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 x* s$ c ]! i) m1 O
Name = (WCHAR *) L"Poke"; # o) o) ]5 L. o5 u* l( d . \3 x9 p& [; p V: Q hr = m_pDisp->GetIDsOfNames (( J" M! P* s9 f$ M/ [1 {
IID_NULL, // reserved ! P( H' ~2 r" }3 G. N &Name, // Array of names to get IDs for' s- A& x, j9 Q& l* }0 c( t9 P
1, // # of names in the array : L2 q& x, g1 I! w- T- q, ?$ e2 n LOCALE_SYSTEM_DEFAULT, // System locale - f v2 J! c2 X9 f2 O( R &pokeID); // Array of IDs to fill on output/ q; n: N( _ h9 f6 [
4 P- G' t' L# _/ U0 l' s if (hr) w* t2 }1 f8 n0 i9 d2 f { ! f; `/ r1 z6 W7 t, M MessageBox ("Get Poke Unsuccessful"); 4 J$ p% V+ ~! N: _ return;) E- }+ q0 x- n+ v5 f! o
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/**************************传递数据给extend**************************************/ , l; {% ~ V3 A; H8 ~$ d5 y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); R6 R. c* X) }; R
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valueStr = SysAllocString((WCHAR *) L"1232"); $ b7 l( k3 r5 T VariantInit(&pokeVariant[0]); 3 ]! N& e7 V0 x" i" ~- K
pokeVariant[0].vt = VT_BSTR; 0 z9 X; r& T% h# I9 C pokeVariant[0].bstrVal = valueStr; & d, `7 x8 l; ?, _! \ s ) u! } p X0 H5 ] x9 Z! L2 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) V- v b5 B2 b$ W; {' Q) v0 F0 E. r* M VariantInit(&pokeVariant[1]); & z" v0 |' D+ `. L' z
pokeVariant[1].vt = VT_BSTR; & z, ? c1 o- Q5 | pokeVariant[1].bstrVal = itemStr;3 i2 k1 w" c2 O+ A; N
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topicStr = SysAllocString((WCHAR *) L"system"); 6 [& |$ L) K7 s VariantInit(&pokeVariant[2]); ( h0 t' N3 z( c# _" O2 N2 @ U pokeVariant[2].vt = VT_BSTR;9 R- r" e" f9 K5 Q" p! |
pokeVariant[2].bstrVal = topicStr;$ i: @% h a4 R+ ^
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// Set the DISPPARAMS structure that holds the variant./ f- S" f2 \+ C/ V w
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dp.rgvarg = pokeVariant; 7 {# A0 s. [/ x7 B/ d# A dp.cArgs = 3;/ g9 o" v: b. Z5 a0 ~
dp.rgdispidNamedArgs = NULL; Q5 ]! u/ @% n% N
dp.cNamedArgs = 0;7 ~; Z" _( `- ] r, h
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// Call IDispatch::Invoke(); Y& ^' H3 n: h$ c, L- q. }
# q5 s8 l9 }' n. d8 L hr = m_pDisp->Invoke(% \8 ~) V% L) b
pokeID,7 z3 C I A( C' G2 I' U% i, {# `
IID_NULL, ! \1 \+ M2 p+ k7 Q LOCALE_SYSTEM_DEFAULT, 2 [! R7 l( ~4 S; @5 S DISPATCH_METHOD,8 L7 ]3 m5 A, N
&dp, 0 q/ N; E& k* {& j* Y NULL,/ F( H7 B7 V0 b9 D% A0 W
&ei, `$ I' g: ?9 e" z0 B" } &uiErr); 3 I, \- Q# |* ]% M2 R H - W& v' q& Q1 i$ _2 D" g' @: A SysFreeString(topicStr);3 \1 L5 j9 H' ^! Q) o- ]
SysFreeString(itemStr); 1 i/ @3 b0 k# c$ S- N. ~ SysFreeString(valueStr); - k5 a% \: N. t1 t2 F# U 4 c& l& c! u% _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??? . p0 Z. G* U# s- u8 w* I9 P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???? 3 P8 _6 M- E3 } p5 a7 @3 q& Q* G j8 i+ R9 e$ }# g$ T3 k! A' G+ V
2.这是request的程序# b7 \* S& M5 F [5 E/ R
// Request a value from Extend4 X4 r8 d" F: a% }2 w
// `$ X% j1 S6 W5 t+ s9 v. n
// Initialize the variant that will hold the BSTR. Set the variant's + y' J6 B- t4 s2 Q; ~, P// type flag to indicate the fact that this variant holds a BSTR. Place the @6 R, [4 ]5 f1 c X1 B
// BSTR into the variant structure.0 O; J2 o8 `) @) G' y* {! ~
; @" d0 g& Q' B3 X3 C! E& e9 Z6 ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ a# h( l7 v+ `* [/ L1 v/ S M2 y' Q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); t8 a7 k, a, O5 h; X VariantInit(&requestVariant[0]); ' A" N4 P# p0 r# W
requestVariant[0].vt = VT_BSTR;" s. Z a& s8 A. U) l3 u. ^
requestVariant[0].bstrVal = itemStr; w' }+ w/ h# g; }' W$ U$ f6 K ! W) n5 r& |4 h7 ?) z* R topicStr = SysAllocString((WCHAR *) L"system");1 F/ `6 @; k ^6 O: J4 e' w6 s m
VariantInit(&requestVariant[1]); 9 c! f0 c9 r( [$ U" b requestVariant[1].vt = VT_BSTR;& u, \% m l8 o# F" F" Q0 H" k
requestVariant[1].bstrVal = topicStr; 2 G5 M4 i( l! z1 b0 _ 5 _3 U/ J" H; p; L2 x// Set the DISPPARAMS structure that holds the variant.) [& `5 T( K+ Q& L) O
! W" n$ Z: L" O" y: i dp2.rgvarg = requestVariant; 8 K7 x. V- A- l2 C8 f% Q% y$ c# J dp2.cArgs = 2; 9 j3 x8 k# w# g. A/ P4 J dp2.rgdispidNamedArgs = NULL; : D8 L9 D& [$ G- ^ dp2.cNamedArgs = 0;; d( g2 [* ]5 P( b
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var.vt = VT_EMPTY; , |/ x0 t7 a9 o8 y% {) U! h1 {( Z 9 f; r. l! r4 \# G1 n# O" C+ Y: F/ |0 G) X// Call IDispatch::Invoke() 7 \9 B. @ v! V. B4 b( M( X- a! ]( D0 o0 c l2 ?* V2 m
hr = m_pDisp->Invoke(1 i5 T# w: E( ]1 M _7 c( V9 B
requestID, 4 B3 ~4 v$ q8 M1 J$ H/ c$ l IID_NULL, " x- [# U) X+ W1 C% ]8 ?. m LOCALE_SYSTEM_DEFAULT, - `$ C0 @2 @7 p( [, Y! w; F DISPATCH_METHOD,# n' V8 s b/ @3 H O
&dp2, 2 r- m4 R% t k1 m* n9 d9 v4 C &var,1 ~' J W$ ~4 B0 s+ g$ j( v
&ei,# M) p, b2 W" A4 n3 o0 h* v2 L% C
&uiErr); * s0 U9 }. d+ q8 G$ R/ v4 _ 5 t1 V( ] ~6 Z+ h( a3 h SysFreeString(topicStr); 3 G6 T1 l! O7 l7 ?; q% q6 p SysFreeString(itemStr);0 V5 g3 z- E) X* X- N4 F
请问该程序是获得extend里面的哪个值? - Q8 J# Y" [3 P# M6 k2 g2 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????