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:# v1 I, O3 V, Z9 p+ [
Name = (WCHAR *) L"Poke";3 p9 |$ G* J& {
% l- ?, w0 a0 @ hr = m_pDisp->GetIDsOfNames (7 l# q0 j8 J: Y0 m9 t
IID_NULL, // reserved ; p2 x" K8 F E8 i4 F. k &Name, // Array of names to get IDs for m3 J! h* t" e" n& Z% s; r" P, v 1, // # of names in the array! y) t/ `- E$ L, F M, |0 p9 U) |
LOCALE_SYSTEM_DEFAULT, // System locale# J# Y+ `0 f( ^ w
&pokeID); // Array of IDs to fill on output" d* Z N" n, m( _
; H) ^' T+ _& p1 d' _ if (hr) ( X" M, x8 n! F9 Q' v4 Q% { { 6 U6 E% j8 G1 J MessageBox ("Get Poke Unsuccessful"); 6 ]% A; E& r- H return;% ^, ]6 a; X' e* J. W/ u
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/**************************传递数据给extend**************************************/. w$ f; Z; ^* B/ h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + E1 ]/ w( b, r$ _2 W ( V4 y. Z3 A) c* I! w& X valueStr = SysAllocString((WCHAR *) L"1232");6 e6 k; N2 ~1 R1 ~: F
VariantInit(&pokeVariant[0]); " X( X, ~1 K8 i; z" p# R# Z pokeVariant[0].vt = VT_BSTR; , r8 x/ [6 H1 ? pokeVariant[0].bstrVal = valueStr; . g, I' V* i9 s& T& y* d# M* J# \: l; W* w) `5 ^2 {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " J8 `, R9 P8 `& h; T& v. } VariantInit(&pokeVariant[1]); 3 k( f4 B" [! I/ C% c8 h8 I pokeVariant[1].vt = VT_BSTR;, i3 v; ^9 t% w# x2 a0 v& H
pokeVariant[1].bstrVal = itemStr; # Q, T2 h9 C/ ~" [/ N& I, Z. Y) O% h; O2 A' q" _; c
topicStr = SysAllocString((WCHAR *) L"system"); 9 P0 _- a6 O/ i$ | VariantInit(&pokeVariant[2]); # l9 A } a# p, ] pokeVariant[2].vt = VT_BSTR;1 T4 J, L- A! n( ?$ n
pokeVariant[2].bstrVal = topicStr; , U2 `" M; M3 G " J6 s1 t% T2 i' X |1 W// Set the DISPPARAMS structure that holds the variant.4 [5 B9 ?" V' n- u6 e7 W( Y
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dp.rgvarg = pokeVariant; ) `7 y9 P# ~* f4 c s$ r) D dp.cArgs = 3;% |1 S1 F1 ~' b+ m( h) ^5 J
dp.rgdispidNamedArgs = NULL; : h6 \. K+ ~6 [0 R) q; ^, g dp.cNamedArgs = 0; ) }! v) p* n& `7 Q- ~6 G: Z+ ] : L; ~* W! H( |# r) r W; B$ y// Call IDispatch::Invoke()2 Q3 Y! }9 c8 {& e+ M4 F
; O. O: u! z9 y$ } hr = m_pDisp->Invoke(1 L& g# }, X& `0 a" I& e
pokeID, ; {+ w Y6 A- R6 n- @0 i IID_NULL, , P' W0 T8 y! \+ U LOCALE_SYSTEM_DEFAULT, ) ^# u `! O/ ? DISPATCH_METHOD, 9 z& E/ M- S; t8 {5 Z &dp, ! S8 i9 ^6 L" [( c. S) L NULL, + x1 w3 T0 J( [; H &ei, # J o7 U! A7 q/ L+ m &uiErr);+ Y) s4 _- [. @0 ]( F
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SysFreeString(topicStr);; k- e( `+ L0 X5 ?( u
SysFreeString(itemStr); 3 M6 _; }( ~9 B3 L! w5 p# v) k SysFreeString(valueStr);( g. s+ L0 I Y ^
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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 ~: x, x% }# X* R5 o
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????4 Y% T% t* o# S4 h" N: m
: I# w- B, J; S7 i( _ 3 E6 H" w/ v6 ~) K k$ _2.这是request的程序- x/ w, Z2 {; L& ?( |; n
// Request a value from Extend9 B- f, t5 P, M' w3 N
// / k" ?' S6 B! o" }( ?; w; }9 ^3 S// Initialize the variant that will hold the BSTR. Set the variant's 0 G5 S% y: |, {/ _// type flag to indicate the fact that this variant holds a BSTR. Place the ' |) U3 a6 \$ u% P9 Y. Z// BSTR into the variant structure. ) b0 K1 \8 h1 M7 a- Z% v, B( F0 j: n: o/ A1 F: T/ x( h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 ?, I/ D B5 E' W( o( x
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . Y7 A3 `5 s3 o' v$ U3 a VariantInit(&requestVariant[0]); ( Y5 a3 j: `8 ]' s. r9 p1 J
requestVariant[0].vt = VT_BSTR;. F8 _2 P ?: N/ X4 g0 Q
requestVariant[0].bstrVal = itemStr; % Y Q: ^5 D8 a# f7 I: U: y+ H8 I' C( C* {) ]* Z6 @
topicStr = SysAllocString((WCHAR *) L"system"); . P: P: ?: V9 M& v; q! S {) H- k VariantInit(&requestVariant[1]); ! l! f" l# n9 ~( d* o' C1 n1 s requestVariant[1].vt = VT_BSTR;6 u i3 ]; V2 q1 G1 F3 t) S3 _
requestVariant[1].bstrVal = topicStr; ; t: m l" H+ |/ u6 @6 d2 L4 M1 H. }; ]) W9 f1 D
// Set the DISPPARAMS structure that holds the variant., ?* p* j3 q! O0 x* ]3 G9 P
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dp2.rgvarg = requestVariant;( v' U5 {8 T0 B. c; ?* j% [9 p4 U
dp2.cArgs = 2; # R) R* k/ X) `% j dp2.rgdispidNamedArgs = NULL;3 z4 ?3 e& A% L
dp2.cNamedArgs = 0; 7 E1 |0 r# y- W' x/ ~: r0 p5 _3 O. a2 ~$ A9 m; \
var.vt = VT_EMPTY; 7 P" m. D* N) H' I$ Y: f: J5 j5 T1 f; J
// Call IDispatch::Invoke() X3 c+ G+ J* j. o0 E
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hr = m_pDisp->Invoke(% w7 c/ l$ u: }8 x2 M: }' j; z
requestID, * a% L% [" T* ` IID_NULL, $ ?6 z+ f U. i8 i LOCALE_SYSTEM_DEFAULT,: F7 t7 N; F, Y& R7 o2 P
DISPATCH_METHOD,, E, I8 n( p0 x( N0 M- m: C! V
&dp2,$ j4 i `$ g. a" z. [1 y% ~
&var,4 L# C# a2 p- T/ \3 a
&ei,4 c9 _( _+ N4 g+ u7 ?- ^( B8 k+ n: E
&uiErr); # d) W3 @7 W S7 u% t" E( E6 c$ ~1 {! [7 E& j" r
SysFreeString(topicStr);/ x. K9 k9 y/ N
SysFreeString(itemStr); $ k6 L' W& r$ `$ p/ n9 X请问该程序是获得extend里面的哪个值?+ {* N7 n( q5 v: l. {
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????