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 o3 y9 W, t/ j9 O" w3 U
Name = (WCHAR *) L"Poke";: I$ E @0 C5 D1 l
& H6 ^2 ~5 |6 @/ P1 \# l! V/ q hr = m_pDisp->GetIDsOfNames (- _( n6 ~; y! ~% M7 I
IID_NULL, // reserved% \% E4 m/ F8 B1 P0 n* V
&Name, // Array of names to get IDs for) A7 \9 _9 k+ d" P
1, // # of names in the array ) h) P$ D1 G; A! o& E; V LOCALE_SYSTEM_DEFAULT, // System locale 7 q' V" f& N+ s; o &pokeID); // Array of IDs to fill on output1 M* y- K( |) r0 k
8 b9 ^- s6 y9 e4 C2 _ if (hr) 6 x" n! j8 ~' d* s { c ~9 Z' O* n- [; Y
MessageBox ("Get Poke Unsuccessful"); . ]6 O, f+ y0 r& g8 H8 } return;/ g7 b/ G8 M" @8 E
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/**************************传递数据给extend**************************************/ w% {' K+ W# N4 W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # @3 M/ _( d+ l$ b- K ( I. ]2 }3 G4 m4 v- q9 p% y; ]
valueStr = SysAllocString((WCHAR *) L"1232");0 w1 i+ c9 }" b
VariantInit(&pokeVariant[0]); * @1 z- W6 `; ]
pokeVariant[0].vt = VT_BSTR;" j1 A4 _, s% Y+ S" q/ [0 y( z# C) ^
pokeVariant[0].bstrVal = valueStr; . m6 n7 |' U! E' Z( N: O- _' ~3 W- \; O4 _5 T% o6 f5 F. v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ] e' Z/ _4 z {
VariantInit(&pokeVariant[1]); $ F O1 a' S0 t( k9 t' ?2 w/ A
pokeVariant[1].vt = VT_BSTR; $ I4 X2 f" i1 B6 h O0 l$ v" h# V pokeVariant[1].bstrVal = itemStr; ( @4 x" n( A& Y# Y1 }/ R$ ~3 f' b) S8 ]9 F5 i' Q, Q/ N
topicStr = SysAllocString((WCHAR *) L"system");/ p' O+ d( P2 d% n
VariantInit(&pokeVariant[2]); 5 p. k9 M' {+ O9 O, U' {8 n
pokeVariant[2].vt = VT_BSTR;. w" d& D* M$ V8 D! e9 p8 {
pokeVariant[2].bstrVal = topicStr; 0 }8 h9 R4 k/ x' u! s f5 g8 M! Y8 l
// Set the DISPPARAMS structure that holds the variant. " u6 C- u* v* x" Z5 Q% p- ]9 E% l3 m% o# ~
dp.rgvarg = pokeVariant;+ N9 b, X! {: U. G3 d( }
dp.cArgs = 3; & u: Y3 Q7 B/ U, U dp.rgdispidNamedArgs = NULL; & o' \; S, w7 N/ R% Q6 ` dp.cNamedArgs = 0; ; a0 a! L0 V& ~2 {! P4 k 5 E. M3 B& ?) w7 P& q; ^9 Y; L// Call IDispatch::Invoke()" `! x1 M; q3 k9 ?# S$ \" E
/ e& S/ E" ^9 e hr = m_pDisp->Invoke( : y+ u l- G" m1 { pokeID, 5 ~/ L* q# W0 r# i2 \4 R! { IID_NULL,; J* M! t T4 W: I
LOCALE_SYSTEM_DEFAULT, / D8 S5 r, R+ H) d9 ^4 L6 E DISPATCH_METHOD, ; r6 J. X# ~$ O* b0 f7 N &dp, N# u/ ~: I" }3 K x) T+ B
NULL, 9 z! e. F. H9 V4 L. c6 W &ei, ) }3 |7 H1 x+ f( n, z+ H! W &uiErr); 4 }9 z. E: L8 I5 r2 [9 \# k / _# ^! I; N3 h5 t, j% e% I4 E SysFreeString(topicStr);6 N4 y( Q9 r) F& `& G$ h& z
SysFreeString(itemStr); ' B4 l! H* ~& y' ~. H b' W SysFreeString(valueStr);' X& M* B5 U' o4 y2 T: A3 H
6 H8 o- W9 I7 ~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??? : k2 n$ w" Q9 l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???? # S) _( H3 X$ J$ [0 L% _+ E ) Y% s+ @. i" `! x* Q # @7 c C3 Y( h& @" g6 b2.这是request的程序 0 R' Q4 w ~7 K5 q# h// Request a value from Extend * ?; s/ U7 s: ~. a1 R//' t N- }4 ]+ k. {" c" C8 |
// Initialize the variant that will hold the BSTR. Set the variant's ) t2 X/ F! }2 L// type flag to indicate the fact that this variant holds a BSTR. Place the' B6 f7 T& ~! ^
// BSTR into the variant structure.% r, {9 k3 A. e9 s% r8 l
/ n8 R( Q2 V' O; U- Y( S3 W: R: u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 w/ M$ w: F0 f6 @ / R1 T9 m! U; `6 k3 o: \
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; t+ O* }- |1 N D1 E
VariantInit(&requestVariant[0]); K! ~5 ^. {" R9 {4 o requestVariant[0].vt = VT_BSTR; ; P8 ?. G& h8 R0 _) M% n; U requestVariant[0].bstrVal = itemStr; ( v% I# S6 y( J H; ~) r% c5 H* u5 m4 u/ O. C
topicStr = SysAllocString((WCHAR *) L"system");+ Z, p; v# h' \5 }3 [
VariantInit(&requestVariant[1]); ; ~+ r, X9 L( t' \2 y& {6 P
requestVariant[1].vt = VT_BSTR; 8 p# e! k% s S! g8 `9 m requestVariant[1].bstrVal = topicStr; 1 L" l4 l! J& J% b! ~+ T6 {5 b+ p& j9 x3 E- M8 V6 D9 N0 ^- z z
// Set the DISPPARAMS structure that holds the variant. 1 t: d/ }; R+ n5 r1 I# `. G' k6 [$ e2 L+ [* R& [
dp2.rgvarg = requestVariant;- h8 K( ]' U- e* a& ^$ P
dp2.cArgs = 2; 1 ^+ j# t+ L0 z- R) V8 ~2 K dp2.rgdispidNamedArgs = NULL; 9 @6 B. o3 y7 A/ L6 G dp2.cNamedArgs = 0; / f/ {) }' E2 {( s: Q E' ?0 O3 O9 k; Q# y) Z
var.vt = VT_EMPTY; # ~1 K; b4 N; l! a6 f9 r% Y o0 |1 U4 T S, _7 M
// Call IDispatch::Invoke()4 G2 t7 f" G j% h
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hr = m_pDisp->Invoke( # j. C" _/ Y& m' E requestID, ; d6 } `% W: ]2 M s IID_NULL, 5 o0 W. t. |& ?" G LOCALE_SYSTEM_DEFAULT, 9 J4 N! y% ?/ a' \$ ^. D DISPATCH_METHOD,! M1 l$ J8 o! [# ?" @' s6 C& p- L, `
&dp2, $ l# f+ }. s7 x" t: [2 Z &var, 5 b+ ?8 k8 V& {7 _ &ei,6 }6 s" u. u5 p) F
&uiErr); 1 h0 S* x, \( @& R6 V4 Y7 A* A$ g* ^6 O& L
SysFreeString(topicStr);" Y8 B$ C; C7 ]2 e8 C0 G/ X
SysFreeString(itemStr); $ @! D( X* K) \" Z" E0 l! {请问该程序是获得extend里面的哪个值?9 C0 n- F; ^5 b/ L! C& ^$ I( W
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????