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:8 [. l+ \% w) g
Name = (WCHAR *) L"Poke";) j1 I3 x) |8 J4 [" e
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hr = m_pDisp->GetIDsOfNames (" E N+ @+ u e- O+ ~' m' L
IID_NULL, // reserved' f6 ?+ q4 s8 D m1 N
&Name, // Array of names to get IDs for# F8 C5 |' A3 q" a+ D
1, // # of names in the array G6 P! Y2 [7 v) j, D5 J, {
LOCALE_SYSTEM_DEFAULT, // System locale$ F" n# Z- L& S/ Y0 i
&pokeID); // Array of IDs to fill on output % l& |: ]5 D# h* I' N# h! H0 q: e+ D 5 V2 R& m& e' b. s y, z- f8 i
if (hr) ) J, Z% @$ T; E5 X {* d$ }9 U: o+ X9 ^1 Q1 c
MessageBox ("Get Poke Unsuccessful"); % O7 W& L3 e* X4 f return; 8 w9 ]" ~# m3 s; s! A9 ^& K2 G g } ?7 _ E. W1 P) d, {4 G: w8 f Q0 C* d# N2 U9 @; i) i
/**************************传递数据给extend**************************************/4 E6 _5 C( }- F) v L2 @
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' a9 \. J! e- F, z$ t, ]! F) P
4 t2 n4 Y) S# e* d valueStr = SysAllocString((WCHAR *) L"1232");5 d( N% A2 R# d
VariantInit(&pokeVariant[0]); , R; J/ G1 O; q; t
pokeVariant[0].vt = VT_BSTR; 4 t" M3 V6 r1 l# b pokeVariant[0].bstrVal = valueStr;) M: h1 ^/ k: \) r5 l
; @# n ~7 l0 |3 M" k( L9 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 L8 G2 d0 g3 \: P$ ^$ v VariantInit(&pokeVariant[1]); : f! n7 k( f0 K& C; @' B
pokeVariant[1].vt = VT_BSTR; 3 l3 p' |# ~: L/ R4 v pokeVariant[1].bstrVal = itemStr;" `7 `/ h& @) |. R3 ]# j1 j
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topicStr = SysAllocString((WCHAR *) L"system"); 6 D+ b. [- F6 r' Z$ U! B0 G: a VariantInit(&pokeVariant[2]); # Q- j4 O* k2 Y. C+ _ pokeVariant[2].vt = VT_BSTR;0 X2 e) K0 e8 f% E$ _6 j+ |, J
pokeVariant[2].bstrVal = topicStr; " L, H! x! `2 P# D T7 p+ v& J3 K; }7 @// Set the DISPPARAMS structure that holds the variant.0 I/ l* {" {+ S
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dp.rgvarg = pokeVariant;. }) F/ w. e1 V3 I
dp.cArgs = 3; - z/ u7 m5 G* J1 L" p" O0 Q" J dp.rgdispidNamedArgs = NULL; " W$ A$ b. X Z; X$ E, D dp.cNamedArgs = 0; 5 Z2 w% s* N {$ c1 H' t* h! @4 e, S4 d4 ^4 v" ~9 m
// Call IDispatch::Invoke()' f+ s7 P2 L# t4 @( L2 j
6 l' ]4 F h( b- n hr = m_pDisp->Invoke(* \5 \. b S8 ?" ^
pokeID,; M- j' I$ R1 f4 M2 U; v9 [; r+ c9 u# C
IID_NULL,* _2 F/ K& z8 u7 e" B
LOCALE_SYSTEM_DEFAULT,$ {2 d/ S4 ]% Q8 R/ j
DISPATCH_METHOD,: M+ l$ P: T) f: y. z4 Q5 C( [
&dp, 4 G6 D2 w8 c* S+ n' m4 C/ ~9 E NULL, + a+ }, X$ m4 \7 c% d &ei,$ D3 v0 C Q+ r* B
&uiErr);% T( G/ w& G c. n) v/ U
5 @! Y) A9 a/ ^8 F# L& u SysFreeString(topicStr); ! F2 }0 X* L9 G SysFreeString(itemStr);! ]% \! P6 b* _1 t* G: Z
SysFreeString(valueStr); 7 ?3 F( `( O, Q7 J' w% N# G, U, O1 ~) L: q
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??? 7 z; |* i: z' N0 O( Q2 L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????. N, Y& b4 m* @% K
! F+ n- v9 f$ M/ S ' Q0 C( z$ E2 l2.这是request的程序 , b+ R( p& E/ z, E- D% h// Request a value from Extend ! O4 R- z3 \; H# W) D1 o Y// 1 d9 [! ?9 q: c4 a# [3 v7 c7 c// Initialize the variant that will hold the BSTR. Set the variant's # w) _# p" P; t* \! Q4 X: M// type flag to indicate the fact that this variant holds a BSTR. Place the ) z( n# H4 ?. d) k+ q// BSTR into the variant structure.) N! I* M3 N# {1 Z; r
% ?2 y6 L* o; |3 W6 u6 U3 \! U2 U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 T2 T5 _6 [5 L 6 U& [" _- }1 n/ o* T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# A" M) ?9 k5 X6 ^" {0 o
VariantInit(&requestVariant[0]); P, r- W1 q, ]5 @& w9 N requestVariant[0].vt = VT_BSTR;2 l7 r( V6 X7 o
requestVariant[0].bstrVal = itemStr; ; A' K# J5 Y6 r! Y9 x: Y9 J+ ?( e l! v
topicStr = SysAllocString((WCHAR *) L"system");# v- Y: i9 c) [- O) K5 V1 Y
VariantInit(&requestVariant[1]); h4 {8 ^. p8 b- L requestVariant[1].vt = VT_BSTR; 0 K' o- ^7 b" p/ |. I! q: |7 ?3 E requestVariant[1].bstrVal = topicStr; 8 [7 V" Z- f }* P$ d; _+ @6 R: P4 V 9 {, M0 H+ d l, w; f// Set the DISPPARAMS structure that holds the variant.% B+ v0 {* _2 u" N: S; Z
3 r6 z8 F" z6 U |& y, h" S9 T2 R dp2.rgvarg = requestVariant; , T6 y6 L# P# r# M/ ~( k( U$ J6 T dp2.cArgs = 2; ! D5 F4 e( P6 z dp2.rgdispidNamedArgs = NULL;, `1 F0 X- K. C
dp2.cNamedArgs = 0; 2 F" i1 M$ M r9 F0 e; k3 W , A3 ^. E+ O0 v+ I, h- P var.vt = VT_EMPTY;; S# G3 c0 ^8 s! d, x1 z