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:$ b3 |( D+ W5 D2 s
Name = (WCHAR *) L"Poke";" u1 J3 U# J" l6 d+ p% X* w
2 R# d- l& }8 ? b5 Y0 d$ T q d0 Z hr = m_pDisp->GetIDsOfNames ( 3 Z/ q h7 l# n' K IID_NULL, // reserved# ~' b& x" W7 F1 X" W$ C& v0 v
&Name, // Array of names to get IDs for 9 ] B* ]" }7 `6 g( }0 [- }; z" d 1, // # of names in the array9 ~& H; \* C8 U. @1 r$ A
LOCALE_SYSTEM_DEFAULT, // System locale / U7 ?8 ~) ?9 z" A &pokeID); // Array of IDs to fill on output % r: `8 i' T$ U 0 u- F( V; I2 f& R9 m if (hr) ( j6 v/ L( F6 ]9 ?1 m& X { 0 @4 {- T! `* ?/ m2 a MessageBox ("Get Poke Unsuccessful"); 6 a5 G& j- Q+ ` return;8 H, Z0 w( I ^5 C; w
} # U1 ?4 @# o3 G- t " e U* Y( X! u6 F, E5 H/**************************传递数据给extend**************************************/- k" d7 ~, m4 J8 v, k6 m ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & ] x$ C. U/ p3 g, ^4 ~6 W# R 3 M! p3 n1 X1 q5 p9 `, H4 M
valueStr = SysAllocString((WCHAR *) L"1232");6 h) Y: U# y- ~7 g/ H- n
VariantInit(&pokeVariant[0]); $ s j4 T2 Z5 l1 E- ]7 V8 u
pokeVariant[0].vt = VT_BSTR; t; r5 @( y8 w pokeVariant[0].bstrVal = valueStr; 7 u4 M: t" H2 v$ ]8 d - O/ d1 q" d4 L1 q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # l% O2 |6 ]) h& k5 v VariantInit(&pokeVariant[1]); . K6 P) z$ ^1 p5 t( h8 }5 m pokeVariant[1].vt = VT_BSTR;$ s$ f# W: ^$ J
pokeVariant[1].bstrVal = itemStr; 5 {$ ^/ D/ D( ]4 v/ a3 C 4 I: G2 F# z6 Z/ }8 U8 \4 \5 z1 Z topicStr = SysAllocString((WCHAR *) L"system");+ C0 e9 S& }/ q6 K- f
VariantInit(&pokeVariant[2]); 5 a. P' t- d6 i3 T pokeVariant[2].vt = VT_BSTR; / i3 j9 y$ K0 Z0 b# } pokeVariant[2].bstrVal = topicStr; ' v; V! a) a- o0 F. x / t3 O' i6 ], h: ]// Set the DISPPARAMS structure that holds the variant. ! R/ O; I1 K% J: Z8 l J, J# k' }4 _) ^9 A5 l7 M
dp.rgvarg = pokeVariant; 0 @" s* J" M0 |# x$ V- b( W dp.cArgs = 3;; J# S+ o7 b9 P+ e; I2 e
dp.rgdispidNamedArgs = NULL; / G9 ]% l. x; \! y: V8 x0 c6 G dp.cNamedArgs = 0; ! ]+ h& n7 [) A) K/ o, n( O 6 x( c0 ^+ t, ]( D8 P. ]// Call IDispatch::Invoke() ! A- G r0 Z( j7 q . M0 p9 n w" n D2 }* J6 G hr = m_pDisp->Invoke( ' \/ n& \1 H% P ^; }! a1 q pokeID,3 Z. }5 `+ S$ t" U" A
IID_NULL, - b# G7 S9 A3 T, m) c3 T$ L) ]" @ LOCALE_SYSTEM_DEFAULT, " j- g5 P! g5 E- \ DISPATCH_METHOD,5 k& l6 F9 g2 l3 h. k) ]/ j+ y6 P
&dp, 5 _7 x1 S% T3 F, E2 q+ T4 d" [ NULL, 8 T. ?7 e8 A, J) g0 @+ @ &ei,9 e% r% V5 f2 t5 }/ m. f
&uiErr);. h4 M3 y, {4 U2 ~$ J, O, C2 ^3 W
) X4 |+ @- X8 l SysFreeString(topicStr);( I. \2 E% C( f- z
SysFreeString(itemStr);' s! X' y6 e/ I& E
SysFreeString(valueStr); - B5 x S3 t; G& f p 0 i# K$ r5 r2 f V6 q( x. N, q6 f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??? ( J2 `. w1 m, [. C4 v4 T4 t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????# w o3 b; P% a% j9 @2 h `
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2.这是request的程序 1 A. u: J, X1 G// Request a value from Extend# P" P# R w! K) ]+ C
// " J5 E. x4 W* U7 |2 S2 I// Initialize the variant that will hold the BSTR. Set the variant's0 {! ?# n/ g% W7 t" g
// type flag to indicate the fact that this variant holds a BSTR. Place the0 g' P( f4 g* v
// BSTR into the variant structure. % v: w9 r' ?" s+ ?5 i3 O$ P' n& G; M; e/ V: S) J2 c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 C; F5 ]* ?# S2 O& t% B . ^7 T$ r; J: ^; h+ @, `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # W* `; K: v3 `* n VariantInit(&requestVariant[0]); - V0 E0 O" s+ B1 p+ \9 H4 N. x, a) }
requestVariant[0].vt = VT_BSTR;+ ~/ B+ n' }: S7 w6 i# k
requestVariant[0].bstrVal = itemStr; $ _& i( {1 ?, K( D# I6 G; R ; P* m7 q* A7 {5 a% q7 d topicStr = SysAllocString((WCHAR *) L"system"); + ~8 d2 O7 [, [8 G: @ VariantInit(&requestVariant[1]); ; T" p( N; u+ Y& H) q( I8 D" ?% I
requestVariant[1].vt = VT_BSTR; 3 T- F" H* ], h& {( r- k! u \ requestVariant[1].bstrVal = topicStr;+ X, ^) u- T. k% Q W+ b7 t
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// Set the DISPPARAMS structure that holds the variant., d9 i: m5 s& F X
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dp2.rgvarg = requestVariant; + e) F. D2 k4 ]! J1 {2 ? dp2.cArgs = 2;8 F( c$ l8 q% p2 y( S3 ?1 o: j
dp2.rgdispidNamedArgs = NULL;3 f, d+ P* }2 M. D
dp2.cNamedArgs = 0;6 Q# d2 r( Y' X& @; ]& j
3 S5 W$ I% t) N) H var.vt = VT_EMPTY; . S' R* Q3 z! g& m6 L8 l% r' y' y+ l7 m0 C6 h5 B5 p2 J
// Call IDispatch::Invoke()4 W5 w- s6 }6 N' C
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hr = m_pDisp->Invoke( % j, ]6 O4 {. c: h. v0 R' F requestID, 6 j3 c9 A4 N2 Q* }/ C IID_NULL, ) ^% r5 L! Z9 i3 J6 J7 ]; [8 E LOCALE_SYSTEM_DEFAULT, 6 }+ G; S! k& X2 k DISPATCH_METHOD, 2 E. ^' ?4 v7 B+ `0 U! V3 Y &dp2, ) t# ^8 J$ s: U' y* x7 J- w &var,) X7 L/ P% G0 P4 w7 `& K
&ei,) c A" Z W/ Z
&uiErr);8 J; [5 d' e5 z8 i
& z& }8 w! z* G9 A" r0 s) t; D SysFreeString(topicStr); 7 k* o# l f# I0 T+ H$ l$ N$ _ SysFreeString(itemStr);: D6 _; Y; m/ E& }
请问该程序是获得extend里面的哪个值?! A3 m. U+ G r! j
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????