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 z+ E+ Y8 B+ Z1 g
Name = (WCHAR *) L"Poke"; |5 |+ Q; U) u! H + l2 V, c. T1 o+ y% N hr = m_pDisp->GetIDsOfNames ( & [2 j* h6 D/ l/ H6 J8 Q IID_NULL, // reserved 5 a5 L. ?/ Q% E h &Name, // Array of names to get IDs for1 N2 B2 o) s) V5 T6 N
1, // # of names in the array 4 n3 \. W( s1 r; g/ V( E/ V LOCALE_SYSTEM_DEFAULT, // System locale/ H0 B5 R% k5 S6 d, I; R
&pokeID); // Array of IDs to fill on output2 p9 W# a( K( `& d$ g9 W
$ J8 {$ T) |. X& a( ] if (hr) 5 q' C! U4 H+ @& L; P { 8 A7 a1 I( [, m7 @$ g MessageBox ("Get Poke Unsuccessful"); : m6 S( Z7 I# K& W6 M9 h return; ' ?/ L) _3 |& h: s X }3 V6 q. m- S9 @6 s2 P2 t+ W
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/**************************传递数据给extend**************************************/& c' N+ z" `2 H0 t% b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 A$ [3 i. f* T1 E0 l d+ T : B. v- K4 b) _
valueStr = SysAllocString((WCHAR *) L"1232"); 1 C9 M) \; l5 Z" t( n VariantInit(&pokeVariant[0]); $ c& Z/ d, v k& R- g/ {3 E pokeVariant[0].vt = VT_BSTR; : G5 Z' H W( |, p2 c pokeVariant[0].bstrVal = valueStr;. D9 w; w" @0 m0 q: g c( D, L
, Q& u* q5 F4 s' u topicStr = SysAllocString((WCHAR *) L"system"); & P6 a$ ` m* ?. K+ f VariantInit(&pokeVariant[2]); 3 r5 a# O. H% _4 Y$ o" S
pokeVariant[2].vt = VT_BSTR;4 |# k* \) e/ c; T8 D
pokeVariant[2].bstrVal = topicStr;) I4 V. \ ^0 W" |8 b2 I0 U* \
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// Set the DISPPARAMS structure that holds the variant. + {( A' N, l' y( P" [# S+ W; p) S( ~+ j. U- a0 J+ A
dp.rgvarg = pokeVariant; ! }, S& b' J7 Q# H dp.cArgs = 3; , Q; t, `- m0 n0 g3 F* E0 X! m dp.rgdispidNamedArgs = NULL; . f( D7 l4 j' H8 h! S! g4 W dp.cNamedArgs = 0;6 Q( c# }+ |# Y; E& \0 H. G: d4 @
# Z2 I6 v3 ~9 O9 y// Call IDispatch::Invoke()& @6 e5 T8 Q( N) H" p7 @' A
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hr = m_pDisp->Invoke( 5 ?% X8 l1 U+ W9 R& o8 M pokeID, - o# t. ~/ d; t- r6 D1 e4 \. S: O# K IID_NULL, & l+ V! D7 X7 c( Z" A LOCALE_SYSTEM_DEFAULT,. I. U( ]6 w1 R* s
DISPATCH_METHOD,' Z: k& T! Q: }0 X
&dp, 6 `+ s8 a7 K3 w NULL,9 S8 A2 h6 G0 S
&ei, . D9 K' j5 M9 \: ~( ?! Q &uiErr); 0 N# X9 ~* A, z4 J S0 |! }- n4 {" t& F4 c4 z' ?
SysFreeString(topicStr); v+ _; v z: `/ D
SysFreeString(itemStr); , v* t# t0 j8 O$ S4 b$ k SysFreeString(valueStr);$ Y: L' Z! z* \+ U6 |. e7 E8 M7 H
" r' o6 k% Z# I9 i$ P4 N: s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 @. G3 Z: U( h z' c1 j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 ^ _# m5 Y6 R5 T) Q: }% j! T) m7 S
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2.这是request的程序 + s. Q. `. i3 M1 ^4 Q// Request a value from Extend * o) N! x+ s" I4 [1 H//% ^- @! H4 v7 x7 s
// Initialize the variant that will hold the BSTR. Set the variant's+ N" Z$ {: F' x$ T0 G4 b
// type flag to indicate the fact that this variant holds a BSTR. Place the6 Y! [; H' l5 f I- N6 A
// BSTR into the variant structure.3 V/ S9 v& m( T' W X; g u$ Z
) M8 Z4 q% g% `9 e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 E1 f: w4 y2 d4 w& q( `: P
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ _* e& v2 X& ]- a4 ?; \
VariantInit(&requestVariant[0]); 0 c* l9 |# t/ V# o requestVariant[0].vt = VT_BSTR;& b) \9 ^: Y6 r
requestVariant[0].bstrVal = itemStr;: q6 w# ~4 H% q5 _4 r
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topicStr = SysAllocString((WCHAR *) L"system");7 a- S! P' H' j* u7 [5 K& `
VariantInit(&requestVariant[1]); 5 C+ r) f Q$ Y* a; K4 g2 I6 a% C requestVariant[1].vt = VT_BSTR; 8 A0 S# h3 p3 U- t requestVariant[1].bstrVal = topicStr; 1 V0 r) v% s ~, C ( ^1 S% i7 M- K; C3 q# A9 ]// Set the DISPPARAMS structure that holds the variant. 4 E8 E+ Y& k: d( b R. J & b: t: X6 N5 a- [) \2 | dp2.rgvarg = requestVariant;# D( R3 \, i) V
dp2.cArgs = 2; ' p0 z! Z2 c9 y5 m( v dp2.rgdispidNamedArgs = NULL; ) q2 U6 ~' ^0 ^& @0 r) q dp2.cNamedArgs = 0; 8 P8 a' J3 L, ?/ V+ `& o2 A- r" n/ }! Z' _2 w
var.vt = VT_EMPTY; 3 b2 H9 A. b- n. p S4 \; O 5 U& ^0 i6 k2 ]$ r# Q// Call IDispatch::Invoke() 3 E! T8 L" P( J1 z$ Z" V5 _. u) O; j. o- F6 ^
hr = m_pDisp->Invoke( ( V9 P- p4 b: q9 w requestID,- b' u2 [ q( k3 Q2 v/ n+ [# J! Q! X+ q
IID_NULL,7 H0 L! u# q* N; j' R2 J2 z' A
LOCALE_SYSTEM_DEFAULT,+ z |5 |- B7 j" c
DISPATCH_METHOD,. S( E7 b, g! |% \/ D
&dp2, $ s3 Y# g5 u' t, C3 q/ [$ D- l% \* a &var,7 [4 F+ K/ M L0 a B
&ei,; w) J/ k6 h* g7 t; U- ] L
&uiErr); # u- a2 L9 I8 C% X" z8 h) D # I, f. H# ^ v2 Q/ [ SysFreeString(topicStr);+ \0 Y2 J9 W+ u, \2 d b4 h& _
SysFreeString(itemStr); - U6 f# X# ^, Q y2 g$ x请问该程序是获得extend里面的哪个值? $ e$ n& V8 y1 f# U4 P2 `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????