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: + q) i9 [$ P' j$ jName = (WCHAR *) L"Poke";2 n5 s4 m+ o7 h3 R0 Z( N, e6 L
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hr = m_pDisp->GetIDsOfNames (, A& c; _( Q* j: m2 S4 m+ ^" x8 Q2 }
IID_NULL, // reserved5 K! q& `; o, p0 m" W# S. C6 x7 f
&Name, // Array of names to get IDs for- m. Q# A% n H- x
1, // # of names in the array $ \: J( V, z- i0 s LOCALE_SYSTEM_DEFAULT, // System locale - j: m8 K' E6 d4 s &pokeID); // Array of IDs to fill on output) ~( s. [' b+ q+ j( L7 ^/ l/ B/ a+ M
' O. o8 B; M: \4 } if (hr) . u( v4 x8 R8 i# V7 r8 j9 r {9 N" e% ?7 I1 M8 K9 l- N6 r4 F" I
MessageBox ("Get Poke Unsuccessful");, q; e/ `+ h- ?% q+ A9 G6 z
return; ; \! v. V. y q: e8 P4 I' T$ E2 { } * A- i5 ?: P! g+ d8 ]1 u7 p( V9 X* l) w [$ e+ I
/**************************传递数据给extend**************************************/- t' w% ]! I& `/ ^7 q% T* c. i9 r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + b( g! t, [) V% D& J, R T& z! W) D! ~) q8 m
valueStr = SysAllocString((WCHAR *) L"1232");5 c8 C4 r# o# L" e! N
VariantInit(&pokeVariant[0]); " V) S/ e7 C) F5 G
pokeVariant[0].vt = VT_BSTR;! k6 D7 h# D9 w) u% ]
pokeVariant[0].bstrVal = valueStr;" K6 V6 T1 s4 U8 ^/ l [( Z; f
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' d& R/ U( `" f5 O7 i! N) Q& Y VariantInit(&pokeVariant[1]); ' |8 T, s$ {# g2 u B
pokeVariant[1].vt = VT_BSTR; K; }3 _4 R0 j' z5 @2 t
pokeVariant[1].bstrVal = itemStr; , F+ T9 W/ h7 q) L2 R L& o7 }* N# ?0 y) n) M
topicStr = SysAllocString((WCHAR *) L"system"); / b" t3 X: x8 F1 |! m, ^ VariantInit(&pokeVariant[2]); 5 A" L4 m" ~* X5 z
pokeVariant[2].vt = VT_BSTR; ) J5 N. P# n( J8 i pokeVariant[2].bstrVal = topicStr; 2 v$ }% X7 b8 a4 D5 W' O5 G! J7 {3 B0 H
// Set the DISPPARAMS structure that holds the variant.- F7 u5 n" |9 z( F0 L% i
& \- p7 r. h) Y [1 I dp.rgvarg = pokeVariant; 9 S. @( T/ _- e# v- g! j* k5 v dp.cArgs = 3;! _9 |2 V `- u
dp.rgdispidNamedArgs = NULL; $ N% C# j% v' L1 p+ V" \# Y. F dp.cNamedArgs = 0; + U. H: ~ R+ \+ V; Y + b7 y1 o8 `3 l1 W: e# \+ O// Call IDispatch::Invoke() , g% v( `, }, o# n' g L# A, q4 j3 y- b. z5 [( n" {9 @
hr = m_pDisp->Invoke( 4 x9 v. E% W; C6 m3 U3 C pokeID,/ X( p; k( l7 g/ o
IID_NULL, 5 U3 d, ~$ l! c" v2 ?+ { v% ]- ]( { LOCALE_SYSTEM_DEFAULT,6 D7 ~7 a% x) m# _
DISPATCH_METHOD, 2 v, {/ C3 ^0 h" |; M4 e &dp, ( Z4 i2 V' s9 x9 j2 w NULL, ! i5 F' ]7 U8 i5 v &ei, - O8 Y$ X3 r0 R &uiErr); 0 v o/ v; \7 w* W/ @1 f7 q8 \0 G , P( J* t7 R1 V' s6 E9 C SysFreeString(topicStr);# g/ Z+ b9 R8 I3 c5 n
SysFreeString(itemStr);: d( A1 f$ l: B% P1 X# ^/ n
SysFreeString(valueStr); * [/ U2 R0 s5 ]* r' Y2 B 1 E, @4 W% ~5 ]9 g! D& N9 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??? ( z. L3 Q# O3 b, |% V% @& v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???? : W* }( w% b7 X2 G M/ k9 @- j9 l3 ?) l# r* q3 D9 O ` R4 C& L$ A' j7 Q! Q+ T
2.这是request的程序; E! h( |9 Z( `% q4 g7 s0 G" c& J
// Request a value from Extend 9 k* o* C( f: _$ g$ U. l) ~+ e5 N// ! t. a, C& v( M& m// Initialize the variant that will hold the BSTR. Set the variant's+ T% A# P8 `; `- [- k6 |
// type flag to indicate the fact that this variant holds a BSTR. Place the H- \2 G1 @& ]1 K- n9 Q4 h4 [% b
// BSTR into the variant structure.2 r3 |# }$ |* g; W
4 j) y, E. n1 A* r$ |* l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 @) [9 x( }7 B/ s : }3 g" L! G9 w v3 \! h3 J0 o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 b: z. f& g' n) J. _: k* h
VariantInit(&requestVariant[0]); ) F4 A' W; M) R7 u1 o3 A/ K+ i
requestVariant[0].vt = VT_BSTR; # ^6 s0 B$ ]; v7 n requestVariant[0].bstrVal = itemStr;: ^7 J7 H8 @/ T+ Z# l
& [5 ~1 w2 Z/ v topicStr = SysAllocString((WCHAR *) L"system");" m ], h n7 I$ S& ]. Q
VariantInit(&requestVariant[1]); 2 c! h9 x; R8 C3 b9 ]) C: \
requestVariant[1].vt = VT_BSTR;7 l' S6 \3 x) G4 T" L- y3 U
requestVariant[1].bstrVal = topicStr;+ A. l, `" s6 V# K. Z$ O
4 d+ H9 B8 [$ p! h// Set the DISPPARAMS structure that holds the variant.1 ]+ Y; s: f0 } }0 Y( r" R
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dp2.rgvarg = requestVariant; 8 y/ u2 C$ B9 I U* z2 i dp2.cArgs = 2;" z% j/ i- s o; M! V
dp2.rgdispidNamedArgs = NULL; 0 {; U+ p9 m; u% u7 x dp2.cNamedArgs = 0;, U) V2 R3 p1 F" Z8 @* h3 l
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var.vt = VT_EMPTY;4 {4 z! X2 Y$ }* B& M
" b ^& V/ S& M8 f" L" g4 V// Call IDispatch::Invoke()5 }: Y! w$ `. L* L4 T
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hr = m_pDisp->Invoke( / M, ~5 t% r! d9 t/ d, O5 I1 F8 Q requestID,; `0 c; c, a! z" p+ y! G; U8 m
IID_NULL, 3 x: h8 W% u0 \ LOCALE_SYSTEM_DEFAULT,' Y0 }7 n ^& J
DISPATCH_METHOD, , {2 l [6 @& S9 ?1 H &dp2, . B6 ^7 D) a, B# I &var,5 \) J w- d1 {! c1 @7 A" `/ E; i% O
&ei, 2 v9 p( S: M0 H v. T1 o &uiErr); 5 g3 B1 b5 S( j, k; ~: f0 k4 I7 ^: I
SysFreeString(topicStr); 4 |' S, ?& O% U/ ~5 I SysFreeString(itemStr);! B, y' h$ j% s7 @. f2 Z
请问该程序是获得extend里面的哪个值?3 T, V+ a6 o% J7 m/ [6 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????