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:6 ?) c- V3 |+ P$ l
Name = (WCHAR *) L"Poke";/ `. |3 i0 W$ L" N
% Z: Z; d5 ?: f* b# Z hr = m_pDisp->GetIDsOfNames ( ! d/ p& I/ f% ]2 x& p IID_NULL, // reserved0 Q0 P, j) {% z! U+ C
&Name, // Array of names to get IDs for ; ~/ i2 V1 \7 m% Y3 v, ^: [/ Y 1, // # of names in the array O/ U- ^- P/ G1 g9 W7 [8 u1 {
LOCALE_SYSTEM_DEFAULT, // System locale! P& _2 {6 y7 }
&pokeID); // Array of IDs to fill on output( o5 _, T r$ U. i, A
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if (hr)6 e! k' J m7 y/ {5 j0 q
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MessageBox ("Get Poke Unsuccessful");! _- I! z( b/ w" e$ B! n- G
return; ) ^* Q' q: q3 a% ~/ ~4 N }) i+ x/ n O( U$ ^) h
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/**************************传递数据给extend**************************************/. O: r2 [' a' S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " ?- R& ~8 N& K. { & w: C! I9 e1 [) @3 M
valueStr = SysAllocString((WCHAR *) L"1232"); ' |) H% Q$ L1 ~$ U# @9 P$ S3 m VariantInit(&pokeVariant[0]); + T3 y: J) G; p- i: @! R pokeVariant[0].vt = VT_BSTR; : H! t4 x, b* Z: ?: y/ I: d* h pokeVariant[0].bstrVal = valueStr;6 K' M. H6 `4 I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 v6 |. y# m3 x. g7 G
VariantInit(&pokeVariant[1]); & b+ {! r7 G( [0 A4 t( @/ w pokeVariant[1].vt = VT_BSTR; 4 J# a. X" B/ d# }1 q$ E* ~6 ^ pokeVariant[1].bstrVal = itemStr; - F3 X0 m2 M3 i2 y, F" }6 l4 w1 I& ^( D2 @/ O$ k% o4 T: g6 }
topicStr = SysAllocString((WCHAR *) L"system");- B+ [8 U* s/ I0 ~1 m s
VariantInit(&pokeVariant[2]); * o/ r$ s2 N5 F2 ]9 w# t1 K6 ~) E
pokeVariant[2].vt = VT_BSTR; ! ^* v; e0 ?. F0 f pokeVariant[2].bstrVal = topicStr;7 |3 Z& l; U0 ^/ _
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// Set the DISPPARAMS structure that holds the variant.5 Y( X9 ^; Y- o, S* f3 D5 W- V
% w5 b+ p: g, H! P% e# }. ` dp.rgvarg = pokeVariant;7 ?% W1 N1 \3 T m1 X) P
dp.cArgs = 3;- x) M4 G$ {. _& w2 Y( G9 K4 V7 w
dp.rgdispidNamedArgs = NULL; 7 T% s- p# ], K, R) J dp.cNamedArgs = 0;# \5 ?0 ]$ f; i, t `* W
' s: V( Q& h" I3 s; e7 q// Call IDispatch::Invoke()/ z$ K3 [* Q4 n0 b. o' i
' o E/ M. B' }9 N* x' t8 u hr = m_pDisp->Invoke( $ z! [) n" b h6 D& i/ l pokeID,8 b1 O& D' w8 A6 ? T+ ^; F$ i
IID_NULL,, k9 y- `, f" u& ]; e8 l a
LOCALE_SYSTEM_DEFAULT,4 O5 j2 ]' y% U2 q1 [1 c9 R
DISPATCH_METHOD,1 H0 ?+ `+ N( g: T
&dp,7 x9 h: f; ^. t
NULL, $ M% g! ^6 v- z( _+ b &ei, 5 [2 M2 u8 q, L( c( G9 C8 p3 x2 t! t* p &uiErr); # {5 {1 X. L: r1 K5 {" Y 6 ]6 n, Z- ^ k# f- m5 s% ? SysFreeString(topicStr); / h( W1 t) z* ?) {1 a5 f9 q SysFreeString(itemStr); 6 y9 J1 O$ s( m SysFreeString(valueStr);, P6 V8 g5 n) S$ ]8 T4 t' t8 |* W/ G0 k
- ~2 i9 }$ m, ^6 `. 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??? , ?4 d d. M7 s* v5 T h# E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????4 {% X \: [7 D+ W
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L& g8 O2 D9 y' _6 q2.这是request的程序 " L5 J% b# T# t( h// Request a value from Extend % T' L7 q; ?/ W0 Q" o% Q: K//) Y& O: O& p2 g7 ~+ q3 I
// Initialize the variant that will hold the BSTR. Set the variant's8 P$ m0 Z! H- h6 s' y- P
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 L3 @# |8 H" M, w// BSTR into the variant structure.1 J! E7 \5 a" ]% D2 ]
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # X. g0 O* A2 [; }; R' f2 P 8 T2 |5 U* K0 z* ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / B# n4 R9 R! L8 d VariantInit(&requestVariant[0]); ; u. k k1 N6 G! u) } requestVariant[0].vt = VT_BSTR;* H1 [2 O; S$ o( q
requestVariant[0].bstrVal = itemStr; - K! p7 {" D! N# }! @$ ]# a! O7 A& x, Y& `
topicStr = SysAllocString((WCHAR *) L"system"); 9 S& x1 h' S4 \ VariantInit(&requestVariant[1]); 6 V+ J+ `7 Q6 s" Z+ i4 H& k8 v; x: w requestVariant[1].vt = VT_BSTR;1 f3 s9 b1 |( z0 Y# j$ R
requestVariant[1].bstrVal = topicStr;0 s5 r8 Q1 R8 w* D
6 @- n" p9 O* \& \& b: B* F// Set the DISPPARAMS structure that holds the variant. ( x& T i+ d& j; R' i& p $ a! {# R3 q# d# I dp2.rgvarg = requestVariant; ( l9 U( z' W2 k; {* k dp2.cArgs = 2;7 `" V- j8 v+ s+ I/ G0 _4 {* z* F4 J
dp2.rgdispidNamedArgs = NULL;6 h- R4 @* R% \5 C4 Q. j( W9 e( W
dp2.cNamedArgs = 0; - O c2 Z- d0 C 8 I7 W4 _; Q0 b7 y- m5 A var.vt = VT_EMPTY;& D1 R; k( l, C8 Q7 ]+ N
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// Call IDispatch::Invoke() ( X+ J- I* k$ F, ?/ Z/ N: | I8 i( X7 e3 j6 \" U: z
hr = m_pDisp->Invoke(% L5 C6 ~5 b6 h/ V3 {1 K
requestID, 7 n! ]" Q* M u( J% X IID_NULL,+ }3 f3 S) h3 A5 Q7 ?: w: h; {; p5 C
LOCALE_SYSTEM_DEFAULT, " _. e6 M0 ~1 L c# M5 f M DISPATCH_METHOD,( A* u5 t# I& p' m2 m. h$ K- Q
&dp2,) l; v7 m4 @1 X2 Y @3 x* X! w
&var,% h7 Y: x; p' S, G
&ei, , r9 e3 r8 y9 V( o6 ^1 |3 |7 g" A &uiErr);2 {/ f* [) ~; T4 k, Q* [) c* n
, F* l9 F, N- u1 s SysFreeString(topicStr); ( S# C1 ?# r7 b a SysFreeString(itemStr); 2 b5 r* y9 y' _3 B- t. d请问该程序是获得extend里面的哪个值?" |9 d) j, \4 P6 D6 ]+ [1 Q
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????