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: 4 ?0 C0 d& q: t, B% g4 M6 ]$ iName = (WCHAR *) L"Poke";# i x5 l" e. K" v8 Y: S
9 W i1 J l; m# }2 R
hr = m_pDisp->GetIDsOfNames ( $ \( U4 a/ G1 Y8 E w/ G IID_NULL, // reserved: e" Z6 |2 @/ n+ S- b
&Name, // Array of names to get IDs for & U8 M/ b$ g8 `. E 1, // # of names in the array1 |: v6 p3 B8 Z
LOCALE_SYSTEM_DEFAULT, // System locale " j1 e2 ]6 m. x# g% U: e &pokeID); // Array of IDs to fill on output . u4 s7 G1 {4 q& r `1 p* g# A1 |6 |/ [/ v if (hr)/ g# I, X. ^2 I& ?6 b9 z
{ ) v% N% m+ g, @: O3 S) V$ f MessageBox ("Get Poke Unsuccessful"); 4 Z& H# e0 X0 i* o: g% U return; 4 Q* `6 E6 u/ P6 | }5 L" v d0 k% U" n+ p
* ]! R" u. X8 l$ m" n: q# }
/**************************传递数据给extend**************************************/& f$ t' p3 H( w5 Q4 S% M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 Y* p! `: @1 {0 t) n! Z9 B 0 K) A* r) w: P: R valueStr = SysAllocString((WCHAR *) L"1232");. o I3 p: Z7 y
VariantInit(&pokeVariant[0]); `4 |1 o; J5 q% r pokeVariant[0].vt = VT_BSTR; - {* f. k. Q8 }2 ~1 W2 E+ o pokeVariant[0].bstrVal = valueStr; 7 W+ a& F! G p, ]1 o& y 4 h. H! q& s T- Q) d- S+ | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 e2 f" k: Y0 @# W5 k VariantInit(&pokeVariant[1]); # ?5 a% ~4 E; a' @7 E3 {+ f pokeVariant[1].vt = VT_BSTR; 3 ] M E2 K; d. t& B* s pokeVariant[1].bstrVal = itemStr;, v; g7 n2 ~/ S" w1 p/ |% R
0 D! M$ g+ g7 w" s" m topicStr = SysAllocString((WCHAR *) L"system");" h% x+ ~9 I* `4 J4 s
VariantInit(&pokeVariant[2]); 9 ^" s/ O, X$ ^$ b: M& S, Y6 H1 X: O
pokeVariant[2].vt = VT_BSTR; 2 E4 Z7 O+ p K1 v pokeVariant[2].bstrVal = topicStr;( w1 c( [. n3 x5 k( J' s3 Q5 C
8 S9 o) z+ R) H9 m& F0 w// Set the DISPPARAMS structure that holds the variant. , D. X% L+ G; r' O& r/ Y1 ^! g0 m% o8 n" @8 l4 a/ K" V* D5 y
dp.rgvarg = pokeVariant; G" U& S. z) J. ^ dp.cArgs = 3; ) I- X1 [8 {6 {* |1 X8 C dp.rgdispidNamedArgs = NULL; 5 x. O4 Q5 Y7 \8 ]4 u3 u3 | dp.cNamedArgs = 0;- c: j& v4 v+ ?; [
; d1 S h: G$ J! S# e* p// Call IDispatch::Invoke()7 w" i% a E( `. n
- N. o4 ?- N& i& E+ N0 v/ k
hr = m_pDisp->Invoke(& w8 Y4 O3 d6 \% ~+ S
pokeID,4 u& X) ?, D1 R2 n* c `
IID_NULL," S, k/ l: p9 h0 D6 W
LOCALE_SYSTEM_DEFAULT,, D8 A1 D; l2 W |* g
DISPATCH_METHOD,4 G* G! N2 L9 `6 [1 N9 @
&dp, 6 F; T1 N* }3 n) } NULL,1 D0 I9 W9 A" W; C
&ei,/ C( m2 ~) S" V6 _2 _3 r
&uiErr);: a3 @# r4 V9 t M# `5 n# ?7 E) s
7 C- n! t+ G# D7 K
SysFreeString(topicStr);7 j1 v% A$ [/ j4 \$ D4 L# p
SysFreeString(itemStr); " w# ^2 f; i# e, e; B SysFreeString(valueStr); ) B) z# C! }. F9 Q% w9 k1 P% N3 K/ f/ M ) `9 z9 v: e# G" ^) ^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 M3 e6 |+ x2 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????6 q& L1 v6 r7 U$ ^! m* I9 T/ o
0 B. e6 H" o2 e* S, g, p2 \2 x c& W; g. M+ E( F
2.这是request的程序8 v( S0 U; ^, k. N, t
// Request a value from Extend % l5 ~; v$ P0 ^2 V//; m0 ]) A- S, V- x; o. _6 o# W
// Initialize the variant that will hold the BSTR. Set the variant's v* w5 V4 e8 g1 L* d& \7 G// type flag to indicate the fact that this variant holds a BSTR. Place the7 u U, J0 B b, G+ [; Y
// BSTR into the variant structure. 6 ^ {( W# x& N+ F: n' c8 N7 G; t: R' Z, V
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 J9 z5 V( r3 M4 h 2 |$ P1 j4 _- z$ w; v1 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # h! k1 ^2 t- j. R! V VariantInit(&requestVariant[0]); 1 L+ m, @& g( I/ \ requestVariant[0].vt = VT_BSTR;5 ~5 S* N, u$ `
requestVariant[0].bstrVal = itemStr;8 X8 h6 ^. ^0 [: [8 j% h" h+ b
. [" q E4 W, w) O$ h topicStr = SysAllocString((WCHAR *) L"system"); ^* ~6 G; a' k% T VariantInit(&requestVariant[1]); 5 @6 o- \7 c0 z requestVariant[1].vt = VT_BSTR; 1 D; r+ V; d% S5 U/ d- d requestVariant[1].bstrVal = topicStr;) |# O) J; |# c {7 [# v! M5 Y
- Q2 V! g, e% J! ]& L% M5 t( _// Set the DISPPARAMS structure that holds the variant.0 T9 J/ W& A" H, {
- K9 y: B7 z, T2 |# `
dp2.rgvarg = requestVariant;8 M- H/ n J0 K' V9 m* V
dp2.cArgs = 2; 6 c0 e8 K# u' { dp2.rgdispidNamedArgs = NULL;8 {$ E8 `( o7 A: a# H" m: i: @
dp2.cNamedArgs = 0;1 y! ^; ^& ?: N# L2 O
2 q" ^. s1 V7 A' \; ^- ] var.vt = VT_EMPTY; # t4 I0 w) _$ c4 L4 a # k. x3 w1 d3 f1 Q6 {+ s9 H! E* x0 S// Call IDispatch::Invoke()9 Z0 v* a) m4 R: J4 J( D" m
& ]- B$ m5 V3 E% [3 Y. ^ hr = m_pDisp->Invoke( ) ?) x* B1 v" u6 U e: |! b, P requestID,! Z9 k: z' d% V
IID_NULL, 7 W5 ?8 x G5 N( ` }1 Z LOCALE_SYSTEM_DEFAULT, 7 }9 i! F0 R3 b DISPATCH_METHOD,9 o. ^8 I( p9 i8 ?/ `
&dp2,7 X! S d3 S8 H {: a7 R
&var, - m5 `. I/ W) m0 x0 o3 h &ei, , N3 [3 E1 k/ M1 T% j, K &uiErr);% a; x% x+ q& _' w( _