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: - f/ {. ^ Z4 A! G2 k* rName = (WCHAR *) L"Poke"; : N3 i# f1 ]9 H+ E1 ]2 v . `" A* q/ K+ y/ N+ o$ | hr = m_pDisp->GetIDsOfNames ( . w2 P$ q' Y' f4 q7 ~) S8 W IID_NULL, // reserved2 X% v2 k5 D% U s! y
&Name, // Array of names to get IDs for , g0 U3 Q$ ~/ @; e) \ F0 }9 h3 f7 Z 1, // # of names in the array 0 t/ K9 D9 b- g& E% W LOCALE_SYSTEM_DEFAULT, // System locale 8 W4 t }5 s5 \2 m &pokeID); // Array of IDs to fill on output% p* q2 O' C. r. p) a% B1 p
+ Y. H! b' H. v1 M. e if (hr)* w7 v1 d# _1 p6 \
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MessageBox ("Get Poke Unsuccessful"); ! v. a' ^1 Y2 T6 z return; 9 o7 p% z& m; @/ H, I: B% Q } + s4 ?# @- b7 i! Z$ R 4 D V( P# w2 c% | R% \! N/**************************传递数据给extend**************************************/& H) x# z* K+ x9 L. \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( u5 j* |) s( J; M# W( H6 _ ; X' x- u* }; \6 I; d. j, ] G
valueStr = SysAllocString((WCHAR *) L"1232");' z, \1 n. M3 Y( b; v
VariantInit(&pokeVariant[0]); * X& m/ r6 Q; V( N* a pokeVariant[0].vt = VT_BSTR; - L7 h; `4 _7 X1 x2 t pokeVariant[0].bstrVal = valueStr;% d+ G' S1 b9 ^# u! E& S( `+ ^. l- }
* }( u) y8 l# u: a/ k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! J) J% Q6 {4 \5 Z* X
VariantInit(&pokeVariant[1]); s0 u' T( h: w- C) H: Y8 k. N) K pokeVariant[1].vt = VT_BSTR;$ T& G5 r5 v' I0 R$ T
pokeVariant[1].bstrVal = itemStr;! j P, b( e5 ^3 Z) e
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topicStr = SysAllocString((WCHAR *) L"system"); & ^, D9 @$ @7 e6 f/ X VariantInit(&pokeVariant[2]); . d# c5 g. W9 n4 S pokeVariant[2].vt = VT_BSTR; ( x' i% v6 o2 Z6 j+ s- w* h& n pokeVariant[2].bstrVal = topicStr;- W) Y4 I7 A, G" Y( O7 A
" U: d: ^. ~3 L# z6 H8 `) {: ]// Set the DISPPARAMS structure that holds the variant. # |) V8 w7 w7 V/ P- \8 r; S / w* c) ^4 U! b% o dp.rgvarg = pokeVariant; . p" |' c3 D+ h, ]1 f8 x dp.cArgs = 3; 2 W; H$ z1 `& N9 [6 u' i dp.rgdispidNamedArgs = NULL;6 Q) l' }4 H( l3 s: a' B2 {2 S, B
dp.cNamedArgs = 0;3 e( }" V$ r7 C1 `, v
+ f0 A7 k& x" J' ]) R! W" s2 {9 [
// Call IDispatch::Invoke()) E% p8 S, B" v
% B+ t0 s# I1 e6 e0 S! K' } hr = m_pDisp->Invoke(6 c0 w x1 `. Z+ N: I- |' \9 y0 A1 Q! t
pokeID,/ _' u9 u+ h* G
IID_NULL," Q. u7 Q9 q# h9 D% S& q6 Y
LOCALE_SYSTEM_DEFAULT, 5 E# e' b$ x |; b. o0 E; e DISPATCH_METHOD,; |2 u9 _0 O0 L% c3 D) L
&dp,2 Q4 v& {: E; u6 l. W P% }
NULL, ! A: |) c6 b# u. X &ei,$ e& |1 J- a* k, O: T
&uiErr); ( _; f6 b1 I: L6 y9 Z" @* i+ v. G7 H4 v$ g
SysFreeString(topicStr); 4 A( ]7 B: }5 |* ? SysFreeString(itemStr);7 g: m! }% H; k# ?9 z- N
SysFreeString(valueStr); , ^* n& A% y1 Z1 z7 N m# K+ Z7 W4 ~
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??? ( Y8 M, Q+ I% I5 C4 p- _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 d8 N/ w/ I* z- ~+ Q+ b 7 n) V' D& }5 F3 I% d# E + t! y& ^4 U7 H$ D. M2.这是request的程序 # w; M4 v# |2 w( l% x2 p// Request a value from Extend 9 |& `, Z5 e$ B( j, L3 }# D- S- L# p! }! T6 F//( |" B: e0 W' F3 U
// Initialize the variant that will hold the BSTR. Set the variant's / q: A. d4 H3 z// type flag to indicate the fact that this variant holds a BSTR. Place the7 f F8 {3 h7 [4 c" @# O
// BSTR into the variant structure. 3 k* ^8 F q$ z+ `9 z) y* I# G. O* O) Q: _& h. I3 S5 u
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& |& p: ~$ N& ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 A5 o6 t/ b; n+ s- ?
VariantInit(&requestVariant[0]); $ u8 t6 |% r5 s' ]1 {7 g, P }
requestVariant[0].vt = VT_BSTR; x# p+ u% r2 K requestVariant[0].bstrVal = itemStr; & R2 T7 L1 P5 u6 {1 u. ?/ _" L! \" M9 U1 @
topicStr = SysAllocString((WCHAR *) L"system"); 5 S& Y" \; n! C6 Y+ ^1 U VariantInit(&requestVariant[1]); # C3 Z" {+ e/ d ?4 i# T4 S& ]
requestVariant[1].vt = VT_BSTR;% u( t/ e5 c$ l p- ?0 \
requestVariant[1].bstrVal = topicStr;3 V3 |- T( \$ T# d3 H5 C
' x# c6 \& o9 O; X7 K- T1 G// Set the DISPPARAMS structure that holds the variant. B( q4 U+ e+ v/ W. M: [! e ! r$ [+ K/ ^* K9 C4 A dp2.rgvarg = requestVariant; $ e' F5 O; p( v% J7 a+ l1 k dp2.cArgs = 2;6 H: l/ k- C* T$ b4 \
dp2.rgdispidNamedArgs = NULL;/ ^4 Q7 r9 o- @4 }" r9 l. E6 p) t
dp2.cNamedArgs = 0;8 z; e# M* Q! |) J g2 f4 y: @ m
: |5 L* \ f9 |! n+ M- c+ f var.vt = VT_EMPTY; & q7 D3 r, y* @. W: P# Y3 E* ?* S/ o$ h* N. z
// Call IDispatch::Invoke() : e$ F( h$ j7 F# o3 H 0 m. O b# u( P5 B F' @1 V hr = m_pDisp->Invoke( " G% e) F Q/ g* ?! \* c requestID,# b% }& C7 D% H9 j3 \ D _$ Q
IID_NULL,$ T9 T5 c+ A+ i9 Y: i. N3 c
LOCALE_SYSTEM_DEFAULT,) |# m# [, m% i7 d3 P+ ^
DISPATCH_METHOD, ) Q( ~2 u! m0 k9 {$ r &dp2, . q8 v7 x% t) o! W &var, ! J+ Q/ s3 V- w2 l7 t) U! W &ei,0 U: l- f/ N+ ]! z) c% x
&uiErr);6 x( ~) E2 p# E