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: * K! r" }: U& i* a/ b" QName = (WCHAR *) L"Poke"; 2 x" E) ?9 s( i( y % N, @/ v: {, V3 Q: p1 P* e1 D5 r hr = m_pDisp->GetIDsOfNames (+ Y& |! ~% {. {+ K4 O. c6 e" F, x
IID_NULL, // reserved 1 _$ R* |1 k z3 D- }6 W5 f4 M &Name, // Array of names to get IDs for 5 H. N% L" r! E3 S2 ?$ ^ 1, // # of names in the array , F- t3 X0 e1 D LOCALE_SYSTEM_DEFAULT, // System locale+ H4 E4 l" T$ W
&pokeID); // Array of IDs to fill on output: v5 s5 }4 x6 e1 h8 E: Q, b" x" W$ i" x
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if (hr)9 o( u& R0 ~ h# }* @
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MessageBox ("Get Poke Unsuccessful");% A' n; R0 L0 L# x% r3 _
return; 6 L, b- l9 _1 P3 X } / N/ {. S* }* t6 T! | 9 d, Q! g& d; r' r7 f/**************************传递数据给extend**************************************/ - _) G! i+ l0 c. L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 M! G4 k" L# W, c! U* z# {
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valueStr = SysAllocString((WCHAR *) L"1232");& O5 t8 C5 V) L3 f' C
VariantInit(&pokeVariant[0]); 4 `. m1 Y1 Y9 w6 I' A3 f# A pokeVariant[0].vt = VT_BSTR;/ d! V1 o5 ^9 q* _6 m4 a
pokeVariant[0].bstrVal = valueStr; - c" Y+ y9 E9 o$ D- N 4 S: n8 I) }1 U$ P/ z" T' [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( V4 h" r. e9 O1 b6 u" _; A
VariantInit(&pokeVariant[1]); / J- ]* N1 Q. T# x+ J9 `
pokeVariant[1].vt = VT_BSTR; $ W O+ }3 h( d) X pokeVariant[1].bstrVal = itemStr; ) P8 ^/ z8 e4 L' } ) K+ O! q% u/ S2 y2 ?3 f1 y5 [ topicStr = SysAllocString((WCHAR *) L"system"); 5 x H- q7 h. a3 p0 R VariantInit(&pokeVariant[2]); ! | `; f/ c; t! e7 U% f! R, B0 A
pokeVariant[2].vt = VT_BSTR; - f. c% J! n1 N; P) x pokeVariant[2].bstrVal = topicStr; ' q5 T: o4 S9 i) z, M3 C# M; x# k3 X- s
// Set the DISPPARAMS structure that holds the variant.9 J( K* D1 q) j7 e$ x' E
8 U+ ?# Q I( V/ w2 L; n/ B1 e dp.rgvarg = pokeVariant;, n( E. w k& v4 Z
dp.cArgs = 3;+ _* ^/ L( M8 ^, k, M! s" m. L
dp.rgdispidNamedArgs = NULL; C: W4 N; i4 d8 V# Z7 \# _
dp.cNamedArgs = 0;& K9 h6 [" a: u4 }
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// Call IDispatch::Invoke()7 }6 a' C8 k/ |% `
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hr = m_pDisp->Invoke( % A6 R8 g! }) W# d% L4 v# L pokeID, 8 ]# R5 c' s+ U. ` IID_NULL, ( U; K, w$ M/ M6 C! \ LOCALE_SYSTEM_DEFAULT, , T+ |: K" K3 B7 z8 h0 q DISPATCH_METHOD,' L1 D, F1 R* i) x7 s' F2 ?
&dp,2 e0 j/ ]8 H$ k$ J4 W
NULL, $ w/ I# W; r) Q! | &ei,- }3 c+ m5 X5 W
&uiErr); / k' T4 v& T5 ], C8 W% L# Y- R
SysFreeString(topicStr); % l7 B6 g( G% ]' L SysFreeString(itemStr);( n: \, X$ J9 v# p- S
SysFreeString(valueStr); 0 A+ A7 Q; P, g: Z" i3 j1 a8 G - C8 a4 `2 m7 ~9 ^" j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??? ' V, A' C: l" ^- R( F; B, N1 t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????; Y4 H# n$ ] n/ f) }6 H6 I
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2.这是request的程序3 S+ j# Z$ ?+ p5 z) b. N* }
// Request a value from Extend! G% @# L* Y& y: a* u1 Z' L9 K
//5 h! {9 ~4 w: O/ W7 C/ `' S' o. A
// Initialize the variant that will hold the BSTR. Set the variant's5 M- P' {5 Z6 {% [5 h" R
// type flag to indicate the fact that this variant holds a BSTR. Place the & D' y8 q& ?4 D8 e6 K// BSTR into the variant structure. , v) \3 `! k/ S _5 B0 _3 r# F8 x6 P7 `4 m
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( {; }4 c+ C- ~1 d1 u
) M9 A2 Z" V, x5 \' j$ z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( j+ E- f9 g3 s `! x
VariantInit(&requestVariant[0]); 2 A7 @7 M5 w/ z x- q2 s requestVariant[0].vt = VT_BSTR;; n) A: V- _& |# T
requestVariant[0].bstrVal = itemStr;4 Z* `& T5 [) K8 G7 J8 L
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topicStr = SysAllocString((WCHAR *) L"system");& Q3 G$ \ |; K
VariantInit(&requestVariant[1]); - O/ H! r: U$ ?5 h x3 g4 G
requestVariant[1].vt = VT_BSTR; : @6 v& ~: l. E% v( w* h% E requestVariant[1].bstrVal = topicStr;6 ~7 ^- P0 t* l& ?# b
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// Set the DISPPARAMS structure that holds the variant.# O6 Z2 M. e. C- b. D, q# J
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dp2.rgvarg = requestVariant; , l, f- v) W1 u, p3 O. i dp2.cArgs = 2;" u4 _8 f3 P4 c$ ?2 B5 T
dp2.rgdispidNamedArgs = NULL; ) D/ s$ l3 f# N+ i* _' \4 v dp2.cNamedArgs = 0;5 I0 t' t' C1 u9 K+ e$ G
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var.vt = VT_EMPTY; : q2 R# j0 b |5 m + ~) Z7 O' C5 b3 [ i9 n2 Z8 ~+ K// Call IDispatch::Invoke() 0 v4 ?. I% b9 m! A$ k( m( s) m) M8 t- w- O$ u5 r: `! W/ W% r6 T
hr = m_pDisp->Invoke(7 W# G8 q' X6 }7 k) H
requestID, 0 n& V1 v0 `. i9 ^. ] IID_NULL, & r3 X( _4 G7 G y* s LOCALE_SYSTEM_DEFAULT,$ g0 L- b" H k4 Z0 f, S
DISPATCH_METHOD,* {8 W: Y8 W2 R" P. E, @# t
&dp2, 9 i( `9 u- Z1 N- ?' _0 V) } &var,$ {! _( i0 u" J! ^2 H
&ei, + T$ m- L3 X5 A' O* l3 b3 E* Z &uiErr);! C1 n S2 ^' {8 K. V# M% I
+ C& [( J9 I! E- H) U! K SysFreeString(topicStr); & k6 ]/ S2 f& U: y SysFreeString(itemStr);8 ~ a. Y" ?# q
请问该程序是获得extend里面的哪个值?( K0 W u, Y7 R
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????