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: $ t! n) \! |4 V) }5 S5 x. |5 K9 Z. NName = (WCHAR *) L"Poke"; ^- V- {& ^$ V0 L# l. S 7 O: U( d8 K1 Z' p6 S% s# r" M hr = m_pDisp->GetIDsOfNames ( 3 g) n( Q9 P% I5 l! ^ @( _ IID_NULL, // reserved - C. [1 H$ n, D; d2 d/ u9 S& s &Name, // Array of names to get IDs for2 X% @; S" v \# S$ _( A
1, // # of names in the array ; H- a8 \( ~% \8 k7 ]# E LOCALE_SYSTEM_DEFAULT, // System locale* k3 P! y9 T& Q
&pokeID); // Array of IDs to fill on output9 d' G2 E! P5 v. q8 |) ?/ L5 {
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if (hr)3 s" P9 p2 o S( N& j+ Y3 @2 U5 K: a
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MessageBox ("Get Poke Unsuccessful");' J/ E" R0 H9 ^- @, S
return; ; a4 S( L! {+ h }8 d. o% \1 z5 p0 J# f8 w' t7 d& W4 O
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/**************************传递数据给extend**************************************/ & {" s- [4 B0 ^# E2 ~8 z8 D% \0 Y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% Y, _4 B: g' m H; n
' \* h& f9 P+ x! q valueStr = SysAllocString((WCHAR *) L"1232");) b/ I: { R1 A
VariantInit(&pokeVariant[0]); , Q$ d' e! d2 c% K6 I( @ pokeVariant[0].vt = VT_BSTR;+ s/ p# C8 d- P
pokeVariant[0].bstrVal = valueStr;# D6 J9 E0 X' {/ A$ S
c4 }' x$ Z' f/ F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) q$ a0 z. h( `
VariantInit(&pokeVariant[1]); , f. o% ~. u9 ^7 u pokeVariant[1].vt = VT_BSTR;, u8 f1 c/ a/ d9 M) D% N" u2 ?
pokeVariant[1].bstrVal = itemStr; ! r0 ~7 U V. i9 f' u Q. E+ m! @' c3 x) C
topicStr = SysAllocString((WCHAR *) L"system"); 3 J+ r2 E+ [+ }( X0 a VariantInit(&pokeVariant[2]); . J, e9 ]2 q% A1 u7 [5 I pokeVariant[2].vt = VT_BSTR;& i$ n O" t5 `6 B+ k
pokeVariant[2].bstrVal = topicStr; 0 m, q& b6 C7 X5 W8 X! |& [% j i2 B8 F2 m; \4 K+ l- {
// Set the DISPPARAMS structure that holds the variant. , @9 A; ^( d9 K! F7 L 4 x( |; f) t2 O: ?7 \ dp.rgvarg = pokeVariant; , z, q, I. v8 p dp.cArgs = 3; ( \& q1 o9 ]9 A4 ` C& W) Y; }$ n; ~ dp.rgdispidNamedArgs = NULL;' u2 Y( f3 [. b( ?
dp.cNamedArgs = 0; 6 G$ e4 N( u9 Q6 s5 g& f2 w, o$ T0 A* }6 W4 W/ s
// Call IDispatch::Invoke()8 d# e' g: A3 {# r) M2 M5 ?
. S, j8 N" t' M* f5 i hr = m_pDisp->Invoke(* j/ {& _! w/ @& ~9 R. g+ K
pokeID, 6 C7 O% C1 Q& O7 b4 N# |% |8 c IID_NULL, $ i( G" ~8 P8 e* ?% g LOCALE_SYSTEM_DEFAULT," ~) z& Z2 P- Z( A, R
DISPATCH_METHOD, / M7 J x/ F" X9 ^6 t; q$ F &dp,4 l/ p- i: x3 B0 c$ D2 a
NULL, * v2 z5 Z0 Q: G& H0 r &ei, 8 ~8 g+ f4 O3 Q4 p &uiErr); 1 z% d: |2 Q, w( ]) ? # w2 j$ ?4 d3 E SysFreeString(topicStr);: S+ T; U# f6 Z+ w- _
SysFreeString(itemStr); ' p- D8 v8 j6 m6 L+ Y( U: M! M SysFreeString(valueStr);- {# u% l ]. A4 A: O7 y
# O o7 h6 W7 ]+ q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???7 R8 ^7 Q' ? E& B! M: M3 {
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????) [& c: b5 [" `0 Q6 i
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3 j+ s( {3 y: F% ?" o7 t& ?2.这是request的程序 3 s( ^% L' q9 F9 K l// Request a value from Extend9 i+ s4 t0 ?1 z( ~8 C* S
//; g" q" S& c( k$ c$ U8 z2 {; w
// Initialize the variant that will hold the BSTR. Set the variant's5 ~: i( i2 ^9 m5 o8 G+ |5 i
// type flag to indicate the fact that this variant holds a BSTR. Place the8 O7 i9 k" ? Y7 m3 ]5 J
// BSTR into the variant structure. % v1 b: }1 j7 [9 C, `+ W$ B3 v, M3 a3 k- }+ h/ x$ F B
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' b, p! g4 B$ H0 o5 [2 ~* A
" a" a- V, {; r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : d) E8 J/ p" R1 d VariantInit(&requestVariant[0]); ; l6 |1 t5 ^7 W" ? requestVariant[0].vt = VT_BSTR;5 N( E% i. k* y
requestVariant[0].bstrVal = itemStr; " I: l) `: G& D+ q s- u " O; i3 G: f: T topicStr = SysAllocString((WCHAR *) L"system");* G. K1 U& f. \" T- F1 a ?
VariantInit(&requestVariant[1]); 3 a2 X4 D: S3 p7 u t$ | requestVariant[1].vt = VT_BSTR; ' ?+ E: ^ D) O6 E" u$ C requestVariant[1].bstrVal = topicStr; 4 \- a9 c3 v; G8 W; J* n$ [2 ] 2 o6 C/ o' a0 h1 _7 [6 q5 b// Set the DISPPARAMS structure that holds the variant. * a6 I* o) n+ R! t3 D6 Q& Z# K1 d' I/ l8 n, U# q
dp2.rgvarg = requestVariant;& h: m- t f9 ~, v) @( b
dp2.cArgs = 2;2 y9 N. O. y% Q$ B
dp2.rgdispidNamedArgs = NULL;5 y. p; e; g. Z( \( b @
dp2.cNamedArgs = 0;6 S0 U) i0 n) {* U+ B
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var.vt = VT_EMPTY; ) m$ X5 G) D$ k }) x6 E: r; D+ f* D, T5 o
// Call IDispatch::Invoke() 1 i7 s, R# d% z1 H( m) c% }, s0 J; P/ }" R* S
hr = m_pDisp->Invoke( ; Z1 Q6 m- j1 h/ b4 d4 V requestID, ) W" W- |# l1 @$ o IID_NULL,6 X0 ^+ J6 C* m$ Y+ Z c+ k7 c
LOCALE_SYSTEM_DEFAULT, - _' n+ c: Q3 I" E DISPATCH_METHOD, 1 T8 ]2 v' v9 Z! Z& {' V- h' p &dp2, % a5 _# N( R0 u# }; f% S &var, ?8 U6 i8 J' x' R* M! _6 {# N
&ei,% \7 v1 `6 s& I( G: F# J
&uiErr);* M7 i0 l% b* c+ b
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SysFreeString(topicStr); 7 _! e7 Q, W% e. g SysFreeString(itemStr);7 j' c9 y& T, G; S2 m
请问该程序是获得extend里面的哪个值?1 F) g! Z |: D1 F# V: P
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????