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: 5 r' C; x+ s* P6 w! `* zName = (WCHAR *) L"Poke"; # a/ p: Y( n K' @0 d , n; b- @1 v/ C hr = m_pDisp->GetIDsOfNames ( 1 H+ c' A; j/ }# E! ~ IID_NULL, // reserved: y5 E! J: h3 p8 i' B7 c' d: y1 ? V
&Name, // Array of names to get IDs for. S4 R# T. f; R6 S, Z( n
1, // # of names in the array+ b0 O- h1 A9 I9 g a
LOCALE_SYSTEM_DEFAULT, // System locale" q# B) S) |1 v
&pokeID); // Array of IDs to fill on output$ V. p3 G" ^3 ^3 D% S1 ~
$ r8 e5 j7 K$ m, M! X% M if (hr) 2 G$ F L1 x2 a4 N3 O6 y# l { # P* n7 v' @ ]8 b- ?' i7 X MessageBox ("Get Poke Unsuccessful");! F$ S% I* \- g' W
return;# B& S% x4 c) F4 q
} " D9 K- z: K8 L5 Q- x O" \$ `; C9 q' I
/**************************传递数据给extend**************************************/ ; x$ \" G0 Y& l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" K5 ]( u _6 X! ?. }! s, k# `% `
' y) b# k H0 a8 n valueStr = SysAllocString((WCHAR *) L"1232"); , m k* r' U1 {1 i. M: ?% q6 n VariantInit(&pokeVariant[0]); ; M6 i( y, m8 |) D& n5 `
pokeVariant[0].vt = VT_BSTR; # [" m" O, Y4 D; H% j pokeVariant[0].bstrVal = valueStr;0 @' |7 H. O$ ]7 D0 {4 y
. t0 Y1 J1 b |0 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 y; | |/ L& k& H VariantInit(&pokeVariant[1]); ( b3 U- s* V5 j8 `, Z pokeVariant[1].vt = VT_BSTR;4 x2 Q$ e# }0 ^7 A" a4 Q
pokeVariant[1].bstrVal = itemStr;3 |; A0 [0 g* B+ U
# }# K6 E) _1 {: u
topicStr = SysAllocString((WCHAR *) L"system"); 6 \" n6 S+ x: d VariantInit(&pokeVariant[2]); # n' {$ T: @' Z h4 I pokeVariant[2].vt = VT_BSTR; ( b- l4 d7 a3 m5 k& j pokeVariant[2].bstrVal = topicStr;& N1 f$ B3 K5 X- U2 _" K* h, y
( Q$ C# H! n0 \6 |% e// Set the DISPPARAMS structure that holds the variant.* ]! R; ~6 J; v3 ?/ P1 h- {. g- o. U( J
# b; s/ s- Q' j7 S- s. f- L dp.rgvarg = pokeVariant; , Z+ C0 E$ `( ^8 g dp.cArgs = 3; # ?7 b2 ?" T# g f: { dp.rgdispidNamedArgs = NULL;4 w N" u2 z" k
dp.cNamedArgs = 0;6 c( ]! N9 C7 w0 l1 |; u* w
4 M# P7 O% l/ a6 ^* y// Call IDispatch::Invoke() / Y9 G4 V+ f% Z5 L+ p9 L- A) `; r, F4 h
hr = m_pDisp->Invoke( $ h. b# a! ^8 V6 o- t, {6 E8 F pokeID, : g/ [' d3 C2 p o$ O IID_NULL,! ]$ D) |; K5 D& @- L; e# d
LOCALE_SYSTEM_DEFAULT, 8 y0 [. ~- ~3 U g3 I( ] DISPATCH_METHOD, 5 |* Q0 B% S# Y& }0 l &dp,/ x' k) S; p4 y& ]5 v$ p
NULL, t( L5 W6 E( g& a
&ei, . ]6 V$ B/ k: S &uiErr);* \+ r5 J: k& w/ f
8 t, M4 S# q6 ]" d SysFreeString(topicStr);- F& f4 w! P$ }& c5 T$ y( X
SysFreeString(itemStr); g0 |- e1 J" c: h& U/ J; D% f SysFreeString(valueStr); " _$ R3 N9 G9 {; X ( w% E* [* o$ K4 ~2 l9 I1 {% h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??? ; I! }3 N8 t" u8 g+ ?4 N% z8 J, `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???? E5 U; l+ t$ L6 p6 b% \( t 6 b7 A% @+ `( l! W9 g& d; `1 t0 n& H, r( ]9 F6 C
2.这是request的程序) o2 p" \0 ]' Q, t! g- Q( ?' G8 Q. }
// Request a value from Extend9 G$ a- s% x# r3 g( F
//# W& Y. {' ` p Z$ ?. N( B
// Initialize the variant that will hold the BSTR. Set the variant's ; R/ j6 O4 A( b) x* C9 ~' M; B// type flag to indicate the fact that this variant holds a BSTR. Place the ' g3 N( O2 j2 \( c: i// BSTR into the variant structure.5 @, _0 L8 w: r. I: h, l
% ?, y9 }6 T+ n- Y' N! b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # T% E0 H' e* ?& w+ ?: I 1 `6 S7 I+ D' F! ]& o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / P- q6 C5 |9 M0 f# W1 S: F! V$ d VariantInit(&requestVariant[0]); , [( Q& W- q% S9 E
requestVariant[0].vt = VT_BSTR; 0 C% S: K0 V7 I, t requestVariant[0].bstrVal = itemStr;1 N3 v5 r7 }4 L+ l5 g
/ ?8 O' r# r3 \0 R
topicStr = SysAllocString((WCHAR *) L"system"); ; m, f6 ?$ G7 e' ? VariantInit(&requestVariant[1]); ; ^% s; X o: J: x requestVariant[1].vt = VT_BSTR;; v+ P# w; H# f; m
requestVariant[1].bstrVal = topicStr; + i! u7 x5 i- `3 T) S2 D! t4 v" B ! s; M# t) W( L5 }) P6 M/ O// Set the DISPPARAMS structure that holds the variant., V# `9 s! o- Q! E- U& l% r; H
( @3 \+ |* N2 Z9 Y% L6 \
dp2.rgvarg = requestVariant;* ?- L7 x1 S8 z; ~
dp2.cArgs = 2; 8 u: @! R0 M# N6 `, A1 h dp2.rgdispidNamedArgs = NULL; 3 F* a: \$ `! a$ `% y dp2.cNamedArgs = 0;9 e! y# d% w/ I: ~" H6 z' x V0 g
" K) W1 A* Q* x0 s7 |5 E. K& @
var.vt = VT_EMPTY;4 R8 J. e; j* y