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:" Y' k+ M$ Z w+ Z! z9 x" u$ u
Name = (WCHAR *) L"Poke"; 0 m0 \- A) L5 }8 n. s ; F) j' `' _/ R$ w4 L' |
hr = m_pDisp->GetIDsOfNames ( s# w9 V7 v% e5 [) \ IID_NULL, // reserved ) P B! J' X& w' T5 \ &Name, // Array of names to get IDs for k9 c. y3 P6 V. o4 e/ P% v 1, // # of names in the array& | m! o9 s% m, ?9 v
LOCALE_SYSTEM_DEFAULT, // System locale: g Q# T1 q, N, G: ~/ l1 ]2 m4 Z
&pokeID); // Array of IDs to fill on output3 O7 V2 |. L( I: D( W6 I ^
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if (hr)$ a8 w2 ~2 ~% h* T
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MessageBox ("Get Poke Unsuccessful"); D, j2 a) H/ b' r( @
return; . ^, G! L6 p& ^ }7 E1 \7 t$ b% R# m |7 G: h* T" W$ U4 H
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/**************************传递数据给extend**************************************/ + S- |8 E9 [3 S% j w3 N7 m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. U( V7 ~/ \8 S @. a1 x5 p/ z P6 x0 P
& D* u }* ~; g% g/ r7 }1 Q valueStr = SysAllocString((WCHAR *) L"1232");+ L( A3 F# w7 F) z7 o2 D
VariantInit(&pokeVariant[0]); / K) ]/ Z+ Z, b6 c$ B8 w
pokeVariant[0].vt = VT_BSTR;# k6 E! Z' Q( L
pokeVariant[0].bstrVal = valueStr;) H& d; z. }' @) q _6 s2 z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* A3 h" k1 ?# [1 O9 \8 h
VariantInit(&pokeVariant[1]); ( n' _+ J" h, }. X
pokeVariant[1].vt = VT_BSTR; 7 b+ U! z8 f) R7 a3 q5 U: k% ^ H pokeVariant[1].bstrVal = itemStr;1 E7 W( R2 ^' Y( v/ }! H$ D) z A: Q' y
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topicStr = SysAllocString((WCHAR *) L"system"); * w! W# K2 O$ O& f: O; V' G VariantInit(&pokeVariant[2]); + ^- x) X$ k# X) x! j/ @' Y
pokeVariant[2].vt = VT_BSTR;+ }8 A) K' H) X8 {5 q- Y2 X
pokeVariant[2].bstrVal = topicStr; Q1 N" `: F" u5 }/ r* s& a6 O- W- i
// Set the DISPPARAMS structure that holds the variant. 6 R7 J7 o0 c3 G( r! J 3 ~) n6 W) [! ^) N0 K; h" } dp.rgvarg = pokeVariant;- v: w* l- D3 J$ d
dp.cArgs = 3; B4 G" ^% x$ r, u# \
dp.rgdispidNamedArgs = NULL;. A: [, H( S. O/ s# B- j7 x
dp.cNamedArgs = 0; 8 [ e# j3 e- d7 p$ H, ]! q, p
// Call IDispatch::Invoke() ' f; d) s0 C! L 7 n C* |! y# ]4 H hr = m_pDisp->Invoke( 2 L* P6 o* W# W( S- ]# X& [7 Y pokeID, - |4 @2 x( N2 I) E; P# h IID_NULL, 1 ^8 o6 ~/ \: I LOCALE_SYSTEM_DEFAULT, ) u% @7 x5 Z) x& U5 C6 T" D DISPATCH_METHOD,, G1 Q, [2 G3 D- H1 o `1 S0 k' b. ?4 i
&dp,- z* }) `( ]7 V C/ s+ Y) I
NULL, ( a# w# [7 a, w0 X &ei, " a7 @6 P0 [' w; { &uiErr); 5 i- ` {, J0 {. ^) ^* }* |3 d; J* C$ Q/ ?
SysFreeString(topicStr); . R( N4 o' j" e5 Q M/ k7 N SysFreeString(itemStr);6 h2 g8 m/ ?: Y8 s2 @0 G
SysFreeString(valueStr); 6 K% R! R6 i& R, x/ e p { V! d$ p3 o8 A
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??? ) R6 A9 k, S; }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????) e: F0 x% U0 Z6 B) a( ~1 `0 M
" [' q' E4 w1 ~2 u2 M+ ]3 U: ]3 t % S) {; ^/ b# S* _/ K$ H: ]5 c2.这是request的程序1 {) `$ P C% i1 l1 j# w
// Request a value from Extend ) B/ ]# n8 }) q& [5 L% G& }// & f( T o! P* J// Initialize the variant that will hold the BSTR. Set the variant's 8 ]6 V9 t; I7 j/ M// type flag to indicate the fact that this variant holds a BSTR. Place the M% u" B8 v- C5 H7 ]// BSTR into the variant structure. , e( v2 e2 A2 M2 c/ H % e( M6 ]' K q7 |' ^3 y. P6 H: d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); C) S; `/ E$ S) w0 k, B$ ~( n
) S2 @4 Q! z8 n ^2 O2 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # O$ p) v0 \% L4 H; I. W VariantInit(&requestVariant[0]); 2 K1 j$ D# l1 V. F& J+ U% B4 o) j
requestVariant[0].vt = VT_BSTR; 2 J/ c3 l" i9 t4 M/ H/ ^: s requestVariant[0].bstrVal = itemStr;4 B$ m) R7 n+ e" R7 W* e1 S7 C
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topicStr = SysAllocString((WCHAR *) L"system"); 7 a9 Z- ~0 f* G6 P# W VariantInit(&requestVariant[1]); 4 ?$ H* ] X+ d# [$ A
requestVariant[1].vt = VT_BSTR; + o& r9 J1 k1 @, }: @8 B4 \6 v2 H requestVariant[1].bstrVal = topicStr;9 m1 x8 M/ O t" ~$ E* @
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// Set the DISPPARAMS structure that holds the variant. 4 d+ m) D8 e. D9 f/ x0 D% U* K2 `# h5 h) X9 C& x
dp2.rgvarg = requestVariant; & r& L- S I! c4 q0 C dp2.cArgs = 2;, L( @4 s$ c* ?: o: n
dp2.rgdispidNamedArgs = NULL; 0 u# K, L' [' A: g+ f3 y dp2.cNamedArgs = 0;$ B3 t4 V0 I" ]/ W
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var.vt = VT_EMPTY; % z9 ]6 s9 K' |3 \% E. l2 p8 P 5 Y. a' Q% B, z- N S( w" e// Call IDispatch::Invoke() / |1 f. J8 J; d* |, p7 R5 M8 p" i9 N* B
hr = m_pDisp->Invoke(! m7 g9 \5 e4 k
requestID,# G' _5 H/ l! E5 y
IID_NULL, ' h5 m9 q0 f& n+ x6 g LOCALE_SYSTEM_DEFAULT,5 S: w/ P2 R: n
DISPATCH_METHOD, : ^6 U/ ^7 g( E &dp2,3 A2 A% j J/ l( ^9 V. t! `: l
&var,% q+ S3 V8 Y9 b4 f w
&ei, ! ^1 x! N `( k% L' u &uiErr); 3 y! w+ Z' D, x4 g ~; x C3 T/ M- f0 k4 Q) D; { E SysFreeString(topicStr);% z4 P" e( Q8 {- k' n s$ r
SysFreeString(itemStr); ; f$ G1 D5 R7 c) G0 E. x% k请问该程序是获得extend里面的哪个值?" ]7 J$ E; @- U o$ I
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????