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:; E0 ^ k5 L% c; L7 n
Name = (WCHAR *) L"Poke"; 3 U$ L" |7 Y1 Y3 \! N ; m! u8 C8 s& v. L$ U hr = m_pDisp->GetIDsOfNames (# |; k$ v/ v" _2 P* @% z
IID_NULL, // reserved: M& g0 H0 A/ `$ x
&Name, // Array of names to get IDs for 9 _3 ~# E. |) q/ S# W 1, // # of names in the array- q6 G6 }) {% l# y: ~$ O3 K+ a% }9 Q6 `
LOCALE_SYSTEM_DEFAULT, // System locale$ {7 o1 V! G3 c+ R
&pokeID); // Array of IDs to fill on output/ G. n& `6 R7 z- p
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if (hr) 2 M( g0 _' R/ v- Z. i {2 p9 ]" e- }$ x! _& c
MessageBox ("Get Poke Unsuccessful"); 5 [7 H) ?8 {% j+ o$ K5 Y return;' T, I Z1 c) j; _$ U
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, W" v- b6 O( D, p. |' Y/**************************传递数据给extend**************************************/ C' J4 f: u. ]3 ?6 t$ {1 G6 y: x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; P5 O. @7 g1 m; n' |* }# H + ~9 r# U) e: y; a valueStr = SysAllocString((WCHAR *) L"1232");6 ]# l& x6 k* I/ }6 g- x7 @6 Z' t/ B3 D
VariantInit(&pokeVariant[0]); 3 ~: Z Z0 d# `0 G# t
pokeVariant[0].vt = VT_BSTR; 1 V: O9 l& P8 f pokeVariant[0].bstrVal = valueStr; : b% o+ Y1 L" o5 u/ ]. e. k " d6 {) P( B: t4 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); J% {. U* z4 {$ _
VariantInit(&pokeVariant[1]); 4 J8 n3 X0 w& @) c. f8 Z pokeVariant[1].vt = VT_BSTR; , @( W1 e, t4 D; x6 x/ o! I5 j0 ? pokeVariant[1].bstrVal = itemStr; ) y/ ~2 x2 F/ D" L" p* V3 x$ @7 c0 W4 ^& \: j0 z5 ?) n- c# B
topicStr = SysAllocString((WCHAR *) L"system");8 T7 Z {% q6 {" b) `
VariantInit(&pokeVariant[2]); ' H M$ r& d4 T' O" a8 E
pokeVariant[2].vt = VT_BSTR;, v* r. c+ l0 o' G
pokeVariant[2].bstrVal = topicStr;7 }1 J4 A6 @2 ^9 |0 @2 [. u
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// Set the DISPPARAMS structure that holds the variant./ f: Q# i {7 X5 H, W
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dp.rgvarg = pokeVariant;% f# L- h! q) C- ]/ p, ]7 X5 L
dp.cArgs = 3; - C: l8 [; b) d) g* Q dp.rgdispidNamedArgs = NULL;, P, n$ m. a+ b9 k$ x2 }
dp.cNamedArgs = 0; 6 `. z* o5 Y* X5 e, o' y! c . a: b' v H& {) }0 ]. M// Call IDispatch::Invoke() " v( a5 k& l9 d# t) a- [) Y ' M+ D7 D# e" r: e- X, e& B hr = m_pDisp->Invoke() I- ^" @/ ?% G _5 M
pokeID, 2 r2 v+ S/ w5 o. o, q IID_NULL,' D; D( i2 h9 ^
LOCALE_SYSTEM_DEFAULT,( K0 }. F0 B" B; E j
DISPATCH_METHOD, ; f+ W# P8 E$ [1 E# D- } &dp,- c" ]0 ]4 e3 Z
NULL,2 c4 [5 y. k, [' _) Q, N4 T
&ei, + m" U* s, |* D3 Z4 _% H& G &uiErr); - r4 i8 b) u3 P5 ? T1 d1 [, ~5 N , G3 @" v4 H9 \4 ~7 l' D SysFreeString(topicStr); * @# a( P/ i4 H2 }( M; j SysFreeString(itemStr); & n4 f" q) f1 O/ H& c SysFreeString(valueStr);$ @" d# z! A }1 v4 w! w: `4 h
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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???) {' _, e" n+ s4 V5 ^
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????; x3 |0 v3 b/ @9 J1 D6 b+ e
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2.这是request的程序 1 B0 e; s( l; o// Request a value from Extend# W1 f4 v) A0 _) t0 X
// 2 ^0 F) v& k/ k, Y* Z A# p7 P// Initialize the variant that will hold the BSTR. Set the variant's * @' C' [8 z2 A' V- C0 X' u! S// type flag to indicate the fact that this variant holds a BSTR. Place the/ z0 V% ?" S: j% ~
// BSTR into the variant structure. - |# c1 L% h u1 {3 V, O 7 w" V4 p5 z+ q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# a! c1 S" D" u5 f& l$ }5 n