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:8 Z( |0 J2 K9 g) V \
Name = (WCHAR *) L"Poke";0 J" M% s. G, R A( x2 S
9 @5 a$ r* j& Z+ k$ M hr = m_pDisp->GetIDsOfNames ( $ }( h0 Z6 u/ P% } IID_NULL, // reserved ; C3 j! e9 i6 G' ~; B7 X2 ^ &Name, // Array of names to get IDs for ]3 X5 Q0 w2 r5 H A# W" |) e 1, // # of names in the array " y% u, @* Q' ]" D1 V2 w LOCALE_SYSTEM_DEFAULT, // System locale( M2 q- g1 k- b& z$ n) V1 r5 w# u
&pokeID); // Array of IDs to fill on output # M9 X! P- U/ m 8 _( [0 c' Y9 P if (hr) B/ K& a9 b1 I& T1 q7 b { , B7 c i, X$ G- t! |0 N- e MessageBox ("Get Poke Unsuccessful"); - i3 o3 c! s) A* E& j: B return;/ H3 j z" B8 ]
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+ N4 @6 @/ J# |* C/**************************传递数据给extend**************************************/ 7 K4 Y9 U3 `% `% z2 V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) [, z M0 \% j' w* I( S. J) h - a4 i, C4 K" L: w8 }5 V
valueStr = SysAllocString((WCHAR *) L"1232"); . t: X5 A* o% y" S VariantInit(&pokeVariant[0]); $ M! G8 z q+ I9 O- [) j7 X& o
pokeVariant[0].vt = VT_BSTR; ' a) u' e: {; x+ V2 U; t8 y pokeVariant[0].bstrVal = valueStr; 6 p, d2 M1 U3 [! r3 v 2 y8 d0 H/ M% l) q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + v3 ?' L8 T2 _6 e VariantInit(&pokeVariant[1]); ! H) I7 J/ Z) L$ \. D5 d0 D% B pokeVariant[1].vt = VT_BSTR; : H7 A2 s8 l) _% I" {: s: p0 f. T pokeVariant[1].bstrVal = itemStr;9 Q- W% L7 }" o" r% C0 o
$ V/ \/ ~# {8 B$ b$ F topicStr = SysAllocString((WCHAR *) L"system");" l: B; u3 U, o9 e& d: v
VariantInit(&pokeVariant[2]); + l h" ~# {& e- d4 c
pokeVariant[2].vt = VT_BSTR; 8 l* y2 s( }3 k" N) M) G3 O pokeVariant[2].bstrVal = topicStr;! N, ?( X' w. d3 O
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// Set the DISPPARAMS structure that holds the variant. ! @4 P# S7 L8 Y. A5 h6 [8 ?2 q1 `1 g
dp.rgvarg = pokeVariant;* W) d7 h( {& m2 Y! V; [0 w
dp.cArgs = 3; ) C- N) P& ?- F! ]/ ~8 E! \- Y- M dp.rgdispidNamedArgs = NULL;$ l. J- `( A* R2 m" I+ X" s
dp.cNamedArgs = 0;* T4 I& q9 {1 X, ~
: ~9 y( S2 Q( m+ J6 b$ C7 P2 ?// Call IDispatch::Invoke() * R! _; U, V8 _. K' z, |* t" r% W1 C& W5 z( g6 W" \& l
hr = m_pDisp->Invoke( ' W. n0 L5 b4 c pokeID, A# w) N% V4 _2 J0 P
IID_NULL, D8 \! K% B6 ]! O$ i
LOCALE_SYSTEM_DEFAULT,7 `" r! ^7 N& r9 d/ z* Q
DISPATCH_METHOD,2 {! s: H3 r7 U0 ?, b0 }
&dp, + f4 }1 x# |. Y" H/ i" a NULL, ' ?* q" c- _9 s4 a1 |6 o9 U &ei, 6 D0 @- V( c! S( @# q &uiErr);2 ?4 o: b1 Q% r9 u. ~
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SysFreeString(topicStr);& x: c1 y$ i6 O
SysFreeString(itemStr);+ y6 r& s0 t7 l4 X+ J+ f
SysFreeString(valueStr); 5 E4 M2 ]! C% m+ \4 {! A. L + j. H d8 ~3 g+ u8 {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??? ( f8 ~. h6 z1 r$ ~! S+ K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????4 m* m8 t" C4 f( t; k& ^- E
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2.这是request的程序: t" A. Q* O! b6 E
// Request a value from Extend! t6 R! I! ~5 W4 ?* e8 @+ Z
//+ q9 e: l9 R- E4 t
// Initialize the variant that will hold the BSTR. Set the variant's. y& R: m2 Y z8 k P3 P
// type flag to indicate the fact that this variant holds a BSTR. Place the - r: Y' _ [5 E- T1 \9 Z" [# P// BSTR into the variant structure.2 \- m$ c+ M* Y! a8 X( N# q
; Z& D% L j3 ?, _- ^& Z. _: [, ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* J& q7 n: r1 j% O
( Z c; t$ F: f' Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; v' t$ u7 p/ L P& W; W# a1 E- W VariantInit(&requestVariant[0]); 5 M- @- s3 x2 O' O3 A3 R requestVariant[0].vt = VT_BSTR; % |3 N+ ~2 E/ e6 C/ c- A requestVariant[0].bstrVal = itemStr;) }9 ?* x0 J7 M
, O) w1 T2 s; B4 F$ o topicStr = SysAllocString((WCHAR *) L"system"); / Z. F8 ~2 p" M5 B; D. y VariantInit(&requestVariant[1]); / [5 p; `2 a8 X& M& r1 ? requestVariant[1].vt = VT_BSTR;* E8 U/ g- Z" y6 K
requestVariant[1].bstrVal = topicStr;& M* u3 O* F0 q1 {# ` p
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// Set the DISPPARAMS structure that holds the variant. 1 L/ p# z. m5 H2 G, F . D# H) T6 ?. K dp2.rgvarg = requestVariant; ( p. \3 O- F# U8 r4 Q dp2.cArgs = 2;, u+ @; u; q5 Q4 B3 |
dp2.rgdispidNamedArgs = NULL;% y! v3 V/ k) E6 x' e3 J# e% c
dp2.cNamedArgs = 0; 3 y. \9 E, U; P4 q: r $ h4 c$ e7 Y) J0 i8 X var.vt = VT_EMPTY; ; K2 u! l' f( u, I 5 Z0 J" y& u' i) G, ^( G// Call IDispatch::Invoke()% s; p5 B2 s W
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hr = m_pDisp->Invoke(1 v# l% s7 V. Q
requestID, : b9 t2 B9 S8 Q# }7 Z( y IID_NULL, 4 x& R- C: D3 o2 b: p2 J4 g1 J LOCALE_SYSTEM_DEFAULT, 6 K/ w8 G6 R1 w; Z" l DISPATCH_METHOD,* i# q; J" _+ ~7 b! \, D
&dp2,0 M4 P7 Y) {) h& x7 L3 v
&var, - Z1 `, M9 w4 U) k" ]6 |; V &ei, & p# E0 a6 n0 q2 }% o* ^ &uiErr); . D {% Q8 \/ @2 ]# X# W: @( K* j0 t4 g
SysFreeString(topicStr); 0 O6 ?- G; S2 |4 c+ {- S SysFreeString(itemStr); + t3 t& ^' D* \; a$ t& i8 T: V请问该程序是获得extend里面的哪个值? : x; q5 y$ p0 @6 ]% ]5 ^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????