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# H) w5 M& ]
Name = (WCHAR *) L"Poke"; + W/ b. C& i, N$ \7 E/ `+ _& Q6 ~ : p! i' W" X/ q! @. [; }. X
hr = m_pDisp->GetIDsOfNames (: l4 d D3 z# V" b \
IID_NULL, // reserved * u; f2 I! K* o/ x &Name, // Array of names to get IDs for & m0 R4 J+ C' _. [! _ 1, // # of names in the array3 a0 F* {) q3 k& c
LOCALE_SYSTEM_DEFAULT, // System locale 6 i. {" R& R& ?. o1 f; K &pokeID); // Array of IDs to fill on output% q8 M i* ^0 D/ X" d' O
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if (hr) : w y1 P/ y7 D% P# O {/ k& q1 ? e4 g! h2 h6 m
MessageBox ("Get Poke Unsuccessful"); L7 b% R7 |3 O7 B; p; l" b2 |
return; - i8 x- Q. y1 ^* \: d }% C- J9 ]0 h6 @2 Z
' B4 |% i6 E: J m/**************************传递数据给extend**************************************/6 H4 ~. l1 y8 k) a) H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ c8 k/ b. k; \- Z
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valueStr = SysAllocString((WCHAR *) L"1232");8 m7 y4 F" r1 ]' @
VariantInit(&pokeVariant[0]); 5 z0 s; H8 [! {- t: w
pokeVariant[0].vt = VT_BSTR; 6 @: ?4 D2 o1 q/ g6 X pokeVariant[0].bstrVal = valueStr; _* t. s2 E8 E m' M N1 u: r 1 p$ o: @0 P0 E( y! c/ ^8 Y C* c% b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. w) g& `/ A& I
VariantInit(&pokeVariant[1]); ) S5 p; I2 f* H) M pokeVariant[1].vt = VT_BSTR;1 \+ g8 _! s0 X+ Y$ C0 H* S* w* A5 g8 z
pokeVariant[1].bstrVal = itemStr;" T, e: n7 U% k: L& X1 ?- n; L7 d
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topicStr = SysAllocString((WCHAR *) L"system"); 4 Q, M; ~( @+ i VariantInit(&pokeVariant[2]); " `# K& H4 r2 p. c( b pokeVariant[2].vt = VT_BSTR;' `5 p$ i% {2 T
pokeVariant[2].bstrVal = topicStr; 7 M& ?% g* }8 b8 _+ V8 L- b0 a/ V1 t+ A+ I3 e
// Set the DISPPARAMS structure that holds the variant.! Q9 ~# }: Z' y3 M4 h
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dp.rgvarg = pokeVariant; 7 ?! y X! R) E. ~+ q3 U dp.cArgs = 3; 9 Y( Z7 X" ~0 A0 P& g1 |# v3 e dp.rgdispidNamedArgs = NULL;# W+ u: p8 j' q7 `: |8 c0 }$ B* N/ y
dp.cNamedArgs = 0; ' b6 D G, G3 k' ^ ' P0 \% L4 ]6 k+ ]8 ~$ Y// Call IDispatch::Invoke()- w$ t; ?( }! Q
$ h& u X6 s/ O- e; X8 s hr = m_pDisp->Invoke( . z3 Y- p9 X8 T pokeID,! ]5 z* T0 L a5 X) |, q
IID_NULL,9 g3 V' x7 |" C
LOCALE_SYSTEM_DEFAULT, 4 w+ i& z# | {! T M2 O2 L9 I DISPATCH_METHOD,+ o$ x# u% b9 ~" i* b2 B( W( \
&dp, : i0 f! M+ w$ h+ ~* S M NULL, & [! h* z5 A5 b! F &ei, # |/ v2 X( B: R, R &uiErr);9 Z% Y" M: v& p! _6 r2 m3 v7 m" C
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SysFreeString(topicStr);* ?* u! B: _, [- c v
SysFreeString(itemStr);( d% n/ Y! Y0 K1 [/ m* {! P( G3 E
SysFreeString(valueStr); & J- {8 ?# A8 L0 }) r& }: u+ }9 P2 |4 s& ]* V: g( s8 \5 u
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???# k" }7 Q! K* @9 N0 P# \$ b- 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????9 v+ H1 @+ w# G5 q; r. V
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2.这是request的程序9 ~( }4 c9 A+ Z" G2 l
// Request a value from Extend A/ Y( O5 V( ^& f' r. [: V
// & z. r' ^" f* o/ s// Initialize the variant that will hold the BSTR. Set the variant's # P4 K. z' O) u; F" ?) X' k9 ?; p// type flag to indicate the fact that this variant holds a BSTR. Place the) X! |0 f8 v, M; O0 D. d' ~) i' r
// BSTR into the variant structure. " {! J5 Y! A( ^; L& O6 M, e( q# K- L, \+ Z3 u( J5 m0 U" ~
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* b, u) n9 g5 d% |, E. v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" m V; c4 |1 ^ W3 B: N6 D' i
VariantInit(&requestVariant[0]); F2 h' y" V6 ^( x
requestVariant[0].vt = VT_BSTR; , v, E6 @7 g4 f1 P" f requestVariant[0].bstrVal = itemStr; + b s; s( h) ^- ^) l1 S2 x- D1 E$ F5 Q5 ]; E& ~8 D/ V& [8 J. S
topicStr = SysAllocString((WCHAR *) L"system"); + C1 m- I" {7 \" \& N VariantInit(&requestVariant[1]); 7 d) G4 \, F9 D& _$ A requestVariant[1].vt = VT_BSTR; / N7 V) C( e$ P; w3 ]! t) |' y/ B requestVariant[1].bstrVal = topicStr; 2 f8 s$ `) G, q! q" | q- f, K" G j: [! z# s
// Set the DISPPARAMS structure that holds the variant.: @0 `5 C! g. I+ v$ R( m
$ S$ z& B% h+ O dp2.rgvarg = requestVariant;& Y, H, U; H3 J7 m8 w
dp2.cArgs = 2; - w0 `" {' F7 C) z- V" ^8 o0 b dp2.rgdispidNamedArgs = NULL; 6 V) y/ l- z/ v8 `, J( [* W dp2.cNamedArgs = 0; 0 X9 ~2 s1 c# D: B9 x9 F) ?; P2 j! b! Q- K
var.vt = VT_EMPTY;) [! j- O* \+ `8 [; R
) j5 Y9 O: F1 R/ d {# z# H// Call IDispatch::Invoke(); G6 E$ j( g% ]; d# x% J
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hr = m_pDisp->Invoke( 0 n6 J, U ~& M( F& { requestID, - h/ _2 ^% E) w IID_NULL, - n3 w; i4 k" i; J LOCALE_SYSTEM_DEFAULT,+ G/ L2 K/ h4 k8 R
DISPATCH_METHOD,1 E [, r2 L9 | D- d7 n
&dp2,/ p" s; N$ \" N9 m* F5 p1 R6 H$ C7 a
&var,2 S. I+ E! |! k. ?& f
&ei,: N8 M0 y( b" I7 |. y
&uiErr);4 G9 ~/ j7 P3 E* q7 Q( H. a8 X% ^
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SysFreeString(topicStr);" j7 B& d6 o) ~
SysFreeString(itemStr);0 _ e/ E* o+ j# a I" E. s+ \2 Z
请问该程序是获得extend里面的哪个值?2 O5 r r) v. K4 D$ Z
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????