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: 0 ~! ?3 k8 D+ _; I9 W+ B HName = (WCHAR *) L"Poke";7 }8 `) Z9 G6 j) X+ U6 A! U1 i
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hr = m_pDisp->GetIDsOfNames ( ; \% O) p! E: s* L w IID_NULL, // reserved - W# L& ?7 Q. V4 u2 T &Name, // Array of names to get IDs for' ]2 d% Q3 P4 i2 K. W
1, // # of names in the array 6 j: A9 f, S# N) q' {5 h* l LOCALE_SYSTEM_DEFAULT, // System locale ' k- N: ?5 x) h8 Q &pokeID); // Array of IDs to fill on output I6 ?- j# n a5 O) B* r
$ v& u% A+ A- M, { if (hr) ; f9 Z. R% f, L) H5 N { - Z# c, k9 _! S& R7 e% N" L MessageBox ("Get Poke Unsuccessful"); 9 _" T! y! l( C) a" ] return; 2 W" I- `$ E6 L! w; @ }7 ^3 A/ h" q8 N7 n
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/**************************传递数据给extend**************************************/ $ P0 }. Z2 L# b& ?5 J8 ~& a& k pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 I7 J: K4 ?) U1 q- Z & b3 w$ A; ^: Q- N0 c9 q! Z
valueStr = SysAllocString((WCHAR *) L"1232"); ' ]: a( w* _& |+ J! g VariantInit(&pokeVariant[0]); / X# u% @5 K$ e; |5 e pokeVariant[0].vt = VT_BSTR;( A" d6 S$ k F8 Y: B
pokeVariant[0].bstrVal = valueStr; 8 w1 ]" D& C' ?3 {! Y# s2 J) H3 G3 q- A& E& ~6 v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( C( L3 R: H" l. \, F J8 J+ y VariantInit(&pokeVariant[1]); 2 z, J. z/ d0 ~0 O pokeVariant[1].vt = VT_BSTR; ; N2 {/ m+ e: U! J6 `5 l- X5 h b pokeVariant[1].bstrVal = itemStr; & A) ?5 s. y! x* z- z- y5 d( h$ h" q% D' h8 d' S: a q+ Z
topicStr = SysAllocString((WCHAR *) L"system"); ; n- P, U& T3 y6 J9 @, _% v VariantInit(&pokeVariant[2]); ; }' h, F6 Q0 z9 \: R/ T {" y pokeVariant[2].vt = VT_BSTR; $ ]# n6 H7 |- j% ~5 f) _# K @: b pokeVariant[2].bstrVal = topicStr;. I E6 T9 T" _) N, w" T
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// Set the DISPPARAMS structure that holds the variant." t! z# r7 l) }; O5 ^ e
' E$ V4 J3 W. t) b' H dp.rgvarg = pokeVariant; . Z6 ?! ~6 b" a! G dp.cArgs = 3;1 Q @. m# R& q% ]2 h9 E
dp.rgdispidNamedArgs = NULL;$ M3 o1 }1 g8 w) y) G" n/ Z
dp.cNamedArgs = 0;! V- T+ J+ s7 T
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// Call IDispatch::Invoke()' D' V% \# k3 o8 g* E6 L0 U
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hr = m_pDisp->Invoke( ' O- m% S: s+ x8 E) z" f) i pokeID,8 I' O$ {8 z& e4 S; f
IID_NULL, ; L: v+ E1 T; A5 J1 |' k LOCALE_SYSTEM_DEFAULT, 7 q. Q/ p$ b3 @9 j/ X; A DISPATCH_METHOD, , N8 R9 A6 Y3 ^( q$ J &dp, " |6 z. o3 y: W/ D NULL,; H! @; R( a6 X/ S* O
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&uiErr); 9 ]0 o/ |) i" f. t X/ I: L. N. W3 ] e4 s- ~ SysFreeString(topicStr);. |' d. ]) P- S" A. L; D
SysFreeString(itemStr); A( P0 E! q( m1 b L/ m( B! S
SysFreeString(valueStr); ?! Z4 }2 c( p' M+ J, [3 [2 s+ y' i H
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??? * e8 t: I1 E7 l% [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????1 i( N, A2 F7 ^+ j
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J& R4 ^2 H% P" z2.这是request的程序5 A0 J5 T- U( ~3 r
// Request a value from Extend 4 }2 _: n9 \* j* ?// 2 @) S$ w$ P3 _9 u: M* o6 J// Initialize the variant that will hold the BSTR. Set the variant's % O5 a8 C8 ?5 o6 ^5 F; _0 }// type flag to indicate the fact that this variant holds a BSTR. Place the9 ]0 H# Z, c w2 s+ c+ |6 V
// BSTR into the variant structure.6 r+ g$ h* L* u6 u+ d
& m8 N \8 [5 d/ V# P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); * }# }) t4 ^: W) _/ @* H. s 0 P; `4 H8 S. j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & Q5 A0 G( b7 u* n VariantInit(&requestVariant[0]); 1 [( x7 L$ k0 N5 G0 i* Y
requestVariant[0].vt = VT_BSTR;/ P# d8 J/ z9 B8 l& B/ J" k
requestVariant[0].bstrVal = itemStr;) X$ V$ k6 g7 U7 v) O
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topicStr = SysAllocString((WCHAR *) L"system"); ) m( u8 }/ M6 u7 X VariantInit(&requestVariant[1]); & E7 N W6 B+ M9 b# |" S+ J1 U! c requestVariant[1].vt = VT_BSTR; + r9 J6 q; v& T+ J, R" t requestVariant[1].bstrVal = topicStr;9 O1 r! R- W5 [- Z4 j, X S7 F
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// Set the DISPPARAMS structure that holds the variant.! R* n4 Q# J, {6 Y
4 x7 q+ W+ z% p: l9 Q dp2.rgvarg = requestVariant; 8 J% {3 G: v( I! ?( f$ R5 ]3 K1 f2 q dp2.cArgs = 2;8 w$ B! V* h4 u K$ [' i4 n3 w
dp2.rgdispidNamedArgs = NULL; 1 ^$ a. y( U- T9 k* B dp2.cNamedArgs = 0;4 j! E# X# [+ q) S T
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var.vt = VT_EMPTY; + ^ h2 ], Y/ x, |" d" w/ r) k
// Call IDispatch::Invoke()" R y' G3 r1 W
& N7 B* L5 k& o* I% b! m3 s% y hr = m_pDisp->Invoke( 6 X! `8 z# P" u requestID,$ E+ G1 C+ \$ Q7 w
IID_NULL, ( p, G0 A8 N$ d/ Q2 y! m LOCALE_SYSTEM_DEFAULT,: }& {2 M, M6 X; _ N# o0 [
DISPATCH_METHOD, 5 D4 U$ k( W' |- T- N3 X &dp2, " n$ W; A+ Z- I7 k9 a &var,& x+ r. |) a8 c4 t1 N" C% Z
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&uiErr);# l& g% Y8 }3 t% H& z
6 `8 k, S0 {* N" K7 d5 s) T SysFreeString(topicStr);4 a, A3 R) V' e; O7 @- C
SysFreeString(itemStr);9 \' _2 h( `: n/ s( z/ t, }- z& `9 q* r
请问该程序是获得extend里面的哪个值?5 p, I7 C* w$ @* {$ P4 r$ t7 C
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????