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+ U7 G g' k% n& s
Name = (WCHAR *) L"Poke";, ]3 x2 S0 D% S9 F0 E
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hr = m_pDisp->GetIDsOfNames ( ' |' o% }- R+ T: A; d; ?1 [+ S- V IID_NULL, // reserved 4 l( z$ f @6 q. N' \ &Name, // Array of names to get IDs for h% U* h, a% j' x. J
1, // # of names in the array 5 h% x* s! y& M9 A( _ LOCALE_SYSTEM_DEFAULT, // System locale$ Q* A# O2 [+ D4 ^
&pokeID); // Array of IDs to fill on output; ^5 j1 E/ z9 W/ E& x M
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if (hr), G: M, W6 r( n8 V$ J! M
{ " I2 Z8 l; `) n MessageBox ("Get Poke Unsuccessful");/ m) j# V" _5 x
return;+ M4 \; K3 \9 P; \8 n$ P6 X1 S) c* b3 Q
} 5 J" x" i) E. i1 \' @3 [7 ]% i; m6 L# h' E, X1 l8 _8 R: Y7 L& H
/**************************传递数据给extend**************************************/ . `3 t, t; [. x# V' m1 c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* B; \5 b6 q$ X+ P2 m% o
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valueStr = SysAllocString((WCHAR *) L"1232");( K: A; M2 q- L) h+ s8 m4 u8 G
VariantInit(&pokeVariant[0]); ! Z: ?% _5 k8 B! o0 X. v- [5 O! S* v pokeVariant[0].vt = VT_BSTR;8 h( W9 F1 t- n: X
pokeVariant[0].bstrVal = valueStr; 8 }% j7 j5 w6 ?7 H- B, j+ m, l * B; ?, K* r" ]$ d1 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( L8 }! h5 {' R4 `' E
VariantInit(&pokeVariant[1]); & G2 V" _% K2 _+ t9 z pokeVariant[1].vt = VT_BSTR;/ x* c$ T, W2 b+ G+ f+ j8 p
pokeVariant[1].bstrVal = itemStr;6 [9 S6 G! Y) O8 ^
2 _& g% p- b, I topicStr = SysAllocString((WCHAR *) L"system"); ! C# ?! T* n; T6 q2 {) P9 q VariantInit(&pokeVariant[2]); * d9 N" w0 Q, C3 B3 l7 M: k pokeVariant[2].vt = VT_BSTR;' ^- a4 c5 M9 @: m G; U; p+ o! H5 O
pokeVariant[2].bstrVal = topicStr; * C/ w, T) ~9 [2 h 5 B* ]% S5 T( s// Set the DISPPARAMS structure that holds the variant.. P. d! ~* r8 {1 n7 P0 i5 s ?9 ]
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dp.rgvarg = pokeVariant; - d6 z; E5 C* c6 V dp.cArgs = 3; 5 ]6 B( w6 e9 }8 b+ R0 a" S dp.rgdispidNamedArgs = NULL; ) \) _; }' [5 Q8 o dp.cNamedArgs = 0; - H' z W& J: M) ]" `. V1 \; O9 v& B : A: I( m* N* U3 X# ~// Call IDispatch::Invoke()2 F9 ]( G9 d* H. a- q( ~" y
- T$ D% r2 N* L: D- a4 U! Y$ }, d hr = m_pDisp->Invoke(0 H' X* o8 ?- s! t* j
pokeID, 2 P# y( T% a. A1 ]# A& n1 N IID_NULL, + W! V w6 Q/ ~. d) j( i7 Q- z LOCALE_SYSTEM_DEFAULT, - B4 ]* H! C- ^' k7 W" g0 J DISPATCH_METHOD," Y, }/ y0 ` } m. v
&dp,* h0 M% |) }! A4 ]. b4 z* I5 O: ^
NULL, ; u, m* S; b) ?2 G- Q &ei, ( r1 `" G, X7 j3 Y8 x$ u &uiErr);0 o8 f+ `' W; ^( E! W) r' c
: F- ~ g/ H$ h$ ^. g* B) P8 ` SysFreeString(topicStr);" l. D6 p, ]# e& Z$ D2 S! O
SysFreeString(itemStr); u2 `# }, x7 ]$ o4 a3 `. P SysFreeString(valueStr);/ A( S4 z* p$ d8 f' U) L7 {
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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???7 J9 k; E G6 ?1 J0 ]
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???? 3 o/ ^+ a3 }+ V( l# k- U, V: i- E; n. M0 e2 h4 q# X$ u
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2.这是request的程序 + n1 V/ f. c: ?// Request a value from Extend; m2 j; S& g0 {1 h4 l4 [! D
//! R2 P% c) s, @
// Initialize the variant that will hold the BSTR. Set the variant's3 b5 Z! p. r' L
// type flag to indicate the fact that this variant holds a BSTR. Place the) s8 o7 J* ]+ d" d
// BSTR into the variant structure.2 r- D9 ~4 J2 D