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: 6 V1 M: Z8 w) A/ _. H0 VName = (WCHAR *) L"Poke";' U% K- s4 h2 o& j. E. x2 F( {/ t
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hr = m_pDisp->GetIDsOfNames (- o0 t3 S$ J# ~! i, o
IID_NULL, // reserved) [" J* S; A& U5 F5 W8 Y5 @ Y
&Name, // Array of names to get IDs for; s& _2 ~* h% l/ l8 h3 q
1, // # of names in the array , [) K) a; B0 k+ o LOCALE_SYSTEM_DEFAULT, // System locale$ K* d& P; }0 M& N: c: r' d) f |
&pokeID); // Array of IDs to fill on output4 E, R3 S4 }1 E; o! ^0 x: e; \
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if (hr) - y5 r6 u& k" U3 x: K# ^* l {2 K, X* E) ^# t3 b/ k8 G
MessageBox ("Get Poke Unsuccessful");+ l" {" x9 @) f; n8 u
return; 3 B4 v6 ]2 U- Z4 q6 V) ~1 R* K+ y9 v }0 T Z& V* ^- L" i1 f# o
; O) \! @, ~2 j8 p7 d/**************************传递数据给extend**************************************/4 N4 W& J, y5 r% j3 }/ u! ^0 H% D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! t3 P3 r+ u* N L
8 J l6 y% F& ]; l( f% { valueStr = SysAllocString((WCHAR *) L"1232"); 5 B, g: _+ j+ C* j VariantInit(&pokeVariant[0]); 3 R- A E5 r! c% _6 O+ {
pokeVariant[0].vt = VT_BSTR; % X; p. P" d' _$ _) }) Y pokeVariant[0].bstrVal = valueStr; ! a$ V. Q6 A7 B& o- }' X0 o3 ]* p. E% l, D% T( w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 ~4 @0 r. k; P7 Q5 S k/ b
VariantInit(&pokeVariant[1]); j0 d! S- ^: R0 Z pokeVariant[1].vt = VT_BSTR; 6 |! `# {* x2 J# D1 c; I1 v0 e3 R; | pokeVariant[1].bstrVal = itemStr;% [; F; X; ?& d2 c! p0 ^$ C# X
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topicStr = SysAllocString((WCHAR *) L"system");: I: `( m% _( x
VariantInit(&pokeVariant[2]); ) r7 w/ f+ s* p
pokeVariant[2].vt = VT_BSTR; + o8 h! N; P, r! K" h4 O! y pokeVariant[2].bstrVal = topicStr; 4 Q0 p; ]% J6 B m2 D. w1 x0 O5 D
// Set the DISPPARAMS structure that holds the variant.2 i8 V }& t; A* R$ N2 ^5 Q, e( u
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dp.rgvarg = pokeVariant;8 c5 j/ }+ H7 s7 }/ ?
dp.cArgs = 3; ) f( i% @& T& ^, |# [) l' c dp.rgdispidNamedArgs = NULL;1 m( w$ [' l M
dp.cNamedArgs = 0;- e9 }% {3 P. h- y5 a* Z
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// Call IDispatch::Invoke()5 z6 F4 D8 u1 c$ l* M
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hr = m_pDisp->Invoke(! Z* e$ E$ L# i( ~0 h! u6 j. G: @1 T! I
pokeID, / s7 F" `0 h2 f7 J2 Y IID_NULL, % k( c2 w) u% B4 a; p: W, c+ u LOCALE_SYSTEM_DEFAULT, * o( H* w9 L2 i8 b+ j# O6 Q w DISPATCH_METHOD, k6 A$ D! |" J$ w
&dp, , z# F1 T3 F$ k; m+ }8 F7 ?5 N NULL,, I6 b; _+ D5 r* I1 ~6 r
&ei, 9 ]" o( q4 }6 p &uiErr);2 [8 o+ T( v" F0 ^1 @
1 B9 p% ]4 k5 k: l7 f* [ SysFreeString(topicStr);' {7 c& J" o& D% V0 v- N6 m
SysFreeString(itemStr); 8 {- e0 a2 B7 `1 A SysFreeString(valueStr);+ N! L. B" v3 K5 V- V6 c; h! z
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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??? $ h/ U1 e1 j4 a$ _$ G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????4 k1 U% L. c7 n9 U
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) {) i6 m& h% M, \4 [2.这是request的程序1 _& T. X& N! s" `
// Request a value from Extend/ ~( J! b& m( z2 ?# p/ ~) s# H
//. \/ v( o- E( }, p
// Initialize the variant that will hold the BSTR. Set the variant's7 a% C# G i5 P/ |0 @
// type flag to indicate the fact that this variant holds a BSTR. Place the: v8 ~6 i2 Q; r, ~1 o5 n" a3 G: m
// BSTR into the variant structure.! u& ^8 _9 U6 j) W# g- Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- W; u; j( v) J8 n
* V! o! K. d6 ~6 D3 R; Y7 h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % X) I" G0 _' j/ G4 i VariantInit(&requestVariant[0]); % u u4 b6 ^, i
requestVariant[0].vt = VT_BSTR; 9 M7 k8 C) i6 W3 Q requestVariant[0].bstrVal = itemStr; 6 ^6 {2 t( q) c% m. h8 e7 M% w" A+ [7 ~# y" T
topicStr = SysAllocString((WCHAR *) L"system"); : ~: o# Z% R6 D- u9 P1 x: k VariantInit(&requestVariant[1]); % R% B* S7 v! d7 f C7 h% b. I requestVariant[1].vt = VT_BSTR;4 L3 \" o9 A9 u) S8 C- S' h0 z6 x
requestVariant[1].bstrVal = topicStr;8 S t/ W: E+ ^& M' R' L0 e
! ^& m1 `8 |# ]1 V; _, b$ Q// Set the DISPPARAMS structure that holds the variant., v: X2 Z7 r2 o5 k2 E9 k
# z- T9 L& v! S& B. ` U* @. F! b: s dp2.rgvarg = requestVariant;/ X: d1 V% F2 l6 f
dp2.cArgs = 2;1 u+ k* a- c0 ^) Z! j9 E, s2 [
dp2.rgdispidNamedArgs = NULL;5 A. k* n) x5 F1 }
dp2.cNamedArgs = 0;) F' z; \' f9 U3 G