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:3 O) w8 e- c2 V, z( d4 Z4 N
Name = (WCHAR *) L"Poke";6 C' j3 Y/ b/ ~6 \
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hr = m_pDisp->GetIDsOfNames ( 2 K' W9 x9 S5 ]6 j IID_NULL, // reserved ; A/ y$ z6 G* r" g6 W4 l &Name, // Array of names to get IDs for0 T0 O. b0 e5 P3 S2 b3 V
1, // # of names in the array h# W9 o$ N: W7 b- \* l) [$ R
LOCALE_SYSTEM_DEFAULT, // System locale, Y* L/ |2 t/ Z2 @
&pokeID); // Array of IDs to fill on output1 ]- A8 L$ X: R' ?7 H* X
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if (hr) . `/ S( r ~. | w2 u% Q {4 ~ b3 b7 L- V. f# Y1 v
MessageBox ("Get Poke Unsuccessful"); 9 @2 \1 d# T. l5 J+ u9 \8 W return; 4 R$ X$ r& G8 d1 `4 P }! Y! R8 J7 m9 m, d8 D
; v* ^1 S5 z7 j( u/**************************传递数据给extend**************************************/6 b- y8 d9 d8 I) a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 s. i* y, |. E/ ]6 ~ 3 R7 \% @- X4 u0 p- v; J) z k
valueStr = SysAllocString((WCHAR *) L"1232");3 J( Z8 E" Q) Q/ C
VariantInit(&pokeVariant[0]); 5 i' j1 ~6 b3 N# g
pokeVariant[0].vt = VT_BSTR; : W4 Y' V( W5 J e' W) r3 S) W% D pokeVariant[0].bstrVal = valueStr;+ f. G, [9 L/ T% y9 ~8 T8 u! `- ~# H
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . z2 s( K2 {3 Q5 j9 N; \# @8 W VariantInit(&pokeVariant[1]); & Y& v5 J3 o# k% z pokeVariant[1].vt = VT_BSTR;4 r# |" T2 @9 q* a- s# v$ C
pokeVariant[1].bstrVal = itemStr; 3 k5 d2 L8 X$ s/ R; h% i 5 W4 p$ A7 j$ ^2 _) Q topicStr = SysAllocString((WCHAR *) L"system"); & i) `: `+ O0 c: n' L+ V+ n/ [& i VariantInit(&pokeVariant[2]); 3 f, ~9 h9 J0 q# P3 P/ @' P
pokeVariant[2].vt = VT_BSTR;. ?) U+ b+ Y6 u9 n: o3 P8 M
pokeVariant[2].bstrVal = topicStr;& C* C6 g9 s, @8 Y5 S I
0 r% x, _$ l3 c* J; v% I// Set the DISPPARAMS structure that holds the variant.+ t* j. C G0 l6 |
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dp.rgvarg = pokeVariant; 6 ]) K8 q+ \+ {2 E: }$ \. T q j dp.cArgs = 3; % s0 P) o" s' H0 g( p dp.rgdispidNamedArgs = NULL; / D7 z5 n" m2 P- O! S+ t4 |; P dp.cNamedArgs = 0;. I# R: X( h8 u2 }4 }
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// Call IDispatch::Invoke()5 v# o8 s* l) l; q
* N$ C/ |0 L8 R# m/ ? \9 Y hr = m_pDisp->Invoke(3 r8 y/ f' S1 w( i0 {* ?3 Q
pokeID,7 A, _+ g: F( ?+ P7 ~8 k6 I/ c
IID_NULL,- R4 R; S7 v4 Y) k* W( e" U
LOCALE_SYSTEM_DEFAULT, * s* b% ?: K! d" {# O6 [- r# }& w3 V DISPATCH_METHOD,5 f& X/ X2 w/ Z/ n
&dp,1 o% ]1 i; _0 J6 p
NULL,- ~" a( z6 N# Z& D0 V5 E1 d6 P2 d" s
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&uiErr); : q) S2 x: {* U' @; ? 0 u8 v ?2 P. l% c# D! @( V) ^( ~# k( S SysFreeString(topicStr); " b# q- |. T' g/ g SysFreeString(itemStr);) S; }, _( e. D2 h( z8 S+ u5 }
SysFreeString(valueStr);/ v8 f' M: w: a% c2 e1 K6 `$ [6 Y
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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??? 4 G, M6 ]8 {+ `" f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???? # r' _5 t! ^. u+ p A% s . i' I8 b: i+ Q, Z5 k$ } 0 A3 [+ U6 x, j+ ?) i( W6 }1 |/ m2.这是request的程序% M; N' C7 Q! J" K' _0 J
// Request a value from Extend " G! `; _2 K' B( \- \9 J: }//& f2 C2 m) m* R' g/ ]* b
// Initialize the variant that will hold the BSTR. Set the variant's+ E; \2 t# f- Y
// type flag to indicate the fact that this variant holds a BSTR. Place the + }9 c C( o7 F8 S* y& D( w2 J8 V2 ?// BSTR into the variant structure.2 q" \# i6 o. a3 v6 b" X
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . z7 s- L2 r" D9 L' Q+ ]) \% ]. l 5 z# P) q8 B" N }: g' v5 K7 h( w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : f& y/ N5 t, J; D- x VariantInit(&requestVariant[0]); , M! s l s: U6 c( g Q
requestVariant[0].vt = VT_BSTR; + k6 _/ H0 L# O e) o requestVariant[0].bstrVal = itemStr;6 x: r' H; x9 j+ u+ G0 A4 ^
/ n+ v: g+ m3 }* W; u9 F topicStr = SysAllocString((WCHAR *) L"system"); 8 F7 h, ]$ G/ h( n: r z VariantInit(&requestVariant[1]); : w/ z$ t. w3 W& w
requestVariant[1].vt = VT_BSTR; 9 |) f9 K# z9 c requestVariant[1].bstrVal = topicStr;( w) g. M4 M, i$ k8 s
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// Set the DISPPARAMS structure that holds the variant.% R/ `" `$ a% q) [/ w% Y+ L2 e
5 V1 t& g( G) B2 X) F dp2.rgvarg = requestVariant;$ z; O8 m% h3 k7 \' w1 h8 t
dp2.cArgs = 2;7 {! b& i* t6 r2 @
dp2.rgdispidNamedArgs = NULL; 3 H1 F, ^6 _3 X. I; y dp2.cNamedArgs = 0;/ z& p; [( [" ~
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var.vt = VT_EMPTY; / Y5 b7 J% o5 _1 w. f% G4 F1 \; ^. Z
// Call IDispatch::Invoke() 2 }: j; l$ r5 [# `8 j, }; b! d+ R& t; U' n
hr = m_pDisp->Invoke( + j7 l3 X- t/ d$ F requestID, + a5 L4 ~% g" C0 A& M6 d9 g IID_NULL, ( p9 b6 j! e( G1 M) H: | LOCALE_SYSTEM_DEFAULT, 2 O# q, s2 c8 b4 ~1 q DISPATCH_METHOD, 9 k& ?+ w" }; t9 N) l8 {1 X( D &dp2, `; H# k* h$ x &var, - C% y+ m$ b: B &ei,8 l+ H! o' `, X6 A7 b& v
&uiErr);' v4 l- C' [- p! c0 i
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SysFreeString(topicStr);" ~" D; H$ a. r& [
SysFreeString(itemStr);. J9 @) q6 }0 B0 G7 r5 d6 I1 L
请问该程序是获得extend里面的哪个值?* @* J: V1 G( ?# l9 {- L
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????