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: $ r( S/ p# z) t5 \0 r4 q# w4 `Name = (WCHAR *) L"Poke";; P O' G; |, }
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hr = m_pDisp->GetIDsOfNames ( ( ^$ }# |# J c+ B% } IID_NULL, // reserved 3 u* y7 C% ^3 x, ~: m &Name, // Array of names to get IDs for / g0 C( t0 j/ J7 [. I9 }' c 1, // # of names in the array ( ?+ k5 \. j7 S: m3 u LOCALE_SYSTEM_DEFAULT, // System locale$ T* Q& L& e' n) C+ r# T7 q
&pokeID); // Array of IDs to fill on output " s, K* P+ k* g& c/ c ' ^+ V% M- z5 B1 b6 i6 w# Z) L
if (hr) $ b( I) s& `3 J! q2 F: d- E {" n4 A. U7 _3 r* X6 i8 q' l! d
MessageBox ("Get Poke Unsuccessful"); O) L/ c* Z" T( k+ q. N1 I8 L
return; % S; {4 d' V6 x; P4 X! q } ! x4 S3 i$ r: y$ G3 H4 R: @; C7 Q3 \2 X* S4 }" `3 e! Z0 l
/**************************传递数据给extend**************************************/ , `/ L9 [0 z- t) d0 U0 X! }" M* f+ b3 J pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " k! L2 u4 G; T% m C* u9 J ) L) q; c0 e, \9 N' l) l N8 W
valueStr = SysAllocString((WCHAR *) L"1232"); 8 E+ P; Q0 p1 U5 j- n/ D VariantInit(&pokeVariant[0]); ! a; n1 k9 `) `5 M pokeVariant[0].vt = VT_BSTR; ; P' Y9 n0 ]2 R& O/ e pokeVariant[0].bstrVal = valueStr;# G9 E1 h) v3 ^5 }: @, A/ Y3 v
1 T+ U2 f3 D5 g$ b, `7 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# U1 q- s- K3 K
VariantInit(&pokeVariant[1]); . a: R0 q* @" V2 x2 L1 h
pokeVariant[1].vt = VT_BSTR;. Z1 t0 y4 `' v7 z5 F
pokeVariant[1].bstrVal = itemStr; " V- E9 ]( X8 V8 h0 Q 2 ^5 W- }7 B9 ~' y# I5 K9 l& M! a topicStr = SysAllocString((WCHAR *) L"system"); ; W" @# o' c$ R2 d2 C% O VariantInit(&pokeVariant[2]); : Z- P1 u) G& t: P! O8 ] pokeVariant[2].vt = VT_BSTR;7 _, f: R' `3 I& [7 `
pokeVariant[2].bstrVal = topicStr; a3 l5 L( e+ O+ I; z5 Q n- x/ @9 E- L8 B7 L/ x( o% J$ M
// Set the DISPPARAMS structure that holds the variant.- f4 a/ v* ]$ \3 b0 A3 S& f
7 Y0 V! _$ T, C. E2 C0 U; P+ z dp.rgvarg = pokeVariant; , F% i+ m! C) n7 z dp.cArgs = 3; & b- H6 f3 a1 [8 F dp.rgdispidNamedArgs = NULL; , {( X9 S; ?7 K3 ` dp.cNamedArgs = 0; % Z9 u! b0 Y+ z0 S- T! F; l: X, R! O1 A* b6 p h, X. M
// Call IDispatch::Invoke() " q$ O7 U* ~) [8 v( P. j; ^; B- ]8 `, `
hr = m_pDisp->Invoke(+ h) N( {$ P$ a/ U0 ~+ ]( w7 N' t
pokeID, : r: T: o, D6 D5 J1 i" L7 \ IID_NULL, " u3 @% ]/ J+ ?8 V" W LOCALE_SYSTEM_DEFAULT, / m% k* ]5 a4 i* G; `9 _7 ]) E3 E DISPATCH_METHOD, ; D b9 ^4 e, y9 J/ m &dp, 0 ]# ?# z' O5 Q: n3 d" B$ Y NULL,2 e5 \9 u' T$ O% N/ |; F
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&uiErr);, |8 O# L Q! I9 \
" c' m0 t' e5 `" l SysFreeString(topicStr);7 ]4 B# Q) M( x$ i
SysFreeString(itemStr);1 j& P! @ e5 A/ H# p1 k3 p# g Y
SysFreeString(valueStr);4 Q2 J. d1 ? O' d' J8 Q: [% S- E
4 ]8 f* U U3 w5 M$ k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??? " r) c) L- y( I9 @4 \1 ?' F: x1 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????" k6 t: d% v N) M! |
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2.这是request的程序/ u3 { Z2 H( t' e$ W; z5 `. A
// Request a value from Extend" d: ?( Y j5 C: z
//0 ]$ M1 |8 r3 J+ o
// Initialize the variant that will hold the BSTR. Set the variant's ) n5 [+ v6 D0 i% L: ?, i// type flag to indicate the fact that this variant holds a BSTR. Place the1 n4 a, z+ p3 Z1 P3 Z. t
// BSTR into the variant structure. 5 ?. O2 H6 z) v* r1 M% R, }5 P8 d' H1 ?. {* I1 w
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # Z4 T. J3 ^' b- [3 ]4 Z, t+ `) ~ - ]& m/ Q4 q; X5 K# n) D
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 l0 J; b C* V! r4 a2 G
VariantInit(&requestVariant[0]); 8 Q' t# h0 j$ D# r1 p# E
requestVariant[0].vt = VT_BSTR; 0 @& ?4 N4 `# F7 X requestVariant[0].bstrVal = itemStr;( v" B; Q' C" [
) R, |3 C! N- ?% a+ B" e topicStr = SysAllocString((WCHAR *) L"system");7 x. H2 [4 b+ c/ x; a2 F0 w, r. n
VariantInit(&requestVariant[1]); / T4 ]3 A6 B! \2 e8 e
requestVariant[1].vt = VT_BSTR; + m$ O0 _# _8 H) D( r/ V% j requestVariant[1].bstrVal = topicStr;9 _6 _) @# b" f6 ]3 T1 I
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// Set the DISPPARAMS structure that holds the variant. A' q1 W- |* F* {. `0 C / g- ~: B! }0 G, W( [ dp2.rgvarg = requestVariant; 7 I5 B) E9 j! P O k dp2.cArgs = 2; ) b/ @0 D7 C* q- q dp2.rgdispidNamedArgs = NULL;. @# {6 k" u( `, z. Z7 x
dp2.cNamedArgs = 0; 6 E/ `& Q1 w7 p* y% l' e" i+ F; P U! ^; j6 f! z* [7 c9 z
var.vt = VT_EMPTY;; `8 _& k9 { _' t. F' m& D
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// Call IDispatch::Invoke(). o) f( }" h9 I* a( j5 N
. k9 r0 a2 w5 f7 B! N hr = m_pDisp->Invoke( ! x+ \* f/ W! ~. x requestID, / X% M2 c2 N9 k4 `# a IID_NULL, & P" ] t7 r( N) Z: f A6 | LOCALE_SYSTEM_DEFAULT, & X& N% ]5 B' Q; L DISPATCH_METHOD, : H4 J5 X& N4 [7 G3 E: M7 x &dp2,* ? | {$ L; O& S- d- C* W
&var, ' l$ m+ e1 J. W* e* `0 Z &ei, 8 y- i( B9 h( s% K$ A &uiErr); D C, ?2 W+ B( x