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: 3 e- y7 i7 V xName = (WCHAR *) L"Poke";) X" }9 O- t1 S
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hr = m_pDisp->GetIDsOfNames ( : U2 ~5 y D3 q- z: k' g IID_NULL, // reserved 7 A" N- G1 n# s6 n &Name, // Array of names to get IDs for6 o- l+ P7 @) b! d) f: o1 C
1, // # of names in the array4 C0 U& }6 C0 \" b7 ?! `( N! w
LOCALE_SYSTEM_DEFAULT, // System locale, l2 y3 R2 m9 [, o, R+ {
&pokeID); // Array of IDs to fill on output ' l4 l: R r6 D) `% ]# H: g / ^/ R3 f+ _8 E; g' N if (hr) 8 a. c" q* N" | {% e. b" P1 Y7 a8 \7 [. v' n% e$ I. h
MessageBox ("Get Poke Unsuccessful");9 i/ }) L5 @$ u7 U( E4 e
return;; W F6 F/ f+ R+ d: h
} $ g) g( y2 I& m$ k4 ?8 o, r- [" z" l
/**************************传递数据给extend**************************************/- V- ]& y. q# ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 ?- G+ @8 R+ Q# \$ u 4 `: }6 C. u C. ^ z valueStr = SysAllocString((WCHAR *) L"1232");! y; S6 ^* Q8 `6 A
VariantInit(&pokeVariant[0]); 8 j3 X3 i" _0 a3 x
pokeVariant[0].vt = VT_BSTR; % p& `) ]( g3 M; P- P pokeVariant[0].bstrVal = valueStr; + W2 S: S" k h" x$ m: T; |* t2 @1 Q 0 `5 |! o2 V, R' t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% I, l9 Y, S- ~
VariantInit(&pokeVariant[1]); , P- N3 R: c8 u$ `- z8 J( {5 @ Z
pokeVariant[1].vt = VT_BSTR; ! W8 W1 G* y0 \/ n- d$ C pokeVariant[1].bstrVal = itemStr; & A1 M6 v+ k) J" X( g T ) C' s/ d' L x3 [9 J' \7 c topicStr = SysAllocString((WCHAR *) L"system");" e) Z' X* l6 X, N
VariantInit(&pokeVariant[2]); 1 l& Z8 ]1 \, E8 a0 U
pokeVariant[2].vt = VT_BSTR; q7 ^% n5 r- ]! B, K
pokeVariant[2].bstrVal = topicStr; 1 a5 } I+ r7 O5 @; [* S! j) Q, V6 }" R; m0 j7 C
// Set the DISPPARAMS structure that holds the variant. ( \' | f* q o/ e5 G9 Y2 q+ Q - m4 K$ Y2 X1 m dp.rgvarg = pokeVariant;8 ^# ~* [& _# D- ^
dp.cArgs = 3;! |$ Y3 \" n+ I' ~3 N5 M
dp.rgdispidNamedArgs = NULL;* @/ v5 b. v" V
dp.cNamedArgs = 0;* F% j2 V4 w7 X8 K/ W
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// Call IDispatch::Invoke() w. r) }8 e2 V$ c
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hr = m_pDisp->Invoke( : m+ [/ Q G0 K' z4 t& f, v pokeID, " m. x# l3 Z" `+ E i IID_NULL,& Y& w9 b5 a4 Z5 x% t; R4 X, R
LOCALE_SYSTEM_DEFAULT, 1 O/ G' m. j% z$ Y3 C$ K u DISPATCH_METHOD,; P: D1 h4 K5 T. B3 B( J" P1 O
&dp, " R- a s; | {1 f- o' Q* ]- u NULL, 0 a4 h& L( ]$ D' H- o3 h &ei, 2 i/ s/ i" o1 e/ l' L) U/ E &uiErr); ( F4 x# ]3 f: l; w# P! i & {/ S: E+ C! l8 C/ Q: E SysFreeString(topicStr);7 Z$ S) n: W2 w* W' Q5 @( c4 G
SysFreeString(itemStr);2 [2 V2 R8 P# m3 W
SysFreeString(valueStr); 7 V! `3 s0 P; _9 Q+ i1 n8 n8 H! g/ v- I: N' ~$ Z
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???3 d9 ?, f: c* f$ y5 H9 e! \5 e
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???? ! }2 o }' u; |- l; m! K% U) M% f5 W& v$ S; {5 H" i
: \8 f. H* G) |( ~, T( e2.这是request的程序1 m" [9 H0 l5 P+ Y- Y1 v
// Request a value from Extend 3 |, V1 [, e# X: j7 n//* z1 Z- y0 y3 h( ^
// Initialize the variant that will hold the BSTR. Set the variant's; v8 K& L2 T6 ~2 O" I9 v4 j
// type flag to indicate the fact that this variant holds a BSTR. Place the & K) O1 \( y3 h4 ?( }: I% E// BSTR into the variant structure. 7 E! q7 m& _9 C 0 j3 q- C) [5 \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 Z, |2 W# W% D% g9 S) @; s- h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 U+ g# Z/ I* F' t M. } VariantInit(&requestVariant[0]); Z/ m; H% s9 A# w0 r+ {
requestVariant[0].vt = VT_BSTR;+ A- {0 @8 j. t- x; g4 h
requestVariant[0].bstrVal = itemStr; / R5 i# \1 W) { 8 ~; `0 n+ u2 K$ a) i! o9 o6 W topicStr = SysAllocString((WCHAR *) L"system"); ( x) j2 b8 T: M/ N VariantInit(&requestVariant[1]); 1 I& U) k' @- b/ ~
requestVariant[1].vt = VT_BSTR;$ c* x z- F# l& t( H! Q s6 F
requestVariant[1].bstrVal = topicStr; 5 D7 w i, \5 ~* Q. q& f! @5 t- c, o& s2 v# c9 t6 v/ K" Z
// Set the DISPPARAMS structure that holds the variant.: q f- W, N4 u0 O6 u# h
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dp2.rgvarg = requestVariant; - p) d3 Q: ?7 g) w, w% q3 R! W dp2.cArgs = 2; ) D) c. u5 V: | dp2.rgdispidNamedArgs = NULL;/ N' a! T7 W5 e7 }; h+ Q6 d, [
dp2.cNamedArgs = 0; 2 p3 ?# X n: s% S2 h# \ : g% y/ X( h8 x: N var.vt = VT_EMPTY; 1 N" d8 O, }) U( [% M, r2 t9 L# ` _
// Call IDispatch::Invoke() a- p: L$ U5 N5 U, f1 |
+ _2 N, g7 B' E$ a/ s7 l hr = m_pDisp->Invoke( % V- L! ~# y6 X5 D$ J4 O" j requestID,7 v. c( M, M; f) e2 ]
IID_NULL,. u& h3 L$ B9 E% _8 z( L" H+ N. A
LOCALE_SYSTEM_DEFAULT,( N( N6 w% y$ K- v
DISPATCH_METHOD, - o9 k8 o, c; |+ [% `# | &dp2,; R) ]' Y$ v6 X5 `
&var,, E7 `' R+ ?# c: }+ ]: ^& G3 r
&ei, B" Q# Y7 D% l- v: l* W &uiErr);; I% n* {# q" w+ {. _/ d4 Q
. W. I* n; H |& S! ~5 B# c SysFreeString(topicStr);+ m$ z) o, U2 ?; C) S
SysFreeString(itemStr);' h* R6 M2 y( e
请问该程序是获得extend里面的哪个值? % @% Y! o0 x( U$ w8 s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????