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: $ h( n# D; t) |8 y7 p* @Name = (WCHAR *) L"Poke"; ( d4 S8 h2 T1 A8 G) x0 i : Y, S8 _& b8 U. Y- S2 x, A hr = m_pDisp->GetIDsOfNames ( 8 w3 @; j% W2 `. P. F. h IID_NULL, // reserved $ T$ \/ H4 l& @8 k2 K &Name, // Array of names to get IDs for. O* M% e5 s( b h
1, // # of names in the array& o0 T) {, Y7 T* [2 j
LOCALE_SYSTEM_DEFAULT, // System locale) q- S' F' q5 e# w& t
&pokeID); // Array of IDs to fill on output 9 ]0 N2 I8 W0 ^/ m, P6 k/ a) | / X0 P/ Q4 ?" o if (hr)& E' U5 o( a) c6 c) A+ X
{ " ]0 F+ C! n. d) h; M MessageBox ("Get Poke Unsuccessful");' n: e7 n0 ~: n3 W
return; 7 f; s: A. d$ P( V }" O, l) Z/ k- H/ P8 ~
( r' B' g& E6 X) R/**************************传递数据给extend**************************************/ 2 X+ h L# {/ n$ Z8 ]/ R3 _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: Z, l7 u5 `9 B1 J o" G+ j% ]' ?
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valueStr = SysAllocString((WCHAR *) L"1232"); / J+ D, g: Y( a; W& s, ^' J; r VariantInit(&pokeVariant[0]); 0 l8 E2 `' @+ h2 U' G pokeVariant[0].vt = VT_BSTR;+ v/ o% q$ g d# g0 p! v
pokeVariant[0].bstrVal = valueStr; / [' s# u, x. ` e& _" S0 S. V& J" D3 u1 D* R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 X3 _) ~) g$ t" k+ H
VariantInit(&pokeVariant[1]); ! w Y R+ B' V/ {$ |$ Y- J& b( H' K u pokeVariant[1].vt = VT_BSTR; * P% q+ n. S( y pokeVariant[1].bstrVal = itemStr; * H e0 K3 q- f: S # ^6 A1 r- k" y- G# l+ F6 l topicStr = SysAllocString((WCHAR *) L"system");% i: |- R3 v, y$ a
VariantInit(&pokeVariant[2]); 6 E4 R0 p1 K8 ^& G9 u' y9 n- k( i
pokeVariant[2].vt = VT_BSTR;" y2 t L3 R$ S
pokeVariant[2].bstrVal = topicStr;' g5 D- a; x$ V+ B
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// Set the DISPPARAMS structure that holds the variant. R$ j u+ h5 X; _
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dp.rgvarg = pokeVariant; . y4 M* A0 ]3 m6 R+ W8 A dp.cArgs = 3; & r! K6 r3 R3 W dp.rgdispidNamedArgs = NULL; ' ]7 ^; o& U/ S0 r# O dp.cNamedArgs = 0;6 K7 S2 Q; K" X0 E$ J4 `* L
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// Call IDispatch::Invoke() 1 |, _# o% l5 @* U. Q4 I! o& E: ~+ B% H
hr = m_pDisp->Invoke(# g# P& t2 l1 P
pokeID, - H& ]3 i! J0 g2 D' Z# b IID_NULL, ) S( e2 v' v- [$ t1 u LOCALE_SYSTEM_DEFAULT,* |% b, b/ V% y' y# }, n
DISPATCH_METHOD, ' ?" p3 P4 K) Y8 \$ V &dp, d5 N1 i. d6 o1 Y! i NULL, 0 t& T5 e! F. G# F7 |0 ^0 ] &ei,3 h* G0 C# W: y8 M
&uiErr); 2 M' T- Q" d6 |0 O( | 1 y$ t" C+ r6 G SysFreeString(topicStr);* T& F0 c6 `9 j- Y. Z+ Z
SysFreeString(itemStr); ; b/ G- G$ v8 N+ ^0 |2 n SysFreeString(valueStr);# I0 j ~3 x& _" |1 k$ V
; a g* ^1 W5 H+ I* r/ H: C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??? 2 \7 A" G) c) {0 J2 i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????9 h9 V7 V+ z1 _+ d0 `
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2.这是request的程序 . Z, D" p& v$ f! ~ N// Request a value from Extend + e# q! l Z5 r; P2 ~//; s& T3 e! _( R; z9 d
// Initialize the variant that will hold the BSTR. Set the variant's 7 k+ a1 P, o; M. w// type flag to indicate the fact that this variant holds a BSTR. Place the# {! T) s% i9 G& R" D
// BSTR into the variant structure. 4 b/ d3 d* {; Y) h6 G 2 K0 T; x; ~3 X& c/ l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 n' a, x% }, O, G