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：# o) q' q6 S" Z
Name = (WCHAR *) L"Poke";4 T* c" V. m: O' O* y
" W D- \ G( q4 [9 x hr = m_pDisp->GetIDsOfNames (5 c* y$ z! M% z
IID_NULL, // reserved6 r u$ j8 b4 j* k2 r3 W' _" `
&Name, // Array of names to get IDs for - `) K4 n4 x o3 S 1, // # of names in the array 0 N; p' T6 @1 k5 M* M0 v LOCALE_SYSTEM_DEFAULT, // System locale , d3 d5 {% N/ k+ Q) m/ u &pokeID); // Array of IDs to fill on output# M, H9 l. U0 {
) F8 h+ v0 \, r5 [6 B% e if (hr)( I K3 F9 H) \: L" G H
{ ' e: w! e9 T$ H3 q) n/ V MessageBox ("Get Poke Unsuccessful"); ! y0 ~! ]9 r: [8 |* V6 X8 m# F return; 3 I3 x/ c' q; d0 z! } } 6 p2 \& }7 `& M- `* n4 d$ }. D6 N7 M
/**************************传递数据给extend**************************************/ % ~5 Y' x5 f9 b! b+ a. k, m* g8 x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ F- t$ t: u* L, u* B 5 \+ h9 X s0 U) s9 G+ Z; z( F
valueStr = SysAllocString((WCHAR *) L"1232"); 5 A! J4 d: I {" B+ M9 x, x0 ?0 W! o VariantInit(&pokeVariant[0]); , F5 n6 d- j! V' b' s) `: c" f
pokeVariant[0].vt = VT_BSTR; 5 I5 b1 _' T0 E. i/ @# }8 x pokeVariant[0].bstrVal = valueStr; . A0 T) k( [ V7 Q; B 4 N! L' O* w6 p) l) |5 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * \7 X3 W1 F3 @* i5 @/ Z+ y; W- k VariantInit(&pokeVariant[1]); / `- p y" z1 F* g; a3 b- F j
pokeVariant[1].vt = VT_BSTR; 6 n4 p3 K6 ?8 T pokeVariant[1].bstrVal = itemStr;: v% o3 u/ [% @) Z
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topicStr = SysAllocString((WCHAR *) L"system");/ X N# u4 }# B+ \9 ^
VariantInit(&pokeVariant[2]); C/ `' P+ E2 b
pokeVariant[2].vt = VT_BSTR;+ w; Q: M7 k d4 t
pokeVariant[2].bstrVal = topicStr; ' v1 u# A3 F, G) R# R7 @ 5 @% E* c+ C5 D! m// Set the DISPPARAMS structure that holds the variant." |" F3 B( A+ K4 T5 V
7 H$ n; Q& M) g4 a5 p' R( J0 E dp.rgvarg = pokeVariant; 6 l. B5 s, S7 ` y: c- d) Q% D' v9 y dp.cArgs = 3; 5 W( g4 Z- @" [ U3 u. u dp.rgdispidNamedArgs = NULL;, T4 j" g: i c/ m2 F
dp.cNamedArgs = 0; . x% I. M: J2 o4 R . z- N( v) ]+ B// Call IDispatch::Invoke()+ F0 k0 t1 V, s( e, p9 f a5 d. P: H
9 l) O ^1 D4 y* E hr = m_pDisp->Invoke( . {- ? U5 X$ I pokeID,+ B$ [1 A( j H4 s: y: R$ k
IID_NULL,! ?5 H, ] I! ?# n; n! f
LOCALE_SYSTEM_DEFAULT, * P. w& r$ o3 D# D DISPATCH_METHOD, ' M; h# w7 v4 [; {9 b5 V9 r* t &dp, , x$ \/ g' y1 |5 C4 T7 N; a NULL, 4 I, x" g# M0 a" i* v$ u &ei,; e9 x% |/ Y! @0 p6 }0 U+ r
&uiErr); 8 w9 a, w4 k* h: y , L' K5 e9 J7 ~ C i5 Y* L" [) M4 B SysFreeString(topicStr);" C0 `9 r2 |" z
SysFreeString(itemStr); : t/ Y. _# m+ ~' S: q SysFreeString(valueStr); * V' u9 |: [! } h) X$ z, X' C # R( Y$ _3 |5 k4 W3 W' @6 [0 @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？？？' I$ k3 x B2 A* f% c, B
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？？？？ 8 u6 [% g9 N% @; J# r7 v7 U/ E% v0 E4 }# O/ l7 G5 q4 M# Q
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2.这是request的程序3 [8 n/ R8 i2 \/ u) J/ c
// Request a value from Extend% `. L% M$ l4 s
//4 C' r" E9 }; y5 W% p! x
// Initialize the variant that will hold the BSTR. Set the variant's: T2 b! x! K$ z7 x, D
// type flag to indicate the fact that this variant holds a BSTR. Place the' f/ f9 n$ m4 s4 [7 ^! Y5 I k- g
// BSTR into the variant structure.# m% @, s( r2 ^8 ~& F
# f: F# G% x- G. f1 W6 r. }( t3 I
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" q9 h8 d0 S q3 R+ F& ?4 N0 Q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 g% ]# Q/ e, h# W9 R8 o VariantInit(&requestVariant[0]); ( ~, z9 f* P0 J: s& I
requestVariant[0].vt = VT_BSTR; , R) R7 J7 M( E# e, r requestVariant[0].bstrVal = itemStr; . s8 w/ I( R2 |) F) J9 v8 i . u2 j" b6 B4 I; D topicStr = SysAllocString((WCHAR *) L"system"); ( x5 L! Q9 ]- t2 s" Y; g4 g/ x( G VariantInit(&requestVariant[1]); ' B7 {* r! j, G0 P; d: h
requestVariant[1].vt = VT_BSTR; : e4 G& P" d* s6 n( P requestVariant[1].bstrVal = topicStr; 3 K! A l @: J3 x7 A" G 3 [% ~# ^; M8 y// Set the DISPPARAMS structure that holds the variant. $ r E$ w5 J& s |) c2 | " I! N2 o1 ?' { dp2.rgvarg = requestVariant;* [$ Z9 [( A( j7 b: J$ @
dp2.cArgs = 2;# B! E# l2 c- x
dp2.rgdispidNamedArgs = NULL; . L4 O* }2 y7 F% d7 p0 G' ] dp2.cNamedArgs = 0; 6 m4 U: _9 d6 ^& u" o8 l! ?9 I/ M2 v1 A3 k% x8 G W+ t, D" G( q
var.vt = VT_EMPTY; " P& b2 [7 O( R* B1 U2 ?& m0 K; G! |% O$ K1 v( {' `0 ?
// Call IDispatch::Invoke()& `1 S% i2 [ h& W2 A
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hr = m_pDisp->Invoke( * L( X& e2 c9 b' b$ ~% \ requestID,3 l1 x7 ` }) H$ t4 Q. ~
IID_NULL, : ?! A) x7 `: D3 T+ @ LOCALE_SYSTEM_DEFAULT, & y H% n; J( k0 E, I DISPATCH_METHOD, $ H) u# m# q% ?2 f1 s &dp2,4 l! t7 b$ a: ~/ o/ u9 H% E
&var,0 o+ D# B2 v) L: T$ S$ ?
&ei,. Y. }/ A( l; [
&uiErr); ; Y( U7 t8 x6 H8 G9 o: g3 c# ] u
SysFreeString(topicStr);2 e3 M& R* k* Q, t, P
SysFreeString(itemStr); , ^4 d& i5 K6 G0 O/ k& D4 Z' @2 s请问该程序是获得extend里面的哪个值？0 k8 ?' \/ o5 I4 ]; m6 s; v
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？？？？
发表于 2008-11-25 19:37:03
