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* @) I' A! m) ^: d3 z1 |
Name = (WCHAR *) L"Poke"; . Y, T8 g, M. Y% ]. _; k 0 H- G, X! p5 _4 o1 k& N hr = m_pDisp->GetIDsOfNames (( v6 o& N2 ~. R7 r
IID_NULL, // reserved 4 _9 q4 ^0 p3 `0 \5 N6 Z &Name, // Array of names to get IDs for ' p* k$ f- F" X. C" u 1, // # of names in the array# ^; C4 A" X8 C# L
LOCALE_SYSTEM_DEFAULT, // System locale 3 i/ t6 l: d. J( u* p- u- ~9 T* Q &pokeID); // Array of IDs to fill on output5 c) L8 C' a3 P6 n# L
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if (hr)1 M( A5 U: P/ v+ g
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MessageBox ("Get Poke Unsuccessful");3 V) U& u* \/ I# e8 f8 E+ p
return; 8 T- x8 t7 `; c0 p$ W* F. q } ; y$ }' e2 @2 F5 {4 g) u' } 5 ?/ @, V/ o' O' v/**************************传递数据给extend**************************************/ + ?/ D2 l5 q6 e& ~" \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) E d5 N6 O" D n 4 t9 P1 o) Q+ G4 ?" `
valueStr = SysAllocString((WCHAR *) L"1232"); , c3 R; h/ Q+ P0 D% F% Y% \ VariantInit(&pokeVariant[0]); 7 d: `. R5 A2 b: g
pokeVariant[0].vt = VT_BSTR; ; U7 w% J8 L! O' ~4 U pokeVariant[0].bstrVal = valueStr; ! {' V# ~2 R1 ] O3 w9 q4 |- i ^' |# q/ I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); y0 R% E) _$ o* [# J. e0 {$ S; L
VariantInit(&pokeVariant[1]); $ }& W# U# d( ?) Y- o* [$ u
pokeVariant[1].vt = VT_BSTR; 5 ?# W+ g6 k0 e& h2 |8 v/ K: n pokeVariant[1].bstrVal = itemStr;, P9 n: y4 _8 n" f
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topicStr = SysAllocString((WCHAR *) L"system"); / j9 s$ ]7 b0 Y; z VariantInit(&pokeVariant[2]); 2 n1 V/ N7 ~1 F1 l pokeVariant[2].vt = VT_BSTR;" v+ \$ \: {2 A8 y: p- _( e
pokeVariant[2].bstrVal = topicStr; $ R/ Q. a- ^. d ! @* y6 o# `# I, ~// Set the DISPPARAMS structure that holds the variant.% I7 r* ~3 l5 t: v
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dp.rgvarg = pokeVariant; ( U( R& w! u" `, |) G- i" e dp.cArgs = 3;) \3 o8 q* t: Z+ [1 Z
dp.rgdispidNamedArgs = NULL; w H0 |" e6 c3 D1 b5 }; g dp.cNamedArgs = 0; 6 w6 j- h$ r" W% I% n0 H 8 `- w: c1 R. `// Call IDispatch::Invoke() & D9 J5 b" q |$ g9 w/ o7 c 2 o6 H j6 F2 u' |/ n- n/ W. V2 Q hr = m_pDisp->Invoke( + `& U( U) J+ F& B8 n3 s pokeID, * c6 S6 ]- K% l IID_NULL,# A$ }% L8 v/ r7 j+ _5 o0 I: V6 ^
LOCALE_SYSTEM_DEFAULT, 7 t! K) x& m6 d7 R DISPATCH_METHOD, # y8 E7 d# V5 b q &dp,+ R. K. W! R& b* F9 g0 l
NULL, ! ~- `) s" f/ w. v2 ~9 n &ei," T8 _& m( o1 j/ O. @5 c; S/ p
&uiErr); 4 |2 `% d4 X1 m) h $ f4 Z) G2 q" G2 K7 f8 d" N' D! F0 M$ d SysFreeString(topicStr); , N4 {2 s* q# M1 k+ W! O4 U SysFreeString(itemStr);7 C* O C; i3 q& m( p* {7 a7 i
SysFreeString(valueStr);" X& G5 T3 R9 x: H* [2 C C6 f2 k
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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???! Y" O) q. I+ b* u" z/ D7 t/ Y
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???? & P8 P& h2 M# i' B' F2 n' P; V. @7 v ^- r
3 g3 g4 n( a( X! t2.这是request的程序4 X, ~8 L; _+ T0 S7 M
// Request a value from Extend& ?4 P* V7 j' M
//% P0 k' x: a: R" Y7 Y* W
// Initialize the variant that will hold the BSTR. Set the variant's) G; Y N; N* i- O( b. }4 P
// type flag to indicate the fact that this variant holds a BSTR. Place the ' D9 P- m' Y5 O) A// BSTR into the variant structure." \# S$ `% h# g2 L
+ t0 n. M* _8 |/ |. c; y8 @- l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 ^% F" Y. o& @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) }4 | R j+ l& U
VariantInit(&requestVariant[0]); 7 z W: M! m1 {9 |: ^$ G' ?$ {
requestVariant[0].vt = VT_BSTR;* q t! {3 e2 E& [+ n- q1 G, M
requestVariant[0].bstrVal = itemStr; 8 C8 B, `# ]% L* \4 [4 I0 D, k1 g5 k. l+ d
topicStr = SysAllocString((WCHAR *) L"system");, I- F' ^& H3 l6 @
VariantInit(&requestVariant[1]); 3 ?. Z3 ]! g0 o' w3 Q: a$ {% [! ~ requestVariant[1].vt = VT_BSTR; ' o/ y [4 Q; t( W5 q requestVariant[1].bstrVal = topicStr;0 N: S" H( y# M4 F3 g( t" T4 i* d# F
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// Set the DISPPARAMS structure that holds the variant.3 V! j& k: k$ h) ~* T
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dp2.rgvarg = requestVariant;. t& [) j7 I- B' v; _% ]+ z
dp2.cArgs = 2;4 t/ l: v1 N7 j" p
dp2.rgdispidNamedArgs = NULL;# s2 W- s# v# [" ~0 v/ h9 i* N
dp2.cNamedArgs = 0; 3 T. d3 O1 y" t5 _ _3 ~, G6 F8 f# c4 L# f var.vt = VT_EMPTY; * m- j' m7 v, Q" h6 V8 ~2 q8 |% e ' W N8 U8 E& u1 w6 Y7 R6 E// Call IDispatch::Invoke()2 V" v8 p$ `& n0 P- N
8 X& G, r" J0 k5 X* {) ^6 V hr = m_pDisp->Invoke( # w: u4 _! ]; _9 W! Z; b# Q/ P requestID, ; |8 s* g: R b8 _: Q0 M0 e" s IID_NULL,, I6 Y4 z1 l6 O$ |
LOCALE_SYSTEM_DEFAULT,, Y; Z [$ l* ~- Y& K" ?! H
DISPATCH_METHOD, k/ v U* z$ V" e4 {( M! I. z$ M &dp2,% X. d r, G' E' \( f# I
&var, % B3 g. O7 Y% E3 O& ?( [3 o) t6 g; E &ei, % q$ V% N/ N" |7 Q6 Y+ D &uiErr); & s5 U# c0 Z0 w% m9 ~# p ) L! ^1 {+ F0 C2 z- u6 U3 a9 ~ SysFreeString(topicStr);. d$ ~! j7 g) P9 `/ k# M
SysFreeString(itemStr);" l2 \# q$ N* h8 s1 y6 r
请问该程序是获得extend里面的哪个值? 1 l5 Q2 \. r ?$ Y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????