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:: g" D' J0 p4 G& G; r1 P7 d! L: m
Name = (WCHAR *) L"Poke";+ f+ a0 N4 c J6 }! z
; [: ?& O# R# R9 n4 N hr = m_pDisp->GetIDsOfNames (( q+ [1 n# a) K
IID_NULL, // reserved7 s! b" N6 s$ d# }8 V3 Z& j: H2 y
&Name, // Array of names to get IDs for 8 S/ _* U6 b! E5 B 1, // # of names in the array- X4 U4 X" _$ f1 C+ Y+ B& P- _$ U G
LOCALE_SYSTEM_DEFAULT, // System locale( t' r) [4 C4 d2 R2 i& Q- I
&pokeID); // Array of IDs to fill on output 4 K6 U8 G. P" B% c1 U' P9 g 1 L9 i6 n4 ~* P# Z if (hr) 5 u* Z; `1 W, f6 e& W. p {) @; Q% G8 o" w% L6 h
MessageBox ("Get Poke Unsuccessful"); , j* i( c* O8 f. m return; / u% X, B8 ?! x* X( i. ]% D } 5 i* q: s3 a/ M5 c6 Q2 `+ o$ _ 6 _7 R( Y2 q/ N: Q6 }6 Z" b& x/**************************传递数据给extend**************************************/1 X: v5 r3 O, @( Z/ D: `4 ~; f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - s- x( `! G# p! u9 I : ^. c' x* K* V& | valueStr = SysAllocString((WCHAR *) L"1232"); . o. I- A' u9 L VariantInit(&pokeVariant[0]); " e0 e& p4 {0 T: b1 j6 S/ v* {
pokeVariant[0].vt = VT_BSTR; 0 w3 e" q: z9 @ f- L! F( b pokeVariant[0].bstrVal = valueStr; : g- L& s) W/ q! ^: {5 s% O2 V2 {5 D3 u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ], |! B$ A7 o
VariantInit(&pokeVariant[1]); 0 ]% Q$ F/ M" ]" C
pokeVariant[1].vt = VT_BSTR;% m4 r4 ^/ l7 ^- a; i# R, W) e
pokeVariant[1].bstrVal = itemStr; ?& p' S! @" i: [4 A
6 j& H a! U A% W3 n7 k& I topicStr = SysAllocString((WCHAR *) L"system"); 8 T @' E. W- z8 G+ l* r& i/ ~ VariantInit(&pokeVariant[2]); 6 N0 ]- [/ A3 B. ]9 s9 x0 P
pokeVariant[2].vt = VT_BSTR; & O3 M/ r# M+ I& b6 m# a pokeVariant[2].bstrVal = topicStr;0 y: Q4 s; y5 { b
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// Set the DISPPARAMS structure that holds the variant. k. d; l: A& o- ^( K6 Y$ @ ! u5 w; x% i% ?* { dp.rgvarg = pokeVariant; . R, H# x+ Z3 \! p" Y; l0 V$ V dp.cArgs = 3;3 k8 a" i& a& ?! |$ [% |/ ]% ?* q
dp.rgdispidNamedArgs = NULL;# @9 Z$ S7 q4 ?) [* G
dp.cNamedArgs = 0;& ^! e$ m1 q; Y5 }: ~6 D( A% ]1 B! i
! f4 w- m* F5 Q0 q1 a0 A
// Call IDispatch::Invoke() ' M0 N7 r! X4 s- S: e / |2 M9 Y n2 D* \- ?% L, R hr = m_pDisp->Invoke( 3 m& ?+ h- z! d# P pokeID, 5 `( E) \: \, r+ i a IID_NULL,2 A% l, d! o9 J2 M+ g+ f/ O
LOCALE_SYSTEM_DEFAULT,; q* f* b* v) j
DISPATCH_METHOD,3 y0 O, H- P2 c
&dp,7 _+ V' \0 M2 ]* g6 _
NULL, ! n9 E& K8 h1 U: \- r &ei,% x+ @9 l) ^& m
&uiErr); 4 c+ U2 L: R$ A& n: v4 m6 j% V
SysFreeString(topicStr);7 z: |2 q5 e. `: |- L! Q
SysFreeString(itemStr); " G" q4 l) l% L SysFreeString(valueStr); ; g8 I) h: k4 H; c( Y8 M) z& V - w$ B: ^3 _0 a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??? % M% ~( Z0 o' t* Y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???? + u# e0 R: ]# V* b1 n S d) k6 M7 k1 } % P2 v% f& s7 G( ^" w2 ~ 6 u9 t4 W% B7 m; ^, I$ a! S9 }2.这是request的程序 ' h& [* g5 `9 O6 k+ l// Request a value from Extend- e2 x# _1 N. i7 B' O0 S
/// I6 D* F8 N# t' R s: A
// Initialize the variant that will hold the BSTR. Set the variant's3 L: F I4 _+ h) f8 Y
// type flag to indicate the fact that this variant holds a BSTR. Place the 0 e. e# G, o }4 M) e// BSTR into the variant structure.; ?8 _! u& V- l N0 l+ k& P
3 A& H* b6 l* J/ G1 r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - A4 @ x/ q+ x5 X3 M / A0 Z( B7 m) w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / k: l* W6 |/ g2 ~, d, m VariantInit(&requestVariant[0]); # @. Q) H$ i5 [, D0 t requestVariant[0].vt = VT_BSTR; % r3 V0 Q1 e- J" D2 _ requestVariant[0].bstrVal = itemStr;* G% @* `2 M7 s j6 K
6 B; Q" z c9 N3 I topicStr = SysAllocString((WCHAR *) L"system"); 9 C* {1 s2 e. I8 i0 v VariantInit(&requestVariant[1]); : G' R( h# i o% v
requestVariant[1].vt = VT_BSTR;2 y9 W9 ~ Y1 ~4 B3 r
requestVariant[1].bstrVal = topicStr;+ @) O" H' M! ?7 Y
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// Set the DISPPARAMS structure that holds the variant.9 R. Z, i. B$ I/ x3 A& J, o; T
1 e" N1 d, R& ^8 t% u5 J J
dp2.rgvarg = requestVariant; & `1 r4 i( ]) [! s dp2.cArgs = 2;/ ?3 Q4 ?9 Q4 O# j0 U4 O
dp2.rgdispidNamedArgs = NULL;8 a& u/ r+ ]. L; v, |. M" i
dp2.cNamedArgs = 0; 4 P7 Z$ k: l/ _1 E) F8 s$ ?" ^; i$ t, S; O1 m2 R2 C( J$ G3 r2 m
var.vt = VT_EMPTY;. X3 u2 o) K* R; f: i' e! Y% B* y
9 R" P$ ~' a3 `" _// Call IDispatch::Invoke() ' L( b, p+ O; }! a6 o2 C( r, @9 |- F
hr = m_pDisp->Invoke(( z" R6 v6 M- P) I+ u$ p
requestID,. u$ v% v* K' V7 b
IID_NULL,! w0 J* Q$ a9 U+ G/ ~0 p+ S
LOCALE_SYSTEM_DEFAULT, + f# \4 [) T! u0 Y1 ~4 W# U: p DISPATCH_METHOD, 2 ?, l2 Y$ K* H+ G. D# W# q &dp2,' R$ |) z( s8 P) S/ U* I8 g
&var,9 D, Q/ W) \. C- y
&ei,) u4 s" Z" ~+ ^9 I
&uiErr);) F' ]; d- z1 V' R' n1 |' d: `
. s1 W0 B6 R0 `; F
SysFreeString(topicStr); $ L% F/ [, z2 |% }6 ? SysFreeString(itemStr);; a1 k% L) a8 f d# j, A
请问该程序是获得extend里面的哪个值? 5 I# q# r- V0 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????