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:* q8 V- M. n( X# E3 `1 A
Name = (WCHAR *) L"Poke"; 1 r$ |+ g% |+ S3 z 1 A. f( x# e: P" F9 F* T: I hr = m_pDisp->GetIDsOfNames (" d1 ~0 D9 M9 s8 G5 W. }+ a6 s
IID_NULL, // reserved3 o+ h7 E) A$ H" M5 Z" U; @, c5 {+ W
&Name, // Array of names to get IDs for a$ t; G& J+ |$ N5 m' r: Q$ k+ c4 D
1, // # of names in the array$ ?* w; G P8 O/ d1 t
LOCALE_SYSTEM_DEFAULT, // System locale( v& @, ~3 v9 c. i0 ~- z
&pokeID); // Array of IDs to fill on output: ~$ M* e3 p2 T, W+ x9 o! K
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if (hr) " g5 h' Y' l G! W { 5 Y% e' e( }5 f! u3 s" { MessageBox ("Get Poke Unsuccessful"); 0 q+ d# q2 i: U: k4 w4 L return; . k( W: x. }# K+ U q2 L } ) U' |- q. Y( Z3 m, P4 {8 ]4 V! M: t$ V: j, t- P1 w
/**************************传递数据给extend**************************************/- c4 i! I4 z+ ~5 r- x: ~
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 J) u4 i4 Z/ Y/ G+ k 7 F/ W' Z7 \( i; A, x0 n: { valueStr = SysAllocString((WCHAR *) L"1232"); * R/ x" s' x f# H VariantInit(&pokeVariant[0]); 4 d8 \" l: u/ ]% ^# @* p3 D. Z6 k
pokeVariant[0].vt = VT_BSTR; 0 Z8 ~& h$ P3 e4 ?/ F) U1 I pokeVariant[0].bstrVal = valueStr; 4 }8 {$ x5 e. L4 Z& r1 @/ j* z- z2 P' x8 i
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 }# w; O/ b: D, c8 j. \
VariantInit(&pokeVariant[1]); " A2 ]* R+ N$ L% G5 N pokeVariant[1].vt = VT_BSTR;/ ^0 U8 K* f" ~4 [- n" `) \
pokeVariant[1].bstrVal = itemStr; 9 m; T3 x& ~# Q* ~: g$ O 3 d, R9 X& E. c- ]2 ~% f6 n" Q P topicStr = SysAllocString((WCHAR *) L"system"); , u' @- T5 i N4 Q& f VariantInit(&pokeVariant[2]); & l* v. i. o5 Q6 O pokeVariant[2].vt = VT_BSTR;- e: [: ?/ t. a- Z7 ?3 U2 n
pokeVariant[2].bstrVal = topicStr; - R% W" H" ^0 t+ u1 X2 U- W) k4 ?& ^, w/ U- ^' d Q3 G
// Set the DISPPARAMS structure that holds the variant.4 c i. u J$ j3 E+ G, H
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dp.rgvarg = pokeVariant; $ e2 G" S) h7 z3 `& T dp.cArgs = 3; 3 I2 a5 @% t( ~2 e6 u0 S. [ dp.rgdispidNamedArgs = NULL;+ N7 @# Q5 o6 C( X- A/ x; J
dp.cNamedArgs = 0; ' w+ M7 ]% n7 m4 D, E j) U; `7 d* F M* ~3 y- M; e
// Call IDispatch::Invoke(), N) u: K8 n, h. A0 Y9 K
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hr = m_pDisp->Invoke(- X8 \8 E9 t; z: t) u
pokeID, y( x4 F* G# u: E6 Q2 i L% J IID_NULL, ! B5 M5 V3 v3 E LOCALE_SYSTEM_DEFAULT, # {2 J# l& N0 u% i DISPATCH_METHOD,& m B- }# O5 j4 ~: A) M p2 Z
&dp,/ E! {, c4 s# k6 Q" E8 o
NULL,) W; O) ~" t) |5 A: Z) L9 a+ T
&ei, : Q6 J, g' R8 y* R &uiErr); % z* c4 q; Z# `' I; x 5 `4 h# e& ?5 G7 ]! k SysFreeString(topicStr); 6 Z3 o, q- I! p( ] SysFreeString(itemStr);! G$ w+ u7 l5 } y8 d, j! T( X7 L
SysFreeString(valueStr); : D9 Q W. ]% c9 t r8 J' p [+ a$ e3 c/ g) X5 m1 g
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??? : }5 q5 l8 i5 N4 W+ q$ u# N0 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???? $ S+ q* W3 M; {& d9 m, A& X( M* H- v4 y) C" D3 l5 r& C n
" W6 l9 R4 V$ l; I) ]2.这是request的程序 2 g) d( I% X4 E' {( S8 T v2 w// Request a value from Extend ' \5 s3 { O! G//6 h1 G+ F" T5 Q' ~6 K9 y
// Initialize the variant that will hold the BSTR. Set the variant's# ?1 c3 F) p* N( E1 c1 f1 l
// type flag to indicate the fact that this variant holds a BSTR. Place the- h f1 _+ V% h' }' }
// BSTR into the variant structure.7 y( c: f* w$ G0 o$ j8 B- K. O% s
, A& l3 ~) F8 L$ t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ x3 H! ?1 F1 J' i# Z( Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- l- o2 g# |' D7 u7 z1 s* U- Y
VariantInit(&requestVariant[0]); $ q/ z) W/ I# D" L+ O! z! ~: b1 G! k9 p7 _ requestVariant[0].vt = VT_BSTR; - [/ X3 [. Y% [3 R" h: } F# [ requestVariant[0].bstrVal = itemStr; ( B3 }- \& ]0 A9 ` 2 h) u' `# S* `7 ^6 R! E topicStr = SysAllocString((WCHAR *) L"system"); 7 g! b( n$ d" ?3 t3 R$ K VariantInit(&requestVariant[1]); ( r5 v+ f! L- s9 b
requestVariant[1].vt = VT_BSTR; / K: b4 e3 J; g8 K/ C requestVariant[1].bstrVal = topicStr;3 W6 Z. J/ N' s! C u5 G
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// Set the DISPPARAMS structure that holds the variant. 6 W. K8 `& W3 n6 B1 `( ^ # J" F- a8 n) K1 D dp2.rgvarg = requestVariant; ) x( N+ q' d9 j. V4 w! L dp2.cArgs = 2; : }; u. `% L( p5 U: O# X) o dp2.rgdispidNamedArgs = NULL;$ E# |, S, m7 h: }" k! f
dp2.cNamedArgs = 0;; i, K; R- Y7 q% z; C5 [
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var.vt = VT_EMPTY;$ C* r2 Y0 [+ @5 ?2 F$ d( v
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// Call IDispatch::Invoke() ) z$ E& @1 I1 a( C9 I; _, M, v9 W9 h! K, c+ I
hr = m_pDisp->Invoke( - H+ J' a H2 g4 I) v( W0 o* ?# e requestID, ; v, z1 _6 V! H* A6 \0 t; e* G IID_NULL, . M. c8 E8 g8 c, V) c2 p LOCALE_SYSTEM_DEFAULT,$ h* ?# S- `) @! j7 I
DISPATCH_METHOD, $ _$ O0 a+ v! _% O& H" j( r &dp2,0 c! D, R4 |# z' ^# k- ] ?' ^
&var,* D% @& r. v& ^/ M5 y1 C
&ei, - A- S2 T# L) z* R &uiErr); 7 w% C5 k3 |8 }' h1 d* e+ v / n5 A/ b- D2 _/ P0 @. E SysFreeString(topicStr);1 m9 @) O* d* P. G- n
SysFreeString(itemStr); ' g3 t& y# V# R+ I0 M- c m- W( i请问该程序是获得extend里面的哪个值? : v/ {! C4 E% T9 M2 f* I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????