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:4 C; N; L# [ D% M
Name = (WCHAR *) L"Poke"; ) ]/ A* ^5 G3 @" |- [0 g 5 e8 \9 F" b0 n- W2 _8 ]
hr = m_pDisp->GetIDsOfNames ( 3 C* w2 c9 _5 ^ IID_NULL, // reserved+ b* k# }0 p8 ?$ E' D F
&Name, // Array of names to get IDs for ' p$ [) R8 o; V 1, // # of names in the array8 W0 B3 a. @! X& J/ _2 Z6 J' y
LOCALE_SYSTEM_DEFAULT, // System locale & J/ x/ C5 m, {9 [7 Y &pokeID); // Array of IDs to fill on output ( w6 O1 A& ?! e: r5 V5 [, r9 |8 e9 V ! I+ V! r8 X8 ?+ w if (hr) " a9 I* X4 }7 O w { 7 n Y9 A: @+ ?. t MessageBox ("Get Poke Unsuccessful");* q) K- X( ?% m
return;% @1 T G# }; f% \6 z! ? c$ w' i. p9 k
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/**************************传递数据给extend**************************************/ , \: b" u' h# X4 [$ L1 T pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 Z0 i* V2 T4 | ' k* O* M0 @" ^& r/ g
valueStr = SysAllocString((WCHAR *) L"1232"); ) V/ g4 X. }* v/ c VariantInit(&pokeVariant[0]); |3 Q, l) D( l1 G4 F6 e _( v pokeVariant[0].vt = VT_BSTR;* Z! M- w) x/ V/ e. u( a
pokeVariant[0].bstrVal = valueStr; & Q1 c6 W0 J- I9 ^( V" P4 M) R! o) O V; M( \# X+ v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # e4 C) R/ L, |5 q1 Q VariantInit(&pokeVariant[1]); * }6 L. z) q- X; N# }' N
pokeVariant[1].vt = VT_BSTR;! T4 V, K, r0 t `/ U$ q: a' v
pokeVariant[1].bstrVal = itemStr;& R# F0 ^$ E0 _4 s/ c
7 R! y2 {- I( q topicStr = SysAllocString((WCHAR *) L"system");1 [, G7 m$ X' K9 C, l; \; N1 B* L
VariantInit(&pokeVariant[2]); + n M( n* j2 ~2 h9 s pokeVariant[2].vt = VT_BSTR; K8 O) S- n1 h9 V- P pokeVariant[2].bstrVal = topicStr; & Q0 [( f; _" N2 q* E; {1 l8 v6 h" s
// Set the DISPPARAMS structure that holds the variant.+ K( G! e0 S1 r, B" `
$ j, h. Z0 o2 N dp.rgvarg = pokeVariant; q, M/ I3 |/ w
dp.cArgs = 3; ' q* X$ x3 u4 D dp.rgdispidNamedArgs = NULL;/ b# y; U0 z) p3 q
dp.cNamedArgs = 0; + w4 B% y, n/ ^- W9 ~& r' \2 Y % Z2 s; L ^9 k6 H/ u: R// Call IDispatch::Invoke() 4 T& p! C( `# E4 k6 b* s- U8 C5 ?& w9 `; r V! ?
hr = m_pDisp->Invoke( " {! j4 Q% h! T, X0 S pokeID,. Z( {; r+ ~; p& C+ @ B- v( V
IID_NULL, . x: @- G# l' h* C; W3 v" Y LOCALE_SYSTEM_DEFAULT, ) [! K3 h& n4 v' ^. [) W DISPATCH_METHOD,( v1 j* B6 T$ C9 O& e
&dp, & @ K* u- }9 p/ O; x/ P9 j NULL, y) S8 u, [4 ^- ?8 m* e/ l
&ei, 3 F5 r* v$ u+ ^, l* M &uiErr); # \; k* s6 O! V, F" I' j& G2 K6 ~- J& D3 \1 i; ^% ?
SysFreeString(topicStr); ) x; @+ }1 s; a/ Y' Y, H/ ? SysFreeString(itemStr);5 [3 i7 d' @( w& p
SysFreeString(valueStr); + B5 e) H% s$ b9 i9 ^1 R/ E6 i . E. B3 Y7 T8 L! v$ ~; E% N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??? D' t! y8 [$ R: Q7 u8 Z8 }( s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???? 0 r2 N% Q/ z& Y+ [) e, }: d0 n4 N) v
6 y3 L( H# y+ s6 }1 }7 R2.这是request的程序 5 s8 t# X, w8 o! |4 M9 I8 }* I// Request a value from Extend * F& Q( `3 C) c8 k// 7 K+ ^; J, C* h4 b0 U6 R2 u// Initialize the variant that will hold the BSTR. Set the variant's( i+ x# t; p" Y" X
// type flag to indicate the fact that this variant holds a BSTR. Place the; K: K) J1 W1 s+ }' v6 v4 L
// BSTR into the variant structure.5 I3 L% U) ]6 ]2 B0 J6 s% U) L: O
# O6 F( K0 u, N& l% p* z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& |. _7 C6 P( v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: o! j' T2 ?; J- X0 @. [
VariantInit(&requestVariant[0]); 5 v7 Q: }- U: G! t0 U requestVariant[0].vt = VT_BSTR;, b$ A$ a& j2 H4 I
requestVariant[0].bstrVal = itemStr;% O8 ^2 y3 ~$ \+ I
/ c; _3 U, S( n( O0 z topicStr = SysAllocString((WCHAR *) L"system"); ; r( J7 T b3 W+ Y) h* { VariantInit(&requestVariant[1]); 2 u' b* m7 f* m" W% \
requestVariant[1].vt = VT_BSTR;! l# r" I# E+ F' s5 e
requestVariant[1].bstrVal = topicStr;/ s6 ^! ~& _* o8 }1 g) y
2 d8 M, y8 n |. J; Y// Set the DISPPARAMS structure that holds the variant. ! K; Z' d/ Y+ K4 \* D7 r7 i1 u+ e# U& [- A7 Z6 t# n
dp2.rgvarg = requestVariant;" N/ g; O% e$ e% q# ~7 y
dp2.cArgs = 2;* F' F- `$ h) |" ?7 C# }
dp2.rgdispidNamedArgs = NULL;6 R, `, g9 W; K" J P9 I8 `9 Q* F
dp2.cNamedArgs = 0; $ X( B* ~4 M6 T4 |' V( A* ?* |9 I ^8 d( E/ b, P7 ?% ]5 A
var.vt = VT_EMPTY;6 @, z: }/ C1 C4 ^% m8 F. G/ I
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// Call IDispatch::Invoke()5 Q& o- N5 c+ z6 V; D. n3 x1 f
- D$ U9 d. P: J8 F- C! N2 x: j5 N hr = m_pDisp->Invoke(1 u* W3 Z" \ a3 L0 R6 @
requestID,/ u# P6 w4 F% C7 J* u m8 i
IID_NULL, 2 `# i, n* c5 t LOCALE_SYSTEM_DEFAULT, 1 [6 t( R; s9 |$ ?. d' I DISPATCH_METHOD, 1 C7 o A4 i8 ^. d &dp2, 0 d! Z5 }% }- w. U &var,# j+ { M. W' t8 H; v. k7 r
&ei, ) x3 D! @' l4 \1 @7 D& x8 Y1 F! [ &uiErr); 2 f8 h. @' t3 I- W7 g8 M 4 R W) ~' B" r9 U2 G" v( | SysFreeString(topicStr);( \9 ?! P/ H+ e1 }! v
SysFreeString(itemStr); 8 `+ I9 d7 j9 h6 o( m# C$ d( l2 H请问该程序是获得extend里面的哪个值? ) h5 b2 C3 M8 o. D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????