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: 5 p" k5 t+ p) `# l, U: E2 Y. PName = (WCHAR *) L"Poke"; " B s& {- f) ^& X" G u + E9 \* C2 R! n hr = m_pDisp->GetIDsOfNames (* P3 Y9 ~0 r# \' v
IID_NULL, // reserved& W) a$ ]( k; G
&Name, // Array of names to get IDs for & }' T: `0 G$ v* g$ L 1, // # of names in the array 3 P& f/ D6 \( ^/ _/ u/ g LOCALE_SYSTEM_DEFAULT, // System locale 4 q* R* O; b% b2 n &pokeID); // Array of IDs to fill on output 9 N: T0 o9 d) z8 h1 E3 _! r ( i& F; C) p- P7 I4 S
if (hr) ! L/ S0 ?( O4 i {) R; t3 w8 N A) f9 p
MessageBox ("Get Poke Unsuccessful");, w) u+ H7 S; u, H1 L) z( q3 h
return;) S" J4 j" K/ b# ?
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. p8 b b* V" _0 L/**************************传递数据给extend**************************************/* u5 `' ^) }" I, o/ p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" m7 r$ W5 }6 [
: |# G* o( z5 k: x# m$ H valueStr = SysAllocString((WCHAR *) L"1232");3 @8 I3 V4 Z# z; V
VariantInit(&pokeVariant[0]); ; P* R% u: [* o- A; ? pokeVariant[0].vt = VT_BSTR; 8 u* I3 M8 a( c pokeVariant[0].bstrVal = valueStr; ; W- I& }3 `2 {- `: m 6 N& X! p5 g8 w0 w0 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 Q' _2 f2 V8 r; V8 S VariantInit(&pokeVariant[1]); 2 p7 W; ?+ o. @" h) K; n
pokeVariant[1].vt = VT_BSTR; , R, t% {" I& D+ [, i( d pokeVariant[1].bstrVal = itemStr; % B$ A: \, |5 i0 Y7 @: b* h' r9 z( J& E* A0 Y
topicStr = SysAllocString((WCHAR *) L"system"); + H7 {* c2 }' ~; E* Q% | VariantInit(&pokeVariant[2]); 5 e% R& y! S" A# ~& j
pokeVariant[2].vt = VT_BSTR; ) ?2 {$ S* w8 S pokeVariant[2].bstrVal = topicStr; U. f9 q+ V& C0 i8 t( [' g 6 F3 x4 O0 ]; _8 j5 W- h4 f// Set the DISPPARAMS structure that holds the variant. 6 }4 t# F% c8 {8 o8 z7 a: T) q3 l* k( n8 h* `+ c' m
dp.rgvarg = pokeVariant; . O: B6 y: |% [4 c' Z2 P dp.cArgs = 3;$ p+ A7 L3 o4 G# T( ?
dp.rgdispidNamedArgs = NULL; 6 R' U! `7 I- ^% W dp.cNamedArgs = 0;2 A3 j, J4 n) _/ O* P+ Y0 M3 Y
3 C6 n* \+ \( e5 p5 U9 X
// Call IDispatch::Invoke() / q4 Y3 k2 M6 a; I1 D* X 0 _: A4 a3 T: A! J5 Y, G; j hr = m_pDisp->Invoke( 3 D# q+ r& ]- z9 }' g" m9 C pokeID, |. V) Y K1 J5 X( {+ P IID_NULL,# F' m' d7 @ G/ S: ?; }, t
LOCALE_SYSTEM_DEFAULT, * u; M6 x6 s9 u6 t% |3 N. ~ DISPATCH_METHOD,8 K' I( x) x* C m) U- c( P. \' t: b
&dp, ' ?( k3 P3 @& p# ~% m) B5 g/ ^ NULL,9 M9 ]' V' J+ G) @: h' N
&ei,. R5 y2 p5 V6 y+ \# }
&uiErr); 5 t9 W* c7 J1 n$ v J ' _' u. W' ?" ^9 [) b. |0 ` SysFreeString(topicStr); , g& c, ^( S( V( w. k. K- G SysFreeString(itemStr); : O) A F( p) F* M& E SysFreeString(valueStr); 4 [) c( o: z. M4 m% q# e # W, j% [ _/ d3 ]! T X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???+ [: ^# {# c8 k8 M 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???? - K+ w/ O e7 i) f% d ( a& T! E0 v, f3 L ! \1 y. f0 E Z8 f2.这是request的程序6 {% P# v- P( X8 O% z! G6 A) }9 D! y
// Request a value from Extend' k5 H1 [* j7 i: h6 E7 V( t) R6 v
//& N: @; D, g! V6 T- R
// Initialize the variant that will hold the BSTR. Set the variant's% W! f4 I9 u8 W1 c/ d
// type flag to indicate the fact that this variant holds a BSTR. Place the1 }" G3 J! W+ g0 p$ ~( l5 n
// BSTR into the variant structure. / {1 ~& k2 P( l$ Z1 n* G" w, [' s* P5 B# U3 |$ h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - l" @& r; l* z+ S6 {, U" U ' w0 M. F+ n- b+ ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: g1 e% J" \: b& X7 D$ [8 F: Q
VariantInit(&requestVariant[0]); / x) x0 D9 `3 C! S4 F3 Y1 O# Q9 B requestVariant[0].vt = VT_BSTR; 7 J& ? _1 I0 l: x; w requestVariant[0].bstrVal = itemStr;1 I$ x* J# W9 u, q3 x0 U* j
$ p2 \- ` W/ W. V topicStr = SysAllocString((WCHAR *) L"system");; Z( u( a& J, \" Z
VariantInit(&requestVariant[1]); ! Y; f: N9 v1 z requestVariant[1].vt = VT_BSTR; 4 `0 p- [4 j0 n" c. } requestVariant[1].bstrVal = topicStr;. }, I$ H/ a& E/ V" z$ Y8 `8 Y
/ j" ~! c% t* a: P% ]2 F8 w// Set the DISPPARAMS structure that holds the variant. ) u. ?$ R0 f* P `2 X. t/ e $ N8 [' B. m7 G4 e9 `, d3 \ dp2.rgvarg = requestVariant;3 i* s. _+ C d" _
dp2.cArgs = 2; & J: A9 u; c* e w6 n dp2.rgdispidNamedArgs = NULL; 5 a3 F1 x( N: V% Q dp2.cNamedArgs = 0;5 U9 G, [9 H/ I! V6 s% x
2 {1 n1 T0 N& W: o var.vt = VT_EMPTY;4 _0 R# ]1 }7 L2 Z. ]. a; o
" A* r3 f ?- O# Z% K// Call IDispatch::Invoke()& p0 J9 q' {# Z2 V9 z
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hr = m_pDisp->Invoke( ( |3 E$ K B! d- e5 L) t' e requestID, 3 K# J0 Y) [# a IID_NULL,+ \( ^3 e" D" D5 _* o
LOCALE_SYSTEM_DEFAULT,) v* D$ U8 f3 ?, e+ p* k' y2 o# B
DISPATCH_METHOD, ; g# f9 Q. D/ Q2 m &dp2, 9 h+ L* L- a4 K8 ^7 r# M5 ^) I' H9 S &var,1 r/ g$ J/ n; Q3 |- l& n4 e
&ei, . X R% T/ u( w5 R5 W1 ` &uiErr);+ {. q/ Q! h5 \- S2 s" X3 v