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: 7 G! j! [ f. U3 f- Y% IName = (WCHAR *) L"Poke"; 5 z0 H: i/ v0 F7 v0 w ; z8 k' n& B9 z3 h$ h6 a, @8 t
hr = m_pDisp->GetIDsOfNames ( 1 e% l( J/ s: L! h2 `& ? IID_NULL, // reserved 5 o: L9 E# H! X &Name, // Array of names to get IDs for9 X# F( n: D4 g. m: s
1, // # of names in the array ' n4 t3 W, W; \" F9 }: a6 [1 f2 U LOCALE_SYSTEM_DEFAULT, // System locale: u9 _! E& F7 h/ j
&pokeID); // Array of IDs to fill on output * F! z! D+ e+ ~& D1 ]2 m+ z 3 i+ O8 |, z4 O/ `2 x+ q9 b. g) @
if (hr) ; w5 g z l ?5 S: o' O1 }$ w {% b& i+ r$ u1 w; y- J. ?
MessageBox ("Get Poke Unsuccessful"); $ k* U4 A0 v. r8 V& r return;$ h4 \' _5 A. d8 p0 r6 n! h7 ^. D
} 3 W6 D( r7 C% B# i' D" F7 f 0 h' f. i0 Y; R# P; `8 ~/**************************传递数据给extend**************************************/ - C4 b: Y" C: _+ l" m5 @& d, Y, E$ m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 O1 e# v/ P- p/ G9 L# R' s
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valueStr = SysAllocString((WCHAR *) L"1232");) g# H3 {4 e4 F, N* c
VariantInit(&pokeVariant[0]); 8 W) [ I9 w5 F% i* t4 z
pokeVariant[0].vt = VT_BSTR; 1 I/ I, z/ c2 h* _) e pokeVariant[0].bstrVal = valueStr;( _, Q' Y5 g. R$ z( z( b5 f
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( |' s) f) T# W8 \1 k
VariantInit(&pokeVariant[1]); 3 n" @* }& z3 B9 ?4 T0 ]2 H pokeVariant[1].vt = VT_BSTR;3 i6 S7 S0 b9 [4 O
pokeVariant[1].bstrVal = itemStr;" r i5 `+ P! l; `4 b2 E
' u* x9 d6 S$ K9 T% i1 V& {
topicStr = SysAllocString((WCHAR *) L"system");* b. B- c9 i, N1 N% q
VariantInit(&pokeVariant[2]); " ]. i" L0 I2 r# R/ x! a pokeVariant[2].vt = VT_BSTR; , ?2 k. X/ N' J: {/ t( @" y pokeVariant[2].bstrVal = topicStr;8 |. \3 F. A" j" q) z" N }
& r4 |4 c/ X, p. f0 e: N// Set the DISPPARAMS structure that holds the variant. " L8 D. o( j) I: b7 D2 o" A 0 {5 ?2 ~4 e6 w9 Z6 t; x1 k$ R( ` dp.rgvarg = pokeVariant;8 G! x3 T# N) k ~/ M, f
dp.cArgs = 3; ; m: L+ q0 s! o$ f- C: @ dp.rgdispidNamedArgs = NULL; / @- S1 X& l8 h9 D dp.cNamedArgs = 0;! o/ p" p# X% I* J
* z, w- X. H: i# ^7 _. [
// Call IDispatch::Invoke()9 L' b; m* R8 C: Z5 ?- K
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hr = m_pDisp->Invoke( / s! m3 R8 `- t; F9 O; B1 A3 m pokeID, R! x+ b, C' p. q4 N# @
IID_NULL,8 }, z" B/ _% Z J
LOCALE_SYSTEM_DEFAULT, 8 P3 O; |7 E" L, T) s' d7 m) N& G DISPATCH_METHOD, ! D2 a k6 P2 Q. U( H &dp,( q2 v$ H+ x- Y" y7 L4 J
NULL,8 \1 |" |8 a8 H: T# i. s
&ei, 4 ~2 u" S9 }6 m) H: G, u &uiErr);9 z+ p* v. v0 i6 ]7 s2 W
& U T: p' G: H! k- o, I- M SysFreeString(topicStr);1 N# Y/ L- n& C G
SysFreeString(itemStr); ' k3 T' X" Z* j; M* h SysFreeString(valueStr);" X$ l. N+ i- o
6 h* B' j& ?# T \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??? - _/ b* v( P5 d9 I) J$ C6 a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 J$ i% {5 k; h8 ?* l2 ?3 t3 X
/ E8 b/ `* Q* R/ _1 M; k6 Y 8 h4 a* j1 N! A8 ~5 _3 M& {( o2.这是request的程序 1 D' k7 \3 f; A. |/ R// Request a value from Extend4 s* M) Z! { I8 t4 ~
//+ {! ^0 Q% j5 G7 O; J
// Initialize the variant that will hold the BSTR. Set the variant's - u3 J0 h; L' b, a5 j// type flag to indicate the fact that this variant holds a BSTR. Place the, _4 Y6 l, {% M6 H
// BSTR into the variant structure.0 |$ q: H+ A L# z. L; K
' H |6 P r4 G/ _7 s: S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% x4 {5 e; ^3 R0 w4 L
# @7 }) @& u5 J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: B! R, ?! Z$ a& X) k
VariantInit(&requestVariant[0]); 7 N, k' f" A9 k+ j3 G" M
requestVariant[0].vt = VT_BSTR;/ N! i5 e9 J/ I9 Y& F0 u. ~: A+ E
requestVariant[0].bstrVal = itemStr; - Q8 f6 _+ ]0 }: ]: p# k6 C1 i: K8 \0 r4 ]) W# }3 m+ N
topicStr = SysAllocString((WCHAR *) L"system");9 r$ | ]2 y2 ]+ J: O& m
VariantInit(&requestVariant[1]); 2 V; R/ Z' f* h% j1 U
requestVariant[1].vt = VT_BSTR; + `- J( E" E' o requestVariant[1].bstrVal = topicStr;+ R/ `+ ~3 D3 I* \+ u
6 G3 r" Q [0 j5 i4 t( ?, s- g$ K: T// Set the DISPPARAMS structure that holds the variant. 4 V$ c0 n& W( ^/ \) o/ Y. U+ p7 W4 F6 H: j, P' I* J6 |
dp2.rgvarg = requestVariant; ' a4 T+ J9 `6 w dp2.cArgs = 2;5 K; `9 R \' C' d [, Y/ B$ \
dp2.rgdispidNamedArgs = NULL; / `4 j5 s/ j6 h! ~ dp2.cNamedArgs = 0;# t' r' P: W, [6 q/ {
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var.vt = VT_EMPTY; 3 U7 F& l. V# E5 B0 Y7 S0 q6 [8 U
// Call IDispatch::Invoke(); X/ E% \* _1 x: [9 V2 X5 k
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hr = m_pDisp->Invoke( 2 \: M9 F' X) N requestID, ' n! J, D* `* W$ Q' q4 a* Y IID_NULL, , _/ U, x1 [3 ^4 ]. S3 O LOCALE_SYSTEM_DEFAULT, 7 \, b7 L+ W8 p/ n/ F DISPATCH_METHOD, - Q/ T0 D- M! s6 W, c &dp2,, O7 P, P! g7 Q4 g+ o0 P
&var, x v, ~% A9 j5 @' E
&ei,: }& q& S( ^6 d. f! j
&uiErr);* Z6 p* G) ^: k' J( [% X0 ]8 _