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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：
$ f3 ?) m2 A' q- |) i% rName = (WCHAR *) L"Poke";
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( x& ?+ @9 r$ t; S% f, W( V' }* f hr = m_pDisp->GetIDsOfNames (% v: ^% w; \- }* n* u. \& p
IID_NULL, // reserved
' X3 [+ K* Z, B" V1 E* c7 s &Name, // Array of names to get IDs for1 q4 ~. `* S+ l/ f! ^9 F
1, // # of names in the array- w% U) q& ~* f& h
LOCALE_SYSTEM_DEFAULT, // System locale
% D) ~! \" x) u1 x8 \ &pokeID); // Array of IDs to fill on output0 b# [7 A$ c v# q
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if (hr)
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MessageBox ("Get Poke Unsuccessful");- B$ ~7 `2 K8 ~' T( j
return;0 r( z% z9 Y! j/ Z/ `- ]# x
}
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/**************************传递数据给extend**************************************/1 p: y t3 x+ U. m u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");. C/ o$ t+ ^3 a6 _, Q2 [! r
VariantInit(&pokeVariant[0]);
}8 ^* f' x9 {( N6 r" g, ?" } pokeVariant[0].vt = VT_BSTR;4 H8 J0 s) x7 L% i
pokeVariant[0].bstrVal = valueStr;2 D+ ^$ d6 B- ]( {. n
! v+ l) v" Y) J4 T4 a% f9 |1 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 Z# H6 H% d( \5 N" D1 ?4 T VariantInit(&pokeVariant[1]);
" X! p( B- ~ x- R6 P; r, _* v6 K! E pokeVariant[1].vt = VT_BSTR;. Z# O. ^2 c3 [: l0 O8 O- U
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
& V' M* ]% I K- B( H l VariantInit(&pokeVariant[2]); 7 Q8 N v1 Z' \/ {% N9 p, ?
pokeVariant[2].vt = VT_BSTR;
9 u' N U! {. g% Y6 i* u pokeVariant[2].bstrVal = topicStr;
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4 d# M9 v; n: {8 T3 _% c+ h K+ f// Set the DISPPARAMS structure that holds the variant.3 j4 q; t2 t! G/ t, i3 p& y9 z0 G
+ }* u, v! z0 D* e
dp.rgvarg = pokeVariant;% A9 b1 P! @- j4 L5 a
dp.cArgs = 3;9 y! ~; a0 u5 @% |- ~! P8 d0 d
dp.rgdispidNamedArgs = NULL;* I U1 @) R) j% ?+ G% S+ u* R9 [
dp.cNamedArgs = 0;
& M) a) g2 [& p# G
' b6 N% r" R4 q1 p1 I- I// Call IDispatch::Invoke()3 |! x6 B$ L6 `, V @4 ?
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hr = m_pDisp->Invoke(4 W$ h. P$ d1 p6 x
pokeID,
; a1 G" w' H& g: l$ j IID_NULL,
_2 ?- k6 X$ n( _ X# O9 U8 B LOCALE_SYSTEM_DEFAULT,2 F' h' v; q5 c+ d
DISPATCH_METHOD,
/ r7 W+ `' c7 v {9 o _# g &dp,' f' j, t/ l# c. ^9 f2 M
NULL,
" H7 } H% a, K1 P# k &ei,+ C) O( `. L2 e! D( c
&uiErr);
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SysFreeString(topicStr);/ ?, o8 x- k0 |+ Z6 b2 A- n
SysFreeString(itemStr);
8 \+ d4 _) Q" C. b% r SysFreeString(valueStr);
& L, h( z% W! S n$ Z2 \/ E3 K3 y7 m% [3 `
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？？？6 [+ n: N. c' L1 d. G
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？？？？
% G) s8 X0 L y! ]
6 T; A$ U5 d, z8 n+ N3 K. M2 H% w. P% Y+ A* L2 z
2.这是request的程序, Y: ^( w4 p! d h
// Request a value from Extend: A7 ~# i3 L7 o6 k* H7 I5 k: t
//1 g. I: u" t- s/ H/ v$ x* m
// Initialize the variant that will hold the BSTR. Set the variant's
. \5 ]7 g9 g6 m5 R9 ^* ]1 {// type flag to indicate the fact that this variant holds a BSTR. Place the9 o* n6 s* q6 ~0 `
// BSTR into the variant structure.* m, I n/ K# Q' I7 D" O- Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) |7 [" `: ~- I5 U* _
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 q7 z; j5 g( C' z
VariantInit(&requestVariant[0]); : ^9 s- ?4 G3 V+ h2 H- e
requestVariant[0].vt = VT_BSTR;8 B9 l' `1 }* w
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");! u- g+ y8 q+ Z( o- g1 T6 G, {9 ~
VariantInit(&requestVariant[1]);
% J2 n W% c" c" R requestVariant[1].vt = VT_BSTR;+ q$ K' i6 Y+ p* t4 u/ _
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;9 d4 x; e% K5 {% R" L2 V7 \$ i
dp2.cArgs = 2;
* |$ ^5 q! a% A" \/ j$ G dp2.rgdispidNamedArgs = NULL;
/ O! u) i. p7 A' k+ G9 c dp2.cNamedArgs = 0;2 {7 K6 k! ]; L% V. I* B
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()$ V2 |, Z# ]$ ` J0 D! t
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hr = m_pDisp->Invoke($ w9 e6 n: y9 i9 `# x. [2 h. G' h- [
requestID,' Y- {" c/ L: P' {: m: g7 |; I5 Q% M
IID_NULL,
' S, c9 o/ @# q5 r* N/ ~. ]1 u LOCALE_SYSTEM_DEFAULT,) Y8 D9 Z3 c Q6 B! J8 G8 i7 b
DISPATCH_METHOD,1 V3 Y0 v/ k! a `
&dp2,
0 P3 o" D; ~; m- q& ?7 F; ^& K &var,
5 |& M: B/ v' ~" s &ei,
8 G/ F; ~ Y) x, X &uiErr);
2 G" ~' D$ I3 _1 M; M, p
% B2 P" e) P2 [; ` G6 P SysFreeString(topicStr);
4 N% n& w- g. g. f5 I% w, h SysFreeString(itemStr);
5 [+ r. f' X1 @0 _请问该程序是获得extend里面的哪个值？
! K& ^. y+ a5 H# `) e! w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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发表于 2008-11-25 19:37:03
