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:# Q b; e# ?/ M' V& _1 Q
Name = (WCHAR *) L"Poke";7 ~7 u( i+ O" R2 d/ l
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hr = m_pDisp->GetIDsOfNames ( 4 h# U0 q, I) R {4 g; h; \ IID_NULL, // reserved" B# q. j i0 N+ f
&Name, // Array of names to get IDs for 3 Y1 x) D) \! Z( y; J# j5 E; d0 V 1, // # of names in the array. \1 [& h. _# D8 D
LOCALE_SYSTEM_DEFAULT, // System locale ! c8 c) ]9 V E6 h: r2 i( F! e &pokeID); // Array of IDs to fill on output9 G. z8 {0 F, `/ l+ |2 I
4 {8 @# Z% T% l- X- i1 @ if (hr) / E) [4 A7 a g3 Z+ A; S5 d { 5 u! ^* k9 ?3 F" s" P, u MessageBox ("Get Poke Unsuccessful"); 8 |( x/ S2 {& \, G4 E6 q return; 7 U; \) E2 [, c) @" ]9 R9 [! {# R6 y } 3 @5 s3 m1 T' U7 F+ H( H; F; m- r$ }- g# S( v0 X- w3 V
/**************************传递数据给extend**************************************/ & o$ b4 D. J1 G9 D0 t5 ~ O7 D# U$ \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ n2 O. C% m5 V: z . I9 L# H9 ~1 |) V, P7 U ^! f valueStr = SysAllocString((WCHAR *) L"1232"); 1 j5 S" `. H. a; D# A( m6 S VariantInit(&pokeVariant[0]); + y$ M) k8 E. o. c w" f
pokeVariant[0].vt = VT_BSTR; ) e) Z7 _( p- }% N, o pokeVariant[0].bstrVal = valueStr; 4 c* r5 _9 B# F d 8 d% y" F1 S; [' p: s" \, [7 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! N( W2 K2 Y# u, e
VariantInit(&pokeVariant[1]); + Z8 }, f- Q1 t8 A$ ^# O! v
pokeVariant[1].vt = VT_BSTR;2 [+ T% n# ^: U5 e' M' H8 w
pokeVariant[1].bstrVal = itemStr;: s# x; w1 {8 I6 r* Z, E8 |8 A6 L1 t3 W
( x2 u$ b2 W8 N" u% O# P/ f topicStr = SysAllocString((WCHAR *) L"system"); ! @7 p) B" F4 D VariantInit(&pokeVariant[2]); 8 S6 ]3 f1 R6 t* i' ^: Y1 j
pokeVariant[2].vt = VT_BSTR; / ^! @! P/ M# y1 B. s. N pokeVariant[2].bstrVal = topicStr;" [8 [2 |) _. S+ M+ \, l1 \7 y
$ j% y" _: q9 v6 v0 B// Set the DISPPARAMS structure that holds the variant. 4 S- |8 }7 k- O* ^; Z. ?) q. G: u+ f) w& M
dp.rgvarg = pokeVariant;! G9 c( j" U/ b% f& M
dp.cArgs = 3;) P( R" g" p2 \1 r/ E2 [0 `
dp.rgdispidNamedArgs = NULL;/ P( t/ U! V, _' g
dp.cNamedArgs = 0; / y& H: I( n e# P, ]: w 8 E& n( _4 W: {$ N6 S. H// Call IDispatch::Invoke() 2 N! E, U: }$ }4 j ; K7 x+ |9 |! |( U: |+ O& P+ Y( U hr = m_pDisp->Invoke(% D5 K+ w- @3 ~6 O
pokeID, 6 L: F; C# G+ X6 l( Y# W) n4 J* c IID_NULL, + F+ Z j+ H& R; d6 [6 t! A1 I) {8 K LOCALE_SYSTEM_DEFAULT, 7 m. j: ?" a4 y f: H( U. L DISPATCH_METHOD," u& u7 m" p" [$ a9 _6 y
&dp,' F8 g7 { q3 z( Y ?3 Y
NULL, w% i. n. v4 V. y. n &ei,4 t1 R' Y1 {' e w: `# v
&uiErr);4 @7 F# U" X1 T; u1 T
@# g% Z3 z! o; w! ] SysFreeString(topicStr); a) Q( }' Z1 |8 f3 r& J1 N SysFreeString(itemStr);+ i% X4 a, e' T+ c6 ?9 s
SysFreeString(valueStr);# H# u0 M. B/ W& j$ M
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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??? 3 {" G, Q; T* Q' H! f3 {% q2 l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????3 o7 [2 i% J, f1 K
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2.这是request的程序 3 y: q* @0 V o: C// Request a value from Extend ! d1 o% d" i' v1 M9 P! h// 9 l$ U" S3 U7 h. D1 ~! Q. n' d// Initialize the variant that will hold the BSTR. Set the variant's 7 a+ g$ e2 c& v$ e! x- [// type flag to indicate the fact that this variant holds a BSTR. Place the ) i% W" c( s" W" t8 a( W% D// BSTR into the variant structure.& G& v! V( u( J$ x
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 U) F5 M; _' k) j4 e
/ S) X9 M8 R% b: l3 i2 K3 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, `" W% K& I! Z0 x5 j! r. G
VariantInit(&requestVariant[0]); S1 Y: }0 i2 n+ k6 F9 Z
requestVariant[0].vt = VT_BSTR; & B9 z- I5 P1 w9 J& U# n requestVariant[0].bstrVal = itemStr;% z' o& I+ I, r' ~! N