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: ( b7 M9 J4 z% A; XName = (WCHAR *) L"Poke";# Q+ a5 k O* E: I2 \+ @
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hr = m_pDisp->GetIDsOfNames (; r5 w( Z' J6 A' \% L8 v
IID_NULL, // reserved * r+ h) C. N- p: t# T2 ~; c# o) R &Name, // Array of names to get IDs for* }. s# @5 b# X; R
1, // # of names in the array 6 g! G' _4 q; D) i, r LOCALE_SYSTEM_DEFAULT, // System locale: [* G! {& a2 J7 F6 v: Y' a
&pokeID); // Array of IDs to fill on output% h( |5 t5 J0 T
$ F4 K. v( |% o if (hr) 5 J. K: d3 K+ ^% e- Q { d9 Z; P! j6 C7 m2 p4 o
MessageBox ("Get Poke Unsuccessful");0 S" P) B7 a+ {$ [
return;. g8 @6 V; U+ `( j
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9 l/ Q2 d% q+ I' l4 R, a/**************************传递数据给extend**************************************/) a3 f1 r* S$ k6 H: T3 N u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / p/ u" Y6 I& w2 m- O. g$ V2 x5 ^ 8 A, Q1 ?8 G6 g$ g valueStr = SysAllocString((WCHAR *) L"1232"); ) R2 C: u7 F/ ~, T4 @/ @" i' { VariantInit(&pokeVariant[0]); ) g$ Y' h5 N' x& e( ]
pokeVariant[0].vt = VT_BSTR;' n$ E4 I' B2 Y8 P" p( M/ N
pokeVariant[0].bstrVal = valueStr; " v4 ^! o4 o/ ]+ I. r# a& j4 h( h$ w: j* v) Z* l0 [0 M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! G' }& w' j4 K# F! z VariantInit(&pokeVariant[1]); ! ?3 t. I- |; R! k$ [& l. s
pokeVariant[1].vt = VT_BSTR; / G# g1 Y! j1 S; ] pokeVariant[1].bstrVal = itemStr;5 t7 {0 |4 A4 p3 {2 P6 B
# ^) V- b; E+ b. z {* p topicStr = SysAllocString((WCHAR *) L"system");3 i8 `; J) f' q5 y
VariantInit(&pokeVariant[2]); ( H( e8 @& P3 o3 B c0 A
pokeVariant[2].vt = VT_BSTR;, K+ J3 E! f& i8 P
pokeVariant[2].bstrVal = topicStr; " O8 C8 Y8 `, |9 w6 m $ ]6 C1 `0 p# |8 n0 O+ x// Set the DISPPARAMS structure that holds the variant.) N( @( ]5 _ M# P
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dp.rgvarg = pokeVariant;; J# J. O' T8 Z/ \7 L o
dp.cArgs = 3; ' q4 M. M, u8 J) _+ w: n P) C dp.rgdispidNamedArgs = NULL; & y7 t- W, h; [ dp.cNamedArgs = 0; & n% \- L: h1 g! P: Q) m$ a" z) k 0 T( I' C, e5 k: P& i// Call IDispatch::Invoke() & m/ U+ `! ]. U3 @- j5 g# o) U( R, z/ Y' A; Z7 z3 M9 r
hr = m_pDisp->Invoke( 6 @0 Z5 E7 l) U4 f" R pokeID, 2 p' X7 t" w- |, h- [ IID_NULL, ( b7 d" @8 G4 P2 z0 z LOCALE_SYSTEM_DEFAULT, # ]+ k6 I; ?! f5 C. m DISPATCH_METHOD, 7 W4 N( V) o4 S4 l8 S& e &dp, ) W1 v; B6 V/ i0 y5 B) \2 v0 O NULL, 1 z- ?8 |! t* h* ]% q& |8 z &ei,% l; e0 c+ h1 m: g
&uiErr);% a0 c7 c) B5 s8 [+ B: b1 n
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SysFreeString(topicStr); ! l4 E* H4 P! x9 j& T9 F SysFreeString(itemStr);6 Q% O7 U1 ?6 r: h; ^( D, l. R
SysFreeString(valueStr);6 t$ X0 z/ g5 l2 Q0 O
3 R4 N+ S: Z# y3 [- J4 b+ @; r# ~, W, p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???& ?: g4 q6 B. D# h0 o! Y" Q. W
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???? + T7 o7 R6 |7 I, _" Y& K# v. G4 e8 z 9 U8 _6 i$ X* W a5 j4 g% v7 g3 L- H, p1 ~9 Q" Y3 \
2.这是request的程序4 Y( d* d) X) o. a
// Request a value from Extend _; h9 G" x# H// . P9 s# V% I( f6 H// Initialize the variant that will hold the BSTR. Set the variant's $ s: U1 A4 n- | B8 ~! h) w// type flag to indicate the fact that this variant holds a BSTR. Place the ' L1 ~' Q+ A* S( z1 h// BSTR into the variant structure./ f- C; l4 a, C+ i$ ]9 v$ Q
, O8 w5 t5 [" n+ V$ D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! D; ~1 O0 l. T& z
5 D+ A& \8 Y1 p; ~# v/ K: h+ e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( [3 j r4 l6 c9 X: v" O
VariantInit(&requestVariant[0]); 6 w, i+ s/ _0 N- I( j% w requestVariant[0].vt = VT_BSTR;; F( f% k0 x- f0 ^% E1 x
requestVariant[0].bstrVal = itemStr; 0 O% |9 k4 t' @0 @1 N% l; d1 R, |
topicStr = SysAllocString((WCHAR *) L"system"); ) g- g; c1 U" R) S& ^$ C. y. _% @ VariantInit(&requestVariant[1]); 7 Q/ D: ?7 C5 j! C- O, P i requestVariant[1].vt = VT_BSTR; 0 O; z6 b- V; f t' k& F2 v requestVariant[1].bstrVal = topicStr; # ~, i5 b/ }2 Q) G, F- ]% l: {2 j/ V7 j! R
// Set the DISPPARAMS structure that holds the variant. . D' R5 Y9 {5 O- b" { + D: P/ h0 @# y( C3 H% e3 d dp2.rgvarg = requestVariant;% \, P+ R) ~9 V0 z
dp2.cArgs = 2; , V% ~4 w& k' N; r dp2.rgdispidNamedArgs = NULL;& q; L7 W) t/ _, F
dp2.cNamedArgs = 0; 9 X! E. ^& ^+ k7 u6 g4 w9 B8 W# N, T4 D# y
var.vt = VT_EMPTY; ) i- j1 K; A1 G5 f 0 y/ e4 l6 Q }' k$ S// Call IDispatch::Invoke() 2 v4 ?2 s; J7 @ ' s8 o" @$ a" Z hr = m_pDisp->Invoke( ' Y4 ` G5 S/ l3 a requestID, 2 H; U) V, N0 n- ~4 O1 G IID_NULL, - u- h5 P! V( W9 c' k C$ `" q LOCALE_SYSTEM_DEFAULT,, K7 y: F, K7 Z8 A3 U
DISPATCH_METHOD, ; m. Y. O% ?8 n4 L; B &dp2,4 H R/ \- ^/ Q7 c
&var, % V N* ]9 J+ m1 Z# t0 x &ei,2 V& s# Z# I$ ~! ^* K o
&uiErr); ! X, y8 f, g' F. T: y' D1 g9 d' H9 g @) u$ G6 I: c
SysFreeString(topicStr); ! z' P" g% `& E8 K SysFreeString(itemStr);: n/ D: }/ M' q. u
请问该程序是获得extend里面的哪个值? 8 B+ O% f& ^' Z4 C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????