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: / R0 `2 e$ i7 E- vName = (WCHAR *) L"Poke";& |6 Y. |. Y3 R" z. N
8 C V+ }; t; R* D hr = m_pDisp->GetIDsOfNames ( 6 ^+ P+ x+ n U$ } IID_NULL, // reserved* M" O: q5 o6 {6 O* J/ h: w2 |
&Name, // Array of names to get IDs for / G2 s b# F7 `1 K* k# B- d 1, // # of names in the array & a% Y. r. p Z% H/ Z LOCALE_SYSTEM_DEFAULT, // System locale $ t0 i/ g. ?- n# E+ M &pokeID); // Array of IDs to fill on output, h8 f$ b7 W& u- }1 r: T
# d. @( e: i* i. @/ y& x" e if (hr) 0 {6 Z' } [0 j. h P6 Y {! b+ g- C' m" m! D3 @
MessageBox ("Get Poke Unsuccessful");0 \: x2 n' q3 A- Q; x$ }
return;% @, E: H( U" o4 Q: I; `& `0 d
} 4 ?+ l" B; v4 R: u6 e3 k( y $ g" \9 ^6 R: r& ], g D' `/**************************传递数据给extend**************************************/0 f# Y) P9 d. r) d: `) b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - y! F! |; w# u- }. }8 m F$ M% i" G/ K) d7 C, `% d
valueStr = SysAllocString((WCHAR *) L"1232");0 S. m1 ]2 Z. p5 q9 h7 {+ u
VariantInit(&pokeVariant[0]); ' x7 g9 N' A2 l X pokeVariant[0].vt = VT_BSTR; 5 ?( ]5 S* u9 l5 m" N pokeVariant[0].bstrVal = valueStr;1 m2 s6 H$ {' Y! m" `# L: U& S: ?
2 |8 J5 T% t) y6 k. S' B- z# K$ v topicStr = SysAllocString((WCHAR *) L"system"); 9 M1 j5 o0 Q! w+ _ VariantInit(&pokeVariant[2]); 8 O c2 Z$ f9 v6 [ pokeVariant[2].vt = VT_BSTR; & v O. {1 V: Q# ?: e pokeVariant[2].bstrVal = topicStr;+ I A2 I% `6 e9 @& d# O. J8 ]+ _
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// Set the DISPPARAMS structure that holds the variant. 7 U3 D0 J4 M: ]+ Y3 v$ U' `- ]+ K7 y8 B2 [" z- B
dp.rgvarg = pokeVariant;) F- n* ` L3 T% D2 N/ {
dp.cArgs = 3;) j; u6 A: Y' q' T# {; Y8 F
dp.rgdispidNamedArgs = NULL;5 [" V4 q* D% ?9 O$ ?2 k0 L
dp.cNamedArgs = 0;3 w% W! J, E+ I2 ` ~
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// Call IDispatch::Invoke()' u& b F7 `9 D. ~. O, m
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hr = m_pDisp->Invoke( ' X8 N1 [ X5 B. d Q pokeID, 9 j" n+ d& W4 a* o6 A IID_NULL,7 ^8 p8 ^0 l; H: O3 N1 {
LOCALE_SYSTEM_DEFAULT,6 k- T8 J( g/ P1 I ^: W2 \
DISPATCH_METHOD,! W( `, r) n( H3 T4 h
&dp,7 r6 T- `; S" Q1 y) B) u
NULL, $ p8 c+ a; g$ V {6 x Z& n" r &ei,2 s; x1 E1 t I3 e) Y3 l% l
&uiErr); 0 V, W7 \6 w+ a; I , g! {" k2 B+ w SysFreeString(topicStr); 4 Y1 C1 a; M. z4 C SysFreeString(itemStr);3 A9 H; ], C0 P2 C$ [) ^) ^
SysFreeString(valueStr);" Y1 S' c2 ~+ T( k
) P7 Z& |1 h# F1 I! Z# z+ m0 Z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???' F j" V( T: F* v# ^& F4 f
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???? & y, H4 O9 U0 p" { F5 {0 P3 K, r5 T, l9 x0 g: f
. K3 M& }) b) M, M6 Y2.这是request的程序* K# R3 F1 b) s. h( S0 u. l
// Request a value from Extend1 r0 w) O& _6 z. o- a
// ! o9 |& i, |; j3 X// Initialize the variant that will hold the BSTR. Set the variant's 6 Y5 k v6 `1 C3 ~// type flag to indicate the fact that this variant holds a BSTR. Place the: s9 ?5 Z% P. g5 M0 Y( g, u
// BSTR into the variant structure.2 |& T. t! E- S( z2 w
- I) V& S1 z* E; e' {6 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 l: ^. u1 n) L& v% O" Z0 R ( Q( N# B$ v2 x) h. t9 D* U( w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( P" ?- ]" A& Q0 l' J. B3 W2 n: j+ v VariantInit(&requestVariant[0]); - t A- F) ~* }5 l0 `3 g
requestVariant[0].vt = VT_BSTR; ; w$ J2 o* y, S- I3 Q% I, W- S; Z requestVariant[0].bstrVal = itemStr;* H2 A/ h. i9 ^
& s# o! p* y8 X. v topicStr = SysAllocString((WCHAR *) L"system");4 G8 y" U7 W; v5 S/ N8 v% {# r
VariantInit(&requestVariant[1]); 6 H _% e( x, E. R( ^7 G
requestVariant[1].vt = VT_BSTR;9 K; w% Z- G" C/ K; P* o
requestVariant[1].bstrVal = topicStr;3 A5 B% I/ p: u4 w- c+ |. c
9 K, U+ ]: E# M3 ?4 O// Set the DISPPARAMS structure that holds the variant.) V0 }: j7 U- T3 y( u, g