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 }( C4 y7 h" `1 e) AName = (WCHAR *) L"Poke"; 8 p9 a4 S. X& r3 ~ 1 h" ?) `: }$ z$ M, l4 [ hr = m_pDisp->GetIDsOfNames (( e0 M$ L+ v# d& `& |4 q
IID_NULL, // reserved $ Z2 y% x' A' ]; y/ L+ Q' {. t &Name, // Array of names to get IDs for 1 F4 Y( ?! H# t+ c 1, // # of names in the array ( U$ Q9 f7 M7 e$ m! m5 @; d4 A LOCALE_SYSTEM_DEFAULT, // System locale! j5 z$ ]) l! `" }+ s1 B" Q
&pokeID); // Array of IDs to fill on output 8 k' D0 e' j. q3 W ) s! ]! a0 b5 s' l8 A4 y1 W if (hr) - L: k1 Z9 F0 O- ~ { % `" b; Q1 ^- z4 U5 g/ ] MessageBox ("Get Poke Unsuccessful"); " q$ y k8 D; W7 F6 \9 z1 L return;3 D6 l& X3 N, [# D3 u' W
}! q& Y6 o0 v/ E8 t# d! l, n& O
1 b6 L% F# x* {. G0 j- B4 O: g
/**************************传递数据给extend**************************************/ " [% }! ? b5 F5 H- Y7 ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 @ t' L6 ~3 v l. F 8 z9 ^5 m" ?' O H/ F: Z
valueStr = SysAllocString((WCHAR *) L"1232"); % D( F8 F7 _( @/ d- U$ o @7 \ VariantInit(&pokeVariant[0]); 5 q; b0 B7 j" \/ C
pokeVariant[0].vt = VT_BSTR; / S1 c/ f' b$ j. T3 D pokeVariant[0].bstrVal = valueStr; 6 \" N$ [+ ]' ?/ |' ~' _) J+ z1 D3 j( |
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" h& Q$ u( N3 [: \
VariantInit(&pokeVariant[1]); - S& i, i2 Z+ h* s. F& K
pokeVariant[1].vt = VT_BSTR; : m9 y% P% r6 \$ D/ ] pokeVariant[1].bstrVal = itemStr;+ j* X- i6 x3 Q- Z! z/ C# f2 o
' P, W* Y: O8 M3 I9 @7 r5 s topicStr = SysAllocString((WCHAR *) L"system");0 ^1 l/ k5 C, t S# B
VariantInit(&pokeVariant[2]); ^! z- I+ T' z }/ z. w pokeVariant[2].vt = VT_BSTR;5 g: `2 `1 X( @6 b0 b
pokeVariant[2].bstrVal = topicStr; 1 ?. [8 [/ ~. O$ x: {7 \. Q( @( S2 n& m9 A) L0 q8 [) |+ D6 G) W% y
// Set the DISPPARAMS structure that holds the variant. - F6 N& L. C4 \/ G# B: N; c S! h _# A! g8 j$ E. `1 a9 T2 B$ b) \
dp.rgvarg = pokeVariant;9 p6 v$ B s' g1 T: Q' s* |
dp.cArgs = 3;- W+ R4 d5 M! e& i
dp.rgdispidNamedArgs = NULL;) ~- `' ]: W# [, d, b5 t
dp.cNamedArgs = 0;6 B' ~" X1 K& E
( C8 g8 F# v( ]3 P' X1 p
// Call IDispatch::Invoke()* h1 K1 r- Z$ Z' c: [2 U/ ?
$ @; v! c7 V8 l5 Q5 @7 o hr = m_pDisp->Invoke(0 z$ F9 U2 D7 J+ _
pokeID, % j. S' @& W4 y r# C IID_NULL,: j, ~: I# K: |) j2 K# F
LOCALE_SYSTEM_DEFAULT,& ?6 }+ U' [( u7 H2 c- C3 Q# o( u* Y
DISPATCH_METHOD,8 j$ ~9 ]' k, E4 C7 \9 n* y I
&dp,1 ^! b. j: E+ e: ^7 {( i
NULL, m0 |6 ^2 ]6 I9 A: S &ei, . z) n9 W( C" V3 q2 p8 @! V' W &uiErr); # W) P$ H; ~' J6 E/ `2 _, X" L3 z/ H. J
SysFreeString(topicStr);' W' s) B- P: V' _3 H
SysFreeString(itemStr); " g& h; w9 z0 N SysFreeString(valueStr);1 j: u( T# C/ c4 x
' T- p9 @: z4 S3 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??? 4 M- ^& C1 b2 c+ Q+ r& b) V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????8 [. d" Y, R( u8 u8 X/ M
- A' Z) y+ h0 N# K/ g
! V& v. Q g$ `1 D$ C2.这是request的程序 9 a( b0 Q# G, y4 Z/ P) H8 t8 ]// Request a value from Extend ! V n. `% a- r8 K4 u- E- c- @0 W//6 K8 S. K) y4 e' a
// Initialize the variant that will hold the BSTR. Set the variant's ; y8 b( w0 Q) V8 E8 |// type flag to indicate the fact that this variant holds a BSTR. Place the& ]1 r8 R" `: }/ k" d
// BSTR into the variant structure.( x6 r9 y+ y q0 r3 O( }# g$ A
+ U: w/ x$ C6 ?2 ]! D0 P5 \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 b; \2 A/ G% ?: S 1 K% M5 H7 T5 G" E4 y: @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 F5 \& n! [; r8 u8 i' r: U8 |
VariantInit(&requestVariant[0]); % i3 W$ w# c+ O3 Z. m( `
requestVariant[0].vt = VT_BSTR; 6 @- ]3 H$ v; o. s requestVariant[0].bstrVal = itemStr; 3 Z# l2 X. |" w- x5 ?, \7 s% R3 w) R
topicStr = SysAllocString((WCHAR *) L"system");2 i& F/ H" X! i3 @* j# M
VariantInit(&requestVariant[1]); : ? w7 q* v+ E) f' g
requestVariant[1].vt = VT_BSTR; 6 o/ A+ r3 l Y7 D8 H( A& b requestVariant[1].bstrVal = topicStr; 5 k$ g5 ?2 H# v) W9 O e6 h* }, \ ) E y$ C4 G# H; C# ?3 p// Set the DISPPARAMS structure that holds the variant.+ l( m) d% z$ E" `
# D! g, e5 c1 \ c+ O1 T- I0 \ dp2.rgvarg = requestVariant; , c0 s# s; F* r' V4 z dp2.cArgs = 2; ; i4 K- o) ?& z) D dp2.rgdispidNamedArgs = NULL;" H, E( e, j/ u" S* {
dp2.cNamedArgs = 0; * I/ y, r' M& D 4 J3 M0 P% O [8 Q( k var.vt = VT_EMPTY; ' b: L' F. V8 }) w% d9 x1 a! E* N' @4 o" l- r
// Call IDispatch::Invoke(), B2 A- i5 P) _4 I) b" C
& u. T/ a5 K0 R8 z7 h0 Z8 v% X7 w8 \
hr = m_pDisp->Invoke( 9 P+ _2 ]$ G; u requestID, & A, U& [( T+ w8 @ Q IID_NULL, 2 @2 z& a4 C. {! q3 r) }) q0 U: z LOCALE_SYSTEM_DEFAULT,5 s' W2 T" X }8 i, H4 l
DISPATCH_METHOD,* i6 p4 q' a2 Y1 ]( Q5 c
&dp2,; z" O$ {2 B. t( g! ]& i- R
&var,6 O, ^7 y! @; h$ f, m- J4 m, N
&ei, 6 q* l' |4 v0 F& u6 A; D0 Q &uiErr); ! v: N/ F f) K; Q% B6 A! P- F6 k: t3 m' b) l) U1 O" p7 Z
SysFreeString(topicStr);8 Y" ^7 Y& m, Y* k% E
SysFreeString(itemStr);3 d2 k4 o% ]7 `) P! `
请问该程序是获得extend里面的哪个值?6 M. i1 r1 d$ W: t+ V
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????