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: 1 N7 g3 i( y) PName = (WCHAR *) L"Poke";/ ]3 _( U, C+ |" U& Z" H
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hr = m_pDisp->GetIDsOfNames ( / `: b8 y6 s" i IID_NULL, // reserved + F5 @" m9 A- O' b &Name, // Array of names to get IDs for1 R4 s! r! d" T) q3 `1 ^
1, // # of names in the array% D' o+ \! Q- q) W* T' L
LOCALE_SYSTEM_DEFAULT, // System locale ; v" y: ?' T7 ]1 v &pokeID); // Array of IDs to fill on output A- h# H9 P+ k
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if (hr)1 G6 ?; P# A% _( m: }( ?
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MessageBox ("Get Poke Unsuccessful");/ g! W$ d* e _9 f' ^ \8 r- b' u
return;5 Z2 L9 F/ L+ _: k% o
} 3 i. G7 E' r( B# g ; Y# n" h [0 ]! ^# L/ C/**************************传递数据给extend**************************************/ 6 V) C6 X# \: F" T5 b# Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " ~8 B$ f8 s6 d4 d1 \- R ' e6 ]* f, A0 |. j% A/ j/ Z% g4 L
valueStr = SysAllocString((WCHAR *) L"1232"); . N, a4 k) ^& v h# D3 j) z VariantInit(&pokeVariant[0]); 5 B# e& Z$ d/ E
pokeVariant[0].vt = VT_BSTR;! q0 t/ { `( d1 x9 y
pokeVariant[0].bstrVal = valueStr;) n* S* `+ r3 [
; R& R) X: x5 m7 F. p: g9 v6 f3 c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 B( y/ L( L6 a2 p VariantInit(&pokeVariant[1]); & y1 `( o7 A4 v( E& o. S pokeVariant[1].vt = VT_BSTR;5 t, ~/ N$ e( m5 h4 \8 l) w
pokeVariant[1].bstrVal = itemStr; . M& x; M) z5 n! U% g: K! z* @( a % x% L9 T x) [' a topicStr = SysAllocString((WCHAR *) L"system");- o0 j9 ]' T+ M; _3 [8 e# n
VariantInit(&pokeVariant[2]); 1 ~' r* ?6 o W) G2 i- z3 m4 S8 X
pokeVariant[2].vt = VT_BSTR; 3 V" c4 e. e: a! s6 l2 _0 { pokeVariant[2].bstrVal = topicStr; " k; h& [3 Q8 z9 {6 @) ^/ n' y/ y/ L) F7 f1 C0 N/ k( F) O8 Y' R. V# v
// Set the DISPPARAMS structure that holds the variant.- U+ P' q4 P* V: c- D
) s* G" Z: @1 J& S2 H9 N1 W) X) P! r dp.rgvarg = pokeVariant;4 C& o) `6 T$ \9 U. k" G
dp.cArgs = 3; . L3 h& @3 Q4 K# R" B+ ~4 H/ C dp.rgdispidNamedArgs = NULL; + X5 {& u! W$ }( t dp.cNamedArgs = 0;! r! R# q8 ]" q+ f- @- U
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// Call IDispatch::Invoke() + e2 y" F# F* E5 A ; ~) ^7 v+ @* E$ v' l% J hr = m_pDisp->Invoke(- a2 ]- V/ k% L
pokeID, 2 K: G( l; ?6 V5 S IID_NULL,1 \1 O b: O2 b0 {) g4 T
LOCALE_SYSTEM_DEFAULT,; Q( i4 W- m5 \
DISPATCH_METHOD, $ ^2 L6 {! ^( Y5 D &dp, , q- |) v! u5 \! m3 r5 F NULL,8 a& Q, p: B6 z& M; y
&ei, 8 l" ~+ Y" X3 g: } &uiErr);1 G" A, a2 ?0 D" S: v
7 n' t7 k/ U5 Q SysFreeString(topicStr); ( V( |: V/ t6 L5 r) @) F/ n SysFreeString(itemStr); ; f, H; O: G9 ~2 v3 F' V SysFreeString(valueStr); : e9 x% s) d1 o0 r5 I; y* x3 v0 h/ 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???! P& U% ~/ b$ Z0 g* X
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????, ~: ]7 J/ }7 O) b+ _1 y* ^
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& ]! w7 r$ k% e2.这是request的程序( N% X5 K& h: I8 @% U% H5 d; E9 s
// Request a value from Extend ) K+ A% U5 }5 T2 g1 \//) f/ K7 V0 t2 e( s$ U
// Initialize the variant that will hold the BSTR. Set the variant's) d, }! T1 s0 ]- M8 a! w# j9 E
// type flag to indicate the fact that this variant holds a BSTR. Place the) \; |% y+ |+ [9 Y" w2 o! b2 h
// BSTR into the variant structure. ( T( D; g2 _4 F+ |! K7 Q! F) y% i( [5 A( Z; r: ]9 Y. \. B) v
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& C5 B2 Y1 M& O
: L% V" s- X% h7 V" z6 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); B# Z9 Y) {! v. x) n7 V
VariantInit(&requestVariant[0]); ' c% Y1 s/ d/ D. M s# V) r, D requestVariant[0].vt = VT_BSTR; - o e4 ^& T; G+ }5 x) o) ]+ V" ] requestVariant[0].bstrVal = itemStr; 3 L: v' [0 U0 }4 e* |9 L% {0 S1 M/ n1 V% p
topicStr = SysAllocString((WCHAR *) L"system"); x* d3 n% W+ v" `# S A" h0 l VariantInit(&requestVariant[1]); 7 c d/ W% c/ u5 ~ A+ a3 b+ X, R requestVariant[1].vt = VT_BSTR;0 l! a6 x" w5 S
requestVariant[1].bstrVal = topicStr;7 u3 E: R# K6 P; X }+ S
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// Set the DISPPARAMS structure that holds the variant. 4 Q1 D: M5 G4 s ( A# e6 P- K. B7 n& E o dp2.rgvarg = requestVariant; 5 C5 n* y$ ~! I, H dp2.cArgs = 2; - Y8 S" C9 [! d8 Y2 l dp2.rgdispidNamedArgs = NULL;) L% n, T9 y) P1 a
dp2.cNamedArgs = 0; # W" B8 z/ Y3 {* R# O$ c- n- i9 u1 M4 Y6 Y, U) v0 Y1 X
var.vt = VT_EMPTY;6 _( |5 b7 n! d( J' p5 M7 _