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:6 L# L' y. l4 ^2 j# U& I$ e
Name = (WCHAR *) L"Poke";3 ^- I$ Q7 o. k# T1 v
- I$ U9 ?; L1 M hr = m_pDisp->GetIDsOfNames ( , T/ z" w! a3 e1 O( E" e5 Z- N IID_NULL, // reserved n9 y, ]; A& P P' B &Name, // Array of names to get IDs for 7 Y; L6 B7 |. Z, v, l! C 1, // # of names in the array 5 ?7 u8 G: y; z- s LOCALE_SYSTEM_DEFAULT, // System locale . ~3 {1 W0 e- g9 m &pokeID); // Array of IDs to fill on output$ E2 @2 S- e- G ]- {5 T: Z5 I
' H& c3 A2 K7 {1 e) _0 W. \- [5 p1 { if (hr) ?, t' K$ M& v: ~0 i. p ~# H( k {7 I y. s, X% Y A4 L
MessageBox ("Get Poke Unsuccessful");8 L( t8 n/ E! e4 @& O
return; . A/ p7 u1 I* P# _ g0 { } , I* V$ I/ ]$ ^! f7 g9 E" q" \ 9 @" z7 `0 E, Q! @- y; k1 |" Z9 t/**************************传递数据给extend**************************************/) H6 l, n0 W- `, U- [2 M. P+ Q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ J2 h& @7 `- W ; T: n$ W K) o
valueStr = SysAllocString((WCHAR *) L"1232"); - Y7 m- K9 G7 @3 ~' C1 P" X2 ? VariantInit(&pokeVariant[0]); 9 ]9 y0 T8 ?, a2 u$ m
pokeVariant[0].vt = VT_BSTR; ]% ^" C) D6 R. j, T pokeVariant[0].bstrVal = valueStr;: V" L- Q% D) v1 y+ M. r
+ S( @$ e/ S4 c5 f1 n. D/ K1 ~% g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 I/ u" F& _3 q/ {# n
VariantInit(&pokeVariant[1]); ! @) |. ~1 m s/ N
pokeVariant[1].vt = VT_BSTR;: K& T$ ^& u4 l$ {; p$ L7 i2 N
pokeVariant[1].bstrVal = itemStr;4 G% T% ?& Y5 O- W% A/ v5 d
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topicStr = SysAllocString((WCHAR *) L"system");5 S( E' E$ C1 v3 v( N, x# T7 \
VariantInit(&pokeVariant[2]); / c% b$ G9 i. F7 z8 y; Y- x" a pokeVariant[2].vt = VT_BSTR; 4 W& p/ j6 B8 M! ~6 {6 G pokeVariant[2].bstrVal = topicStr;% j, g) s' m5 r. I4 n$ {
0 D+ e5 A5 x$ ^' `8 ^# ]! H1 c$ y// Set the DISPPARAMS structure that holds the variant.* \" H9 `8 g" p! S: S. K$ ?# K
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dp.rgvarg = pokeVariant;/ C1 @0 ~( F# Q7 F9 K
dp.cArgs = 3; , z/ T( ~; {+ ^8 N# |3 v# y dp.rgdispidNamedArgs = NULL;+ F. C! l8 F* x( l
dp.cNamedArgs = 0;7 l4 q( Q& |" p! M( X. O0 H8 Z
8 c6 K% h1 N8 w9 s. m& l) x2 b hr = m_pDisp->Invoke(- G. G2 Y1 Z. {3 H. T& I9 V
pokeID,: n( L1 ^- J O
IID_NULL, * i# h) @. C* b, P( L LOCALE_SYSTEM_DEFAULT, / C$ i" i9 |3 w; H% s6 M7 J5 M) b, Y DISPATCH_METHOD,4 |' J5 u9 G+ W' U3 f& W8 A7 P7 w
&dp,9 k/ Y/ S) W- e
NULL, 1 s" Z! X% a5 J* `; X! J &ei,: @8 c# Y6 y7 f# j: K
&uiErr);' z! D. n; r8 }9 R3 Q& L
) B' G# _- v$ r3 y! b. \" `% H! {. z SysFreeString(topicStr); G5 `1 [4 h* i7 W9 R
SysFreeString(itemStr);% _: X5 R3 T4 B
SysFreeString(valueStr);9 e; r8 A8 a. @2 `% C. j1 k( M# X
' k/ }4 q Z- T# 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??? ' Z' O& {* X3 ^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????; A7 p% f% R' ]! l
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2.这是request的程序, R/ u% F0 v6 Q: @
// Request a value from Extend3 e+ S. r! i4 e& R
// ( Y" L/ Q) l/ l// Initialize the variant that will hold the BSTR. Set the variant's 7 h' E* G! _7 U- _// type flag to indicate the fact that this variant holds a BSTR. Place the ' X! Y2 t6 @6 \// BSTR into the variant structure. ! ^7 Z, s7 Y1 w/ S: y! ]8 e, A+ u/ u " f X$ U0 x& z/ P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 x9 |* f5 ]+ t$ U- c6 I# m# P . G) Y0 l# _6 f4 w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - @3 Q- Y; H* L8 ? V4 M VariantInit(&requestVariant[0]); 6 c& M Q! s9 F7 v$ Q4 o: b
requestVariant[0].vt = VT_BSTR;0 W o6 u9 ~) Q0 e
requestVariant[0].bstrVal = itemStr;! C& D) _" Y# V$ B
$ e* N0 ?8 [4 L' Q! c5 p topicStr = SysAllocString((WCHAR *) L"system");* o+ V4 Q+ @; X A7 @
VariantInit(&requestVariant[1]); # U |, H6 G* S+ }" [
requestVariant[1].vt = VT_BSTR; 1 x. ~* K: `' r; Q# J requestVariant[1].bstrVal = topicStr;- `$ B. `8 o9 Y1 b/ N6 G
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// Set the DISPPARAMS structure that holds the variant. , r/ w* V1 I( |! W( s3 n7 o+ a* y" t1 l- ^/ [6 L0 w; g
dp2.rgvarg = requestVariant; 8 d" J5 v4 }5 B3 n dp2.cArgs = 2; 7 f6 o7 A8 m& f/ K7 X6 ] dp2.rgdispidNamedArgs = NULL;' r" x# d9 Q7 F* D4 f
dp2.cNamedArgs = 0; , s) P# F Y* L ( L( T$ r/ U- e# j/ y" d/ Z; \8 Q/ n var.vt = VT_EMPTY; J2 [, A2 `- E$ y0 a ! v9 X8 t8 |- E+ g8 ~. J; Z// Call IDispatch::Invoke()3 e9 Z8 \7 H# [1 `+ K( ~
; W7 |' N* j1 `0 I2 L! r4 ?! U hr = m_pDisp->Invoke(9 i4 ^& X! g0 i, d# R! u' P. B1 W8 l
requestID,2 @5 B9 g% }4 R* x; G' ]
IID_NULL,4 T8 G$ j% i3 {; c/ |- k6 s$ ] k
LOCALE_SYSTEM_DEFAULT," m, y. G/ D! I0 l1 p7 o, z
DISPATCH_METHOD, 8 s' W! `# D1 L! K6 C- b &dp2, : v; h& }0 c+ G& a: p& E &var, : T/ v% h- z2 v$ w &ei,! d- E% \: L. V. d1 I
&uiErr);4 n% v# t7 b6 w/ ?
" j8 w8 \* R' b4 D SysFreeString(topicStr);. i; J- ]9 h7 D( A. J! x
SysFreeString(itemStr);: {& l7 n4 |, i" H
请问该程序是获得extend里面的哪个值? % i( s) S; ^9 n" ?9 M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????