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:2 W0 S& c) H2 x% v
Name = (WCHAR *) L"Poke";# `( b7 V2 `# Z% Y% l$ T
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hr = m_pDisp->GetIDsOfNames (4 D5 X$ |% S. k% I7 y4 n
IID_NULL, // reserved4 j) w( N r. @
&Name, // Array of names to get IDs for * {- O- g1 D. I0 M' e 1, // # of names in the array * X6 v* W0 `4 b+ R$ }2 R LOCALE_SYSTEM_DEFAULT, // System locale4 h/ h: E! {; w$ S. t8 s
&pokeID); // Array of IDs to fill on output1 O3 U+ h8 `8 v
. \) C0 g6 i% L2 \. ]1 ` if (hr) 6 N( Z4 U# G: ]) d3 g* c2 k' x { * B1 t; F/ b8 v- F MessageBox ("Get Poke Unsuccessful");$ p+ O3 j! ~0 x# y
return; 1 q0 N6 M- V# `% A } 3 x- e0 X0 r T- ` 7 U, E. V! g2 o/ D7 ]( r0 D/**************************传递数据给extend**************************************/$ f; z8 n3 K1 P+ X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , [2 R6 T6 y" i$ {" w' w / i* v# }0 Y7 y9 q: H5 G5 p X
valueStr = SysAllocString((WCHAR *) L"1232"); 5 n# u2 Q. D$ J VariantInit(&pokeVariant[0]); & Z, `; N) I2 U' I2 E8 D. ~7 K) ?
pokeVariant[0].vt = VT_BSTR;5 B0 F$ ~% V7 D5 q
pokeVariant[0].bstrVal = valueStr; E6 X" T o; N% U5 E" \ z* Q9 o l U' B1 S' c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / o) H! {+ a, K( q% k9 V VariantInit(&pokeVariant[1]); $ L+ N, s# C1 j8 |# ^6 r
pokeVariant[1].vt = VT_BSTR; 6 N, i5 }7 s) O. E: T* Y; ~9 _ pokeVariant[1].bstrVal = itemStr;, T8 p( Y, R( S& p3 Z* F" @
8 z2 g( y6 @" i# D8 ]3 P topicStr = SysAllocString((WCHAR *) L"system"); " W' g% b8 Y1 O VariantInit(&pokeVariant[2]); 0 T# F3 l) u. E0 n7 @ _2 ]* k
pokeVariant[2].vt = VT_BSTR; 9 k. i! ~. W* A6 M8 ~( o pokeVariant[2].bstrVal = topicStr; , s7 r7 }3 ^% c3 w7 ]/ y 7 A0 [6 I( G( U6 e$ g' O// Set the DISPPARAMS structure that holds the variant., A' q. K* A+ w+ e0 e$ G0 L
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dp.rgvarg = pokeVariant; 1 Y4 d1 B2 M3 D' a dp.cArgs = 3;, H) d5 Q2 e4 G. R& w
dp.rgdispidNamedArgs = NULL;$ e( z0 v9 V; b. q; w( @
dp.cNamedArgs = 0;( U0 l7 H& e6 ^$ e4 ~6 L& x
2 y! k( f1 `( e9 |$ F) v& ]// Call IDispatch::Invoke()% N1 y! O6 v1 r3 f2 p
7 y' u4 T% H& W/ r+ x: k# g: f hr = m_pDisp->Invoke( 3 h. p6 L2 p6 m5 j2 B9 h pokeID, . h8 Y9 t+ f' S* q$ `2 i9 i IID_NULL,; a6 D* [, F% X; m
LOCALE_SYSTEM_DEFAULT,% Y5 ~) c& R& _, [
DISPATCH_METHOD, ! J! X( V1 N% J &dp, `% }/ }3 e1 ~! `5 R9 Y; i6 [2 |5 _, |
NULL,4 p1 k) U- A, B, B+ \9 i9 [( v
&ei, Q+ {5 K; I4 i
&uiErr); ; Q. O- ]# j( K0 ?; c& {! o# ] - s$ o( o5 E2 _3 M5 w$ a SysFreeString(topicStr); : g% ^. |+ [; S SysFreeString(itemStr);' v2 @% q& L2 l3 ]) Q5 X
SysFreeString(valueStr);0 _$ r9 l- l9 d
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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???' ^' v* k6 P# H
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???? 1 ^$ T+ G+ S7 b$ _( A a4 a( i 9 q. u* z9 B# P, X N4 U8 [8 V# K9 |: W2 t6 _: F! Q2 B, U$ u# j
2.这是request的程序 ( U1 T) A% K& }$ M2 `// Request a value from Extend ; ^3 W- F7 _, k// . j8 z" O: J- K// Initialize the variant that will hold the BSTR. Set the variant's* y7 j+ F* l* I2 v
// type flag to indicate the fact that this variant holds a BSTR. Place the ! E' K9 x" G) H% f* o8 G- I// BSTR into the variant structure. 9 X$ I5 C9 W# {8 R2 {, @( {! [: R* ~' o
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 m t# g) H) i ' G) C; s! Y* \$ }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' h# R N7 @9 P( h: b
VariantInit(&requestVariant[0]); / P& F1 c" R( @1 s requestVariant[0].vt = VT_BSTR; . l! ~' {& b& F, } requestVariant[0].bstrVal = itemStr; ( V7 p" `% S& f# p0 v% o8 n& R% b" o6 |- S% Y; c k- v0 Q8 {
topicStr = SysAllocString((WCHAR *) L"system");0 f3 p5 N1 H1 j. S) t- K. y! F7 y) L
VariantInit(&requestVariant[1]); + y4 ?* d- N/ w: O* [& s2 P
requestVariant[1].vt = VT_BSTR;& F, h& E1 m4 L
requestVariant[1].bstrVal = topicStr;7 a" _+ E" p1 n" D. i/ `! a
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// Set the DISPPARAMS structure that holds the variant.) t% W6 c! p' P- I# F
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dp2.rgvarg = requestVariant;, k( U" o3 b6 f; o$ ~$ f: B1 w ]
dp2.cArgs = 2;- Y) r, }/ _% W+ f1 p# i
dp2.rgdispidNamedArgs = NULL;9 ]( f6 t% Z7 K1 R1 C
dp2.cNamedArgs = 0; ; O" n! I3 a7 a$ |! a4 D* g2 U, f5 K7 d% Q9 G D2 P
var.vt = VT_EMPTY; 5 A- q# M- z7 M* D/ @ 6 d. o, e+ p1 D// Call IDispatch::Invoke(). M/ o! l% n5 f5 W8 _0 U4 p
, n/ M" o9 n p" ^+ i+ {, ?+ D4 g; O9 t: Y hr = m_pDisp->Invoke(; @" K" K. [( n6 d& l! A
requestID, ! p/ F& D. s& G9 i, [ IID_NULL,6 F" ~0 Q- c3 g) U. e g5 T. }1 [4 {
LOCALE_SYSTEM_DEFAULT,2 ]# V/ x5 g4 M9 `+ w3 M
DISPATCH_METHOD,4 w X' j$ L+ D" w' W
&dp2,0 K; M2 T2 \/ G2 E1 X* h
&var, ' ^0 D: v/ Z' D# m7 B: M &ei,5 T! r) y( W7 c$ b4 C& j) A
&uiErr);3 E& P& M1 \* R