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:9 s. n6 _/ a, P) O
Name = (WCHAR *) L"Poke";6 [5 \- |2 W+ `1 X6 V* r
3 g' T% ~! }$ a: u9 I0 D$ K/ z9 D6 m8 f hr = m_pDisp->GetIDsOfNames (1 N* w" R) W' M; K' X1 ^& f( n/ N; G
IID_NULL, // reserved2 G' x' _7 |! C- _6 F
&Name, // Array of names to get IDs for" A7 @( L2 x, K/ [( N
1, // # of names in the array, ^- p2 `5 ~% v8 p7 m, n1 a
LOCALE_SYSTEM_DEFAULT, // System locale * j. X+ G5 [! r+ J$ d &pokeID); // Array of IDs to fill on output 9 Z: B- g' F6 N ) l, J4 ]3 _; M5 x/ I \4 n$ O if (hr); v, f% S1 A( z' N
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MessageBox ("Get Poke Unsuccessful");- W3 B" {! |3 q4 D7 r
return;) D" @& @2 w; [( {3 Q8 w5 J
} : J) Q$ _3 c7 @6 n. w% s3 f 8 C( O f) N; Y/**************************传递数据给extend**************************************// r6 B. b8 t6 [! X: E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 J, S5 f0 s$ z; ^6 s
- {, j1 y) l8 n4 f$ c6 J valueStr = SysAllocString((WCHAR *) L"1232");) Z, M. l* Q$ i+ b* h
VariantInit(&pokeVariant[0]); 5 c0 i6 l$ O5 v j. i
pokeVariant[0].vt = VT_BSTR; 1 S& G1 G& V% m+ h pokeVariant[0].bstrVal = valueStr;1 j1 ^7 U% C$ A! l
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# L9 y& \7 {: F( Q. L% F, q
VariantInit(&pokeVariant[1]); 9 {* B' ?: G1 |, z
pokeVariant[1].vt = VT_BSTR; 9 ]/ S }( b" `- l1 S6 @7 l9 S. s9 \1 U: z pokeVariant[1].bstrVal = itemStr; / C" T' N3 l3 p6 u q- d% }' E9 Z) @/ N, k# ]+ U
topicStr = SysAllocString((WCHAR *) L"system"); 8 U( h4 y4 y; f6 u- ~1 T" C/ H* m VariantInit(&pokeVariant[2]); 6 V3 J* v9 R- T5 J4 | D" Q/ A
pokeVariant[2].vt = VT_BSTR; 0 X0 g' g6 u2 i pokeVariant[2].bstrVal = topicStr; 9 {- {, n! ` A! U' x% ~1 h1 y, j0 n6 N8 z
// Set the DISPPARAMS structure that holds the variant.' Y/ A7 J# n3 R3 d
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dp.rgvarg = pokeVariant;- }" g) l. b, q1 x4 w5 T! q0 j
dp.cArgs = 3;6 d$ k( D5 O) f5 e1 X( z" q, j
dp.rgdispidNamedArgs = NULL; 8 f6 A7 q4 w: _ dp.cNamedArgs = 0;. {8 q3 J( K9 E" \7 a2 {
& C4 l U1 B* z- `2 Q% O// Call IDispatch::Invoke()8 v; J$ }* K4 y8 d
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hr = m_pDisp->Invoke($ E& G a5 G: W i0 B& _$ z
pokeID, # @; [3 o' Y* j9 @+ m. `% P( O) m IID_NULL, ( J6 h# Z- t g/ ]& `8 j LOCALE_SYSTEM_DEFAULT, O# D( q- @1 k7 M0 R! S2 b6 r DISPATCH_METHOD, ' ?! ^/ ~8 u% k, e2 W G &dp, ; r% }9 W4 Z4 M; n) G NULL,, {0 b% S6 b" q5 S$ `
&ei, 1 G/ l/ K! s* n7 N6 T# |: j# w% q7 q &uiErr); - C2 D. Q/ n y# E! F1 S, _+ w( m: l
SysFreeString(topicStr);- K" L q( ?$ ^' n) E/ Y' Y
SysFreeString(itemStr);. ?" h) M5 l7 H
SysFreeString(valueStr); . D! b" ^* n1 U$ }- q' B7 C" k4 ^* Z# y5 [' n4 v Y- S2 J8 L% W
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???, R% S: T/ j+ W/ i% {) S/ o1 i. i
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????) p8 o, H6 q2 P1 G
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2.这是request的程序# K0 B9 A4 ?' n* A! V( d+ P S
// Request a value from Extend ; S8 p, S6 Q* C/ S1 N//5 ]( v( K+ `* i' x( S# }
// Initialize the variant that will hold the BSTR. Set the variant's% Q/ a) _: `9 `# A9 A+ K4 _
// type flag to indicate the fact that this variant holds a BSTR. Place the7 _( R3 S( m) r( Z
// BSTR into the variant structure. ) L" ~' ~# k) k . X5 p0 s. \* {, l6 x, E' O requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / j, \$ C/ w& ]# ~ ( z/ Y( Z H9 F; N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : K# b% V: ~6 K, z) G, W4 b W! p VariantInit(&requestVariant[0]); 4 s \. S$ k" u x- i
requestVariant[0].vt = VT_BSTR; . ]+ D0 |# ~& u requestVariant[0].bstrVal = itemStr;5 _. K) E u& [0 J+ D
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topicStr = SysAllocString((WCHAR *) L"system"); ( z, H% B# \: m, X VariantInit(&requestVariant[1]); & n8 b( Y; J3 P1 w2 |$ B requestVariant[1].vt = VT_BSTR;* }2 \' t: p* r9 z3 A4 J( s7 x
requestVariant[1].bstrVal = topicStr;3 }, X) E) T( x6 z0 Q
9 f0 D+ E" g1 c- A$ s// Set the DISPPARAMS structure that holds the variant.0 q, k( S: c4 x' T6 N$ m. u$ }6 o
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dp2.rgvarg = requestVariant;8 g# n4 F# I2 [. \
dp2.cArgs = 2;* A$ L- V/ Q' t; x
dp2.rgdispidNamedArgs = NULL;$ R1 M) G8 o B7 A# D
dp2.cNamedArgs = 0;; H# E8 L& G( Z: Y, `/ U
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var.vt = VT_EMPTY; 3 R( I) [$ ]5 X$ t 7 B$ v; ], O0 i9 G% l( ^// Call IDispatch::Invoke()( n- J! _/ F& P0 Z3 ^4 c
1 a r' s; M8 _. Z! _, w hr = m_pDisp->Invoke(6 m1 J B5 ~% m1 }) J" k4 D
requestID, 4 z. b& f u9 X1 `4 J { IID_NULL, ) Z( m% `2 p( b; z2 g0 y- H LOCALE_SYSTEM_DEFAULT,, [, ^5 o- Z9 g. Y/ X
DISPATCH_METHOD, ! N Q5 Z, \9 q* x8 T# `$ f &dp2, 7 U. r, ^1 F- A- i5 o+ j8 w+ D &var,* s' ^" e8 I/ P. {8 L7 O5 j$ L
&ei, 9 I9 Y/ v' T5 ]2 w &uiErr); O( ?4 z( ` |, r- Z