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: ; O% a& }, P" h3 J- x3 xName = (WCHAR *) L"Poke";# E' k5 D) W+ n; ]' C2 \
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hr = m_pDisp->GetIDsOfNames (; \6 m. E. y$ d9 N; H
IID_NULL, // reserved ) ~; ]: X2 Q7 v# Q# H, _8 @0 v &Name, // Array of names to get IDs for' [ e& b; B8 o7 b
1, // # of names in the array& C9 C5 N% v$ c# l( c
LOCALE_SYSTEM_DEFAULT, // System locale * r$ A6 m& Y2 ] M+ @& U& ~1 b. V &pokeID); // Array of IDs to fill on output8 i! H+ F) B: p4 D4 D
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if (hr)' W* P/ @6 }! T$ D6 F+ Y
{ ) h* Y \' a. X MessageBox ("Get Poke Unsuccessful"); : C9 h7 y, k# Y return; ; b4 E* k# a' a! l& W } ! Y& j- q- j, c) c, k8 p$ G $ b% H# o" ]. C+ V- P# b- p/**************************传递数据给extend**************************************/# E) b/ L. c8 T2 o4 a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ w! p6 [' w( w, ?/ I
) Y# i6 X; C' K! N3 p valueStr = SysAllocString((WCHAR *) L"1232"); o* X! w/ V. d% {4 Z VariantInit(&pokeVariant[0]); 8 n' [9 S$ b) h3 b- p$ Q
pokeVariant[0].vt = VT_BSTR;9 i( _! h3 K9 K; n0 e! ]) U8 |7 F
pokeVariant[0].bstrVal = valueStr;8 @4 `' ~" V, l3 p r
' W2 I. n$ {* |. T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 c7 p1 c. r1 Q( R3 F1 c! V% o VariantInit(&pokeVariant[1]); " X- d6 U6 y% N$ E" R
pokeVariant[1].vt = VT_BSTR; 5 w2 S3 ]% j! }6 o pokeVariant[1].bstrVal = itemStr; 8 `5 T5 B5 d* Z* q6 X, U) S8 \3 B; `9 O: k/ p1 W* i6 C+ C
topicStr = SysAllocString((WCHAR *) L"system"); ' ~5 F' O# [/ [' M$ Y VariantInit(&pokeVariant[2]); # O) z' P+ v) D" w; Q; `, E4 ~% X pokeVariant[2].vt = VT_BSTR;% f2 @7 {( v t! a
pokeVariant[2].bstrVal = topicStr; ' L. |6 l& u. z: e, G ! v$ ^* p% z8 b! J- W// Set the DISPPARAMS structure that holds the variant. ' _" ]" R8 P1 E" @5 b5 T- u2 ? A+ o, I& {: N9 |; P1 n$ M$ v
dp.rgvarg = pokeVariant; ( J+ i; v" l+ S1 X1 C dp.cArgs = 3; * H- t# n7 r4 Z6 } dp.rgdispidNamedArgs = NULL;7 A, y; x0 K3 V: f% _* A; I9 v
dp.cNamedArgs = 0;1 m3 Z3 }/ O- S+ a
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// Call IDispatch::Invoke()4 w1 o, A* m( P, K. B' w
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hr = m_pDisp->Invoke(( c3 n& H3 D# X/ @1 H' ^; t
pokeID, 7 D! i2 ~2 P5 a IID_NULL, O# }; Z9 S' g1 l, t5 P# I7 R8 M! U
LOCALE_SYSTEM_DEFAULT,% d9 x+ ?- `6 D7 B4 O, i6 B/ D( u
DISPATCH_METHOD,1 ]' {5 t* ?9 n' D' P2 T, [
&dp, 6 M9 h- `# \! I$ D4 C4 E8 { NULL,' z7 {# K; I8 r* ?9 i
&ei, 8 x2 X+ U) U: Q/ c &uiErr); % R3 r& ^5 a+ P4 F# K; w! } . Q+ e+ a2 [6 m SysFreeString(topicStr);1 l3 w D" u8 B% D7 C
SysFreeString(itemStr); 3 a) v% |+ A; Z6 U0 [1 g SysFreeString(valueStr);! T$ C, _5 g, k4 I# k" N3 L) Z
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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???1 w" v' g. T* _1 O% E" {; A
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???? $ b A. L$ g; |/ c# B j/ y2 [+ E, }$ x, N J
% O; \5 h. Y5 {5 y& S2.这是request的程序4 z* R1 V1 r4 m# c0 d4 B
// Request a value from Extend- {# h7 Q- R3 V
// : s4 M7 ^* @ E' U6 y2 l// Initialize the variant that will hold the BSTR. Set the variant's! d( _3 u7 S$ u( |& ?. g% K
// type flag to indicate the fact that this variant holds a BSTR. Place the * m9 `- ?- W5 r5 }4 o% T// BSTR into the variant structure.0 P$ r' P: e/ F+ W1 O
d5 T1 U2 \- L3 x6 A6 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 p# U% v( c* {$ u6 } . K2 V+ D% J0 x4 z) e4 } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ b9 @5 e% F. C% e
VariantInit(&requestVariant[0]); + S& I. T* M! H7 a, [) p8 z& T
requestVariant[0].vt = VT_BSTR;5 z/ c! ^8 m# N' z: I3 p# E
requestVariant[0].bstrVal = itemStr; . E! m1 K! _) G7 x8 s3 Q3 h2 z' y; t. D$ \* ^
topicStr = SysAllocString((WCHAR *) L"system");1 c0 D- c; P! e% i$ z0 z+ V% G, W5 `
VariantInit(&requestVariant[1]); 9 ~4 C( ]- O6 m5 U& z requestVariant[1].vt = VT_BSTR;/ Y" y0 ?# b, f4 d% C- D
requestVariant[1].bstrVal = topicStr;* P. K; G3 d1 n
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// Set the DISPPARAMS structure that holds the variant.( [7 N2 g) O+ y3 g: {6 p4 T
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dp2.rgvarg = requestVariant;2 v' Y5 H$ f1 z1 U4 M+ j* B/ `# [" g& a
dp2.cArgs = 2; ( {+ F( I: g E- @( Z q dp2.rgdispidNamedArgs = NULL;* H9 x2 _0 }) ^7 z( Y. x
dp2.cNamedArgs = 0;5 X, @! Y: S% A
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var.vt = VT_EMPTY;0 ^# ]& V: L. Z% R! o2 j* }+ i
' _) d) ^; ~6 V2 j// Call IDispatch::Invoke() \4 g: K1 g" d, G6 V; {% F: w, q( ]! l3 p+ l& O: I; _/ v2 k
hr = m_pDisp->Invoke( ( b: Q# S" L! O# U& N requestID,' b; z s: S3 e. ]: _, n# ]4 I
IID_NULL,- U e6 X& Z2 b' A
LOCALE_SYSTEM_DEFAULT, ' O* H/ Q) u, Y! c$ I( l DISPATCH_METHOD, 6 y' p% Z0 ~4 x; i &dp2, , F6 O4 n. w& Z &var, : K4 W7 S7 }6 h; z, V &ei, t1 ~& P: z1 j9 ^4 m &uiErr); ) \& h; U/ ~: O1 Z3 b7 F' Y+ ~; w& X6 n; L5 o& H
SysFreeString(topicStr); 5 Z' V6 t# W, U$ o+ u. G. V2 v SysFreeString(itemStr); 3 ` R4 U& E( m! j$ E* }请问该程序是获得extend里面的哪个值?! ^! z6 ]' M! r! t7 a
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????