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:, Y6 f, M, S! ^+ s, E. c
Name = (WCHAR *) L"Poke";7 P1 [1 K6 F4 b# I/ c
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hr = m_pDisp->GetIDsOfNames ( 9 p+ O5 ^6 @4 }4 w& h9 y IID_NULL, // reserved " k* X( G+ F/ M) ?3 g &Name, // Array of names to get IDs for 1 j5 j% Y& D X4 O8 g 1, // # of names in the array" T; B" h. A& ~/ A
LOCALE_SYSTEM_DEFAULT, // System locale . y7 A0 b+ t7 Y) R &pokeID); // Array of IDs to fill on output" q8 O4 Z: I3 B' [1 C+ d! q# y
# Q8 p' C3 C. j5 N: p if (hr)$ _% m B$ M& y' p9 ^ _, d
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MessageBox ("Get Poke Unsuccessful"); ( ?( `" ~' v+ m return; ) G0 _# ^) Z1 E' \$ `, b3 ^1 A } 4 }' R/ H: e5 v; P+ S6 [. k / t) K# J' ^/ S/**************************传递数据给extend**************************************/ . C; u6 [; ~( ` A5 F m( j; n) ^& u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " {, d6 _( j8 ^2 R/ u % t- z$ l: _" F P8 K
valueStr = SysAllocString((WCHAR *) L"1232");+ \) a5 t& l/ a6 F( b9 w
VariantInit(&pokeVariant[0]); # Q S/ o/ V6 m, S% E* ~! w pokeVariant[0].vt = VT_BSTR;$ X0 K- l4 d" P/ f
pokeVariant[0].bstrVal = valueStr; 3 y1 K1 f: p3 @9 m; [. y 0 w8 S% s% W0 q" l2 b8 ^1 M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' Z7 N9 f3 o' V8 w1 _
VariantInit(&pokeVariant[1]); 2 e+ S& Q/ Q8 C pokeVariant[1].vt = VT_BSTR; 6 E: D$ O' G7 D/ W( G. l pokeVariant[1].bstrVal = itemStr;% s% G: {% q Q& i) }
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topicStr = SysAllocString((WCHAR *) L"system"); " r0 M- D2 a/ j$ ^% i0 y7 V, m6 s VariantInit(&pokeVariant[2]); ; x# u( }# a8 V# c+ N; R: S4 i* t
pokeVariant[2].vt = VT_BSTR; ( T7 h+ h+ r6 ^* ?3 Q5 ^ pokeVariant[2].bstrVal = topicStr;9 E' j' T. n' S: F" J7 ]# {8 r3 I
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// Set the DISPPARAMS structure that holds the variant. 5 I5 m f! s* | T7 p1 C, d7 [$ d, g+ q3 z
dp.rgvarg = pokeVariant;4 P$ X$ P x& _7 q% H+ ]
dp.cArgs = 3; ; [9 g7 n a, q% ~+ r8 U dp.rgdispidNamedArgs = NULL; , X/ Z# A# ]2 S8 D& ~4 A dp.cNamedArgs = 0; 5 D4 ^# w3 u0 B/ A : M, ~ y/ I- g. f+ M$ _! c// Call IDispatch::Invoke() ; U4 s, p7 [$ G7 P2 o: ` b. `8 c$ L2 U
hr = m_pDisp->Invoke($ ?) Y, `6 Z2 A% H. Y$ `6 o; N
pokeID, ( y+ C3 w) {+ e# ]! n) D A IID_NULL,$ m' I! h4 D' h: d( i3 B
LOCALE_SYSTEM_DEFAULT,) h' F. [5 y0 M' R, b$ G
DISPATCH_METHOD,2 _" R. q9 k7 s$ ^6 j! A
&dp," _% S6 r' c- ~$ Q+ x s$ k+ Q: N
NULL, ' O: ~$ Z, W$ W1 k' d7 \ &ei, , S" U- i7 u) I6 M8 P9 }* b &uiErr); C/ t1 ~: ^4 q$ p+ T- O7 F) t0 Q/ C5 ^( v' U3 |8 u
SysFreeString(topicStr); ( V7 b: U$ \' t; |5 t SysFreeString(itemStr);! z1 N9 D) q; Y" x2 J
SysFreeString(valueStr); ( {, ~: W' ]& l! R3 @" T' b/ v% \4 Z A4 z7 F* b* D
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??? # `+ [: x4 L- E& f7 C: Q: ^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????; V9 v2 L" e" F1 k$ p4 e
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2.这是request的程序 . }9 E% ~4 }/ Z1 ^// Request a value from Extend2 w4 i" o- Z! @( ~9 W
// & I# k% \ |; B# \8 n3 H// Initialize the variant that will hold the BSTR. Set the variant's, S. h0 Q8 e. \ D
// type flag to indicate the fact that this variant holds a BSTR. Place the- y; o" q7 Q0 v6 R1 c0 V4 h& Q0 y
// BSTR into the variant structure. - [! v4 |0 s" b2 ?4 ?; p5 Q% Y! D+ Q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : s' a2 Z- C( ^' B; w8 s ! L8 f$ r, N& {9 [9 q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 @# J- ^2 x2 h" U- H
VariantInit(&requestVariant[0]); $ z6 Q. s8 D3 P" I requestVariant[0].vt = VT_BSTR;8 `5 {; b ^5 u" `: U5 D" A! L
requestVariant[0].bstrVal = itemStr;1 g/ v9 r \4 }3 E# P Y
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topicStr = SysAllocString((WCHAR *) L"system");3 `9 v% u. [9 I6 A t; s
VariantInit(&requestVariant[1]); " `( k3 q% B, u; z# S
requestVariant[1].vt = VT_BSTR; $ [0 A" V0 N: u0 k3 k( x M6 S3 G requestVariant[1].bstrVal = topicStr;) A0 U0 O9 W8 L* W7 A/ b. W" }' L
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// Set the DISPPARAMS structure that holds the variant.7 c9 P: r0 _8 \& E2 P
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dp2.rgvarg = requestVariant;$ v9 f. j8 j, q' [8 [# F. _/ `
dp2.cArgs = 2; ! l' Y. a7 e7 h! J" r, n dp2.rgdispidNamedArgs = NULL;; T( z O; `& E
dp2.cNamedArgs = 0;) [! F' D# ~0 Q1 L; @! u6 _
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var.vt = VT_EMPTY; 6 ^2 }# _8 ^7 B $ b' s& ~* E; k7 ^ V7 O// Call IDispatch::Invoke() * q% `2 a) Q; {5 B6 G5 w% V/ k+ K+ X/ y8 A5 d3 \
hr = m_pDisp->Invoke( 2 u. G9 U( d2 S# l5 |4 m% r requestID, : x& s7 z4 t1 }: l9 C5 C IID_NULL, * x2 @# g( v) K7 ~5 e; n, w LOCALE_SYSTEM_DEFAULT,9 H$ h! A- Q/ ]8 O B% w
DISPATCH_METHOD, 8 x6 d2 D0 c! O( T; b1 t &dp2,0 M2 n# M; f, ]9 h1 o
&var,, G; `; E2 O( x6 G) j2 u
&ei,5 n1 D3 F* Z+ O
&uiErr);2 R! G- `) k% M- a; N
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SysFreeString(topicStr);! \7 q" w8 O n! z4 R4 j) W! K7 c
SysFreeString(itemStr); % f" ~6 J) |3 b, W5 j j) {请问该程序是获得extend里面的哪个值?' R& f5 h( b& j; `
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????