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: $ o4 @' h% P9 x9 h5 ~Name = (WCHAR *) L"Poke"; 8 E: }0 w; t- o) N5 ^* E * A( @; d+ ^9 f5 |+ L hr = m_pDisp->GetIDsOfNames ( 5 T: Z% U8 T2 A8 S3 t; n) v& V: {, Z; x8 _ IID_NULL, // reserved 4 @5 _8 Z+ L' P% M$ O: o0 Q9 ` &Name, // Array of names to get IDs for " F* S) |6 w& r2 m2 D 1, // # of names in the array : b. B3 U$ Q8 J- g6 d LOCALE_SYSTEM_DEFAULT, // System locale5 `* u5 t5 c2 l6 D1 {0 p' m
&pokeID); // Array of IDs to fill on output7 N6 \7 G5 |" e8 r( f: U1 X% Y
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if (hr)$ C" b# a* f8 O4 D
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MessageBox ("Get Poke Unsuccessful"); - z; w4 d% m6 X5 c" v return; + f) W- v5 x! @ } - \2 y. g% q7 M! h D. t9 h6 P( y6 w5 i" a5 Q/ F
/**************************传递数据给extend**************************************/ ' N/ |6 Z) d6 P2 Q, N, J. N7 I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. g6 Y2 F- I- K7 A3 }1 w9 O
: o' ?+ K( y9 [: K; u valueStr = SysAllocString((WCHAR *) L"1232"); 2 X* w% S# P6 P5 P y VariantInit(&pokeVariant[0]); $ U: X: V$ Q. f0 T* G$ W pokeVariant[0].vt = VT_BSTR;0 f. w9 y9 Y5 t9 Q2 W
pokeVariant[0].bstrVal = valueStr;0 c, j' x1 G \ Y( C6 @9 ^+ c z
: m, d& s; w9 h! U7 w, I3 F% c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 C8 L2 x4 P; V* t- B# S VariantInit(&pokeVariant[1]); / ]/ U" G: Q1 c' m9 {. ~% ` pokeVariant[1].vt = VT_BSTR; , _& R) G+ B' K9 I pokeVariant[1].bstrVal = itemStr; 8 |6 ~) y1 z7 B1 n$ ~$ i ; [& j! f0 h) }- X4 A topicStr = SysAllocString((WCHAR *) L"system");) t$ p1 I& J# T3 J& x
VariantInit(&pokeVariant[2]); 7 P) \. m/ N* D2 q
pokeVariant[2].vt = VT_BSTR;' }: {9 l" n' [0 n4 h3 z
pokeVariant[2].bstrVal = topicStr; % c) L/ \0 K) C3 j* R/ l2 E0 @; v* s, w W
// Set the DISPPARAMS structure that holds the variant. 8 b" u2 C4 O, _5 I; Z " v: o0 B! w: c/ C5 w8 u& E5 Y dp.rgvarg = pokeVariant; - v1 s8 D1 p$ U dp.cArgs = 3; 7 e; w, v; D) z: F: O. @, @ dp.rgdispidNamedArgs = NULL;% T |2 j! U5 t
dp.cNamedArgs = 0;; `3 `8 s8 W$ p; D2 h5 Z8 _
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// Call IDispatch::Invoke() 5 U6 l& s- h1 o # r0 q+ o7 A) c% W, i% X: X, J) p hr = m_pDisp->Invoke(1 E+ ?3 G4 M: G) F3 \
pokeID, % K( d0 R$ Q8 \2 M$ C IID_NULL,1 q0 E" g: o4 G( G! h
LOCALE_SYSTEM_DEFAULT, * b% i& M: {. i* b DISPATCH_METHOD,9 ]/ @3 j5 A& r9 ~" E
&dp,' P1 r* o% F$ m. I
NULL,1 }6 x5 l( ^9 y5 F, f% w: E1 y
&ei,9 E4 l1 o& Y# ]( [
&uiErr);) r9 P5 P+ A# p7 @/ E8 k2 ^
( Y4 U, v& m5 ~3 | SysFreeString(topicStr); 5 h! B. h& M, t. o$ \ SysFreeString(itemStr); F. w a' @! X0 Z1 u* C
SysFreeString(valueStr); ) D. F4 o. M$ ]4 b3 A $ k5 s( K, [6 ^; i3 g- G, 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??? 7 N5 [" f6 s$ W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????& O" x1 ^* K* @( n8 w( z
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2.这是request的程序 % Y# h4 I, @3 T3 ]// Request a value from Extend ) Z0 S! }0 y2 h) T5 U/// j1 ?( b: ^* q% u b5 q7 J8 r
// Initialize the variant that will hold the BSTR. Set the variant's * g9 [- [& U/ y! @- b) K// type flag to indicate the fact that this variant holds a BSTR. Place the 3 B& W/ d5 ?/ T// BSTR into the variant structure.0 h( u+ e3 J8 u+ }) c: K
# t& a" e1 v0 P! ^' R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 E+ e# E% P" r9 H' C7 |: p
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & a f) {$ G! k7 ]3 n( r VariantInit(&requestVariant[0]); + C* T! Z% A6 F/ _7 e7 W requestVariant[0].vt = VT_BSTR; ) E9 v5 j: V8 W6 @1 r requestVariant[0].bstrVal = itemStr; 3 j/ O6 |" V& x( F 5 b( t6 H; U+ _; n3 s0 H1 F: F3 h topicStr = SysAllocString((WCHAR *) L"system");7 f- e+ |; \, D; U
VariantInit(&requestVariant[1]); : @/ c" K# v+ R3 F) j
requestVariant[1].vt = VT_BSTR;: P" p- s* C+ q7 ]" ?
requestVariant[1].bstrVal = topicStr; % T0 e, Z9 G/ ~0 Q4 k# O% I+ Q d# W3 Q& c9 c5 I
// Set the DISPPARAMS structure that holds the variant.8 I4 o& N/ g3 B g
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dp2.rgvarg = requestVariant; 8 ^6 C) Z% _' X6 ~ L( Y9 k dp2.cArgs = 2;& o- J0 E: P; L( L5 \
dp2.rgdispidNamedArgs = NULL;; K5 J: `! W, ?7 J" S! w- ?$ {# S
dp2.cNamedArgs = 0; 5 \; `7 m% K2 }$ a( V" }- ?. f$ H
var.vt = VT_EMPTY; ! t) T" S) ?) u3 \" Q7 U/ D! w. v3 P. Y! `$ O( J# z1 K% E8 w
// Call IDispatch::Invoke()/ d3 N* w _( h2 _1 K
" P+ k- t' S" l: S4 T. V hr = m_pDisp->Invoke(# E1 P V# b) ^1 i K' W- O6 V- e
requestID,6 r0 t+ O \& R- D( \$ [
IID_NULL,1 _) F) |7 k7 F$ C5 p6 O) {# I8 Y5 S
LOCALE_SYSTEM_DEFAULT,3 E Z( X9 K+ C* w
DISPATCH_METHOD,; |9 Y1 m- t, ~! |; M7 q Y$ E8 f
&dp2,& U4 J6 P6 A$ j- B% J
&var,. L5 u& L. h0 O6 f
&ei, 8 U$ v! t/ Q- s" p0 t9 b! G, l &uiErr);: I' ^# k4 |2 S( X( u4 {