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 \2 V4 Y3 ~7 `! l0 Z
Name = (WCHAR *) L"Poke"; `; `& B3 j/ F& ]1 i _! U
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hr = m_pDisp->GetIDsOfNames ( # S4 G9 X( }$ I; }0 w. J6 I IID_NULL, // reserved T f- o3 p+ g# g: q; ^. r
&Name, // Array of names to get IDs for % |0 d/ u* h- D 1, // # of names in the array8 p, I w3 t/ s8 x) g
LOCALE_SYSTEM_DEFAULT, // System locale: X! d9 d. T% U
&pokeID); // Array of IDs to fill on output2 |9 f4 c+ c. ^* d/ Y9 z
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if (hr) 4 q' z2 r+ Y% P { ' f8 c; E1 t6 k; p% J MessageBox ("Get Poke Unsuccessful");3 W0 K* F9 v( r
return; 0 f$ u4 B3 Z" _: T2 e" @; Z* u" M } 7 R' n: I1 @5 S4 ]) e; x, R : ]9 ~: S- A7 i: D; Y8 O; x/**************************传递数据给extend**************************************/, R5 u& l" K! ?* |. \+ \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 A) }8 p L# k/ x
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valueStr = SysAllocString((WCHAR *) L"1232");3 p7 {5 t* j# [, P
VariantInit(&pokeVariant[0]); ' \) ?# M- r. x pokeVariant[0].vt = VT_BSTR; 1 e, C% O) u8 }9 Q3 x! c5 m7 L pokeVariant[0].bstrVal = valueStr; : W, Z1 ]5 S3 W4 q4 p ; N" k- T5 }' b- S; U+ e9 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 ~5 d& d' w9 K4 q6 ~. s
VariantInit(&pokeVariant[1]); 8 W9 N, T8 }! v9 p6 |" x. [! d z, I pokeVariant[1].vt = VT_BSTR; 6 Q4 o3 ?& O: \+ E+ l0 p pokeVariant[1].bstrVal = itemStr;7 n0 f: a% }, K9 D. L# ]8 z
+ Q& O5 F$ U4 t I topicStr = SysAllocString((WCHAR *) L"system"); ( j9 `1 y- j" F+ b9 [2 U VariantInit(&pokeVariant[2]); ( j6 V _# O1 [0 h7 }
pokeVariant[2].vt = VT_BSTR;- k) l, X$ R1 s( {5 @5 n
pokeVariant[2].bstrVal = topicStr; 3 e1 b* ]0 ~& q, ^" Q - G6 ]# n8 p0 @- z1 h, r) D9 ?9 v// Set the DISPPARAMS structure that holds the variant. ( z! U" N9 E* U" F1 y1 [. b$ I% |+ b/ X- Z1 Y
dp.rgvarg = pokeVariant; ' N4 d. [: x# W4 A: V dp.cArgs = 3; 0 p6 B+ M( H1 {$ A7 | dp.rgdispidNamedArgs = NULL;, b% J4 o4 u" p
dp.cNamedArgs = 0;! `7 z4 j( Q! m% ?: _9 C
+ ~ D' O, K$ ?& s1 g a// Call IDispatch::Invoke() 1 q. p, {$ {/ j) E @* ~* d7 o) q; M hr = m_pDisp->Invoke(9 d( `- l/ c4 x3 U6 N* k: ~
pokeID, % C1 h) w* d' M IID_NULL,) Q2 W% O( `" {4 Z# a
LOCALE_SYSTEM_DEFAULT, . ^' X+ |; [0 z& j4 y& P$ R DISPATCH_METHOD, % C2 {. ?. r5 x &dp, & C) l. p% r" k$ I NULL, + E( W+ k. }0 a0 H' Z9 ^ &ei,: D( P' _. t# ?: n! \
&uiErr);2 q2 _& R/ @4 V- }
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SysFreeString(topicStr); 3 T0 T w" S; w1 k2 B q SysFreeString(itemStr);3 B' E# N) z' @9 E
SysFreeString(valueStr); # q! V' P. g. e% x% v! l9 f% C % o# C1 s2 d, m& R+ e0 a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??? 8 P* W. f& s f$ ^8 R! x+ |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????& i$ k9 J: T! C. h# P% c: m/ ^( G' ^
3 G4 I `! ?7 ]6 o ) z" I3 j6 O% A4 N S2.这是request的程序0 }$ e* [& w1 a3 r/ w
// Request a value from Extend4 n0 _0 k, F! R% n0 L g' j$ `
// , T# }& v* w9 H) W# T0 d// Initialize the variant that will hold the BSTR. Set the variant's+ ^/ V' X7 V8 U' }
// type flag to indicate the fact that this variant holds a BSTR. Place the . B- z' a% `4 G, O, j// BSTR into the variant structure.# \; g% ?: h/ s3 g& O& j) v
& p1 V+ e' i8 X" d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- R6 L6 k/ [5 o. o' i+ N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - \3 }9 X* W3 A- s* q7 h VariantInit(&requestVariant[0]); . C2 e6 B- ]8 {9 z. |# O requestVariant[0].vt = VT_BSTR;2 G7 d8 z" g% X: D! U
requestVariant[0].bstrVal = itemStr;" _8 ~$ e4 K/ s: Z! P' ^
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topicStr = SysAllocString((WCHAR *) L"system"); , E" c2 j5 C9 B V, s VariantInit(&requestVariant[1]); 1 R7 |+ C; F2 E# y' N s8 K
requestVariant[1].vt = VT_BSTR;2 x+ f4 c7 T1 g' k' J% \
requestVariant[1].bstrVal = topicStr; ^ G+ `$ ?0 ^& y4 L& f% J
! F1 n; f8 c% G, t// Set the DISPPARAMS structure that holds the variant.7 r& ^. g2 H1 l/ ~% b% G9 F* u
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dp2.rgvarg = requestVariant; 3 i( [9 h9 v, E. P, C7 F/ F* s0 W dp2.cArgs = 2; # s6 M/ q$ A* n: u dp2.rgdispidNamedArgs = NULL;! w6 ?! _7 R$ i& m
dp2.cNamedArgs = 0; ' n6 i% R% `1 | ( o% ^" Q5 N7 C0 n5 w- |/ Z) U var.vt = VT_EMPTY; 6 F5 A/ X% N" N' b6 @6 U: A3 \) F& V' n# z
// Call IDispatch::Invoke()$ _* N7 s- t/ o$ _* u% b! p& K! Y0 t1 {
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hr = m_pDisp->Invoke( + I% k ]) Y' V) h: F/ ^4 g9 b requestID, # n7 J0 k: m/ q) U IID_NULL,: \* c: H9 i$ V; a
LOCALE_SYSTEM_DEFAULT, ' l3 `3 i' Q0 S/ p DISPATCH_METHOD,0 ^: ]8 q5 G. _1 |, s! ~. b
&dp2, 0 W) P% R. Q5 i# w) _ &var, % e9 a' Q0 f. g& p &ei, ) g+ o3 ~: w" B; F( M& V/ B &uiErr);9 b& Q5 u2 d# [. \