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:! X) U) w# G3 O0 P/ X$ J8 x7 H& O
Name = (WCHAR *) L"Poke"; 1 _8 Q( M9 N" q/ s - m, K) T! @( w
hr = m_pDisp->GetIDsOfNames ( + Z7 q) P6 f/ E! ^( T; Z IID_NULL, // reserved% }* V L7 J0 K1 R7 L1 o
&Name, // Array of names to get IDs for% Z0 q ~4 h) q/ H/ @
1, // # of names in the array * ^6 _) c. \$ S/ Y( x LOCALE_SYSTEM_DEFAULT, // System locale 3 ]% r8 D- n0 D# z/ | &pokeID); // Array of IDs to fill on output ) [6 w' C4 k# ^4 _) e2 y$ K A y" v/ D: S2 m if (hr)1 y) e! G) h2 Q0 |, j' Y
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MessageBox ("Get Poke Unsuccessful"); 1 F. F" J: _# ?& M7 C" z return; & {6 ~5 ^$ ]' ?( a } - A# U. h6 G2 a& v9 A- p* D) b3 u+ }8 m' j
/**************************传递数据给extend**************************************/) N3 u; s R. d1 R9 x) C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' E% @* t- b2 [+ G3 N
9 t4 e }" a z- ]' V valueStr = SysAllocString((WCHAR *) L"1232");. j5 X7 Q# l" Z) v( W5 G
VariantInit(&pokeVariant[0]); 6 T# @7 Y: f9 Y
pokeVariant[0].vt = VT_BSTR; 0 v8 G: J+ w9 u, r pokeVariant[0].bstrVal = valueStr; 4 \; c& t" n' Q3 x, W9 I4 [" m0 O6 B. F$ c4 V; m% W0 g) C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 p. H/ {" Z* @ VariantInit(&pokeVariant[1]); . n1 k% u. x% g0 {2 @1 R pokeVariant[1].vt = VT_BSTR; " G8 c& @3 N; n, B pokeVariant[1].bstrVal = itemStr; 8 Y) ^1 R4 J& r# u + B0 r0 {! _, D7 W2 A& { ^ topicStr = SysAllocString((WCHAR *) L"system"); 0 v k, ^2 r. z VariantInit(&pokeVariant[2]); ; }. w: `5 x1 E; J A0 }
pokeVariant[2].vt = VT_BSTR;2 t. `; }" R7 k
pokeVariant[2].bstrVal = topicStr;2 E" P6 U/ h. c
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// Set the DISPPARAMS structure that holds the variant.+ w# i- ~# ?! ?* b, K. l L/ [1 v) f
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dp.rgvarg = pokeVariant; % N$ j* U3 C3 e1 W& F) d dp.cArgs = 3; % t: ]: o- P. o' { dp.rgdispidNamedArgs = NULL; d# W4 B, `7 T9 T/ T/ ]9 m3 A9 _ dp.cNamedArgs = 0;4 k. n: y8 \0 x/ c6 k5 V
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// Call IDispatch::Invoke()& m' ? Z4 Q- K8 a+ q8 a5 e% b5 _
/ n/ w6 X6 N; k# z, ~ hr = m_pDisp->Invoke( * x' c" h2 g3 k! o i7 E$ @5 D0 R0 S% w pokeID, 1 ?7 w! n' J5 _$ y IID_NULL,. S. K! h$ o2 O# x, }$ @
LOCALE_SYSTEM_DEFAULT, # F/ Q8 B f( h DISPATCH_METHOD,$ F) ^# i4 e! _( }% A9 k) C9 [
&dp, - s5 Q- t: c0 h( c) {8 D NULL, : F7 ]. P; t8 K6 \2 Q' i/ t &ei, F7 c& F8 Z4 b+ R$ Y1 x &uiErr);1 n1 N- e5 t: ~! @ \0 I+ n
3 |( e0 ^3 S9 A! v/ G1 P: o: Q SysFreeString(topicStr); 1 [3 g R8 E5 h6 C5 B! |" n SysFreeString(itemStr); 1 c2 r) s+ I) U9 ?9 X( L SysFreeString(valueStr);8 F% c& y2 z0 n2 {4 q
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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???0 P5 w `; _7 K8 c: ~3 T
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???? 1 {4 r2 m# P& o+ U2 h 1 O {# ?$ Z8 l. }+ D6 C$ x 9 @# t, E- ~$ [( h. l# n; C2.这是request的程序 ' V9 T& l8 B( d9 J// Request a value from Extend1 V5 a8 a( s: P2 W, o
// ; n+ \; ]& z" ~// Initialize the variant that will hold the BSTR. Set the variant's5 N# u/ E0 L: Z5 B/ B
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 E4 Q+ p' o0 b9 w; @& ~// BSTR into the variant structure.2 ^1 q( i, S+ C0 E& G9 X5 c
; D% `9 a( ^4 g. C7 A- H0 s4 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( X: O" |9 n2 i9 j, |, G# w, t - }" @ `# S! t c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 L& j9 D% l( e8 p3 ~+ U' G9 {' O
VariantInit(&requestVariant[0]); & Y% I$ O. s/ K1 W4 j requestVariant[0].vt = VT_BSTR;2 C7 _1 p& C8 `
requestVariant[0].bstrVal = itemStr; ( A0 K2 A) k4 b3 C( g- q3 }* t" V4 Y0 ^& ~( {+ f1 n
topicStr = SysAllocString((WCHAR *) L"system");8 T2 G, g* d! G% o% e" B: {
VariantInit(&requestVariant[1]); ) x4 l* L. M- I1 j! {; G- Y% d
requestVariant[1].vt = VT_BSTR; 9 ^* C: Z# ~/ u5 W% X: Q/ n# g requestVariant[1].bstrVal = topicStr;0 P& P! T; m& O/ s
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// Set the DISPPARAMS structure that holds the variant. G" H! o% b6 b& e% o1 G! y- ~* t; e- ?
1 e, P* O! }$ N( z8 P; B dp2.rgvarg = requestVariant;) U! E$ }; t, I4 W4 }6 P/ F" K
dp2.cArgs = 2;# `1 B8 ?/ T$ O x0 q$ r
dp2.rgdispidNamedArgs = NULL; ( b2 v# U7 y- e: T0 @6 V dp2.cNamedArgs = 0; % o6 R9 M% K6 r+ ^) O) K2 P2 g8 c / Y9 v" Q5 s; b: b var.vt = VT_EMPTY;5 A- w- Y( z$ ?" s
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// Call IDispatch::Invoke()3 G# Z' F* j% \/ q5 H2 V
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hr = m_pDisp->Invoke( 4 I# x+ ~& P/ p" L; Y requestID, 9 [8 v7 i0 e. R, n, ` IID_NULL, D# T# M' P& E' `' \3 {& Z+ _
LOCALE_SYSTEM_DEFAULT,% v3 f6 L# d5 @
DISPATCH_METHOD,4 V5 B9 J/ A8 ^0 L
&dp2,6 w) @# j+ s6 }8 J8 F- r
&var, 6 y4 Y( ~' m; R0 i &ei, 5 z! i8 |4 H+ H* g0 \0 m &uiErr); # [( `. N- f( i, ?5 O' y( w' D% l, |; D% b; S- n( W- N
SysFreeString(topicStr); R- m1 n( H% \, y" {6 F5 Z4 E SysFreeString(itemStr); % _9 S# ~' @/ J9 q$ k( w请问该程序是获得extend里面的哪个值? # L5 B. T2 S/ D) Y1 M( C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????