VT_BSTR;5 O6 ?% I; N" b6 l
requestVariant[0].bstrVal = itemStr; - K) _% l v! T: s- I / E2 U m' }/ q, m3 ~1 A topicStr = SysAllocString((WCHAR *) L"system"); 1 T9 q* ?& O: x9 s! ~' v0 S VariantInit(&requestVariant[1]); # O9 U7 V# S: B
requestVariant[1].vt = VT_BSTR; + R* s# H3 W" R' j+ _ requestVariant[1].bstrVal = topicStr;- y3 T m+ J& K& O% X$ ?8 p
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// Set the DISPPARAMS structure that holds the variant. , i. d2 M: I g ?( x$ M, ^7 K9 _7 \9 v dp2.rgvarg = requestVariant;, v; p: r5 h* W; O3 m: [* \( X
dp2.cArgs = 2;5 i7 o1 \! ]" y
dp2.rgdispidNamedArgs = NULL; ; ?" q* ^, J9 U* F: S dp2.cNamedArgs = 0;$ L2 N2 M" x5 r: x& a+ Z
5 g: ]2 o. [6 S! I* N var.vt = VT_EMPTY;7 {" r2 F3 G6 }* g. j- E, w7 g
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// Call IDispatch::Invoke() " @' U7 i7 s7 p7 P3 p, j* ~7 s/ K& z5 v8 ?0 M
hr = m_pDisp->Invoke() N) i& } R' g* d) v9 R# b' \5 Q
requestID, 9 e4 X9 X7 Z' i& g+ g) }- x! C: c IID_NULL, $ W5 n I: A" g$ T- C2 h LOCALE_SYSTEM_DEFAULT, 9 k, t0 c4 c3 c3 J DISPATCH_METHOD, }0 p7 ?- _( \# T8 H/ g. f- K
&dp2, 6 ~% y7 k' Z: j8 L5 i) x' n &var,) z) W0 z5 B) n, U' [
&ei,7 R8 t) \3 [& Y! A$ `# e
&uiErr); ) {6 e9 u1 c+ {' c* @- [ 7 i$ a4 c" F9 ^- T: T SysFreeString(topicStr);8 B, n- a/ f7 O4 S+ S
SysFreeString(itemStr); 5 t) B0 b3 S0 X0 Z. u请问该程序是获得extend里面的哪个值?& \2 c5 m+ j+ C# X
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????