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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:
& V$ R% j2 O; j% S% K' V$ iName = (WCHAR *) L"Poke";, Y& n) R" r0 E2 M2 e2 m
7 z- t* y2 |8 ^7 E# X. P2 A/ d1 @+ W' ^ hr = m_pDisp->GetIDsOfNames (0 P' C0 R. i* k/ }# H
IID_NULL, // reserved2 }' j" @6 r* G& r4 Y: V
&Name, // Array of names to get IDs for% J3 s5 j* o; `: h* G# D
1, // # of names in the array
) D h7 f! l! X' T LOCALE_SYSTEM_DEFAULT, // System locale
; n$ b Y T+ ^! a &pokeID); // Array of IDs to fill on output
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if (hr)7 {1 S8 B9 A; |3 u8 t
{, Y' E; j: V4 a. U- X* d- F/ v! h
MessageBox ("Get Poke Unsuccessful");' y" k9 m2 @# V
return;7 I" ]+ }( e- o( q& P8 }
}
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/**************************传递数据给extend**************************************/
4 E# X. V% _8 S! U; A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* ?) F6 ] d2 e9 `% V3 [. N
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valueStr = SysAllocString((WCHAR *) L"1232");
8 v" W: k2 V# M5 r5 h. T VariantInit(&pokeVariant[0]); V8 O$ A; K& y1 P5 W0 D0 R; D
pokeVariant[0].vt = VT_BSTR;0 o% K( T O2 f' H$ Y
pokeVariant[0].bstrVal = valueStr;
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1 q! f1 |1 }0 h- l j, [8 s E V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" Q- F+ g @" {5 {5 l2 s
VariantInit(&pokeVariant[1]);
! i \/ I/ s8 h) E7 c" k pokeVariant[1].vt = VT_BSTR;
" f! h: y* i" q% Y$ I! X pokeVariant[1].bstrVal = itemStr;- F& @% f; V' G6 T
8 v; q z# M* q# ` topicStr = SysAllocString((WCHAR *) L"system");
7 Q" F+ J- O" v+ f: }% w. P VariantInit(&pokeVariant[2]);
5 A+ }- _* Y% o+ C# F2 V6 c, z pokeVariant[2].vt = VT_BSTR;' \) o) I K8 u2 `& B
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;+ S/ ?5 I% a; J( E/ c
dp.cArgs = 3;3 o' | w+ O3 L1 b
dp.rgdispidNamedArgs = NULL;$ s0 ]% j+ x) q( j2 ?4 R
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(" m3 }, g# s. C3 K9 X7 B
pokeID,
( e5 V8 M. B9 X9 ?" U+ m5 R/ |; ], r IID_NULL,
% O' @% b; H; Z+ P1 d0 M LOCALE_SYSTEM_DEFAULT,
+ `: `9 p. [3 V% i% }2 P# {) D% e DISPATCH_METHOD,
! H- i" l+ Z# m &dp,
3 R( M8 z/ {7 v NULL,, x5 X. N" S a# n' B" U
&ei,
" E! I& t1 s+ S! n/ i &uiErr);
( i" m' J2 k2 R) s! C$ f/ R2 ~
4 c C7 ? V/ c; u6 y SysFreeString(topicStr);
, N7 J3 [* D* \2 X+ _ SysFreeString(itemStr);. \) Z# R6 g+ ?" n3 d- B! H
SysFreeString(valueStr);8 ^& k; w& e! I E+ m
4 f9 u/ P: e! E: e f# D r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???0 ^" u S6 w8 E) W
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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2.这是request的程序5 x( s! V' B. d s. H
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's" i2 s( }; t+ {# j: q! _
// type flag to indicate the fact that this variant holds a BSTR. Place the5 Y! u3 X9 H8 ^5 D6 d& i2 p* A
// BSTR into the variant structure.
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$ G5 u6 x9 |: n- G/ r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) e. R& v2 b2 S2 p; y4 v+ ]. J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ n' `8 B* j& L: h7 h% l
VariantInit(&requestVariant[0]); ( Z- \% E; B d6 _6 o% v- n
requestVariant[0].vt = VT_BSTR;9 |/ \& s' B: j# D6 O2 H( A
requestVariant[0].bstrVal = itemStr;
- \* r" { n& L( k; ?9 r' y+ i0 q
topicStr = SysAllocString((WCHAR *) L"system");& l% G% n; [9 \8 V
VariantInit(&requestVariant[1]);
: `) d- n! t3 y# q3 t6 u* E requestVariant[1].vt = VT_BSTR;. S# s+ I! c1 {0 Q8 F! K
requestVariant[1].bstrVal = topicStr;- M7 S7 o8 ^. f4 R
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// Set the DISPPARAMS structure that holds the variant.
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$ w5 c$ K( a3 q8 m L( U dp2.rgvarg = requestVariant;0 v& E! F5 x. O
dp2.cArgs = 2;
% c p; |) _. n# Y# q' w dp2.rgdispidNamedArgs = NULL;2 o8 R: `9 B& N3 K6 [$ p" N2 R
dp2.cNamedArgs = 0;4 Q- o* h: b2 {! R" G( Z
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var.vt = VT_EMPTY;( m6 a$ T! j- N4 r1 u9 {
/ K, _& W! T4 `! g" ?2 [// Call IDispatch::Invoke()4 Z5 V7 ^# O" _/ \# N/ M
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hr = m_pDisp->Invoke(
/ Y" R9 M# u6 m6 M requestID,8 L3 n3 F/ h+ Q! i# n- Q$ o
IID_NULL,: p: r, B! J# q3 r8 [+ w
LOCALE_SYSTEM_DEFAULT,# q8 E. ?5 K" k+ I& @8 V g
DISPATCH_METHOD,
8 k! ^$ r" o x4 O. O9 c &dp2,
9 E+ J; n0 f$ S# F: h &var,. Y+ h' d% x3 o5 B7 k. h2 i
&ei,* x9 E, A/ H, c& u# }; j: ^
&uiErr);
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SysFreeString(topicStr);
. w1 ?% B: J) V) A1 [ SysFreeString(itemStr);
8 W! U2 x9 f5 m+ O6 I* a& ], ~请问该程序是获得extend里面的哪个值?
7 H( \* Z5 s; _! b3 N0 ^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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