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: ; R Z5 G$ d& l) p) p# e6 o. B3 y' zName = (WCHAR *) L"Poke"; 5 E' v" B9 f1 @. l' d 0 O/ e0 X* U0 y% W* v4 r
hr = m_pDisp->GetIDsOfNames ( * Z4 L. p! E: Z1 D IID_NULL, // reserved , f9 r! j* T4 z! K &Name, // Array of names to get IDs for * `1 G( s& e; o5 T$ m. M 1, // # of names in the array ' H5 ]6 Y F2 x LOCALE_SYSTEM_DEFAULT, // System locale0 l7 v9 T: ?! s1 s
&pokeID); // Array of IDs to fill on output 0 o1 c3 B# d, B9 y 0 u/ P$ l2 D- f$ p: Z$ J
if (hr)4 E9 e9 F8 U5 m3 Q5 @2 D
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MessageBox ("Get Poke Unsuccessful"); 6 Y. E, E4 e& l- Q; r return;- u- E' K* w! b; E
} 2 `1 e% R0 i: n0 I 5 v; P% D7 B7 q& L# q/**************************传递数据给extend**************************************/ # m' [# s* E t1 B: j2 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : `/ i- v. f' ` * A( V6 [1 ~( i% N; @# p* W3 \! Y valueStr = SysAllocString((WCHAR *) L"1232");8 h x) r1 y$ ]7 e D+ m" b6 W
VariantInit(&pokeVariant[0]); 9 k. c* o2 y) |2 `' o pokeVariant[0].vt = VT_BSTR; % h9 n' F8 z4 o8 H4 \" [ pokeVariant[0].bstrVal = valueStr;4 w9 c3 f3 ?4 S9 ]" g) ]; s' M. H: s. Q
0 L/ g$ @/ D" k6 G d" S) C* P ~9 Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. M& Y8 `! r) e( s" m T2 G
VariantInit(&pokeVariant[1]); " Z: C) `3 u2 b# D pokeVariant[1].vt = VT_BSTR;- v0 N" m3 L6 o
pokeVariant[1].bstrVal = itemStr; 6 M6 b* p9 Y! O) b7 S& Y% s: o% m7 n' }+ \
topicStr = SysAllocString((WCHAR *) L"system"); ) z" B8 D" e7 [0 R. ?$ P; Y! ~, E& k VariantInit(&pokeVariant[2]); 3 B/ i; z8 j& e# @. c pokeVariant[2].vt = VT_BSTR; , J2 o L7 I3 U& d1 f7 e) { pokeVariant[2].bstrVal = topicStr; " {, ~+ e6 u, {! f9 L$ K ; M* i7 ?4 o0 i! r2 Y2 w// Set the DISPPARAMS structure that holds the variant. / X: W1 V p; h7 C9 d& [! B" o. G) E
dp.rgvarg = pokeVariant;' S. v8 u% ^4 Z8 i
dp.cArgs = 3; / r) ?2 r- z3 l$ V dp.rgdispidNamedArgs = NULL; / g7 i; E( _4 C! @# ^ dp.cNamedArgs = 0; ' K! N, ]5 h6 Z4 J* L( G) I& m: d7 g# e* Q2 y
// Call IDispatch::Invoke() * a) y, I f# @% B + H. y5 D! Z7 s, [+ a! J hr = m_pDisp->Invoke( ) G, B% e. S. {# k9 N pokeID,: z/ Y# u& c1 L( j
IID_NULL, 7 n }4 x' q, ~; a% y4 P LOCALE_SYSTEM_DEFAULT," b, O( c1 J9 u: m7 O
DISPATCH_METHOD,: u/ `- b0 ?# m" u- q8 j
&dp,% H3 O d! }- T! S( o8 u
NULL,9 i, t5 y9 k/ n8 M0 G7 x2 l0 n
&ei, " z( P; m5 |$ t &uiErr); . X7 o- V, Q8 N. W4 H0 m # ] o0 V5 J) E) b+ i) z# c SysFreeString(topicStr); , D4 |3 R, }; B; s SysFreeString(itemStr); / O% r+ o. Q2 Q3 Z SysFreeString(valueStr); 8 y* ?1 V9 S( e# U( p$ A 0 J& T8 s3 @. E# H( C% a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??? 3 k4 V% |& H( g: c9 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????: y8 d8 K! e, e& h T3 Y6 A+ J
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6 }! C4 c3 l$ {2 _* U- y2.这是request的程序 $ \ y* F) J# I// Request a value from Extend. p* N7 r' K9 z4 I8 q1 O
// % p( @( f8 w) Q$ m( v) z// Initialize the variant that will hold the BSTR. Set the variant's 6 S3 N/ ?- V7 O/ w7 p7 }2 C/ O// type flag to indicate the fact that this variant holds a BSTR. Place the ( r8 I' v" D7 C3 h2 R0 G. S6 I// BSTR into the variant structure.: O4 ^+ G$ @. j+ O4 `. T
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& e9 I2 ?: o6 P& y0 {2 P% T