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: / b/ Q0 L( F$ E/ A$ k0 b: VName = (WCHAR *) L"Poke";! T+ {% ?2 N! N4 F+ M4 P. T
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hr = m_pDisp->GetIDsOfNames (2 s% f2 l7 S* Q; }
IID_NULL, // reserved " \; n, q( W& K' S' F2 [; O& S9 b &Name, // Array of names to get IDs for 1 l$ ~2 K% E5 W; D2 g 1, // # of names in the array* D! G& I1 N3 z% _3 u1 _
LOCALE_SYSTEM_DEFAULT, // System locale0 w( R8 q* b* a4 h+ g: W& @
&pokeID); // Array of IDs to fill on output 4 ?3 _" F' j" Q8 f/ A 0 z2 u' _) ?+ T( h% I0 a: [; J( R if (hr) 6 ~. \* M% H1 m h' h' u {/ k6 V; N7 ], ~
MessageBox ("Get Poke Unsuccessful");* l# x$ K7 ?3 j- \5 U
return;! Z. d. m) e4 P; I
} ! ]- \# m; B' F! G ! T G$ a) `8 d `& k/**************************传递数据给extend**************************************/ 9 l% a/ A8 @" a0 {1 W! c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 K% C. C' ^/ W) |: z& ]4 f
7 z/ M7 a( R* u5 {* x: m) A valueStr = SysAllocString((WCHAR *) L"1232"); , v1 y; F1 q! v4 y2 Q7 m VariantInit(&pokeVariant[0]); % H% X9 J1 X% R* Z- ?
pokeVariant[0].vt = VT_BSTR; 6 g1 v+ i3 e: f8 P2 ?. m7 a pokeVariant[0].bstrVal = valueStr; $ l% w3 {2 N- }' e" l( \. ~) t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % z4 ~( h9 b) B1 V o8 E% P$ l VariantInit(&pokeVariant[1]); . P2 ` b8 J- f% D( Y pokeVariant[1].vt = VT_BSTR; ! ?& V g' K: R) \ pokeVariant[1].bstrVal = itemStr;' _5 L P8 }' b$ N! o
% C) B6 W& g. ? topicStr = SysAllocString((WCHAR *) L"system"); 7 y* j7 z6 O+ t. E' F9 Z0 U7 D VariantInit(&pokeVariant[2]); 5 m/ ?/ O7 }/ K/ N( g4 _ pokeVariant[2].vt = VT_BSTR; 7 s* A0 D/ \2 D3 l+ P y pokeVariant[2].bstrVal = topicStr;' r* H* I* S C. f' V% V$ i. u5 }
6 r" F- c$ j9 M// Set the DISPPARAMS structure that holds the variant.7 ^8 ^. ^9 x* N7 a9 M# _& }
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dp.rgvarg = pokeVariant;' `* D+ K2 ~. t7 C6 `& l
dp.cArgs = 3; - |, L" D& t; H( V( i# M! l dp.rgdispidNamedArgs = NULL; ) R$ e" y/ U( n9 [) K0 C# Y9 c dp.cNamedArgs = 0; . i6 p* x0 j6 |9 s; Y- N 7 u3 N/ M3 |7 O' c// Call IDispatch::Invoke() # T4 F" ]) P8 v: q7 } , q; j( ~% [$ b hr = m_pDisp->Invoke(: I. G9 J/ z/ ~7 F: ?2 h( Q2 V3 G
pokeID, P$ _1 F- c9 `6 A U! w IID_NULL," d( A9 U8 {& {6 A+ [0 R
LOCALE_SYSTEM_DEFAULT,1 L- A2 Z9 q$ x4 k
DISPATCH_METHOD,7 O) Z8 C3 D, I
&dp, ! ^5 e) \& N5 ~5 ^! J! | NULL,, E* Q8 I8 L+ b* J' R( ?! }5 T
&ei, 5 S+ G! |7 C; a- P3 E8 g8 e &uiErr);7 `+ x0 }% g# P! m
- t4 W2 b8 A$ {) s; n8 M# k, a SysFreeString(topicStr); & H7 j# P6 w* s SysFreeString(itemStr);! Y" N2 Q# V5 |: s# U
SysFreeString(valueStr);7 ]4 N* A; `, Y
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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??? & o+ S% V$ p W' s2 {1 q/ U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????: R) ?; Y& q; J, h7 ^7 G1 S
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6 _4 `- T4 Q4 f7 o4 _( |) x2.这是request的程序 2 ?0 U9 V: s/ v/ [$ i8 b! E// Request a value from Extend % _) J: P6 d7 ?, a5 k3 ]// / Y2 c# e0 h H' g- R' X+ n// Initialize the variant that will hold the BSTR. Set the variant's ) Q: y/ {6 l7 y; l// type flag to indicate the fact that this variant holds a BSTR. Place the - o* q# C' k! d2 F. o4 [/ t// BSTR into the variant structure." l* K; y8 H }! n: L