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:3 I* ]7 U6 r* K( S4 D1 ]
Name = (WCHAR *) L"Poke";9 p& N/ r" ?6 d* }- A8 F
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hr = m_pDisp->GetIDsOfNames (2 y4 f/ b) v9 t- W- v1 c
IID_NULL, // reserved ) ^* w+ A- s7 Y, d4 _9 h &Name, // Array of names to get IDs for 6 d/ \3 {9 v7 I9 u6 { 1, // # of names in the array. p/ P) x, | w8 X# @! J: s
LOCALE_SYSTEM_DEFAULT, // System locale& o8 j9 q8 f& j4 K
&pokeID); // Array of IDs to fill on output: u8 J R( T: G1 ~* U" L
$ O9 e' n- j9 ~! M! @ if (hr)2 P% E/ H9 o/ g, o) c! M2 K
{ + }. _6 I8 k$ t$ ` MessageBox ("Get Poke Unsuccessful");$ J5 Y0 ]9 a2 K( S
return; 3 N* y6 d) |3 ~" z: R+ t3 V1 t _ } ' M" f9 u% ? F5 \' t" q/ o$ X( q+ i* G
/**************************传递数据给extend**************************************/ 6 s8 l2 L: R2 H) }8 K) \5 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . t4 Y2 a7 Q+ V& I; H 9 |" S- l) r8 J& Z# T% j
valueStr = SysAllocString((WCHAR *) L"1232");) R% C% }& n3 p- R
VariantInit(&pokeVariant[0]); + Z$ r" _) ]3 ~; S* ?" m9 H pokeVariant[0].vt = VT_BSTR; 6 D4 C/ B/ b6 h3 o2 r4 I pokeVariant[0].bstrVal = valueStr;: T0 ^2 Q% S" T2 N3 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 U, q" S8 x& E/ {* ]* n VariantInit(&pokeVariant[1]); : n* v* H, G# I ~9 V
pokeVariant[1].vt = VT_BSTR;' C$ Y9 ]# b6 ?
pokeVariant[1].bstrVal = itemStr; # _% G% }8 k4 ?* [% F - M! c6 C/ D/ d# W$ c, P, a7 ? topicStr = SysAllocString((WCHAR *) L"system"); / R, P9 [' _5 e VariantInit(&pokeVariant[2]); # p" d! Q& O2 I pokeVariant[2].vt = VT_BSTR;5 z7 q3 W; U$ _/ R+ C' c
pokeVariant[2].bstrVal = topicStr; ) ]. r, W$ p& f+ I9 x4 M2 {5 f! S4 t# l! k' G
// Set the DISPPARAMS structure that holds the variant. : O4 }3 _' N4 j5 X! D2 x: r8 x W7 @" C# g6 x0 j) [
dp.rgvarg = pokeVariant; 7 {* f F' S. b/ g3 K7 ?, }( R2 e dp.cArgs = 3;0 B* i- h9 R+ S6 z3 ^: H
dp.rgdispidNamedArgs = NULL; & w i+ y% q A8 Z7 J dp.cNamedArgs = 0; + u w8 q* b* l C / c8 q% A( H- \$ q// Call IDispatch::Invoke() D7 v( a0 s- v+ W
) @$ c. q, D I& L6 [ hr = m_pDisp->Invoke( % ]6 z% u4 { M W pokeID, 3 j4 y) k- Y2 F5 R% m2 M- O IID_NULL, 5 z+ e( G3 }$ x2 z. J6 E( ] LOCALE_SYSTEM_DEFAULT,: ~) P" e. N, f$ N( M
DISPATCH_METHOD,, ]: T, C3 t# }9 ^
&dp, # S8 [" P3 H; l3 o) ~; }2 ? NULL, N! x& C% o# z" B' [& V+ Y
&ei,; Q6 V. [! B, T, ?* {) A8 u q
&uiErr);) S1 h# ^* K6 _% k. W9 A2 f' i. g
1 L7 _, l" v+ a" D( V2 { SysFreeString(topicStr);6 b" r" J: j( N7 D
SysFreeString(itemStr);/ [* k4 k* W9 H* X
SysFreeString(valueStr); 3 U" `/ ~$ r2 z: `( I/ _ e6 v( x 8 J& v# I R# a, }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 ^" `' O' x' d+ W7 W0 K6 A
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???? & i' d$ I2 s- P* E 5 Q, Y$ v' y8 `* j 4 h* l. |- J: W: e( e# z! p, P& g2.这是request的程序% D Q+ [) y8 R* i3 k
// Request a value from Extend/ w; |5 s5 e& }6 u& v
//: I8 X1 q% m, A
// Initialize the variant that will hold the BSTR. Set the variant's* ?2 m4 }' A& u t; e
// type flag to indicate the fact that this variant holds a BSTR. Place the5 o) Q) `3 H, s7 o/ x- a3 m
// BSTR into the variant structure.$ z; g+ E% N! w7 ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 B8 S8 ~; W2 F% U# i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' b/ ` I0 {: K. u4 h, D# j
VariantInit(&requestVariant[0]); # U* d- t+ N+ j. N8 D$ q, L
requestVariant[0].vt = VT_BSTR;& U v% ~8 ]( m7 c' D+ ^5 k: Y- `
requestVariant[0].bstrVal = itemStr;8 H- Q6 @8 u4 v/ K, A8 C; c* c
?* ?9 S9 Z+ C6 F Y topicStr = SysAllocString((WCHAR *) L"system");: Y' v1 }- s$ F4 G
VariantInit(&requestVariant[1]); 1 B8 b; m1 R; [8 G8 K# p7 b8 N requestVariant[1].vt = VT_BSTR; : W6 E: I* q, l, l4 e( s/ ^ requestVariant[1].bstrVal = topicStr;; B# @# P: a3 H/ r1 M2 a
, u; f8 a$ c" b" G- F8 k" G// Set the DISPPARAMS structure that holds the variant.+ I: n, d4 N$ g" T6 k& I0 u
4 b5 n' P' \7 T2 ? dp2.rgvarg = requestVariant;% p4 O, J. S5 \6 z6 \# _, x
dp2.cArgs = 2;2 V6 S( Y& d& R- t/ R# a
dp2.rgdispidNamedArgs = NULL;$ _, r, d7 X4 a$ y$ H
dp2.cNamedArgs = 0; + J8 S$ g1 @' ^: A$ V- g |0 i+ y' Y0 E, O
var.vt = VT_EMPTY;2 r! B% t- `& Y( r
+ X5 E0 a: T; P# t- O+ s
// Call IDispatch::Invoke() 8 |) B1 j0 T. c n s4 v 1 }8 s6 U/ {- x# t) w hr = m_pDisp->Invoke(! G. O2 c7 g/ y* |4 U& i
requestID,, s" m) F" m7 N* U2 @+ H
IID_NULL,3 T; A! V4 ?! _* y# n
LOCALE_SYSTEM_DEFAULT, 8 u. o9 N3 I: _; ~, U0 L& ` DISPATCH_METHOD,. q" F1 l4 s1 v/ w* |- Z2 N9 m
&dp2, ' o, s; c! J9 ^) U9 I1 a6 ] &var, 9 ~0 O& ?* S& H) Q; M- A &ei,% Q C4 j" @- k6 _$ D3 ^
&uiErr); 0 c5 o0 h' J" t0 G7 h2 u6 f' R3 ~. {2 D; ?3 T8 y( W
SysFreeString(topicStr); + B( h6 ]/ n q$ x1 k SysFreeString(itemStr); 9 }6 _ ?! ^( v7 j1 D! X请问该程序是获得extend里面的哪个值? ) g! ]# {& e8 I$ ^2 Z3 ?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????