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: $ I8 c" ?: S. d9 {Name = (WCHAR *) L"Poke"; D9 n1 T# E9 o& F% S
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hr = m_pDisp->GetIDsOfNames (- f+ f, {4 f6 A5 l5 W
IID_NULL, // reserved: n* m# P# f- ^
&Name, // Array of names to get IDs for9 M- F9 R* m( U; \
1, // # of names in the array $ R4 x; A. G: L LOCALE_SYSTEM_DEFAULT, // System locale ( [& K8 u9 v6 i2 w7 _* `7 u. V I/ r &pokeID); // Array of IDs to fill on output / E* D: A1 ]& D/ ` ! b0 M8 D! c* L+ \ if (hr) 9 M$ ~7 a$ G- y {2 q% x- g0 V: C7 s9 X1 U7 }8 G
MessageBox ("Get Poke Unsuccessful");; ~: t6 H1 I4 }/ [
return;: ~) X( Z6 x1 s" t% @) P; i
} n. c, y; v( p6 `2 b0 g$ w 8 i# i) j9 @# v2 Y! F# J/**************************传递数据给extend**************************************/ 1 m2 O* H6 U# Y9 K, F8 J# d! s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& I7 ^3 i6 [6 x6 Q1 b) ^5 Y
0 w4 U3 J: U7 u4 s8 K0 O valueStr = SysAllocString((WCHAR *) L"1232"); - B2 ~: w6 n. q5 R# m, z/ M' p4 y0 U; \ VariantInit(&pokeVariant[0]); 8 y) n, D( i6 v X6 {; O6 {* g
pokeVariant[0].vt = VT_BSTR;. F- Y. G9 W: X3 ?: ~* i
pokeVariant[0].bstrVal = valueStr; / o( s `) [% Y0 h9 Z+ { 7 L* R- d5 t3 i, M' ^1 O& B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 I' K1 S$ p2 [& A1 S, @* q p VariantInit(&pokeVariant[1]); u6 L [7 W+ S$ E# ?- z pokeVariant[1].vt = VT_BSTR; & R: r) I5 Y3 L pokeVariant[1].bstrVal = itemStr; 4 m# U2 P; H3 u' \ ( R; G) E; F% Z topicStr = SysAllocString((WCHAR *) L"system"); # M- g% p; e. `/ j _) ~: ` VariantInit(&pokeVariant[2]); ) c, K Q [6 B& P% I0 `6 C
pokeVariant[2].vt = VT_BSTR; 3 e2 Z8 g: s& l' W% D9 l0 C pokeVariant[2].bstrVal = topicStr;) h$ D ^8 P1 E0 Q9 n* e
$ o& [2 ~# w g0 T& ^) Q// Set the DISPPARAMS structure that holds the variant. + F; ^& Z5 V( p : i) B- L7 A' b W dp.rgvarg = pokeVariant; % q. M( F& J6 m" @ dp.cArgs = 3; + A) k' z! ?. H3 G' N# v2 G dp.rgdispidNamedArgs = NULL; * h) q# G s0 s6 w- i+ \ dp.cNamedArgs = 0; $ E3 ^8 w0 w. M5 R! O4 [- s" S. W - B9 [' E, u7 ?" N- ^1 X4 H// Call IDispatch::Invoke()* u- t: a* ^; q. U1 L
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hr = m_pDisp->Invoke() M) r2 E$ ?- U
pokeID, ( x$ o' _, P3 p* z& R( R/ u0 Y IID_NULL,0 g1 B, n8 P: c- J7 f& w- C
LOCALE_SYSTEM_DEFAULT, % Q+ f n3 ?7 K% D. H: m2 \' ] DISPATCH_METHOD,; ]$ D- N6 v4 D5 m1 o7 O' w
&dp, ) d$ O5 i$ c) T8 _( [2 X1 S NULL, . R0 |; U% ]( ?/ v" v &ei, ( b+ \+ s7 \* u4 x &uiErr);- q4 c. t3 I6 C7 ]1 A n2 p. L
. w, M- D* A+ ^7 f) a0 [" d SysFreeString(topicStr); . W6 l& R2 A2 Z' L7 i SysFreeString(itemStr); 8 w3 M( u3 i( u SysFreeString(valueStr); 9 u/ O" a3 e; M9 u: c. o; p * Y' ~+ b! Z, U2 Q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???4 o. L }2 n- T
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????% C4 u- s/ i1 V, F% T
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5 J, j) _9 K! Y& T5 |/ ?. T, i2.这是request的程序% k2 I# p; Y: [6 J0 z" q
// Request a value from Extend ' @( g" l% U" M; A1 N// - b5 {: w' R( N/ z3 D* @// Initialize the variant that will hold the BSTR. Set the variant's / e2 M, H) W$ u1 b) ]8 G// type flag to indicate the fact that this variant holds a BSTR. Place the 0 N: m o# {! G) t# r; E// BSTR into the variant structure.' b4 l. c0 z3 m/ k( X; A9 p4 F