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: . r. s0 v& Y, V0 Z& rName = (WCHAR *) L"Poke"; ' K$ k; R, V" c. S h9 D $ E) P# C0 K( b( D* }* l
hr = m_pDisp->GetIDsOfNames (7 s" Y! P3 N+ o# ?, b
IID_NULL, // reserved+ i9 Z4 L% H/ n+ f# C6 K4 k& E
&Name, // Array of names to get IDs for : P: m, M) V) A4 Z7 ^8 A# s 1, // # of names in the array 2 t' t7 u& s% D8 E. J& a( `5 ?4 G LOCALE_SYSTEM_DEFAULT, // System locale 6 ?- g$ O9 E& S. X &pokeID); // Array of IDs to fill on output 4 q# m! p! O+ m" F. A6 I 7 b4 v; ^# F% G& s* j4 i$ w8 q
if (hr)5 ^' ]2 d3 N( U8 d$ r
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MessageBox ("Get Poke Unsuccessful"); 9 ]- j' x% b; q; t& r$ e return;! I6 L6 S5 v t
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/**************************传递数据给extend**************************************/' ~' B6 [+ a: f" L+ Y0 r# p- a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 b, h0 g& ?8 b) } & t, Y+ [7 L& `3 L | [
valueStr = SysAllocString((WCHAR *) L"1232"); 3 b* v3 }7 R2 _& M9 _ VariantInit(&pokeVariant[0]); / u& D1 o ]$ |2 N8 V/ ]* l pokeVariant[0].vt = VT_BSTR; ( W, }5 Q! U* `1 ^- ]+ H pokeVariant[0].bstrVal = valueStr;- g! |; Y8 S0 ~* l! A
( l9 X; ]7 p% g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 c9 @* L% U6 ]- S+ u, O$ [7 j) u
VariantInit(&pokeVariant[1]); 0 x( K4 j" m8 g! }
pokeVariant[1].vt = VT_BSTR;2 S$ b; }4 N# S: }# h7 P1 P
pokeVariant[1].bstrVal = itemStr;- ^6 A2 w1 _8 a6 n
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topicStr = SysAllocString((WCHAR *) L"system");8 N9 P8 Q1 A- x- Y1 m2 y9 W' ^
VariantInit(&pokeVariant[2]); " p7 _2 b% m# z pokeVariant[2].vt = VT_BSTR; - R+ m4 e' f4 j3 _ _% @ pokeVariant[2].bstrVal = topicStr; , ?4 x" n# A, I6 Z, c6 U9 g) Q9 l- |( x2 H7 M
// Set the DISPPARAMS structure that holds the variant. , B& P' H h# ?! A2 x" z; F4 f; z! t9 Z8 q8 K6 b
dp.rgvarg = pokeVariant; / D% @& B- P$ \* i3 ] r, w dp.cArgs = 3; & l! i2 _' K; K, F" q5 x* f* C$ @ dp.rgdispidNamedArgs = NULL;) [/ M. V+ u. D0 ^2 ~7 U) H
dp.cNamedArgs = 0;5 x h' _2 M/ n1 ~8 b
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// Call IDispatch::Invoke()* _/ @# m2 c/ x7 N) @1 \! r$ \. S
! g6 J5 S4 @/ C. O# M! U3 ~ hr = m_pDisp->Invoke( 1 w- y, A% U; K2 W9 {- j. u4 m% b" h pokeID, W# J/ Y# B% r5 W% _ IID_NULL,0 ^: V8 j, _" [, K0 y. Z
LOCALE_SYSTEM_DEFAULT,3 @4 X4 _- r" |
DISPATCH_METHOD,# h4 d3 x" W3 k" ]* _; n7 L
&dp, 7 h3 _3 a$ m7 y* D. J7 E: q6 I NULL,7 n( z+ F+ ?4 [ E
&ei, . H/ l- L) t4 v+ K* z% ]/ ? &uiErr); R# z, k8 _. z) n
8 y9 L/ t& v! H" w9 D& P SysFreeString(topicStr); ! m C) \ ]- _5 Z9 A3 L SysFreeString(itemStr); 7 _) t5 }: N A' N7 f* R SysFreeString(valueStr);' Q9 N3 p* o% V) w
6 y1 y# D" a+ W) U% 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 H: \: S8 \1 q; t6 F" z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???? ( n3 O6 l3 W" H/ Y7 r 0 ]$ V8 o: H9 p/ F1 `4 t% V/ ~; q% h% V8 Z5 V, g
2.这是request的程序0 ~- }3 n, L# V$ A' k' X. D
// Request a value from Extend; l/ `% d" y6 b+ C" B- p! e
//2 |5 V. c& N; n# k- q5 w( l
// Initialize the variant that will hold the BSTR. Set the variant's: Z3 Y- T' W. m- |
// type flag to indicate the fact that this variant holds a BSTR. Place the" O9 ^5 E, b9 H! c
// BSTR into the variant structure.2 I" d% ~& [( O) E
/ G3 U% X; h8 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ P$ J7 y+ w( y9 [' Z3 `& F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ c' @# n, F. d! b+ x
VariantInit(&requestVariant[0]); . J$ c4 r2 H; C+ t requestVariant[0].vt = VT_BSTR;. K* [' D V u) E, M6 ?
requestVariant[0].bstrVal = itemStr;* ~. d/ `8 k6 q+ m
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topicStr = SysAllocString((WCHAR *) L"system"); ' z- h( A( n8 O8 _) Y; } VariantInit(&requestVariant[1]); * B2 U7 T8 t$ F+ u2 S8 h' Y
requestVariant[1].vt = VT_BSTR;: g) I- }) _+ s
requestVariant[1].bstrVal = topicStr; ' |. k) X! Q* f+ ^, V0 `# ~5 e9 i7 d( w3 ^6 n6 ~* k6 L
// Set the DISPPARAMS structure that holds the variant. " C; t$ v5 C% U, D 0 r5 W' ?5 L; @7 y: [ dp2.rgvarg = requestVariant;0 l" _# m9 Z) A/ i$ I1 r
dp2.cArgs = 2; 8 A5 O5 A- Z! E9 O7 }6 G dp2.rgdispidNamedArgs = NULL; / Y8 d$ I% I9 f; L/ D dp2.cNamedArgs = 0; ; l0 g1 q8 i2 b0 r) i* s% k# N0 o4 p
var.vt = VT_EMPTY;9 d# ~4 Q3 v1 ^# @/ l: H
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// Call IDispatch::Invoke() v6 `) i7 B+ A0 X% Y3 |1 q0 T' P3 s. o, H2 }. I7 o( n& }% L' h) y0 a
hr = m_pDisp->Invoke( 7 Z l g: Q$ ~/ ^ f) @ requestID,& c. \. {9 m) }( y7 N
IID_NULL, 4 k5 r4 @- d( ]! Z$ w/ e LOCALE_SYSTEM_DEFAULT, . X1 {+ t4 X' d$ [9 j- P DISPATCH_METHOD, 3 |! O0 j( a! x6 |' w &dp2,. r. u6 ~5 [( M" t
&var, + ]% }) {" C1 Z9 F7 ` n5 M &ei,% {) p u& c% b8 O3 V: K
&uiErr); f$ \& M, L6 j" U! G
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SysFreeString(topicStr); 7 k1 B, ?# |2 s$ H) Z* Z SysFreeString(itemStr);: V3 V" t C {% F" D4 q
请问该程序是获得extend里面的哪个值?# _9 X' L" j, _; F7 m$ l# @
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????