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:$ i0 {+ n X1 x7 K
Name = (WCHAR *) L"Poke"; * i+ v8 X8 [4 \$ T) A3 G , I* ?: p+ u$ v" Z" W7 M+ P$ k hr = m_pDisp->GetIDsOfNames (: ]0 }* y6 v* S+ ^5 X
IID_NULL, // reserved# s; A# X, l+ Z i/ i
&Name, // Array of names to get IDs for ; _6 g% a, B' M0 b. r3 t" A/ R& p7 `3 ] 1, // # of names in the array( e; d/ P& T- F
LOCALE_SYSTEM_DEFAULT, // System locale4 O3 `- C( u+ X( D7 a8 U
&pokeID); // Array of IDs to fill on output, y3 |3 U3 j# p( Q/ T3 @3 o7 k
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if (hr)% I4 o# V, s* U0 I8 b9 g
{+ ^7 Y, ~( \! ^3 i# {
MessageBox ("Get Poke Unsuccessful");5 r% U* ?- X( a4 s, l6 J, d
return; + C; e4 a7 O$ r0 Y0 c }. t7 K' {7 q" u9 _
2 K$ C5 i. v' V- g6 h/**************************传递数据给extend**************************************/ / d7 |( {. k9 z8 B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 P l5 @, w0 Y7 l( H, C2 N
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valueStr = SysAllocString((WCHAR *) L"1232"); + y& U6 A% f" ?, m VariantInit(&pokeVariant[0]); * f8 l1 [! H* v pokeVariant[0].vt = VT_BSTR;+ J* U/ c% f7 y2 Y
pokeVariant[0].bstrVal = valueStr; 8 J g: Q3 c. l6 Q! c5 g! U* J+ G! x, R$ y8 ^3 a6 U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 P- F6 ? N: L; T VariantInit(&pokeVariant[1]); / j4 Y8 A+ X! R( j/ z- V
pokeVariant[1].vt = VT_BSTR;) t* o7 B% V; \ ^/ u7 J8 l
pokeVariant[1].bstrVal = itemStr;* [0 y& @8 J, a
. y" v1 {. E( l; r7 |9 X topicStr = SysAllocString((WCHAR *) L"system");( S) W5 r" C8 F: c- F! f c j1 Y, H
VariantInit(&pokeVariant[2]); + A! i5 b0 d" j3 k: l pokeVariant[2].vt = VT_BSTR; % t, ^2 s/ {% a: U U' X. O pokeVariant[2].bstrVal = topicStr;8 ^; I- @9 f( F, g+ z& Q
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// Set the DISPPARAMS structure that holds the variant.; Z" y- H8 J$ J0 g% r8 u3 T4 w
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dp.rgvarg = pokeVariant; 6 P6 q+ V, S4 b" V- Y3 I+ S dp.cArgs = 3; ( {3 j1 o9 F/ T" g9 j& a2 g7 K' x dp.rgdispidNamedArgs = NULL; 1 v5 C' o4 A" H: t8 P9 f" \ dp.cNamedArgs = 0;& d! z$ x+ n+ a7 P1 D
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// Call IDispatch::Invoke()) X/ C) v/ h4 B1 g
" T2 [" v$ f, _1 p3 Z) k2 s# h hr = m_pDisp->Invoke( 8 b7 E: b7 k* s ^ D pokeID, ) U, k! x! P, Q5 d1 u IID_NULL,+ b& K/ d) }1 e; e m* x3 J
LOCALE_SYSTEM_DEFAULT,' z) }) s* W" c
DISPATCH_METHOD,. v! n# c/ f5 c( m7 H
&dp,4 Y2 h% o$ q9 h- L/ O, A2 F
NULL,8 o; T$ ] Q& o& M7 `
&ei, ) P- Y( B/ {$ R" n( h# V &uiErr); G, i0 X, A$ s1 n1 k7 Y$ Y" C [
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SysFreeString(topicStr);, m8 `$ j S- I1 O
SysFreeString(itemStr); ' d [9 B- p. q; x& D SysFreeString(valueStr); + x" l, j/ A/ R # ~8 P9 C; U' I5 G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???# y& N' e" d3 ?, C# [7 M0 p
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???? ; Y' B8 Z: J6 A) Q: y) T3 \ % X1 \) u- Q# X6 \! x3 Z: z: u1 z# l& [0 d' o/ d% e
2.这是request的程序 * r1 a( W$ o: h+ f) N// Request a value from Extend # a% B$ w- L3 E// 6 B7 O1 ]* c" A9 C+ m// Initialize the variant that will hold the BSTR. Set the variant's ( P& |( p) ~3 e8 N$ ]// type flag to indicate the fact that this variant holds a BSTR. Place the e/ w8 H( l4 U% g// BSTR into the variant structure.# z6 r( C! W+ x
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 S6 D, a* B9 z. W! J7 \. |
, ]1 b* a1 s+ C; S1 q- {& K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 P! R8 n9 ~7 J" R! ~/ |6 b3 s
VariantInit(&requestVariant[0]); - K8 F& i8 A' q/ \; K
requestVariant[0].vt = VT_BSTR; 6 V3 t5 \# ?( X$ j, l$ r0 [ requestVariant[0].bstrVal = itemStr;% y" F2 y. p E/ ]3 u
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topicStr = SysAllocString((WCHAR *) L"system");( f1 U* Y2 N# j7 z1 n& l: I
VariantInit(&requestVariant[1]); 9 ?" ^( F' @, q8 ?7 \9 U requestVariant[1].vt = VT_BSTR; : e' k' U5 w t) { requestVariant[1].bstrVal = topicStr; 1 l! p4 O$ W9 m/ C) \; Z " D3 d& ^# ?; p. g7 X( j7 s6 T. }// Set the DISPPARAMS structure that holds the variant.$ C) @- s6 t' L) Q! `+ C
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dp2.rgvarg = requestVariant; " H) i# n, P8 j, Q) ? dp2.cArgs = 2; 4 M' ~" \7 `/ D! \2 D0 C dp2.rgdispidNamedArgs = NULL; : F" _% t) N% g" }) A. A% j dp2.cNamedArgs = 0;5 c+ k |- a: w; I( y. Q
% Y0 I8 ?, s( [ var.vt = VT_EMPTY;& s1 D& P3 c3 z0 _, b: p: c/ B3 {4 f$ {& a
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// Call IDispatch::Invoke() % E; d$ J' Q) {; ?$ J7 h% O$ @9 P/ A$ m0 t3 m, D% ^0 h3 G9 a
hr = m_pDisp->Invoke( 0 z: H# V+ y7 o* |$ v; Z9 h requestID, 5 [5 b. b0 ~( s) D. m. } IID_NULL,. \% b! {$ P, S
LOCALE_SYSTEM_DEFAULT, n5 P5 T l! D2 L$ f DISPATCH_METHOD, ) l! N. d" |( z2 V/ n9 A. H &dp2,4 V( M# E& G8 n8 K: @" M
&var, : F, e7 [1 S2 Q: h8 b &ei, + z9 e4 d8 W4 P) N6 i2 G R8 j &uiErr);5 g( ~! `# _+ g& Q% D
, {6 T9 P& _* C) V, a1 O1 P SysFreeString(topicStr); ; w' Y# ?2 a& ]! _6 ~, _# V SysFreeString(itemStr);1 ~/ [" N3 d2 I5 Y* q& |
请问该程序是获得extend里面的哪个值?$ j! p. u+ Y4 H$ l
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????