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:2 {9 y# `" U/ B1 P) K. p/ e
Name = (WCHAR *) L"Poke";7 |7 I' G } {& E# U) W
6 Q" H" O- A; k" I4 T4 L hr = m_pDisp->GetIDsOfNames (; I4 q% C/ S; x! a, M
IID_NULL, // reserved ) u' `; |6 u2 M+ s1 x, E) { &Name, // Array of names to get IDs for- O$ \; N7 q8 Q8 _5 M" h: Q% d; o
1, // # of names in the array* h- M Z, J5 I$ Z, m g6 e4 f
LOCALE_SYSTEM_DEFAULT, // System locale( s& K8 W. `+ h3 }/ x
&pokeID); // Array of IDs to fill on output ) ]. `3 k& V) n/ k. h$ S. @ 4 X0 [. ]5 E4 ?7 a/ z
if (hr): s" [! w+ j6 @1 L1 {
{ 8 [* N3 J0 ^+ j MessageBox ("Get Poke Unsuccessful");8 a4 V, L. K9 y0 @ S
return;5 ?! [4 m8 k7 | N* a
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1 Q3 A: v: n5 B0 U, ]/**************************传递数据给extend**************************************/2 w& |0 [3 A0 `* H: r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 z7 t" E7 ^- d6 u+ i
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valueStr = SysAllocString((WCHAR *) L"1232"); % b. p2 @. S( ]7 [; w% D- ] VariantInit(&pokeVariant[0]); 8 |' E9 [ ]% M6 F pokeVariant[0].vt = VT_BSTR;# W% F9 [5 w, V' c- u
pokeVariant[0].bstrVal = valueStr; & P3 f0 N5 E4 W, E$ ]; q ) ~. _: d; l. t' I. W- a& ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 n6 Z! W1 i5 g9 o VariantInit(&pokeVariant[1]); - [6 T+ G @7 O% U3 s) F+ m4 [! d
pokeVariant[1].vt = VT_BSTR; ( L5 w8 T8 I: b$ R pokeVariant[1].bstrVal = itemStr; 3 f: W8 @0 ]1 T7 M4 l7 X7 |- [% a" f: p7 S/ z9 g, x: E. e! ?
topicStr = SysAllocString((WCHAR *) L"system");5 D( W% u2 h: J) E1 S
VariantInit(&pokeVariant[2]); / N+ M9 H8 \: N, |
pokeVariant[2].vt = VT_BSTR; ' S6 ?1 b- u6 o5 K/ l/ v9 }# U pokeVariant[2].bstrVal = topicStr; % O6 F/ k. i* Q5 d0 X# o4 ^, |9 x8 ~2 {$ U; `6 ?: ]1 z
// Set the DISPPARAMS structure that holds the variant.2 g$ s o) N6 Q7 y# P5 {
2 E+ D5 a! V6 z' U1 i4 f dp.rgvarg = pokeVariant; . l: |: s5 Y. e* o# c" r dp.cArgs = 3; / q- `7 y- O- M) ~. G dp.rgdispidNamedArgs = NULL;" J: u0 G. v& J1 ~3 B G9 q
dp.cNamedArgs = 0;$ n `. W9 C" f
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// Call IDispatch::Invoke() 7 S" s5 d4 g& F, n# c 7 U6 a5 K6 w- f: [ hr = m_pDisp->Invoke( 6 K0 ^, n1 s; _. ]: L8 ]' _ pokeID,1 p0 B# ]# x/ I
IID_NULL,5 s+ [" f5 m! t# ~4 L" e
LOCALE_SYSTEM_DEFAULT,# _, W a3 w( w/ g3 c) S8 F2 R
DISPATCH_METHOD,8 P) w" F9 T! c4 V! [( I2 ~* E
&dp, % r4 ? C) U) o. G. g NULL, t, u/ l4 i% J2 c- a7 P
&ei,& I0 U& P$ N9 g" }5 X7 { x
&uiErr); 9 @/ W7 n; o8 K" F$ z" d ' S2 p) [- N) S3 Y SysFreeString(topicStr); " v" A1 O$ `- [8 } SysFreeString(itemStr); : d7 [0 }0 u" _; D3 {. z SysFreeString(valueStr);+ z0 m, h7 Y9 Z& ^
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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??? 5 E( F. \2 T2 r+ U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???? 0 R* I9 Q+ @9 q# M& I( c# P) e 2 R/ Y: l, |7 m& U- P 4 t/ m" P/ n! _ f% k( O! j2.这是request的程序7 N* y* z% u. N, [. u! {
// Request a value from Extend! u# ~8 |5 ^% F0 |9 `( K+ {* M
//. N9 S6 R5 K, x) k; d
// Initialize the variant that will hold the BSTR. Set the variant's2 J; ?( X6 m6 l6 c2 t
// type flag to indicate the fact that this variant holds a BSTR. Place the0 o" z% y8 S( O4 t3 |+ e
// BSTR into the variant structure. ; |4 A0 x! _4 ~4 w* {0 A& p$ R- P" p7 P1 M- g9 w, o. o. m
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' d6 l; b% t& G8 {2 f0 \ s + m0 t! {3 a7 M9 V- [
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 h) D' s1 `; E7 B1 X
VariantInit(&requestVariant[0]); " n4 e7 `3 V( ?" [/ v requestVariant[0].vt = VT_BSTR; 6 V8 O' `% `4 G5 ~7 k requestVariant[0].bstrVal = itemStr; ( n/ F/ x2 f4 A. ~ @5 k : z m6 \3 Z6 H0 v: p7 T4 t9 g topicStr = SysAllocString((WCHAR *) L"system");. Q" |/ Z- ?* z' S3 h
VariantInit(&requestVariant[1]); : T7 ?! O6 }+ u" R! I9 @ requestVariant[1].vt = VT_BSTR;: n: E( m( ]4 V
requestVariant[1].bstrVal = topicStr; 7 m. B1 L8 I- A, o& C4 O* G& ~: T: u# ~# r$ _
// Set the DISPPARAMS structure that holds the variant.9 i, R4 N+ G" @' {! I' g5 p$ y
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dp2.rgvarg = requestVariant; + }! A N+ w% ]3 x" Y1 K dp2.cArgs = 2;+ G( t( K: h# G. I3 U2 C8 O
dp2.rgdispidNamedArgs = NULL;+ o' n0 Q9 X! z; k5 x
dp2.cNamedArgs = 0; 1 r8 z! R3 }! s6 r . ^; g: s: x' ~' E5 O7 P- i) t var.vt = VT_EMPTY;4 l" C0 v0 i9 B# l7 r
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// Call IDispatch::Invoke() # l" h1 z7 J9 O4 l( Y4 e1 f r% A* ], h4 w' ]' N5 E7 ~8 w- I
hr = m_pDisp->Invoke(4 z( J' ^$ j: b) m
requestID, 4 F6 O! t7 e4 O& e% z( Y9 v2 N, b IID_NULL,$ P5 B) g* n4 h* T$ j
LOCALE_SYSTEM_DEFAULT,; B* d1 b, T& z; x( W
DISPATCH_METHOD,# ?# h+ C& m. g: {3 Z& R/ W
&dp2, J- J! F2 G* b, {' T( \9 a
&var,! @' c& N2 X1 ~$ h/ \8 R
&ei,2 U& j- @+ n8 [4 b* ~, V
&uiErr); ; c( D, z2 F6 _7 u+ P- U( k' c. S% c1 w& M2 r) R
SysFreeString(topicStr);8 x2 R! z+ |& p0 E5 q' [* q
SysFreeString(itemStr); 4 `$ q1 f F8 f' v4 _ ^; {3 _请问该程序是获得extend里面的哪个值?9 |' J( ]$ i$ I. @3 L/ B
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????