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:+ V9 r. t, a: n2 H
Name = (WCHAR *) L"Poke";8 k! ~3 e2 x+ _ Y, b
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hr = m_pDisp->GetIDsOfNames (7 o8 Z9 J" [ S' C' ~7 I
IID_NULL, // reserved . h- b9 X% y# i/ J6 |5 x &Name, // Array of names to get IDs for 1 Y) ^- T( R2 {4 Q 1, // # of names in the array 9 C* r( n2 i7 M/ W LOCALE_SYSTEM_DEFAULT, // System locale 0 S0 H: `4 | ^. I1 W& o0 G &pokeID); // Array of IDs to fill on output, U8 o; j3 ~& a0 j1 O; D+ ?. m# Y; R
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if (hr) 7 P5 [# ]4 z- L2 e1 x9 t* _ { 5 O, T8 {; R" Y& m/ R MessageBox ("Get Poke Unsuccessful");; m7 l& G' M3 e2 a; Q# f ~ C
return;& b" y& a6 K) v' z" O* h. O, \
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' t& {: S6 o( q3 M* c; _/**************************传递数据给extend**************************************/5 ^) K% `2 Z2 S/ g0 s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % ~. b# O# X- p2 E ) S: I) O( q J, u valueStr = SysAllocString((WCHAR *) L"1232");6 u, Z( _* R8 p* t" t
VariantInit(&pokeVariant[0]); # m& d$ X5 E2 |! V6 }& K* Q
pokeVariant[0].vt = VT_BSTR; ) A, H4 f9 t, F7 a. u2 _! n. r pokeVariant[0].bstrVal = valueStr;5 r. y1 }( @ {! m1 c6 r
8 g! l& Z! a5 E+ I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 ~7 N( ^5 u4 f5 u0 i! a
VariantInit(&pokeVariant[1]); 7 `5 _ S, U B. z1 D( G5 q& ~2 t1 m pokeVariant[1].vt = VT_BSTR;9 L1 ? P8 G: u+ M+ O+ u
pokeVariant[1].bstrVal = itemStr;8 m9 c5 k3 r. O; }. Z9 `, e; r
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topicStr = SysAllocString((WCHAR *) L"system"); - P5 `! F7 _% W VariantInit(&pokeVariant[2]); ! F: T( A" |6 T/ @8 ]1 u pokeVariant[2].vt = VT_BSTR; ~" Q% p0 }$ f pokeVariant[2].bstrVal = topicStr;2 l' R1 Q; W! [* t* O$ V, D
6 S9 [. W4 v, [! E// Set the DISPPARAMS structure that holds the variant.: h K9 O4 b# o
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dp.rgvarg = pokeVariant;0 _) Q) _! s3 C9 P1 K" |
dp.cArgs = 3; # m& s; ]( D# q# _1 C dp.rgdispidNamedArgs = NULL;, @$ U/ P4 ~% m1 A) o: m
dp.cNamedArgs = 0;# [* `3 ]9 V9 S& o9 k/ o. g3 S
. L- `, n; \6 ]7 p" A// Call IDispatch::Invoke()* d. X4 A9 t1 |* z% ~
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hr = m_pDisp->Invoke( 6 ~' y) {$ V& Q pokeID, ' y" v0 I) X2 s) g8 H& B9 S9 V7 Y IID_NULL, 7 l7 h) a: |. T, v% j LOCALE_SYSTEM_DEFAULT, * m, k: j# \; U/ E/ W* o DISPATCH_METHOD,( S; l( R+ a0 k( U8 M& U9 Y5 V
&dp, 4 Y4 U* V' [5 P NULL, i+ I. D5 \& \/ G &ei, 8 g F; z0 w" t &uiErr); @9 l. z8 A' y/ x$ [/ b2 i4 H
- u7 c! V1 f; K# h' K SysFreeString(topicStr); * A4 e4 ]- Y( M0 W r SysFreeString(itemStr); - f. x5 o% ?% p+ v3 X# T* Y; {( c SysFreeString(valueStr); . @- e; S" ~* t. l. d3 a4 t/ c: { 5 B6 M( c9 r( N- g5 d& e7 _* }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??? 6 z, i. P/ S. i+ `" e; d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???? % d" M) z! K5 Z) N! Q B f 0 l6 r: q% W! T' s( x- J$ @) V+ h : p& e4 m3 V, r. m2.这是request的程序# i9 a& o! @$ w" k4 s; R; ?3 H
// Request a value from Extend0 }& i; }$ u1 x0 J y
//) l) T1 G3 e' x O% {6 _( T
// Initialize the variant that will hold the BSTR. Set the variant's 3 S; }, ]' I5 I7 v; F7 l$ d// type flag to indicate the fact that this variant holds a BSTR. Place the * |* ^4 O* r) F) s, g& t3 w* T// BSTR into the variant structure.) { \9 M0 J; o% _( }6 Y ]- A
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 \1 S* o, n+ U. J9 l7 Z
3 ~3 b) ?( d1 V1 w9 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : p; C; {5 `! ]0 n* ]" I VariantInit(&requestVariant[0]); ; `, L8 j& f$ [& J0 |1 h* ^
requestVariant[0].vt = VT_BSTR;* ^% j- B- `* N1 a* I
requestVariant[0].bstrVal = itemStr;3 C1 d2 g7 R, {- I+ N0 t
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topicStr = SysAllocString((WCHAR *) L"system"); 6 e+ G" j' m2 W1 u: e: ]! ?# y VariantInit(&requestVariant[1]); : b4 d: {* h1 [# p& |+ n requestVariant[1].vt = VT_BSTR;7 l' y9 |% p% |$ ~- J j7 p( j
requestVariant[1].bstrVal = topicStr;- a( [4 _, V7 k O, S
" E" d* K( o# L// Set the DISPPARAMS structure that holds the variant.+ E1 m6 W$ M3 k2 P
7 h$ O& _: e/ p( E7 k dp2.rgvarg = requestVariant; & o2 S! l" }- x6 s dp2.cArgs = 2; / V+ d8 p# h, b dp2.rgdispidNamedArgs = NULL; / Y$ I% j7 A& B; I( i dp2.cNamedArgs = 0;3 B% I+ _0 Y9 f8 Q2 J6 m' \( V9 _, F
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var.vt = VT_EMPTY; ; H- R! t. O# P$ r0 I - v. D* ]& d+ r# [2 D// Call IDispatch::Invoke() 7 {9 }& q3 q, O; q. V+ [ ^+ j; m# g" ]! J" q5 p
hr = m_pDisp->Invoke( ; D( e0 I. I5 K' ? a# |" o3 { requestID, : y7 k; X$ F0 ~! X4 K3 W IID_NULL, 7 z( ?$ M& H& B. y" } LOCALE_SYSTEM_DEFAULT, " i: y( d# P2 j. Z) S5 U T" j& C DISPATCH_METHOD,7 T9 v5 @+ \3 m: C5 o- f* Q* x
&dp2, + R' D7 s2 C9 ^! l &var, : v' D E. Q. x &ei,7 \. @+ ?3 W2 @# K
&uiErr);+ r7 ?4 l% i- x0 S) s; Y3 ~5 V
+ w* c, J% Z ?8 J( i SysFreeString(topicStr);/ g! a4 s& F1 a8 e A1 W
SysFreeString(itemStr); 8 H! T2 M, R* V" n( _请问该程序是获得extend里面的哪个值? 3 e! Z3 J+ B3 a: d5 Q+ 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????