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:: l3 N# G' c& v3 g, w( d
Name = (WCHAR *) L"Poke";8 i1 L5 T; k. t! ^& ] [
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hr = m_pDisp->GetIDsOfNames ( # x/ B/ R T! C7 s8 T IID_NULL, // reserved . g* R! {, J6 z& J+ [. E &Name, // Array of names to get IDs for6 }/ ] z: N9 b5 y t9 b9 X
1, // # of names in the array ~" o* f% I% C$ @8 r4 V LOCALE_SYSTEM_DEFAULT, // System locale 5 t; K" \+ R- J; b) ?0 M4 N/ a &pokeID); // Array of IDs to fill on output: X/ e6 B5 U# t$ [
$ v8 E- C" ~- d9 d2 D if (hr). K- j3 K, b( w! u/ P4 I
{ 2 [ e. `5 i, t# A. P2 J MessageBox ("Get Poke Unsuccessful");+ v( X3 `( |/ f
return;, C1 K4 |! T0 `# {1 ^" n& x5 L& \% [
} , A/ H9 c9 g; R- T" O' v . P% N: f' E9 ^2 g/**************************传递数据给extend**************************************/ 6 r' y' u v. m2 d! |1 v& S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # D, `+ ^7 k+ j$ J' C" p% a" P , o/ O* m) U& T. [( V
valueStr = SysAllocString((WCHAR *) L"1232");* w2 P: b. g9 W" g" [. h7 ?
VariantInit(&pokeVariant[0]); 3 z+ {' I# `, B4 g
pokeVariant[0].vt = VT_BSTR; & ?, o& e& _6 I4 l pokeVariant[0].bstrVal = valueStr; % ^9 s7 A5 L( [! q [0 ~) s# h0 d5 ]. Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 \0 b }0 m% z. l; M# Y$ ?( ^
VariantInit(&pokeVariant[1]); . b# Q' |4 Z2 H1 _
pokeVariant[1].vt = VT_BSTR;! x: w% E. e/ z" F
pokeVariant[1].bstrVal = itemStr; 4 w7 B1 Y1 g- ]: P( V# `/ ?! t( m& \
topicStr = SysAllocString((WCHAR *) L"system");4 S/ e9 ?- C1 B
VariantInit(&pokeVariant[2]); - b$ ^, k6 N% z
pokeVariant[2].vt = VT_BSTR; 8 Q% V' o% i, l8 P pokeVariant[2].bstrVal = topicStr;9 S/ W) I! i) {
( h/ l( K/ [% N4 k6 A. T// Set the DISPPARAMS structure that holds the variant." N" ~2 O3 [1 V9 c/ z+ i: ?
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dp.rgvarg = pokeVariant; 2 A: z# ]; C7 G dp.cArgs = 3;; w$ L. g- O# E; x+ P
dp.rgdispidNamedArgs = NULL;: ~) T$ E9 C+ p. H
dp.cNamedArgs = 0; 6 V$ @% Q8 a: u/ S' }9 F! o Q' T* \" H# G3 b& k) G
// Call IDispatch::Invoke()1 m b5 O; J/ N
* U+ }' V. V: R. ?9 D hr = m_pDisp->Invoke(- h- b& _8 @1 A1 Q; u0 H
pokeID, * b1 V1 }9 q! [" g' l: l- d6 Y" @ IID_NULL, 1 S3 i' r: e( a- t" q LOCALE_SYSTEM_DEFAULT, : z9 C& i6 i Z, b5 n DISPATCH_METHOD, # A2 a8 U v* b! E- K+ x5 v &dp," L$ b; F% k. k7 m; A) B$ h
NULL, 7 w* ~% o; ~- b8 P0 F6 e$ q' ? &ei, 1 G$ A; W2 u6 t) M0 h8 @; z &uiErr); 0 z' ?7 Z3 U5 w6 k2 k9 b/ ?# m, z
SysFreeString(topicStr); $ _7 X9 Q5 Q3 L7 l5 y5 } SysFreeString(itemStr);3 L. r2 g% w9 k: d+ v# B
SysFreeString(valueStr);6 T: M8 g& k( B; X& C
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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??? ) Z ^9 r. K# j8 c1 d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???? 0 i* A) |( G* i* |, T$ ^1 G* o* ^1 ~/ Y, J W
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2.这是request的程序( A1 i. ^1 I% m
// Request a value from Extend1 f/ w0 O0 d8 i7 I9 k
// b) A4 l1 x% ? J& y2 k
// Initialize the variant that will hold the BSTR. Set the variant's - G4 ^; K( I' H% R2 D s1 G0 t// type flag to indicate the fact that this variant holds a BSTR. Place the ; j# I% H+ I0 C4 ?5 d/ N q9 b: q// BSTR into the variant structure. " q! l, ^; y/ j* b9 @6 W+ O6 p9 s3 B* s. Z7 ^3 O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 f M/ i$ D) X