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:! ?! W% ^( B8 l& b( N# y
Name = (WCHAR *) L"Poke"; 4 z# @! T% ~0 Z + ?5 R: S. I) C2 W3 W0 I% v# F% P hr = m_pDisp->GetIDsOfNames ( ( C) `- f0 p: b) ^$ v6 @/ d IID_NULL, // reserved+ W' }2 V* W. x& p
&Name, // Array of names to get IDs for n6 H( M1 Y* _3 l3 ]
1, // # of names in the array1 Q0 `! f0 X: }
LOCALE_SYSTEM_DEFAULT, // System locale( P1 g3 u/ z, {% W1 s# ?: |% G
&pokeID); // Array of IDs to fill on output$ a. P0 ?, L) K1 p
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if (hr)+ g, N7 S- d. d# u
{ $ Y: a# P& x$ I$ o% Z MessageBox ("Get Poke Unsuccessful"); ! y: l/ h1 F1 ?3 X& w return; : S( I+ S \% h) P+ c. A }+ @! u4 Y: g. Q3 T! G
) c& ~8 P" I" r' _/**************************传递数据给extend**************************************/ 9 F2 Z4 F8 i x3 n; S, G2 w9 X8 B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; o8 x6 U F) x' ?
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valueStr = SysAllocString((WCHAR *) L"1232");8 p, M; m7 J0 w* H4 T: C0 N
VariantInit(&pokeVariant[0]); 9 j+ r; m! E" N+ q" o
pokeVariant[0].vt = VT_BSTR; 6 o+ ? m5 ^# e* e1 p7 t pokeVariant[0].bstrVal = valueStr; 5 W0 j' r0 P5 U; Z 6 j0 Y5 h; V' y7 K" V+ S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 ^" m6 m' E* k/ F VariantInit(&pokeVariant[1]); ) M* j3 `0 Q3 d# s
pokeVariant[1].vt = VT_BSTR; P4 `5 \( i: |' D% z$ E- z pokeVariant[1].bstrVal = itemStr; 7 P @0 `7 }: l+ ]3 h# g! e* ]( m9 n0 J7 _& I7 z0 s7 h( f+ M
topicStr = SysAllocString((WCHAR *) L"system"); 8 L' B$ ^. z) q0 N1 g2 S7 J VariantInit(&pokeVariant[2]); + \4 @; @9 w1 I2 M% F' e/ q
pokeVariant[2].vt = VT_BSTR;8 V' N$ [, s% {# X9 ~4 @ _( L
pokeVariant[2].bstrVal = topicStr; 4 f6 t7 r+ S1 h7 w" |! |* p8 ~! [, X$ l* X l( U t
// Set the DISPPARAMS structure that holds the variant.- l" L( p$ u; b% y: m
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dp.rgvarg = pokeVariant; ; o/ C8 S7 f' |3 _- c1 t; N0 a: u dp.cArgs = 3; ! Z: }. U) G! A n6 m dp.rgdispidNamedArgs = NULL; ) W& ]! x9 {8 y. X: F; _ dp.cNamedArgs = 0; ' h6 b. w4 Z, W3 K: I: x 5 Q9 f$ B2 _4 A. l, h- [# [// Call IDispatch::Invoke()0 v8 e, U: b* ]! _! \3 K% H
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hr = m_pDisp->Invoke() ~5 N) i9 K* Y6 T+ {* o- u6 [
pokeID, 1 N/ x* ` ?! n! d- } IID_NULL,- G4 L1 e9 O& u, } X
LOCALE_SYSTEM_DEFAULT, 7 |) F2 `% a( e( t( ?/ g DISPATCH_METHOD,/ z& C1 b/ T- Z+ A5 c8 [4 V
&dp,* v t o8 ]* I0 h2 G
NULL, 9 Q7 R9 t9 D; Z9 o" l; M &ei,6 E) h, L5 ?; S4 a7 u5 L2 C
&uiErr); / i1 C/ B: j3 T6 [. W 5 g' e4 u N% B0 u SysFreeString(topicStr); # h% r- v0 L9 f& R- m- x$ D1 A SysFreeString(itemStr); / ^% D. J0 G z3 T SysFreeString(valueStr); 2 W2 }3 w7 B& l& X8 i, l8 Q5 [( @6 u' R2 a5 x0 o0 _% G5 X
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 @, B6 _( Y8 V( J" e0 x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???? : Y0 }8 n6 a' _- U3 M/ h# g! H- q# i
, ~8 g7 s N1 e& o4 |& P2.这是request的程序- d6 N% f) ?0 J/ M* ~5 j
// Request a value from Extend & N) z L! C0 v% D% N4 P& m) Y% l9 p//4 X& d8 z1 N! v& g6 r% K
// Initialize the variant that will hold the BSTR. Set the variant's3 J& k7 y- Y* a
// type flag to indicate the fact that this variant holds a BSTR. Place the x( `5 |) `0 s
// BSTR into the variant structure.3 X4 S, z* m3 {1 O' U1 z% f9 q
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) [+ k0 v$ g. z3 e( K" H! e z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! i, U3 V4 C% y' U0 L
VariantInit(&requestVariant[0]); ! ~8 j: ]2 v; C( `
requestVariant[0].vt = VT_BSTR; ) t& o7 T& m: e h' o requestVariant[0].bstrVal = itemStr;5 j' F+ J8 {- d! B: U: ?/ a. L) ~
4 f, m. Q! `, Q; u5 Z7 f" x topicStr = SysAllocString((WCHAR *) L"system");6 l( r5 w9 i' V9 ]) d2 V$ h+ b: u
VariantInit(&requestVariant[1]); # s9 J7 [$ I& Z( Y& G4 w; E, K requestVariant[1].vt = VT_BSTR; - @+ D, N9 N* c( q+ Y ^) m" g requestVariant[1].bstrVal = topicStr;- \0 L$ @7 ]2 b! P
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// Set the DISPPARAMS structure that holds the variant. , t g* k$ I8 Q( f0 ^4 _7 B4 v+ ^9 z- Z, |8 K4 y
dp2.rgvarg = requestVariant; # N- a: o' q7 m% V8 r dp2.cArgs = 2;$ v; L; Y& M3 O9 a) e
dp2.rgdispidNamedArgs = NULL;* t$ o4 O9 J' x) |% o) B3 _* z; [
dp2.cNamedArgs = 0;" N% h( o9 S+ ]7 Z `& ~6 {
8 W! a& C7 N" S' y) F- F- y# a$ B var.vt = VT_EMPTY; 8 c0 h9 l. E: [/ S8 u. W7 n) L/ q * _5 k5 l4 w: l// Call IDispatch::Invoke() 5 z9 n/ L: U" S" ?) G1 K) E3 R% p/ z$ b6 S$ l5 c
hr = m_pDisp->Invoke( # G& f5 I6 x; g9 t requestID, + `2 @( q. R& w2 R+ Y/ O* { IID_NULL," s$ z0 `; I3 v2 j$ t- k$ x+ r
LOCALE_SYSTEM_DEFAULT, ! L; U( X, s' R DISPATCH_METHOD,( p9 ~& O/ r4 W" l/ }# D
&dp2,4 q( A- V' \+ \% I7 n( M
&var,8 x. ^! S6 k0 b# j% A1 m0 ]! d
&ei,: g3 w4 ?8 n% K% f/ v/ p
&uiErr); 0 e6 R4 y% b" E : ]( t/ d; ^) c/ _ SysFreeString(topicStr); + O8 H7 \5 D/ s N c2 X% g/ R SysFreeString(itemStr); 0 `: R) m3 a I/ h请问该程序是获得extend里面的哪个值?; v1 F$ O' A7 n% c) l1 G! o
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????