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:: h: y) [& w! I. M. f
Name = (WCHAR *) L"Poke"; 5 V7 P+ ?( |# a8 I $ |# K" e' y5 J; e5 E2 ?, N
hr = m_pDisp->GetIDsOfNames ( * e% c/ e9 F# i: x8 K% @ IID_NULL, // reserved: S& ^" Z) F4 H! x
&Name, // Array of names to get IDs for5 H2 s. a$ U- O
1, // # of names in the array+ b# @" a: \9 s4 Y/ E: g- k
LOCALE_SYSTEM_DEFAULT, // System locale4 a8 a9 {% I+ U" z% O$ J: R! |
&pokeID); // Array of IDs to fill on output 0 A0 x3 q3 K, A4 X % t# u x; D* l8 @+ }, v" { if (hr)/ l8 I9 e' M# J% I
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MessageBox ("Get Poke Unsuccessful"); ) Q" Q! y5 l) ~ return; 5 ?/ t. h/ m+ Z$ f8 i% A; _5 J }+ X8 ^& l7 l& V; d6 E6 B. m
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/**************************传递数据给extend**************************************/" F3 H. `. m& E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * V6 P, a* m: Q( R! n ) O+ r# k7 B% D; Y& O8 l
valueStr = SysAllocString((WCHAR *) L"1232"); 0 e& R- ?* a# ~' O VariantInit(&pokeVariant[0]); 0 t, w, [+ T$ o; W3 O$ h6 j7 ]* f pokeVariant[0].vt = VT_BSTR; 7 v8 G" M- x9 n7 A5 c9 i pokeVariant[0].bstrVal = valueStr; 9 t+ b! y" s/ z1 q; `' X8 { 6 |; u; s% ~; f; o+ R0 [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ Z6 L5 D) P) N
VariantInit(&pokeVariant[1]); . g6 M' Q4 p9 J5 k; J- v pokeVariant[1].vt = VT_BSTR;" R0 \4 z8 M$ M) }, F
pokeVariant[1].bstrVal = itemStr; 7 \% v+ d z" G9 ] C( z( } - J& D' c* W3 o topicStr = SysAllocString((WCHAR *) L"system"); ( m) s* ~' B! j VariantInit(&pokeVariant[2]); . g0 w4 I- }' F8 I8 D! O+ Q) t
pokeVariant[2].vt = VT_BSTR;) v+ Q, U+ O; N. ^) l8 d( ^+ H _
pokeVariant[2].bstrVal = topicStr;7 ]/ G3 y' G9 w5 ^* ~
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// Set the DISPPARAMS structure that holds the variant. ( `- f. H1 S; j) x 2 f: H0 E# P, p y4 l dp.rgvarg = pokeVariant;- ?. X2 @/ u- b2 C0 X9 \! V* W0 v: V
dp.cArgs = 3; * e, H2 S; ?3 {" s/ S7 k: o dp.rgdispidNamedArgs = NULL; 2 y& O8 _$ p! \2 G8 G4 x. @6 V dp.cNamedArgs = 0;8 x4 t: i$ {- m4 {
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// Call IDispatch::Invoke() ! A! c2 D2 Y0 b- M/ b% X) \. F2 R, i: B6 p' F" k
hr = m_pDisp->Invoke( - a% s! J/ L# A* m pokeID,! X8 P ?" t8 V$ t- D* `" B
IID_NULL,7 e7 t* V. q& m' J! c
LOCALE_SYSTEM_DEFAULT,! [& j8 Q% F9 J9 R( ]6 S
DISPATCH_METHOD, ; I- t& U, S+ R& w1 h &dp,9 }$ u: t6 n$ r' h' S6 F% G
NULL, 5 Q8 |/ l8 M3 s &ei," _* G) S. P6 _7 A0 \, a+ ]2 U+ v- b
&uiErr);( e4 r& F9 M& U r% C
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SysFreeString(topicStr); 8 Z5 X$ }$ {) \ SysFreeString(itemStr); ; N8 Z5 Z8 w! ]: [5 Q SysFreeString(valueStr); 2 F+ T) _% {* S+ L/ j5 d a+ M# I& a( n; D( B2 L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 h8 w9 D' G/ K }; n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???? * ]$ h; m, x2 f7 i1 K4 N( `5 M, ?5 Y- d
6 l' r- {% }4 A6 D2.这是request的程序 . O6 O/ J4 G" h3 w) i& _8 i7 { @// Request a value from Extend# d# Y* W8 y- L" i7 c) `2 W
//4 E$ p: J, T* ^+ `: j
// Initialize the variant that will hold the BSTR. Set the variant's 2 a* E- B1 C/ |) U// type flag to indicate the fact that this variant holds a BSTR. Place the5 X4 ^( D' ^$ _/ \7 n
// BSTR into the variant structure.! s% u: r1 @6 w, j$ z
/ O5 R8 ^8 ]2 s" U7 Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! S R4 b$ ^8 c* P- a
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ k3 C; v$ @. f$ E& W0 }. T/ `
VariantInit(&requestVariant[0]); - j# }) x9 n- `- w$ e7 Z
requestVariant[0].vt = VT_BSTR;2 b: r- w. B" j
requestVariant[0].bstrVal = itemStr; / @. _& N4 [% A/ Q8 G { + J+ \) U8 A3 {* a% @* o `2 b topicStr = SysAllocString((WCHAR *) L"system"); 4 T. X% O! w, B2 }) L7 u$ @# i VariantInit(&requestVariant[1]); 6 Z/ f. S3 R& ]9 |* l requestVariant[1].vt = VT_BSTR;3 [3 X/ y/ o+ f% q
requestVariant[1].bstrVal = topicStr;0 n4 c$ h0 r1 z) e4 N
3 k+ ^3 m, \2 d6 K, b, d- A) y// Set the DISPPARAMS structure that holds the variant. ) l4 L/ W$ Z P. C* e8 X _ 3 R4 ]. l4 C5 B' V S, o dp2.rgvarg = requestVariant;, ^- r0 R. R! o2 K r9 G8 `
dp2.cArgs = 2;5 ]) d: G+ r7 E a. ]! J. C
dp2.rgdispidNamedArgs = NULL;8 B. R3 F8 s9 w% q
dp2.cNamedArgs = 0; * X# ?. k+ \6 ?5 S! D) R% K. ?+ v6 f- { + \& _* m1 ~* h0 z) ` var.vt = VT_EMPTY; & P: d' m5 z% w# _& ]6 ]; ]6 ~0 X, E4 K5 c& ~
// Call IDispatch::Invoke()# V3 @: _, G# \
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hr = m_pDisp->Invoke(7 u" w/ u* u/ k# _/ x
requestID, $ T- y D1 g3 `3 T! S( f# l) J IID_NULL,% |! k9 I, D3 ^' g$ q
LOCALE_SYSTEM_DEFAULT, $ S# S* [0 {- k$ Y' P2 D: Z/ F" D DISPATCH_METHOD, 8 q" V: u+ h- @5 J( t &dp2,* F& g( H, {0 w4 G( E- ]0 ]
&var, " L* g; |- p7 L* Y" e2 @# Z &ei, " M$ p7 w% E' n+ G# f &uiErr);" t; |1 L! B+ O: P6 z! m
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SysFreeString(topicStr); h7 p; u, p6 E( H- y; z
SysFreeString(itemStr); 8 [0 O! X. p0 F请问该程序是获得extend里面的哪个值? & E/ s8 [0 R6 Q) w* w7 P7 o" o如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????