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:1 r, c* [4 @# C' n7 X
Name = (WCHAR *) L"Poke";* c# W& M8 A7 e: K+ A
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hr = m_pDisp->GetIDsOfNames (& y0 n3 o/ \! Y! k: ?0 h6 u
IID_NULL, // reserved- o! x7 a) J# e
&Name, // Array of names to get IDs for - h- I6 R9 d7 i: \- v 1, // # of names in the array 2 h! [0 v* x1 Q. \( I LOCALE_SYSTEM_DEFAULT, // System locale 9 q$ k3 w$ u" z- {, U &pokeID); // Array of IDs to fill on output: q6 a* I' E4 X8 L: J
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if (hr) / @0 O- W! f6 l$ T# r { : o" ?* h6 Z7 ^" k& q b- s MessageBox ("Get Poke Unsuccessful"); 5 u! W! z/ p% N return; 9 `3 z# @) D( z# j+ v# T2 V }8 b0 _( x' _6 ?- H! r$ v
. C1 ~% ?$ e! A5 \$ x P" `/**************************传递数据给extend**************************************/ + q% r; c+ F3 X3 ^5 E( P+ t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' c5 r1 i7 A% G% R
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 L* d5 H2 }6 o VariantInit(&pokeVariant[0]); 4 e3 h: X4 | w. o' `0 U1 ^ pokeVariant[0].vt = VT_BSTR; 8 `5 O8 \8 e1 e pokeVariant[0].bstrVal = valueStr;3 ?6 K ?0 K6 W0 j* D5 E% C
j/ Q9 y4 ^+ n+ i; M+ [9 E- B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) S7 E A4 d& Z& Y* O
VariantInit(&pokeVariant[1]); , t. v- y( r& e: D2 B& [ pokeVariant[1].vt = VT_BSTR;7 \6 g; i: n& B: Z
pokeVariant[1].bstrVal = itemStr; 8 Y0 Z% Y2 I; @( K( O1 {% p7 d5 |+ u4 r
topicStr = SysAllocString((WCHAR *) L"system"); [( a1 R) B3 l5 ] VariantInit(&pokeVariant[2]); - x% M0 W( Z* T. r8 W% `3 M
pokeVariant[2].vt = VT_BSTR; 0 J1 C3 p' u* ?# \: T7 z+ A% @ pokeVariant[2].bstrVal = topicStr; 6 U, X/ M, N% w* h 6 x3 z; ]: c/ u+ q) ~ L// Set the DISPPARAMS structure that holds the variant.& S4 O! n8 E4 O7 n7 @* D
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dp.rgvarg = pokeVariant; ( h/ g, g# G: p2 L% r: C' z! P% | dp.cArgs = 3;8 w! g* R7 \5 C6 W& s3 C+ Z
dp.rgdispidNamedArgs = NULL; . p; ^- p A. G: ^! [ | dp.cNamedArgs = 0; 8 a2 D9 Q& Y$ u# k/ _# o+ | i6 }$ l; L; d$ I8 p
// Call IDispatch::Invoke() - d/ r' B, R. q0 }4 w' j " a( M4 x- {' D hr = m_pDisp->Invoke(/ z$ ?+ j+ ]4 t" q
pokeID,* S6 D0 j/ ^% z" H1 ^
IID_NULL,, X0 G) b, |% }) k4 f" b0 A
LOCALE_SYSTEM_DEFAULT,; Z5 X. `1 H" P9 Q% p/ ~. z) d
DISPATCH_METHOD," Z% Z, L% m" l, H
&dp, & b6 q' }8 `5 L0 G NULL,7 l. \% K \0 @( V
&ei,0 q) `7 Y% u4 C* I$ h
&uiErr); 3 u+ i6 _: C6 S Y3 J% S1 x( m2 R+ F# V( r- K
SysFreeString(topicStr);: X0 ^# z$ q4 n. V
SysFreeString(itemStr);% K; J" `" b# d
SysFreeString(valueStr); 2 c9 T! z+ y! o+ {7 l! X( h0 _ / c2 ]& t3 C% I; O1 M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???, t g' D& U A. Z3 u$ X* Q
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???? & }6 ]1 A' J, p# y J& v; k- E, c) z, [0 c$ l
0 n( a4 k" c- X' u4 I! V! K) {% h2.这是request的程序7 T% u+ L5 q7 N/ Z& d: y' `
// Request a value from Extend, O& G! c' k8 l! _7 b$ p0 [
/// k3 U/ L. }1 S" X
// Initialize the variant that will hold the BSTR. Set the variant's 4 }* b# {: E" v; O4 {) f! |// type flag to indicate the fact that this variant holds a BSTR. Place the 5 F2 Y2 R. |0 }3 k5 @, _: f// BSTR into the variant structure.; T0 ^2 w6 ]' ]
}. \' j1 `( W% d" a( P' v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 B0 R8 e" W( @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 m7 r- q, W( S' {( m VariantInit(&requestVariant[0]); 2 H& q: u" g- U7 |! o requestVariant[0].vt = VT_BSTR;3 L' u3 s& h' i' U l# W: z
requestVariant[0].bstrVal = itemStr; w% Q+ S& m b# b1 H' w
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topicStr = SysAllocString((WCHAR *) L"system"); M6 }5 i3 k$ b* E' X VariantInit(&requestVariant[1]); 9 q& ?7 r, {7 \* D' P1 {0 o. g" L3 r requestVariant[1].vt = VT_BSTR;9 e3 {. h( c# [2 P* v. e( h
requestVariant[1].bstrVal = topicStr;- h& B0 E- R1 y6 E0 ?7 Q* r; M" M
/ r H* X; a, ^// Set the DISPPARAMS structure that holds the variant. # N- l. z! W) D' Z% P9 v, s' S8 k$ r8 X& |% f; r/ n; G
dp2.rgvarg = requestVariant;$ j. @4 C6 Z, a
dp2.cArgs = 2; ; Q5 L% m. Y& C6 e8 k: U: g dp2.rgdispidNamedArgs = NULL;" N- l( s5 P; A5 b/ o0 }
dp2.cNamedArgs = 0;- y# Z: J1 ~! o9 g. Q3 [9 O. D/ m
! j ]+ \5 j. p4 r* L1 |6 U$ I& k var.vt = VT_EMPTY;- \5 G8 U, G6 ~6 A$ |. @
. o8 W/ g1 I% P- w$ a* g( f// Call IDispatch::Invoke() 4 o# j8 U: j$ N n - F( E% l6 E' ]. ^ hr = m_pDisp->Invoke( H7 i# D: L7 {) p requestID,0 g9 B, b6 C& q5 W0 w- a) ?' q
IID_NULL,) y2 T/ O5 E" G9 [; b
LOCALE_SYSTEM_DEFAULT,9 C/ r7 u ?9 k
DISPATCH_METHOD,7 E( L1 H9 n, x- I9 H& L2 a
&dp2,* y3 `' p- z4 F x/ z; b
&var,# E5 T# G2 p4 e2 {7 R$ g
&ei," f: h8 T! c$ Q: o
&uiErr);4 |4 @! M$ {5 R; K& ?, b2 `