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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:
0 W4 y4 l, g7 yName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (# R5 S {% Z& N* B+ i/ W( R }
IID_NULL, // reserved$ _6 |) @9 b1 E* {
&Name, // Array of names to get IDs for
8 u/ c6 T/ J9 n# m& N0 r 1, // # of names in the array
! e& ?* b8 [8 \ LOCALE_SYSTEM_DEFAULT, // System locale5 J, x) d/ m" Z1 h# c7 u" u; W
&pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");$ r7 i& W6 @" H0 U0 h+ }
return;+ W8 }- X4 B% ~' ~# p4 [' T
}
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, v- D% m# k) z+ L$ ~, M# I/**************************传递数据给extend**************************************/+ @: H( a$ a" Q3 N5 n3 w4 I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& c( y! f6 h/ ~
& D2 x- x7 Z# m% r A) M" c valueStr = SysAllocString((WCHAR *) L"1232");. y, E/ ^# {4 t, G) c( X" e
VariantInit(&pokeVariant[0]);
7 x/ a( D2 Z7 k pokeVariant[0].vt = VT_BSTR;: |% W4 @' @1 p, D+ n( | `* v/ S
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 I' T9 D) L$ X9 B) z9 n VariantInit(&pokeVariant[1]);
' `8 ]7 z. l5 V I4 g" f pokeVariant[1].vt = VT_BSTR;4 S3 C+ _) o' K& D: I
pokeVariant[1].bstrVal = itemStr;$ o: y& C' N( Z f/ f# B6 d
" z! w" j5 I8 g6 J4 ~& @ topicStr = SysAllocString((WCHAR *) L"system");* x% N3 \3 i+ I' x! l# v2 }
VariantInit(&pokeVariant[2]); & H, Z) h- X+ Y$ `
pokeVariant[2].vt = VT_BSTR;
: i$ M% G! j i" q: p4 p pokeVariant[2].bstrVal = topicStr;
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8 |+ Q* r8 t! f// Set the DISPPARAMS structure that holds the variant.7 W- @! s6 s$ t! X8 b
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dp.rgvarg = pokeVariant;4 `8 b( o) l3 X6 v' V0 |
dp.cArgs = 3;
/ o$ x+ p+ |1 [ y! e dp.rgdispidNamedArgs = NULL;
, E0 ^0 s5 ]: _, R. l- h4 v dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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" C9 J( r4 e+ n9 \/ w" @6 T# B hr = m_pDisp->Invoke(; s6 P6 U2 k8 w1 h: M+ ]% e
pokeID,* a5 i2 H7 K: ?2 B- [! g
IID_NULL,! {- w+ G. M: _
LOCALE_SYSTEM_DEFAULT,
8 H; C# I' v- ] DISPATCH_METHOD,
( z* l2 u& |- }0 O &dp,0 N) \7 k' z5 Z/ T7 b' b
NULL,! P. s& A# a3 D/ b' T" ^
&ei,; u* h. k5 B' {7 ^% A
&uiErr);
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$ r) E+ c) J- W) r+ E/ b SysFreeString(topicStr);
2 o# e: r0 O% b; v$ V0 z2 q5 k; V SysFreeString(itemStr);7 s) ^& @7 D6 B% P9 P8 |
SysFreeString(valueStr);
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$ @ p4 C' R/ Q/ o- g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???' O' }2 s$ a8 O i% A
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????% O" ^1 {' C d% s! w/ Z
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2.这是request的程序0 U% [5 E0 ?' A5 x, z. J
// Request a value from Extend( [; O( w+ ^7 u1 `
//
9 D0 G' ^# N, ?# W* g// Initialize the variant that will hold the BSTR. Set the variant's I e. n) W t+ G
// type flag to indicate the fact that this variant holds a BSTR. Place the+ v0 L+ Q! M8 c. q$ o. V
// BSTR into the variant structure.4 ]2 `' a1 ?, U4 @9 G9 ]
" B6 h& k2 F5 W( g# s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 ?* A$ d; l3 W' A
1 L I% d3 z0 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
- K# l1 n9 V5 a4 S9 s$ r& P% L VariantInit(&requestVariant[0]); & K" b& m6 f0 Y# H
requestVariant[0].vt = VT_BSTR;$ Y/ h* T2 N3 @( O" f# U& ~* j
requestVariant[0].bstrVal = itemStr;! m4 f n( a2 |+ k
. Y" J0 T9 ?& d9 n; b topicStr = SysAllocString((WCHAR *) L"system");
{3 ?9 d m9 I- W3 {. x' l; _ VariantInit(&requestVariant[1]); : U1 F1 j1 C- l8 V5 b5 E( f
requestVariant[1].vt = VT_BSTR;
+ P8 x' h, ?3 _" h9 x, u: d/ L+ b requestVariant[1].bstrVal = topicStr;, W% M! e5 E2 ?6 g# ]% ^
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// Set the DISPPARAMS structure that holds the variant.2 J& ~& @+ m: F: p- h
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dp2.rgvarg = requestVariant;
( I& x# X: i/ ^. X0 f dp2.cArgs = 2;8 N7 R* [# l, k+ P! _8 C- ~" p
dp2.rgdispidNamedArgs = NULL;1 |6 B, L7 h1 B) ~9 ?" W9 V
dp2.cNamedArgs = 0;% K9 O5 y% F0 `
7 l9 ~. Q3 D- S/ W4 o var.vt = VT_EMPTY;
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' x- U% k; K8 O0 m+ A2 H: z// Call IDispatch::Invoke()
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: L# a. ^& k' }+ D hr = m_pDisp->Invoke(6 N) ^' ^( h: ~
requestID,; v0 H; P4 m: K5 {! n: G
IID_NULL,+ G% J6 c* Y9 c2 g$ c
LOCALE_SYSTEM_DEFAULT,
) J8 ^. {5 p" C! y DISPATCH_METHOD,3 s; U5 n6 ?. S; E% i4 m; ]
&dp2,
5 B$ Y; k. f6 z0 o. g: b: f &var,/ U, h& e" o7 Y; W% j9 x
&ei, c0 k' E" F7 B4 @6 x6 a/ `7 ~
&uiErr);( U5 ?7 F5 N. u0 n2 E# d
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SysFreeString(topicStr);
* E- k$ E9 R" s% M8 T- _ SysFreeString(itemStr);6 r% p; M$ c$ c* |2 T) D( P
请问该程序是获得extend里面的哪个值?
, X6 z' r% ^0 B, p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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