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 a7 L: y; ^+ qName = (WCHAR *) L"Poke"; 4 t8 q, y8 X+ y1 P0 m( f4 m( _# p- P 3 z2 O) e( b* h
hr = m_pDisp->GetIDsOfNames (' t, z3 y, }' k+ e" V% c
IID_NULL, // reserved5 c9 B( `, j8 g7 R, n
&Name, // Array of names to get IDs for4 U9 e/ x9 j& e4 w9 e& {
1, // # of names in the array 7 \5 y5 E3 a P e4 i* f$ Z LOCALE_SYSTEM_DEFAULT, // System locale 3 I- e* M1 s0 A0 z/ _* Y9 R &pokeID); // Array of IDs to fill on output - x; X% Q8 m0 f) N 9 `' X- L' R0 s! C
if (hr) 4 L# p. H; n6 z, x9 I- K7 \2 U { + @9 Z1 m* F. {$ a2 {( z0 M MessageBox ("Get Poke Unsuccessful");. F+ v# `5 x" h) _9 D6 G2 E# X8 i5 d
return; " E' g% P9 x6 ] } + `; M+ e; n9 c$ X, w) E6 \; a0 ^) |' \% [7 x. s2 x
/**************************传递数据给extend**************************************/8 u, m0 V9 u/ L l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, c" w' b0 }3 @/ X
# e- \! M4 z F, R3 r M valueStr = SysAllocString((WCHAR *) L"1232"); 0 s7 G- \; M [ VariantInit(&pokeVariant[0]); : C* J; R) R: S8 V6 d* K% E
pokeVariant[0].vt = VT_BSTR; : M9 B9 p' |( @8 }; o$ O pokeVariant[0].bstrVal = valueStr;% ~1 |6 g6 j6 Z( t- @- l- i% E2 B
. k" f8 X# f3 S, D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 l" A' @2 r+ {* y+ A3 N
VariantInit(&pokeVariant[1]); ( h" M. s1 G5 c k, p9 L; p. X pokeVariant[1].vt = VT_BSTR; # o1 [/ I' D5 c4 T7 b5 \ U' Y# }3 w pokeVariant[1].bstrVal = itemStr;, n% z5 j( t( E& g' Q
8 v- V3 F' T0 ^ z2 n$ O topicStr = SysAllocString((WCHAR *) L"system"); 5 j# e: G0 `( M3 S* B) b% n VariantInit(&pokeVariant[2]); 3 x6 [2 ]# |1 w9 S$ @( S pokeVariant[2].vt = VT_BSTR;2 n0 P6 |5 \8 ^- k( x& u* z
pokeVariant[2].bstrVal = topicStr;; D6 m) l; w. f& t m* K0 v
6 n- o. I7 a) b1 _, w
// Set the DISPPARAMS structure that holds the variant.+ l3 r; @0 b+ `' F
* ^/ t& ~1 M/ ]% { dp.rgvarg = pokeVariant; 0 m- ]3 u- }7 }4 [- g8 f dp.cArgs = 3; # y" R+ f0 e. M7 @ dp.rgdispidNamedArgs = NULL;# y1 U( g1 q8 F7 W
dp.cNamedArgs = 0;3 u+ X5 |9 K! `! X' U- ^
# I& D, d7 z. o& J1 J# G9 P( w$ v. E
// Call IDispatch::Invoke()6 z0 {& V7 H" |, |
5 G4 D# y# `2 f% k& ?4 j# m
hr = m_pDisp->Invoke( - ?" E+ }' e4 f. H( q pokeID,1 @) }4 A9 l5 w# N& s" @
IID_NULL, ! d/ h; H9 \# l8 j! R: X9 f LOCALE_SYSTEM_DEFAULT,$ f5 E" a. z+ \2 ~; O& R1 S# U9 x; y3 ^
DISPATCH_METHOD,* s' j h* u5 L% g3 `
&dp, % U% h4 p. L7 a4 D NULL,1 G; |. j1 L( V# N( X
&ei, ( q8 C* J1 j- s" a7 a4 } &uiErr);3 W& K9 P A8 u
( j" @' N( Q2 V: z, r X2 f
SysFreeString(topicStr);1 x' P- C! U# A* ? c
SysFreeString(itemStr);" l) H" U7 U5 e/ R) w' D
SysFreeString(valueStr);; w2 y; S { b; y$ N$ ]5 Y# I
& g, E X6 s$ l2 ?0 D- }3 E; p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??? . \, X/ s) H1 i( B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???? * e/ }$ v- M3 P ( O( R1 @% L0 v+ u- w) z, e- A9 u - [6 ], M) J, F1 S3 Z% B& ~/ G. ?. `2.这是request的程序 6 R6 r2 R- y# Z2 W( P1 B// Request a value from Extend + f. r- [; x' T" f! ]//1 f6 i3 r( `) t1 x' j, }3 O( Z
// Initialize the variant that will hold the BSTR. Set the variant's ( f: @7 E) b6 g# }! ~// type flag to indicate the fact that this variant holds a BSTR. Place the ; s$ D1 Q, w- @: O$ q// BSTR into the variant structure.( G$ D4 `8 A& z3 B+ R8 w+ g# c
* k* \( w2 A/ n& ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ N; O3 o* e- Q/ j% z7 G* R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' g* o0 C: \/ _' f! y4 V" S VariantInit(&requestVariant[0]); 6 y4 T9 ~. q+ S% d7 } requestVariant[0].vt = VT_BSTR; / e( b3 a' E T requestVariant[0].bstrVal = itemStr;& `+ R2 P. G: J5 C: R6 S6 x
) j: X5 T7 b* k topicStr = SysAllocString((WCHAR *) L"system"); 4 U$ l' f. o, W( s C8 U VariantInit(&requestVariant[1]); % j6 }) f1 }8 o$ m5 t+ g- q" `0 A requestVariant[1].vt = VT_BSTR; & K3 A5 ]3 Q3 d( A% C2 S8 V0 m$ z requestVariant[1].bstrVal = topicStr; . Y7 Q0 @6 i4 z5 ~/ H/ b( b# Z9 a M; @& p% P6 b7 k, ~
// Set the DISPPARAMS structure that holds the variant.1 n" X6 z6 R { T/ j* }& n
* E0 h1 B& f* e! f
dp2.rgvarg = requestVariant; 5 Y0 Z2 f/ T# G X dp2.cArgs = 2; 3 ]# g, V+ W7 l7 b8 A dp2.rgdispidNamedArgs = NULL;7 P) M2 S2 M4 Z. C: [
dp2.cNamedArgs = 0; V6 O5 Z: x/ A2 p, h* o& ]; A