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:; X; ~: l; }7 o5 B& c" k3 z
Name = (WCHAR *) L"Poke"; - r' b9 w% Q/ F2 E 9 j& Z3 Z! t. _2 { r
hr = m_pDisp->GetIDsOfNames (' d* I* b8 I$ ]5 E/ B6 _
IID_NULL, // reserved 4 r2 o& F& X" c. q; a &Name, // Array of names to get IDs for3 @' r1 |$ V* B
1, // # of names in the array ! G5 c v' h/ \7 G9 U+ d c ]' t" h LOCALE_SYSTEM_DEFAULT, // System locale; X# J7 r5 K# Y7 C; Z5 f0 G
&pokeID); // Array of IDs to fill on output1 l: O9 k0 _ {9 Y) m: e+ \
4 w- ~7 O4 v: T& L1 R5 J x if (hr)0 C. y+ f% ?# t. S
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MessageBox ("Get Poke Unsuccessful"); # f% t4 a" ^" ]& p4 u return;1 P' \ j" {0 {7 \" |8 T: p
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/**************************传递数据给extend**************************************/2 @9 d2 i; x# g; F; \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % o3 a) f" [$ y" g$ j 6 @4 v s* x+ w4 P+ T% U& v
valueStr = SysAllocString((WCHAR *) L"1232");9 z7 C3 F8 U2 l
VariantInit(&pokeVariant[0]); Q% H0 w7 G/ e2 f* D7 |
pokeVariant[0].vt = VT_BSTR;6 z) _# B# u: L8 ]
pokeVariant[0].bstrVal = valueStr;$ d1 K" U, i( S9 W2 e5 T4 D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 k! Z+ b2 [% b* Q0 b- i VariantInit(&pokeVariant[1]); J* L& r7 r; z' O {5 g( d pokeVariant[1].vt = VT_BSTR;& d* f/ ]2 p! C" N8 n+ Q. U
pokeVariant[1].bstrVal = itemStr; % c4 ` R0 ~6 |2 V6 m% M $ x O" \4 K3 s( U6 X+ a topicStr = SysAllocString((WCHAR *) L"system"); 4 | D: C- d& n' D/ l ?6 K VariantInit(&pokeVariant[2]); ! K1 t5 T+ E4 b) o+ I0 O4 B: J! C
pokeVariant[2].vt = VT_BSTR; $ X2 p c; r& J3 U7 T$ v5 F pokeVariant[2].bstrVal = topicStr; 2 z- t8 F! q0 F1 U0 R# F ( i" v+ U7 x D( P// Set the DISPPARAMS structure that holds the variant.+ V" b9 h$ ?& [4 b+ Y- v5 c7 l; o
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dp.rgvarg = pokeVariant;3 u' b8 [' x$ L" t, p2 G5 B2 D
dp.cArgs = 3;: ^8 Y3 U+ p# }8 {4 C) d/ C
dp.rgdispidNamedArgs = NULL;0 I1 C- H4 @" T5 X) V0 ^8 ~
dp.cNamedArgs = 0; 2 h0 m: @9 J; c3 ~7 ` X# C $ h6 d# F" a7 d: O$ P l0 P// Call IDispatch::Invoke() & K' g; X; }! g0 z4 D- z ( `" f7 v0 ]1 ^8 Y hr = m_pDisp->Invoke(1 D, s; ^, y& W8 g
pokeID, ; L. g$ C! @) i0 h6 |6 N; k IID_NULL, . q6 h& A$ D4 Y9 R# P) O; Y LOCALE_SYSTEM_DEFAULT, 3 d! L9 ^8 ]/ } m( C, Y DISPATCH_METHOD,0 |+ f& Q4 U% s+ e
&dp, , h7 L( G8 p& ~6 p* p NULL, ; D4 S# j4 [7 F; W/ W9 h0 {8 L; c &ei," t8 M) m5 j9 A& R8 p8 w& u" y
&uiErr); 6 e; w- P7 ]; w' `2 {4 I) X8 u& _ \( Y- y4 {/ ^+ D
SysFreeString(topicStr);0 v7 Q# @ r% j
SysFreeString(itemStr);$ M* }5 A, _1 E
SysFreeString(valueStr); / K9 n- u% i, E; K) ]7 z % V2 \5 b1 d' X! q$ 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??? : Q/ t# Q i1 {% r6 k+ V' S( {" z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 W3 ]; c. J5 H4 q# D
$ {% _ s4 u6 J6 ~' x 2 A- R% W# S. F2.这是request的程序7 F6 Y$ ^( j/ c0 ?7 d
// Request a value from Extend% l/ c( \4 [8 k9 ~- ?. I) f
//5 M. q7 m8 v! F, k1 x- K
// Initialize the variant that will hold the BSTR. Set the variant's ' @+ m. A, ^' s6 F% m// type flag to indicate the fact that this variant holds a BSTR. Place the , Q, r9 l! J7 Q5 l// BSTR into the variant structure.5 v3 L1 u5 v' |, X, L ^
9 `2 W* L0 {8 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( d7 r Q3 E& t5 X& |: B" a