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:# S- e0 x% O. R4 p9 b
Name = (WCHAR *) L"Poke";! W& }" z- y2 }' z& [- A
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hr = m_pDisp->GetIDsOfNames (. r! p. q6 x" o( k1 G" V$ B) `
IID_NULL, // reserved 3 d8 A( X* N1 n0 q/ R &Name, // Array of names to get IDs for & i2 d/ W' M6 `/ @: |2 n- D' H 1, // # of names in the array 7 R5 t+ c9 ?8 I( c9 a5 p- N LOCALE_SYSTEM_DEFAULT, // System locale 2 t" A$ p3 N2 D; J &pokeID); // Array of IDs to fill on output- _# M5 r8 Q+ R. v; z
+ V# ^( a0 P0 n; H9 I& o8 Y& n if (hr)) Q( |3 ^ P* j' q6 X3 f8 f
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MessageBox ("Get Poke Unsuccessful");8 @3 p! D# D$ Z7 ]
return; 1 C- l" [9 T" L6 o4 B, I } , t9 e" D" c- o. Q5 B. p9 l; l9 h8 h5 { \, }& M
/**************************传递数据给extend**************************************/( M, ~9 P: f6 e1 e8 x8 n: q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # u) t/ z4 M3 s; h& f8 k 9 i% e/ \+ J8 h3 n
valueStr = SysAllocString((WCHAR *) L"1232"); & J3 E" ^1 G6 ? VariantInit(&pokeVariant[0]); 9 }5 N# a# q& {' m
pokeVariant[0].vt = VT_BSTR; 7 O7 k7 h4 R/ j2 D0 o pokeVariant[0].bstrVal = valueStr;* Y4 b" Y, w H8 k s% Z6 _
2 n" a' }# _3 P& s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# E+ t1 Z/ Q6 x3 n+ V
VariantInit(&pokeVariant[1]); % v( w8 U) b* c& ]/ ]
pokeVariant[1].vt = VT_BSTR; % C5 T: I3 W% }8 k3 z \ pokeVariant[1].bstrVal = itemStr; ' Z% v) L# D* O/ z) c; i$ O) y W$ T2 t2 e( f
topicStr = SysAllocString((WCHAR *) L"system");5 g& ]/ k' T% p8 i! B
VariantInit(&pokeVariant[2]); 6 l2 g) \( d& ?' D) T9 ]8 K3 P/ N pokeVariant[2].vt = VT_BSTR; 2 D1 {% P/ z5 H5 r# Q pokeVariant[2].bstrVal = topicStr; $ _% H$ C; \: x! R5 r) C! P0 t. f8 C$ o2 A% w8 R! M$ k( t" D
// Set the DISPPARAMS structure that holds the variant. 8 S, V( F7 V1 l4 a 1 P4 e% f% U# f& d# p' u3 k1 n! R dp.rgvarg = pokeVariant;& q7 h. } G% Z C: n
dp.cArgs = 3; , d& y# r- y( T- i, R4 e2 e E dp.rgdispidNamedArgs = NULL;' v, m; p% Z, l/ _% t1 H0 B( ^
dp.cNamedArgs = 0; 3 F$ ]9 l/ z7 \2 m! E0 X ' Y% X2 {" P$ r: Y" K// Call IDispatch::Invoke()7 s+ ?2 h' g# S$ V
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hr = m_pDisp->Invoke( / {" [3 i q) ~' E8 C$ u. S; W8 {0 f, ~ pokeID,# ]) ?) I' ~- l: E: w
IID_NULL,) c6 A; f; N; r$ I. b \
LOCALE_SYSTEM_DEFAULT, & F. n- G) g) N* z) X DISPATCH_METHOD, ' i, n( e6 k: p" L/ b &dp, 3 r l a% `2 K4 _/ m+ K NULL,. l+ ~# A5 R, M7 Q) v* U# C* u
&ei, 5 |3 x, x& _4 f, P1 z; l. x# k &uiErr);) }4 Q! A; }6 Q3 b
/ ?4 Q; c2 ]3 ] SysFreeString(topicStr); : ]9 q. x \, W! f5 ]6 X' G SysFreeString(itemStr);! R. T8 G' O) c: J
SysFreeString(valueStr); * _" ^% z1 g. C+ X2 N/ P, d, h5 d
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??? 0 p% \2 J7 Z- n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????% Q- i; W, b6 `. D6 j' U
4 b2 j# U/ b0 o( @" x4 q ) R; `% R; w; a" E6 d2 G- h2.这是request的程序 $ r* Q! A4 Q4 Z: z% a7 T' _// Request a value from Extend 2 k% L; p! _+ W1 z; r# k# ~//2 V# E: c3 c* _5 V
// Initialize the variant that will hold the BSTR. Set the variant's! ?4 Z; a, Q' L) E& N) ~
// type flag to indicate the fact that this variant holds a BSTR. Place the / ^5 Q* O; {3 E% L// BSTR into the variant structure. . m3 x( d& K" v+ H( N: [/ j C3 S4 M% n
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 \" n+ O3 V! c ! K& U. f2 J- U, O9 A. c g- g6 w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / x+ `0 |( P) z1 v VariantInit(&requestVariant[0]); 2 }! H; T- R; u+ o+ J! \
requestVariant[0].vt = VT_BSTR;3 m' E! ^. Q/ i" N! u6 `: E9 F
requestVariant[0].bstrVal = itemStr; ! p6 S4 {- U/ }4 r! q4 v1 J2 M5 q, b5 i# n1 C. m
topicStr = SysAllocString((WCHAR *) L"system"); 0 G. L5 q+ f+ {+ L VariantInit(&requestVariant[1]); ( ^" }; j( N$ ? @0 M/ B
requestVariant[1].vt = VT_BSTR; 9 y+ Y/ M( w1 Z' O7 f requestVariant[1].bstrVal = topicStr;' t3 l2 e3 o- T3 @- |* l
" l& O' M9 ~6 z// Set the DISPPARAMS structure that holds the variant.2 V. I' j+ R- M1 q7 `" o# H
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dp2.rgvarg = requestVariant; : \ ]& a' ^+ f4 i! U ?9 Y- ]2 s dp2.cArgs = 2;+ q9 H, i" N$ B" @- T
dp2.rgdispidNamedArgs = NULL; b$ d% r, f3 D+ r. |5 @ dp2.cNamedArgs = 0;( P5 n5 O' I4 j6 S ^4 s
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var.vt = VT_EMPTY; # C2 ]9 |' \# q6 y! u3 V" X7 T; i o3 U4 u: E
// Call IDispatch::Invoke() * j; w* x9 ]) U * p2 j( b9 Z% r0 ^1 D hr = m_pDisp->Invoke( ; ^& l: I# R3 D: }$ G) D6 [) S requestID,0 w8 S' g( q5 [5 Y+ V. l
IID_NULL,. x2 v: t! W6 d; K" B
LOCALE_SYSTEM_DEFAULT, - V0 I: Z2 Q2 U4 n E8 L DISPATCH_METHOD,7 ^3 [4 K0 S) i2 H6 {8 c# j }
&dp2,+ u7 u1 B7 A; ?
&var,) ]9 g8 ~$ c9 E ] g4 W) h
&ei,/ ?" _2 Z k R# w$ V6 a' j
&uiErr); 4 i z7 @; W: x % Y: [8 d0 y# `7 T SysFreeString(topicStr); 7 ~' Z' Y% {/ w$ {/ Z' v( K SysFreeString(itemStr);/ w& w+ [) O% R/ e
请问该程序是获得extend里面的哪个值? ' l F: K& E. H* }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????