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:% K; ^5 a+ H( [ B( k
Name = (WCHAR *) L"Poke";3 U0 d4 n( w$ Z6 }- g8 i) K
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hr = m_pDisp->GetIDsOfNames ( # A# u& f7 I/ G% L IID_NULL, // reserved 3 \6 O4 A. l& E [% A, Z3 l9 ] &Name, // Array of names to get IDs for+ L: i! R5 r) q9 [3 s3 m
1, // # of names in the array2 W, Q& |0 V: q: {. w
LOCALE_SYSTEM_DEFAULT, // System locale 7 m/ s- H6 J5 W B: V. w8 s &pokeID); // Array of IDs to fill on output . ]; n* n! ~- g7 D9 r9 G& N . X8 \1 E+ J1 M* K* L! R" C8 g
if (hr) ' N3 F- B. z, u3 v0 b+ i! |& I7 X3 S { ! h3 \* I: T4 H% E; I- A$ [ MessageBox ("Get Poke Unsuccessful");7 C1 P. o. Q. k' F% J/ u, G1 I
return; 6 A5 y @, [8 \( f! N% y5 c: j7 } }3 }% ?+ e4 z6 R7 \
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/**************************传递数据给extend**************************************/ Y1 ?2 H! W! U* h. [% x+ Q' K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 A3 E3 O% _% p! B; b0 } 9 a! C2 o5 D. m
valueStr = SysAllocString((WCHAR *) L"1232");+ E. e4 L0 V1 B2 n* Q' y" i U/ G
VariantInit(&pokeVariant[0]); / g: w6 n2 G5 d3 o- m6 ^
pokeVariant[0].vt = VT_BSTR;! ]- u, ~+ M1 \8 g" _% J7 X" G
pokeVariant[0].bstrVal = valueStr;. V+ C: F& h9 O# d M/ X, N
Z1 ^" L. e* b$ C- V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 |; k$ K; r5 U$ q5 ]
VariantInit(&pokeVariant[1]); 0 T( I2 g7 F- q" w
pokeVariant[1].vt = VT_BSTR; # W7 D" k6 `4 o1 p4 J* K pokeVariant[1].bstrVal = itemStr;( M' o" F8 @" F/ ~
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topicStr = SysAllocString((WCHAR *) L"system");# W' ^* ~6 X; J6 D: D1 I) y! }
VariantInit(&pokeVariant[2]); ) g( ^0 l6 \! U# p# S pokeVariant[2].vt = VT_BSTR;/ q+ }4 M7 g7 _ I o
pokeVariant[2].bstrVal = topicStr; 0 M. q5 `6 b0 D0 b* W2 A: v+ J3 e, x/ U; c3 X- F, i
// Set the DISPPARAMS structure that holds the variant. 0 U- @/ | A/ h U7 T ! m9 L3 p x, g ?5 c dp.rgvarg = pokeVariant; 7 E: H$ M! R9 I dp.cArgs = 3; ; T1 B0 V+ U( a9 J dp.rgdispidNamedArgs = NULL;- \' f8 e+ U$ `0 B) D0 Y8 P L
dp.cNamedArgs = 0;0 j4 w% T( b5 B/ x( G( a
& u0 r6 x8 c; m# S// Call IDispatch::Invoke()) S( g! h y( C. R
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hr = m_pDisp->Invoke(! |- i! b' k/ J( B# G' d
pokeID,0 d4 P! [( D3 e# L$ X( O0 h) O6 Y* h
IID_NULL,! W9 N( p7 \; P# n
LOCALE_SYSTEM_DEFAULT,7 H) l! M+ y5 C
DISPATCH_METHOD, % u Y! w B- s/ D; i+ V- ?& X &dp, % K9 j) }% E& S: I8 O2 G0 `" U- _. r& n NULL, $ @! y+ _) K6 X$ F8 | &ei,4 ~3 a4 p4 @6 \4 Z7 \
&uiErr); $ o- K }/ ?- `+ M8 S. i, [6 I0 @# Y; a. |4 V) j
SysFreeString(topicStr);: Z( T6 |) m9 T/ e. r8 ^7 P' g& ]
SysFreeString(itemStr);: V% P) ^5 b, v+ q" n" f# `
SysFreeString(valueStr);1 D: w' I( B' C% y
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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 h {# M' u; E# L. Q! 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???? 7 A& z V: E* d' y' R* j/ d% g w4 }7 q$ K- S
4 S- H2 a0 F% N* ]1 s2.这是request的程序 v6 X K9 S/ O// Request a value from Extend 0 c. d0 r) q6 H; S+ r// 3 c" f$ H9 U+ }# D6 a: b// Initialize the variant that will hold the BSTR. Set the variant's + p7 d1 O% p4 m// type flag to indicate the fact that this variant holds a BSTR. Place the 1 y, E5 i3 v3 ?7 ], Q7 _// BSTR into the variant structure. ! E( `+ ~- T. {5 } 9 B0 |* B. `- m: p6 L" ]" \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 p; X( N/ F L; G * k2 U$ x5 ]9 m$ W2 ^0 s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# ^. ]" a' m4 ]9 f
VariantInit(&requestVariant[0]); 7 q; M3 z& Y; F: O- `) E
requestVariant[0].vt = VT_BSTR; $ M l) M3 H4 I requestVariant[0].bstrVal = itemStr;+ x$ d# W! {# @ f, W
) F5 x' O0 v& L) v$ {' w3 \) s" | topicStr = SysAllocString((WCHAR *) L"system");% o& \% p8 t5 U; F1 @$ Y/ n
VariantInit(&requestVariant[1]); " H8 U2 { m/ Q% T( N7 m/ o
requestVariant[1].vt = VT_BSTR;1 A* j0 l0 E' ]+ \3 t* b
requestVariant[1].bstrVal = topicStr; 2 L" ?1 a1 p; Q+ g ^$ G9 t ( p7 k3 ], q, V3 S* q// Set the DISPPARAMS structure that holds the variant.! F5 Y% [5 b7 x
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dp2.rgvarg = requestVariant; 8 x" ~, F' j, e dp2.cArgs = 2;! X8 {/ Y( f1 X% t( I0 ?
dp2.rgdispidNamedArgs = NULL;$ M' a1 D- ?8 U- R; s4 H. l) n
dp2.cNamedArgs = 0; . _( p: d5 l5 q5 x) F: n3 x$ J3 k 0 ]! p7 T" }5 `; ^/ R var.vt = VT_EMPTY; ; Q# N2 c H. o2 _' q / }& O/ M6 ]7 S* \// Call IDispatch::Invoke()% V. ?5 h. J- b5 R# Q7 `! D
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hr = m_pDisp->Invoke($ p1 F. ~# y, k1 S+ A* g7 c* R: }
requestID, 5 W, D( {& ?- ]# {; n$ z& {7 J7 x IID_NULL,. B1 R6 E, d Z* H( q
LOCALE_SYSTEM_DEFAULT,& [4 X" k1 |3 U9 @. W
DISPATCH_METHOD, ( h6 F5 R4 K* l% B. F &dp2, 0 S3 V l& V# F9 v7 V& h &var,) Q0 {* u# `; ^9 i# }- t% D
&ei,4 ]% q5 Q! \7 a. N) G8 U" j% o& i
&uiErr); ! M9 i6 U8 p* J8 M) v0 w/ Z: H7 |7 t ; C$ S8 B4 X# l9 y! { SysFreeString(topicStr);0 c9 K$ W3 N' ^: G4 f
SysFreeString(itemStr); , V6 q/ M! w: {1 _9 ~3 }请问该程序是获得extend里面的哪个值?: X# e( q1 T+ U" _$ l4 }/ S5 k
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????