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:3 H6 d; p, s1 m$ V/ Y
Name = (WCHAR *) L"Poke";8 U4 a# ~0 {# v1 g
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hr = m_pDisp->GetIDsOfNames ( : v6 j( i2 |; a( L. G0 x IID_NULL, // reserved& l& U/ i0 j9 F2 s+ o
&Name, // Array of names to get IDs for' M' q6 x% e" m* T4 y
1, // # of names in the array: M- m* s% t, z& v
LOCALE_SYSTEM_DEFAULT, // System locale ( Z( @1 y |+ R% U8 ]# i$ v &pokeID); // Array of IDs to fill on output1 ~& O9 v! x1 d0 g" k. {& W
[8 j. V. z1 A3 Z }6 x if (hr)) g6 L- h \3 _( n( C5 n
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MessageBox ("Get Poke Unsuccessful"); : q# V8 V) Z5 M6 i% K return; # z4 M; c3 x4 I! N4 Z( j2 }4 j }; n1 b% }. p' I2 G; S2 ], w0 Q1 {' m
+ X' R. b- L3 o2 R9 q" {. k/**************************传递数据给extend**************************************/ * C' _/ i. M3 x* z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ v+ h6 ], X# Z
) F/ c( e# i: |* [ valueStr = SysAllocString((WCHAR *) L"1232");$ I9 \5 I: V, z4 D! U! o3 Z
VariantInit(&pokeVariant[0]); z9 G: R( \! h0 U0 B) Y
pokeVariant[0].vt = VT_BSTR; ' D$ P1 \# S* Y, u4 V) N8 P pokeVariant[0].bstrVal = valueStr; ' U9 T5 E. ?" {- ? 1 j- ^$ w# h; \! ?$ I/ N2 |+ L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' u# ^9 h$ c$ U N VariantInit(&pokeVariant[1]); 2 H5 F& a" \& [3 D: z pokeVariant[1].vt = VT_BSTR; + Q/ V5 [( G2 u8 W pokeVariant[1].bstrVal = itemStr;4 o2 F: q; E: }+ }/ b# ^6 z5 M5 A: y9 h
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topicStr = SysAllocString((WCHAR *) L"system"); - ~/ D1 P+ O" L1 ?# e VariantInit(&pokeVariant[2]); % D! }- I. ^" r9 @ pokeVariant[2].vt = VT_BSTR; + \$ j* {& Y; y3 g pokeVariant[2].bstrVal = topicStr;) c4 l8 [6 \( P( g
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// Set the DISPPARAMS structure that holds the variant.2 K! i$ v) o* T" w
% R/ v+ Q# D0 |( \' Z# L" @ dp.rgvarg = pokeVariant; 7 P7 ]; |2 G4 [) w7 o: g dp.cArgs = 3; * n! c* |1 v( L& g7 K- m dp.rgdispidNamedArgs = NULL;6 N( H% H1 n% n4 h
dp.cNamedArgs = 0; 6 i/ ~' }& r4 h8 X' o( g! Y/ X2 h7 R( @+ w9 p
// Call IDispatch::Invoke(), L/ O5 w3 S2 e8 C$ i
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hr = m_pDisp->Invoke( ( @! r6 I8 I; q( [5 P pokeID,% d6 b$ ]8 R. Y( s9 j& m! v E
IID_NULL,; o( |1 P- o. I( z$ I6 h( x3 F/ a- b
LOCALE_SYSTEM_DEFAULT, 0 r6 p3 N/ k' ~, ~: n$ I" U3 ^/ a DISPATCH_METHOD, 9 s( {. W j4 S; y &dp,3 `, Q F; |% u; F6 Z1 n$ @
NULL, $ U& F( {* W) `4 ^) q &ei, $ j% n2 q. y% d* V+ e6 u8 E &uiErr);) t: D5 h$ u+ Q5 v# S" H# x
9 f( f- d X0 p! Y* a, F SysFreeString(topicStr); ! S/ E0 H6 u6 s SysFreeString(itemStr);$ w7 J. K! t0 u1 R7 l
SysFreeString(valueStr); ! A- `8 M6 Y9 |2 o! b# g, Y; }, f( o3 \* U+ Q2 O
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???: D# L+ f' D3 B! d5 U, P$ 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????( H" x A& s! }5 _9 ] `
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6 ]/ B2 n& z! W, }/ v2.这是request的程序% M- `5 R- A) p
// Request a value from Extend . i& d& z9 q7 Q* |6 F! U//. [2 V1 V9 H3 E# _ {- h/ o
// Initialize the variant that will hold the BSTR. Set the variant's ( f) }$ H4 h8 q& ~' z// type flag to indicate the fact that this variant holds a BSTR. Place the# d/ d6 f: i# t) R% F \$ V
// BSTR into the variant structure. 8 A" q& L% f, e- F- ]$ `: l) M O( d! K, i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) U7 B& l0 L% M
6 D: i; g: u) I* x- A% x1 x' r* x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 X$ J* k r! V( g7 V VariantInit(&requestVariant[0]); ) o% B. }+ [- t2 _; Q requestVariant[0].vt = VT_BSTR; ' W, ~ e, t# y0 S1 u requestVariant[0].bstrVal = itemStr; : ?- u9 a, F e! X( Q L( ^9 e* G" j topicStr = SysAllocString((WCHAR *) L"system"); & V2 y3 E/ T: S% a4 m* a VariantInit(&requestVariant[1]); $ W i7 m/ \* o
requestVariant[1].vt = VT_BSTR; 4 `' H7 T1 T; [. \; j) @ requestVariant[1].bstrVal = topicStr;8 E7 p; L- Y8 L9 M
6 x" N# u$ x9 o2 o6 X. |// Set the DISPPARAMS structure that holds the variant. ( [; A9 T0 z$ V ; F- t; A+ X; M0 V* K& S9 s) m- }, j dp2.rgvarg = requestVariant; ' V. d( N$ @& a" l3 n K1 { dp2.cArgs = 2;" D0 @; o8 }7 z- L' g
dp2.rgdispidNamedArgs = NULL;& L/ q; f8 C# K0 J: s6 ^5 f
dp2.cNamedArgs = 0;/ V: C9 [% J# @8 `: q+ K
% R8 G% z3 c8 B2 d var.vt = VT_EMPTY;9 d; C+ [7 m8 X
; Z/ f/ G4 {0 s3 |; Q2 G// Call IDispatch::Invoke() . o" `; M6 l' B - L, w4 `1 l6 \" L/ R3 y hr = m_pDisp->Invoke( / h l9 b! T0 k9 A! I+ r requestID, 0 @. e3 Y% H/ L* M: I* D2 r IID_NULL, ) V N* ^7 E; W7 b* V+ t: c3 q. h: m LOCALE_SYSTEM_DEFAULT,. M) \2 t' |. X8 o6 l0 ~/ P6 e$ l
DISPATCH_METHOD,9 d X2 e5 ^9 q7 t* L
&dp2,- w( k0 B; z+ l2 z O6 z
&var,: a% f# q* E/ O
&ei, ) V+ ~& y- T( s' k &uiErr); 0 O" j7 P1 ^& A# `. \2 _; u6 b % C3 {* K4 f/ ^: d SysFreeString(topicStr);1 c/ \+ R- e. s" F6 N) Q1 v
SysFreeString(itemStr);; |9 u* U8 c) ?$ e: p
请问该程序是获得extend里面的哪个值?6 o \% ^9 L0 f. b
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????