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% e! c1 \7 ]
Name = (WCHAR *) L"Poke"; 7 y2 l4 a6 f2 R4 g p3 [5 a6 { + I7 M! x. T1 T; l& M, U9 V
hr = m_pDisp->GetIDsOfNames (/ ]: L" D/ E& n: V) w; H$ k t/ Q
IID_NULL, // reserved: v/ `) f* Y: M K/ V
&Name, // Array of names to get IDs for 2 Y) K6 K! P0 }1 b8 e 1, // # of names in the array& ]* G2 ~. m7 V# y
LOCALE_SYSTEM_DEFAULT, // System locale. w' d1 t2 z& V. J) t+ H3 {( I: h
&pokeID); // Array of IDs to fill on output8 W* h3 p; [" X
# ~" h1 i# Y8 h( a" ]0 q+ i if (hr) 6 m, G- a$ @2 D/ H) k) k { 2 Q( I, A* `6 T' x0 r+ l MessageBox ("Get Poke Unsuccessful"); : G; T+ J+ t/ L$ P' K return;# }, W7 ^' d; E5 U0 o( K
} 4 }4 [- w$ i Y. G* v# W : M1 N# F& m# ?1 h+ W- N7 q/**************************传递数据给extend**************************************/! t/ L# |. q7 k5 h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : E: k3 e2 \6 C/ U" Q3 F : F+ c# i# f4 A! y: e* [. W
valueStr = SysAllocString((WCHAR *) L"1232"); 2 C A+ | e8 g, r VariantInit(&pokeVariant[0]); " D7 \; T1 \6 d* m pokeVariant[0].vt = VT_BSTR; $ G3 N2 ?2 |9 _2 t pokeVariant[0].bstrVal = valueStr; # \8 a. N! U/ V3 A& f+ T3 _8 U* `% V& ]8 X1 ~6 a4 @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 ~ E( `* d8 y
VariantInit(&pokeVariant[1]); " v& }2 @$ j) r* N
pokeVariant[1].vt = VT_BSTR; , w- p6 U7 E6 g+ X pokeVariant[1].bstrVal = itemStr; # ?* q6 l3 `; r! d* ~: T1 A$ ^0 V+ u( f/ C' [( Q% P
topicStr = SysAllocString((WCHAR *) L"system"); & X# `# K5 ?/ Z; T. _- } VariantInit(&pokeVariant[2]); 7 g2 r* i1 j, J pokeVariant[2].vt = VT_BSTR; : c$ J4 }/ R+ n' K$ b4 h pokeVariant[2].bstrVal = topicStr;- V* L2 L) _' p B
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// Set the DISPPARAMS structure that holds the variant.% T+ \& q3 k0 v: H6 ]- B F4 Q' ^/ x9 z
5 G2 o3 H( i7 w6 a dp.rgvarg = pokeVariant;# f. f- `- ~" n- b5 Y
dp.cArgs = 3;, T# ? r5 G: l+ Q" x, m
dp.rgdispidNamedArgs = NULL;! W: @# n+ v) e* Q# e
dp.cNamedArgs = 0; & [9 Z3 I: B& S$ z0 q - _. U* Z, S$ I) n0 H+ _// Call IDispatch::Invoke()4 K( S6 ?" x5 K2 P
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hr = m_pDisp->Invoke($ K6 W6 y+ c: E, u
pokeID, % H* w/ \( z9 e7 X: C IID_NULL,: Y! A8 {6 c% K" U- l+ C
LOCALE_SYSTEM_DEFAULT, % Z. c) q. r) c DISPATCH_METHOD, ; o" t0 n& G* n m% O &dp, , k, o& H2 }% C( t( M& w NULL,$ ], e5 y# a* [$ A6 [7 k
&ei, * D8 _: k6 [; d# J3 r2 ~ &uiErr);4 w# i& c7 D8 K4 u* I9 H1 q
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SysFreeString(topicStr); , G. @' }- @& ]$ m2 n% I# W SysFreeString(itemStr);4 H& ?' G+ F* `0 ^* Z K$ }
SysFreeString(valueStr); ( x3 m7 A. K l1 S& v) y7 |$ }8 j; B# F& m7 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??? . @( U$ `) H f7 _4 @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 {8 w* T$ u' p5 _
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2.这是request的程序 i2 ^, K+ J' A9 T h% g8 d! p
// Request a value from Extend6 ~* H- H/ N& s8 f4 d* V/ u
//$ X6 H( k' P. `
// Initialize the variant that will hold the BSTR. Set the variant's6 Z1 q1 c b: W0 M2 m3 b5 K
// type flag to indicate the fact that this variant holds a BSTR. Place the 9 d9 k4 A( W$ Q// BSTR into the variant structure.# ~+ u/ n: K& }( M) o