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: % |9 F E, T o7 ~# F+ }! jName = (WCHAR *) L"Poke";5 ?+ z5 _& ]! L5 D
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hr = m_pDisp->GetIDsOfNames ( & |* _# y4 |" Y" V# m7 _: W IID_NULL, // reserved : {- p1 O8 V8 m6 s, x &Name, // Array of names to get IDs for ' }8 h/ v5 N o% G! N" w 1, // # of names in the array+ L3 u+ P9 H" _: w0 C- j
LOCALE_SYSTEM_DEFAULT, // System locale, ^7 L @: X5 u: g7 `. ~) d4 A8 ^
&pokeID); // Array of IDs to fill on output! t) ]. {- C1 J. ^
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if (hr)7 r+ C7 ?& F' ^* O0 g7 E4 d$ v, A y
{" h% p, \% d f, r" u7 v- e/ r1 F
MessageBox ("Get Poke Unsuccessful");& o" l2 ~. U; s
return; 7 o0 {1 `" s6 F# K4 C } " s/ l( L5 y) p 7 m7 G j! A% R+ e/**************************传递数据给extend**************************************/) c' R& M, d6 C% A
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 y d4 i( d0 Q7 d* [( e) y - j0 ]% x# m( i% E: s; K valueStr = SysAllocString((WCHAR *) L"1232");. U7 ~ j4 j3 }8 Y1 v9 n2 {) _
VariantInit(&pokeVariant[0]); , z' A. }* }1 D6 B pokeVariant[0].vt = VT_BSTR; - J( s. T: q" T, A pokeVariant[0].bstrVal = valueStr; # A" n! X% \; o- ~: M3 h) h3 F8 `3 Z: F8 k, Z( R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' J+ Z" A- }, Y2 H N3 p
VariantInit(&pokeVariant[1]); , w- C+ V8 r! {8 |/ S
pokeVariant[1].vt = VT_BSTR; V6 t; |, ]7 r8 ~7 n1 B' j pokeVariant[1].bstrVal = itemStr; & Q8 R& _' n- c8 v; t) R! A2 _( c/ \, F+ ?9 A
topicStr = SysAllocString((WCHAR *) L"system");+ a$ M, K" ^9 e! @
VariantInit(&pokeVariant[2]); ' |4 ?6 l# G5 f4 x' d7 i* U
pokeVariant[2].vt = VT_BSTR; _8 I: C% ]: R0 s" O
pokeVariant[2].bstrVal = topicStr; 2 f6 F3 P% X8 b' N ' b! x+ A6 n2 S: o. ]// Set the DISPPARAMS structure that holds the variant. # K: t, H# f& n) w+ Y D% B 5 q" U* b X" F [5 q dp.rgvarg = pokeVariant;4 k' a" r+ C' R4 y1 j4 {. M9 ~
dp.cArgs = 3;6 k, w5 j2 H- {" E) b+ a
dp.rgdispidNamedArgs = NULL;2 R5 B3 b: R0 k# p
dp.cNamedArgs = 0;" y1 X8 ?1 L) y* B. @
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// Call IDispatch::Invoke() 4 G3 Y# Q! j6 Z$ B* q4 y6 ] , J0 @" v( b' l: z1 D) t4 ~6 C. N K hr = m_pDisp->Invoke( _ ?# p# g$ F+ t% `. ]. z# Y
pokeID,+ A0 |0 A% [6 @. R+ M' [
IID_NULL, 3 o; v& V5 [7 m0 ? LOCALE_SYSTEM_DEFAULT,, z5 [% ~ V( T. s4 Q/ G y
DISPATCH_METHOD, 0 Q7 j: b; b0 x; S# I0 e &dp, ) _& [ `+ V0 o6 h NULL,! f. q( u3 n: Q) x/ d
&ei, 0 Z( T' ]% x% A. Y* p &uiErr);- T8 g; i" x. D! L" W
: }2 G5 F) G3 X& { SysFreeString(topicStr); $ s, y4 i8 b' ^# S8 s- s& J7 L2 F1 X SysFreeString(itemStr); : U* A. V' e$ |; h: ]2 e+ W" c SysFreeString(valueStr);, v& f# u( Q; w) F5 K
! G: a( P/ e0 C. m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???- @. C2 o7 k/ L$ a, b& U9 ^
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???? ! e9 X0 t6 ~3 x2 l- P) L4 K1 Y 6 V. v. C9 s& X. v G' Z0 J- y. I/ l2 g4 }* O$ x
2.这是request的程序; k9 D- M, s, J1 `& S
// Request a value from Extend # U$ v' e, h8 i1 L1 F- y; Q; w// 6 O B9 J5 e: J8 i# j3 g// Initialize the variant that will hold the BSTR. Set the variant's T: N: y/ T$ r. B// type flag to indicate the fact that this variant holds a BSTR. Place the8 m# X7 z$ I P
// BSTR into the variant structure.3 w8 `1 J) z$ n
4 X5 e7 W+ k3 l/ \2 C' \: e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ O& i9 _* K9 A+ E- m ; j" Z9 B4 E: o# b; v! [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " w' d4 c$ H7 `8 A, b VariantInit(&requestVariant[0]); 2 T# h5 i( \8 ]) F
requestVariant[0].vt = VT_BSTR; ! v+ ^, \; m. z" X" T1 ^ _% F t requestVariant[0].bstrVal = itemStr; 2 }4 r$ }; j6 F6 Y& C' D0 ^ ( L! l! | j6 h* {7 X+ s topicStr = SysAllocString((WCHAR *) L"system"); 4 h2 {: s& X# Q& \4 R VariantInit(&requestVariant[1]); # n' d) J1 M8 j% _
requestVariant[1].vt = VT_BSTR; - S5 F% h* k1 x* Z& k. O# h* ? requestVariant[1].bstrVal = topicStr;0 n+ R. s7 r8 R% `1 J( x6 }
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// Set the DISPPARAMS structure that holds the variant. u) c6 H' @8 ?5 [+ H
/ V) U$ ]: y1 Q+ C5 y dp2.rgvarg = requestVariant;( K. |, Y0 v. U \( Y+ I3 `! Y. i
dp2.cArgs = 2; 6 b) v* J! A1 k2 X0 K3 X( A% k2 O dp2.rgdispidNamedArgs = NULL; , V) D. V; P) U% B" ~& W+ e6 R dp2.cNamedArgs = 0; , Z2 W0 ]) z7 t2 l- S( S2 C- O& C % W, }5 v; M' u3 x/ I5 d var.vt = VT_EMPTY;. a: m/ K" l2 T% M3 @5 _
8 w1 H7 M7 ~: w: Y' M, G7 l/ K// Call IDispatch::Invoke() . h1 c0 _ U7 V% ~( d$ I1 c* J% s( _8 e/ G
hr = m_pDisp->Invoke( 1 Z6 p6 a5 E5 Y, [3 ]+ K' c6 L requestID, 7 g- E8 {( y. M0 \3 m0 K9 l$ O IID_NULL,2 G: d* B! K; N" `: L3 \$ @* F3 E
LOCALE_SYSTEM_DEFAULT, 9 {6 j' u% u5 z* Z2 b2 d8 {/ m DISPATCH_METHOD, 0 @9 h# d0 v @$ [0 |# q &dp2,2 U, v& j, P7 L. c8 o. J0 T( E/ I H
&var,9 g' T0 g9 _0 {+ h4 j @+ ~- g
&ei, ) G2 h% A: |3 w &uiErr); - P+ s1 f8 c7 N" w4 K 0 f- f/ o; F( O4 t# Z& u SysFreeString(topicStr);1 \6 @( H) m7 {4 D5 G
SysFreeString(itemStr);8 `" `2 U; l! r7 D2 U2 h
请问该程序是获得extend里面的哪个值?. k; L# |% i- D' b$ U1 W
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????