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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：
( M1 ?) W& x6 C7 |( lName = (WCHAR *) L"Poke";
3 |0 a. \( n/ U; M! @ 2 M' k4 J, ], z8 ~4 i8 V7 p
hr = m_pDisp->GetIDsOfNames (# h* C1 \' p& b
IID_NULL, // reserved9 u* ]& R) y: b+ K, y8 U$ U% @
&Name, // Array of names to get IDs for
2 K, [$ G) X5 E; I9 a 1, // # of names in the array
" W: B( @/ z) F6 ^0 f* u( Z1 f' w LOCALE_SYSTEM_DEFAULT, // System locale/ x7 T( ]. U) g7 h# j8 Q/ O! R
&pokeID); // Array of IDs to fill on output
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if (hr)6 C5 ^! `5 z# f. J$ s
{9 r6 {# c! `: B- f% U/ |
MessageBox ("Get Poke Unsuccessful");" `9 f) g! D( j" ~/ p$ q
return;
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# y& `' D7 x3 W' c0 { c3 Y9 W/**************************传递数据给extend**************************************/
# G0 Z5 C$ e& A$ B) K3 h$ C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
; r( s9 D( T9 S: w* J: w7 t VariantInit(&pokeVariant[0]); . e a$ l" C5 j& B7 Z( r2 P$ V6 m
pokeVariant[0].vt = VT_BSTR;
5 w+ s1 p& `5 }& B; h) r pokeVariant[0].bstrVal = valueStr;: n, X3 X% {% }* o& Q0 r, C
9 i# H, l/ l& I( t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 s+ q8 E; q9 z ?( s' c, a
VariantInit(&pokeVariant[1]);
2 A0 P) D6 s* E# ~ pokeVariant[1].vt = VT_BSTR;; b/ b, J) P$ J2 b+ R
pokeVariant[1].bstrVal = itemStr;9 g8 S9 n& x# ]# d. G0 x5 H
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topicStr = SysAllocString((WCHAR *) L"system");
# T# P C. c/ L3 R+ t VariantInit(&pokeVariant[2]);
, ^ O" [+ [* x! U- l pokeVariant[2].vt = VT_BSTR;
/ \; |8 g l$ O' \: s/ g4 V pokeVariant[2].bstrVal = topicStr;! H9 d; o; |0 N" |* _
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
! {0 {+ F( R! I8 k. M$ C+ v! m dp.cArgs = 3;
; t4 [4 K! T$ {$ W dp.rgdispidNamedArgs = NULL;3 z2 k# h9 M0 ]2 q6 S
dp.cNamedArgs = 0;
, \0 c$ {2 R! I5 v$ [
- Q5 b2 L; T" D8 p# Z// Call IDispatch::Invoke()
( ~5 R# G& A. W2 D) H6 _6 D6 Q% v5 B1 A5 ?$ ?$ U0 U: w: w( M
hr = m_pDisp->Invoke(
. j8 e' e, Y" y) O# c x6 |8 K" J pokeID,
6 U1 U2 n: b+ D$ F L0 H IID_NULL,
8 _! z' B1 x; Z6 n# S, d LOCALE_SYSTEM_DEFAULT,
3 s, H! d2 t0 L" S* X9 k' `: } DISPATCH_METHOD,
) a* n& Y+ U! F! n* L( k &dp,3 b0 o2 @& C1 p: Q4 i( O( F+ q, E
NULL,
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&uiErr);
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SysFreeString(topicStr);
( z3 y6 U) C( p, T SysFreeString(itemStr);4 z, I( e0 ?0 y1 h( y2 }! T
SysFreeString(valueStr);
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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？？？
5 C) F2 l. ~) K( y5 g, t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？？？？& m, T# F+ j- v
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2.这是request的程序- x% \" S8 |9 i4 E) \+ ?( y) V
// Request a value from Extend
+ S% h1 L* _4 _$ w0 W9 z1 i; ?//
& E- \1 N% I" R) Z4 c1 P// Initialize the variant that will hold the BSTR. Set the variant's
( U/ _6 K1 D$ L) L( L# @// type flag to indicate the fact that this variant holds a BSTR. Place the4 K1 q5 D6 E4 V/ ~
// BSTR into the variant structure.3 S& q- s. ]- W) q
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) {7 M5 q3 h6 d
& A& Q& G7 x/ e+ F; v5 @1 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ b) d, B% j4 w$ @
VariantInit(&requestVariant[0]); 7 ]0 l G3 O7 k2 m3 j: B. ~6 o5 d
requestVariant[0].vt = VT_BSTR;
0 H o( {6 F! j, t1 U6 { requestVariant[0].bstrVal = itemStr;
' {( r( v7 t C
/ j, C: Z( @- ?0 i, n5 E$ L% U topicStr = SysAllocString((WCHAR *) L"system");
% w5 w$ d0 b! | VariantInit(&requestVariant[1]);
Y) F/ C) b+ ~/ w; u& C7 a/ t& _ requestVariant[1].vt = VT_BSTR;
" R4 P& l! p, K requestVariant[1].bstrVal = topicStr;4 f$ o* L9 z1 ?4 l3 R
8 @+ e% K2 d6 d( \+ s& u; s; P9 G// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;0 R- z$ H0 ~0 x( I6 j/ z' z7 {2 E
dp2.cArgs = 2;: d; ]6 I6 A: ?, `. P! G
dp2.rgdispidNamedArgs = NULL;
' [8 s7 O1 b& M4 S dp2.cNamedArgs = 0;: W( w9 l" l, n* P% n1 Y
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var.vt = VT_EMPTY;. ]* Q( X' t/ F
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// Call IDispatch::Invoke()/ M8 \( x' w* U5 D) F7 Q
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hr = m_pDisp->Invoke(
( x5 _9 `/ w6 B9 d6 E requestID,
& a9 I$ [, B$ F [! r& \3 L9 R4 h IID_NULL,: Y( C& d9 K0 `
LOCALE_SYSTEM_DEFAULT,
" m/ X6 n& i' Q" Q! W9 x DISPATCH_METHOD,
8 g% O# d2 s5 m3 e &dp2,( |: M8 u! ^, X5 N) A. ?& j v
&var,
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&uiErr);
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SysFreeString(topicStr);4 J- n3 g7 Y, t5 n; l) A" P3 C3 y4 \
SysFreeString(itemStr);3 k2 S' o. z# ?; E
请问该程序是获得extend里面的哪个值？
1 a8 Z& I8 G$ m, ]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
