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 p1 ^0 T3 k8 p+ HName = (WCHAR *) L"Poke"; & l3 L6 b7 s+ L8 A $ v: W! S; w# c8 d
hr = m_pDisp->GetIDsOfNames (, T1 {& l. f* h* R( p3 u9 x9 e
IID_NULL, // reserved1 ?* U, t9 h/ [! `- T. m
&Name, // Array of names to get IDs for0 U7 F0 @; y8 j4 q" i z
1, // # of names in the array" S) k& U6 \/ ~ a, J- p
LOCALE_SYSTEM_DEFAULT, // System locale0 _5 _( l Y6 F! p4 ]
&pokeID); // Array of IDs to fill on output/ |; z* e) v: r* r" X- V8 F
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if (hr)# p$ B. [' u+ T0 F7 k
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MessageBox ("Get Poke Unsuccessful"); ! Z8 \* ~' E, U5 [" q1 P- `$ H return; # Z1 {8 z3 ^, Y- M7 [; b }# m7 x5 J4 x8 C, P. Z
; D/ [/ ?$ e* e2 R7 r- x6 t valueStr = SysAllocString((WCHAR *) L"1232");: [: Y+ q f7 Z) @* s
VariantInit(&pokeVariant[0]); ; e8 C9 p D6 H; H( v pokeVariant[0].vt = VT_BSTR; / t" Y X7 m) }" v' Z9 a% k$ _8 V pokeVariant[0].bstrVal = valueStr; 1 p5 R) H0 G. S" y1 v9 Z) ` ]0 d6 ^7 K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! z) |2 U1 ~ F$ o VariantInit(&pokeVariant[1]); & F' a. {) m, P: C/ b# u2 T
pokeVariant[1].vt = VT_BSTR;0 R1 f: c1 ?' y0 a( C
pokeVariant[1].bstrVal = itemStr;' l; E! |0 ]4 X' N9 Q" R
& S: t @3 \7 H topicStr = SysAllocString((WCHAR *) L"system");0 t% b7 M0 n4 ?% z& P/ f+ ]
VariantInit(&pokeVariant[2]); " U- y3 ^; [7 Z% k1 L1 h# E
pokeVariant[2].vt = VT_BSTR;5 B C( @1 h. W& d+ d
pokeVariant[2].bstrVal = topicStr; + r0 M* |9 G! U % C- J7 [- Z% O// Set the DISPPARAMS structure that holds the variant.: A8 N: Q0 W) q1 S5 U
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dp.rgvarg = pokeVariant;) |% @' ?7 w/ D- ?) v! H* Z
dp.cArgs = 3;4 k. h+ N: v# ~5 x
dp.rgdispidNamedArgs = NULL; . S( q4 y; d+ _; x" U dp.cNamedArgs = 0; ( ^" ~* a7 }. \5 L% X k( z# f' t% j2 I* c1 l; `% @+ E ^" d
// Call IDispatch::Invoke() # o, O) V J* G h) c: e7 g3 W1 f I5 e8 w1 V4 @+ X. b, B A
hr = m_pDisp->Invoke( 9 H; {8 f! i( ~6 f$ A pokeID,8 d9 N C! w9 }3 k+ ^
IID_NULL, _/ D5 G9 b$ ]1 O! t' h& L+ U; q LOCALE_SYSTEM_DEFAULT, ' g" w4 b' I+ c) K z |2 n; t DISPATCH_METHOD, 8 R. H! Y- l, v/ p &dp, ' E; }8 f3 S7 b( ]( ]: ]1 C NULL,2 |9 }2 h! }! G. F1 @9 U8 y
&ei, 6 I1 l5 }' |* d* i( ` &uiErr); # I% H4 Q' [3 J3 ^ . i* [, ]: c" e2 q SysFreeString(topicStr); ; \4 t1 p. l( J7 z, R" n SysFreeString(itemStr);5 P5 [/ b# o2 U" w: u6 r+ h" n2 Q$ J
SysFreeString(valueStr); . Z$ f3 W; n: F% w / a# N, G# D% U& J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??? }3 F. ^1 D& D. N* U% P/ k' 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????6 j5 Z% R6 b) Q5 g6 N$ B3 d' E% @" ]
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+ I) J, M. h& }2 ~+ t" z2.这是request的程序 ! c7 n; |% F3 t. `8 Q$ k2 \: H// Request a value from Extend# f# n; H: n/ Y
//' D% j6 ?: r: v1 _6 C) M1 Y$ ?0 g
// Initialize the variant that will hold the BSTR. Set the variant's 8 c9 ~" y- @; i+ S+ H" T0 g* o// type flag to indicate the fact that this variant holds a BSTR. Place the, g0 n) ^4 }$ _9 a$ u* U2 Y
// BSTR into the variant structure. * n7 T: k, Z% D* k) @ 7 P4 _, T$ A! U6 F# q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 ?* l. }: d5 Y$ w4 B
8 ?+ \* V0 o K& S w4 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , H+ o: i+ q. t5 W! q3 l VariantInit(&requestVariant[0]); ( {' y* ?2 z- |2 P requestVariant[0].vt = VT_BSTR;0 T: @9 B% M6 d: |
requestVariant[0].bstrVal = itemStr; h2 X5 p) ?* v! m; |% _& r4 P, a! L/ k' ]8 N! A9 Y
topicStr = SysAllocString((WCHAR *) L"system"); " a5 q+ u3 l& j# V4 B VariantInit(&requestVariant[1]); 4 \& z+ l0 M2 G/ @& \5 p requestVariant[1].vt = VT_BSTR; & V1 z( C0 N0 ^" s; K requestVariant[1].bstrVal = topicStr; e& q }9 d/ m2 b9 m. z% ?! t9 G+ u+ X# V4 [$ F1 X! n: A/ [
// Set the DISPPARAMS structure that holds the variant. $ O X& w& q2 z) j. \' @ * T; y- }2 q. g: V) }. N, b- z dp2.rgvarg = requestVariant; % l: K. S, b: {1 \) X dp2.cArgs = 2;8 Y' O* l% n" | p( j U7 G, P
dp2.rgdispidNamedArgs = NULL;- H/ y* D8 L8 W
dp2.cNamedArgs = 0;' l' h* p' s! o$ e7 W: V% k
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var.vt = VT_EMPTY;/ P' s) P% a1 r! ]
& B2 X5 N2 e! f) g// Call IDispatch::Invoke() % c, |, t' W8 \2 ]- k8 u4 f, x- S : `8 Q& z( G$ Z hr = m_pDisp->Invoke( : G- |0 P6 }2 E9 D7 `5 Z1 q requestID,: P$ O4 d5 S9 \- {& E* Z
IID_NULL, & [/ D. ^( B' W, l4 E0 } E% }+ [1 y LOCALE_SYSTEM_DEFAULT,1 ^* y M' s5 ~4 M% {0 `# ^' v
DISPATCH_METHOD, & q" R3 t0 W" @- [4 X &dp2,& e8 E8 \9 F# I0 U
&var,' ^# D. z1 t! f6 c1 U( O
&ei,1 t" f7 p/ A2 \1 [2 V
&uiErr); * M7 `% c0 J( _( u) j4 b3 G / q+ u9 V! u. M* a$ n! ~ SysFreeString(topicStr);/ U0 ?2 e: |# o8 e- Y- b
SysFreeString(itemStr);# s; ?/ b7 k& C4 T5 g; U0 X
请问该程序是获得extend里面的哪个值?8 O: B3 i1 c8 W* f; g
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????