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: + d& I0 b1 S* f9 l8 J3 h# T8 `Name = (WCHAR *) L"Poke"; , \, M; i3 A) e Q7 W# a T4 \9 Z0 R' Y3 J n
hr = m_pDisp->GetIDsOfNames (( n3 ^/ q: A# n7 w- j
IID_NULL, // reserved* ~6 T; [3 n5 B* p; e
&Name, // Array of names to get IDs for/ y+ p1 ]+ B8 F3 l$ l. V6 R/ b
1, // # of names in the array 3 {7 i7 h4 J2 ? X LOCALE_SYSTEM_DEFAULT, // System locale' Y* V; F. i9 a+ h# d
&pokeID); // Array of IDs to fill on output- H& ^* U5 ^* n' A
; G$ C6 e) T$ H n+ F if (hr) 7 K4 A, g6 g' A, P( } U { X2 s5 ~( _( q% F MessageBox ("Get Poke Unsuccessful"); & `: f/ p3 N, D3 h9 J3 P return;; _, y/ y; ~% p6 M- P
} ! N5 V [5 p4 a8 C& A, h) g! T D) n" e
/**************************传递数据给extend**************************************/. Z# D7 p! d, D# f# J6 _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! Q+ J% v$ S. E7 p; N
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valueStr = SysAllocString((WCHAR *) L"1232");# Q; Q# V7 Y5 K& ?% h
VariantInit(&pokeVariant[0]); 0 ]# m7 T. e6 K/ U* |" d' l pokeVariant[0].vt = VT_BSTR;. t% F! Z! b+ E" _9 [! @8 Y% |
pokeVariant[0].bstrVal = valueStr; % t2 @* b8 }: m8 A7 P0 D2 s, H }, \ y L8 r; q3 k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & H& N5 A# |7 U: n& B) T VariantInit(&pokeVariant[1]); " N/ l8 o/ E0 i9 g/ S4 @; _
pokeVariant[1].vt = VT_BSTR;4 m% R3 [ }! b8 X2 N& \7 L
pokeVariant[1].bstrVal = itemStr;8 x7 v. E; m8 k& D. |
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topicStr = SysAllocString((WCHAR *) L"system"); ! j8 @ v/ s* w; ]) X7 @- d9 d VariantInit(&pokeVariant[2]); 2 i T+ s' r, \+ F* k
pokeVariant[2].vt = VT_BSTR;! x$ ^6 f' Y$ A% d" S
pokeVariant[2].bstrVal = topicStr; & x. z [3 ?$ F" V D. p% J q ~+ o9 L9 x' \& }6 }
// Set the DISPPARAMS structure that holds the variant. , U4 i' _3 u/ S+ e' `9 W' U" S# W 9 s1 s: q$ s- Q) p dp.rgvarg = pokeVariant; M0 ~; Q3 f/ |) Q dp.cArgs = 3; + G: z8 R' P% h dp.rgdispidNamedArgs = NULL;" ]7 _2 ?4 W% p0 z( r0 x
dp.cNamedArgs = 0;# I) [2 \/ Q l# t: T# x
/ g" k% P4 v4 ^! z// Call IDispatch::Invoke() + p$ U2 `; ]( r! ^# v+ o6 }. t/ F; F1 E
hr = m_pDisp->Invoke( ; ?# e$ J5 a' u0 E, \ pokeID, m: O. j4 n4 c' L IID_NULL, ( W9 v, A- h5 h# P5 H LOCALE_SYSTEM_DEFAULT, ; p; ?7 S- h+ N4 U DISPATCH_METHOD,5 L; [5 G, l, ?! q R+ @* h
&dp, 9 K% f2 Z, g! e* i1 z NULL," g4 j5 G' y& e- W; w8 g
&ei, x+ f3 h( ]0 a2 ~) _
&uiErr); - W7 {7 D2 D+ N( n) K6 T. |% X2 a8 r* _3 l M5 t
SysFreeString(topicStr);9 \2 x, a1 V) ]( a" z5 _7 X
SysFreeString(itemStr);$ ?/ h {4 @' a
SysFreeString(valueStr); 1 v: W8 t8 ` j/ c7 a( s/ `; }2 T0 f1 f' ~
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 B5 L- I( c! T+ [8 f/ V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????; V% p, N3 a/ z
% p, V' t% S5 b+ \: E4 @" ~ 2 K. l+ a# N. q# C: h2 L9 S2.这是request的程序 $ z, n% O/ D% z( v+ K8 N* `- q// Request a value from Extend - u' R7 n+ N8 k7 F2 U: E% j// ) }4 V$ q1 m7 Y. \" A l f/ n+ o// Initialize the variant that will hold the BSTR. Set the variant's 2 `* o7 w- e j& {; V& H// type flag to indicate the fact that this variant holds a BSTR. Place the7 E T" [- _+ s# l
// BSTR into the variant structure.4 G; t, x! [2 i9 }2 Q