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:1 Z" {0 |6 o/ h6 Q, z" V6 R
Name = (WCHAR *) L"Poke"; * @& f& P8 ?9 C0 Z 3 W" o* Z) `8 ?- o! E hr = m_pDisp->GetIDsOfNames ( : o; u: \; K% P+ d% t. v9 ? IID_NULL, // reserved1 M, ]3 y* ?, X9 Q: b
&Name, // Array of names to get IDs for: T5 s! y; j( s# a5 x, k& E3 A
1, // # of names in the array3 U& V# A0 X1 Q4 f4 o8 y6 C0 d
LOCALE_SYSTEM_DEFAULT, // System locale2 p6 J' G' Q% ]3 x. C9 Q; V( H
&pokeID); // Array of IDs to fill on output. N# a, w t0 c% R. H$ ?7 Q
& m, G6 v C( B! `. o. \ if (hr) / V* p: `* C3 ] {% J: @; t- r+ {
MessageBox ("Get Poke Unsuccessful"); , U2 ]5 Y4 Z/ k2 g- Q return;% f; X6 e9 M# j" v$ V* [/ \: G
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/**************************传递数据给extend**************************************/3 n8 z g0 ?' U4 s! n5 T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 y3 E) s1 N# z
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valueStr = SysAllocString((WCHAR *) L"1232"); 3 Y" h: H7 \- k( ~. U# w: C VariantInit(&pokeVariant[0]); " R Q8 n# X# c) I
pokeVariant[0].vt = VT_BSTR; 1 I4 Q) q) h2 K8 x/ U/ H' X pokeVariant[0].bstrVal = valueStr;4 z. R2 g' d3 l3 g1 j% P: o
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 `& x( A0 q F6 |& e" F' H/ a
VariantInit(&pokeVariant[1]); ' m8 A8 v8 F9 |8 c7 o5 f0 F pokeVariant[1].vt = VT_BSTR;( S% X- v# j& Q5 A, Z- _
pokeVariant[1].bstrVal = itemStr; 3 h1 U! ]* R& D9 | P4 w6 p 4 z" p. E; ?( D" _9 b topicStr = SysAllocString((WCHAR *) L"system");: _+ H3 z; o6 z3 f; S$ n
VariantInit(&pokeVariant[2]); % g" D! X& ?' g0 F
pokeVariant[2].vt = VT_BSTR; . b% T" ^* ~ S pokeVariant[2].bstrVal = topicStr; " n6 J8 P( x' V* R" M1 u) S- B. B
// Set the DISPPARAMS structure that holds the variant." _+ ^* s, k: a5 b& p. i6 J/ n
1 D* e0 o @. q dp.rgvarg = pokeVariant; ' \4 b/ K& o0 j+ k dp.cArgs = 3; 6 M" g6 I' ~, _% W% A dp.rgdispidNamedArgs = NULL; / I: F" Y. B5 I. y* o3 ~ dp.cNamedArgs = 0; : H% K; P: G; ]0 c, ]) E( {3 O' Q3 w4 B# @1 w% H( s* K
// Call IDispatch::Invoke(). `( e$ n; I5 c2 w8 n9 g* j
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hr = m_pDisp->Invoke() s' d M+ z6 S7 C4 h, d' J! z! V
pokeID,7 z3 H) j2 c5 O& ^" A. g c
IID_NULL, % n+ `0 I1 }; C4 m LOCALE_SYSTEM_DEFAULT, + {! i8 @4 ^' g2 z2 @# ^ DISPATCH_METHOD, + X* c, i4 R; T# c) t+ O ] &dp,8 C3 B1 [/ D& k$ x/ `
NULL, s4 d5 x4 J5 Q- Z
&ei,+ ^7 g" V" }% [* Z" I
&uiErr);1 m& P4 x/ R% h2 Z7 W. S6 a
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SysFreeString(topicStr); 3 m& s: M: A. h g; P8 p SysFreeString(itemStr); ' C- F5 T, f* @9 z* ?3 Q- ^* F SysFreeString(valueStr);2 O* f1 h5 K: @2 N. ]% r1 ~! O
8 n5 |* r; t8 K+ 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??? 7 f& n% l% I/ Q: O7 v7 u9 Z+ i7 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???? 1 v2 `: U1 i j$ j% c2 p 1 y6 e) g3 i* Y. W, q2 B) i# K- K x% N2 L! x, z
2.这是request的程序6 V: L! d- G+ `8 w$ G
// Request a value from Extend ' z: W! l+ p. E// # B+ `" \& p. x/ l5 Q* ^$ }// Initialize the variant that will hold the BSTR. Set the variant's5 j& P5 I u. M! E3 v
// type flag to indicate the fact that this variant holds a BSTR. Place the$ g3 w- ~+ k: y( ?3 U9 D* E
// BSTR into the variant structure.2 ]3 T; O1 ~9 |3 x: C9 ]
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! U; u9 S) X$ Y) E3 w9 R: c3 X+ N
V) `& {% W$ R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# k- z7 i, x l( |; g; n1 ^# ~9 u
VariantInit(&requestVariant[0]); D1 ]1 Y8 U4 t- v( b& p8 \; Q
requestVariant[0].vt = VT_BSTR; # \# o. U \# \( o) Y. ^ requestVariant[0].bstrVal = itemStr;2 h# j2 P) b/ q. I4 k$ v) E" u) S
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topicStr = SysAllocString((WCHAR *) L"system");/ t5 E0 z8 t' O8 N2 ]
VariantInit(&requestVariant[1]); $ T7 h0 k9 Q/ e
requestVariant[1].vt = VT_BSTR; 6 D. \7 ` ?" }8 u* |4 e m requestVariant[1].bstrVal = topicStr; 2 `: k% X8 Z& J# Z9 @ ' F4 o6 w4 x6 C, D7 A M8 L// Set the DISPPARAMS structure that holds the variant.4 C5 f# V E) Y3 x- J: }
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dp2.rgvarg = requestVariant;& z5 f7 ]# @3 T9 m2 p. P
dp2.cArgs = 2;$ v1 K, t6 O J& ]# L! j$ ^/ Y
dp2.rgdispidNamedArgs = NULL;6 |+ [$ Z* u# N
dp2.cNamedArgs = 0; ( n# t$ Q2 g! y# M& r( t! D8 `2 M ' x0 E( t7 m7 n* M4 J/ h" R var.vt = VT_EMPTY; 5 U- N% K% O: B2 L8 x" R # U7 h+ T& C+ @+ |8 R% y// Call IDispatch::Invoke(): a# n. J/ P) {5 E( f
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hr = m_pDisp->Invoke(/ R1 B) [# ]8 \9 W! x) P
requestID,, P+ Q$ d6 B; y
IID_NULL, 8 b5 `6 c$ g: ` r9 Y( T LOCALE_SYSTEM_DEFAULT, 8 o7 C5 F j# ?/ Q' p7 c DISPATCH_METHOD, " \6 j& b* c# z& [+ g, G' u &dp2, % _! Z! |) Y) _$ W4 y &var,, f: U- [* v- S3 R* c% d
&ei, ' G0 J/ c2 |! b3 n2 Q' ^8 R &uiErr); * m1 r% l1 F# I/ v" k: _9 m6 W; u( c( \& i3 _/ H1 N! D6 i
SysFreeString(topicStr);% I! L9 y& r u" @2 n: V" R4 X
SysFreeString(itemStr); Y$ G! z& B( X; O. f4 A
请问该程序是获得extend里面的哪个值? ) g9 S6 L1 C0 }; r, y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????