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5仿真币
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:
% ^. W% Y0 d! h) M2 `4 s- GName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
( n- M: @+ w4 P: l) X IID_NULL, // reserved
- y! i) |( S3 i& d3 ]5 @ &Name, // Array of names to get IDs for
1 F: o# y- E6 C$ K1 e 1, // # of names in the array# \* v: w8 @7 o2 U
LOCALE_SYSTEM_DEFAULT, // System locale
) g+ |- p3 J9 y/ `# | &pokeID); // Array of IDs to fill on output: x! e+ b2 y/ O) |4 b! b2 z
, c0 F. ]4 h9 R' ^ if (hr)
5 x# z1 H; }; g$ @ {
/ J' t6 t5 L$ C# N6 p MessageBox ("Get Poke Unsuccessful");1 F0 o+ |; V3 W( k3 J' ~$ @
return;; i/ C' ?; Z! t) {. J( j4 i
}; e |( i- p9 q% \
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/**************************传递数据给extend**************************************/
3 h1 Z: x' p1 A+ F* O C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! R. A d# o3 a, s
( {: z' m0 R7 C7 Q1 W! t4 c r* T2 [ valueStr = SysAllocString((WCHAR *) L"1232");
$ ~* u- @, L* O. D6 l- a% ? VariantInit(&pokeVariant[0]);
" {7 n E4 K3 _3 M* e# Z pokeVariant[0].vt = VT_BSTR;$ S5 s; c/ v- k7 T! Y4 X
pokeVariant[0].bstrVal = valueStr;& X* T: E$ Q; I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 p& K1 Q3 R; N# Q
VariantInit(&pokeVariant[1]);
+ x1 I* K6 \% s+ | pokeVariant[1].vt = VT_BSTR;
" y' M+ l' ?, w! w( _6 R pokeVariant[1].bstrVal = itemStr;, z/ X, B5 r8 {- B
; e( E4 ?! B6 X0 g6 w3 L0 m' r topicStr = SysAllocString((WCHAR *) L"system");
8 H7 _- x8 G) F/ J$ p VariantInit(&pokeVariant[2]);
% Z1 @4 }0 O- B+ |# w7 o2 D0 G pokeVariant[2].vt = VT_BSTR;
* k ^6 I) R& r$ W5 U3 \+ }/ C pokeVariant[2].bstrVal = topicStr;5 |% g" ]) ~# {
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// Set the DISPPARAMS structure that holds the variant.
! |3 B3 e6 U' f5 t' w
3 M. g; n0 z) M6 X dp.rgvarg = pokeVariant;: F W: u$ D# N% Q) f2 ]$ d
dp.cArgs = 3;
7 i3 {3 d! G! D; m Q dp.rgdispidNamedArgs = NULL;$ U) x4 M! B0 ?- I
dp.cNamedArgs = 0;# K! A1 L2 W' F% |
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// Call IDispatch::Invoke()
; j; `5 c1 p; V( o
3 |" k5 a0 Z5 C$ F hr = m_pDisp->Invoke(
' i- h# u u7 I ?. i6 K2 r) l pokeID,+ ^5 L: b2 O8 q
IID_NULL,& `+ H% A- v, Y# R9 T6 I
LOCALE_SYSTEM_DEFAULT,+ ~6 c; u% R0 w4 {
DISPATCH_METHOD,8 q2 D& n9 g0 M- r- E, `1 C
&dp,3 e6 s; M H9 ` f
NULL,
4 |- O3 { V% @ &ei,, b+ Z* N, c, X' a. U; I! J
&uiErr);& a. y, m( I7 S
; h: U, x* h/ S5 a: o6 E* p5 [' M
SysFreeString(topicStr);
# d, H; U) B0 u9 N9 Q+ k8 u- E* x SysFreeString(itemStr);6 J" E$ \; L' s# _" T' e
SysFreeString(valueStr);
/ `* _1 G" z7 i' T# s X- ^
/ k* y; E& A; I& A# |- u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???% Z- U" w, J( M9 P! C: b
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????
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% P8 G4 H( |/ z" |4 z! r
2.这是request的程序
5 C/ z6 J; b2 C, [; e// Request a value from Extend$ a, U9 L' ~1 s6 C
//; _( I7 t" P! p/ ]% d. V
// Initialize the variant that will hold the BSTR. Set the variant's
% J. F2 [$ d) w' x% V// type flag to indicate the fact that this variant holds a BSTR. Place the& O3 i% |! H) K, G6 c$ |: a
// BSTR into the variant structure.6 ?$ V/ E3 \- ]# `; a, r% P
& ^/ x4 s: L: Y* ]1 @
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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! y$ e' p" W8 O$ M+ p: i- s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. @. I9 V7 v0 e) x' @
VariantInit(&requestVariant[0]); 2 f6 } g; e( `/ C A
requestVariant[0].vt = VT_BSTR; z& ~+ {" f) m& B
requestVariant[0].bstrVal = itemStr;: C9 p- \6 e8 [0 q3 P
! u! [( F: g: J' U& ^( L+ W+ \. \ topicStr = SysAllocString((WCHAR *) L"system");
8 K; g! } j6 l, n1 D VariantInit(&requestVariant[1]); % k9 k/ Y. r5 ~# J7 z
requestVariant[1].vt = VT_BSTR;
2 g1 X3 h3 P/ O. c requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.; X/ ~5 J$ c! M
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dp2.rgvarg = requestVariant;) u; C$ V# ~5 e( u
dp2.cArgs = 2;" e F' f; J p; W3 g2 t: G5 M
dp2.rgdispidNamedArgs = NULL;. f% e' u# i2 Z
dp2.cNamedArgs = 0;5 {8 K& t0 j7 _! J0 Y
' W+ b3 M7 M5 W9 m2 G var.vt = VT_EMPTY;: N4 M6 v# Z! |; Q8 l9 N
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// Call IDispatch::Invoke()2 K+ i; D: S1 w! n" |
+ x8 @, N3 K+ q+ X: X5 l/ N hr = m_pDisp->Invoke(. B4 z/ x" P6 T. l: q! m2 F/ |1 n
requestID,6 ]8 H6 f0 O3 [
IID_NULL,1 I, {" z; F7 [9 G8 d& E5 B9 K( c
LOCALE_SYSTEM_DEFAULT,3 V6 a, i! U& ]9 y0 t
DISPATCH_METHOD,4 f) v' V+ G# D6 R' {/ H2 q
&dp2,
( P2 P" T+ {: O# z! t3 H &var,
5 b. r& Y) ]! t" \7 { &ei,
7 k3 I( A: |' S( h" `) K/ c1 u &uiErr);& F7 y- \+ ]! c+ G0 e4 _
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SysFreeString(topicStr);
' b4 A3 {; O: \/ n; ^1 Q5 `2 K SysFreeString(itemStr);- P# M$ n' e7 X7 b. k
请问该程序是获得extend里面的哪个值?
0 N9 g) ]$ I0 j: P( s0 k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???? |
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