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:
7 i5 ?2 Z2 r; P* e% E Name = (WCHAR *) L"Poke";! X4 M! m( v5 n% J% v& f
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hr = m_pDisp->GetIDsOfNames (2 E, ~) y+ x. T5 m
IID_NULL, // reserved
5 A) k+ N" H. V) Z0 y &Name, // Array of names to get IDs for0 C5 b* K# W4 J4 v, r- `
1, // # of names in the array
1 P9 D$ l( x# o& ^. u LOCALE_SYSTEM_DEFAULT, // System locale7 a- d0 | }1 R8 J D2 y
&pokeID); // Array of IDs to fill on output* O/ I! B6 X4 }* {0 t
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if (hr)
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MessageBox ("Get Poke Unsuccessful");
& F9 g% Q- [/ ]. t; D8 G7 k( W return;
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1 I8 h, {' b( M) n7 m /**************************传递数据给extend**************************************/: o" h' k+ r& ^* r4 E: }0 Y6 ]- E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& @4 L/ W) Z! i; F( K Z
7 Y8 Q: T A" m+ S3 f8 L1 u. V. r. l valueStr = SysAllocString((WCHAR *) L"1232");9 N; z/ @) W( h: c
VariantInit(&pokeVariant[0]);
/ Z t. Y$ u, O2 J/ G& s. b pokeVariant[0].vt = VT_BSTR;2 W8 u% j, o" b# X) F( T
pokeVariant[0].bstrVal = valueStr;5 B& D0 W W7 l3 ]8 s
$ I0 X$ G4 m1 }; g2 ]: \
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
! V' r: h$ O; O. F VariantInit(&pokeVariant[1]); : O! a/ @+ F$ x" r9 m |7 D6 P4 e( [
pokeVariant[1].vt = VT_BSTR;
6 D: m- A# y% C$ } F" p; `# E pokeVariant[1].bstrVal = itemStr;6 t( d" q6 x; ~! W+ ~0 r% `, j
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topicStr = SysAllocString((WCHAR *) L"system");% T5 D" G: r, l4 j+ D( \
VariantInit(&pokeVariant[2]); ' g+ m" e$ `" A
pokeVariant[2].vt = VT_BSTR;
, c1 B7 L3 n) q5 J- C9 W8 S pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.) B' _% w- }1 h
# W7 A0 v' b* @9 X0 ?. X% o& t
dp.rgvarg = pokeVariant;$ S# Q. R$ F) L: |
dp.cArgs = 3;; `; P9 m1 E5 G
dp.rgdispidNamedArgs = NULL;
. o2 h8 k* U3 C \ dp.cNamedArgs = 0;7 ~. j' e0 e) m$ u1 ?: Q( @& H i
$ d" Z5 l; ^ w" b% P/ M S
// Call IDispatch::Invoke()3 y$ K# s8 D0 P. \$ f8 {: `/ y' i
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hr = m_pDisp->Invoke(
' O) }3 K% G7 Q2 j8 U+ ` pokeID,: l: n3 S+ P, m0 Y2 z8 i) T" I- O
IID_NULL,8 `. b7 `3 F, w. N1 G
LOCALE_SYSTEM_DEFAULT,( Q! U5 u' `8 @4 j- S! e, c4 K# r8 ^
DISPATCH_METHOD,2 p( x& O, G2 X t9 W6 ?/ v+ d5 Y
&dp,9 S% I) A$ f3 H, l2 [ R
NULL,
, t9 k C. Z# _/ a2 G5 M$ ]1 ?: v' ] &ei,
! c8 c* S0 G5 s; P9 L- C* k' p$ F &uiErr);
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* Z x7 j+ S2 Y2 ]8 y: ?1 ^- i SysFreeString(topicStr);, a0 K1 x, ?7 j3 ~7 l& k, y3 A
SysFreeString(itemStr);* W/ K7 x3 L& [2 L( \, m
SysFreeString(valueStr);7 o; c; H6 r$ M& |( P
# J$ F& C5 p9 `7 G* S9 o 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???- X- [4 P; d) R5 }6 O
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????0 h) e/ B& r9 z
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2.这是request的程序9 `# }0 F3 H6 Y1 @4 k
// Request a value from Extend
& z. m0 G' d& ^! W/ m9 s //
. p+ E; R/ `0 y4 h d4 b // Initialize the variant that will hold the BSTR. Set the variant's$ }8 M* Y2 |3 s( k* ^! [
// type flag to indicate the fact that this variant holds a BSTR. Place the( @0 f. k+ N, h0 r$ W, {% t
// BSTR into the variant structure.. z2 j1 \& E! j* S
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( U; A' z7 J- o, B8 L! y! B
9 ^. v. V1 p/ v, Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: e8 u: h' Z* E( W VariantInit(&requestVariant[0]);
! g# L# P7 Q+ p, d7 S G/ u/ @ requestVariant[0].vt = VT_BSTR;9 j( q/ w2 Z* C% g! }
requestVariant[0].bstrVal = itemStr;
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$ `" ?3 x3 D6 j8 K" Q4 t topicStr = SysAllocString((WCHAR *) L"system");
" y9 M5 l4 A/ ~2 V7 \ VariantInit(&requestVariant[1]);
$ _* D, N7 y% B4 o( j requestVariant[1].vt = VT_BSTR;+ I# c0 M' g# b
requestVariant[1].bstrVal = topicStr;% J. Q" o; N: }# W5 {/ u
9 P4 q! Z, R* S( }& B // Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
7 }$ G) F9 y* S2 E dp2.cArgs = 2;6 u0 l" M+ s* p$ r% b
dp2.rgdispidNamedArgs = NULL;) I ^. B: Q5 Y* E' s& U' b1 @
dp2.cNamedArgs = 0; t, c0 L* @7 w7 C+ |+ W9 [% }
/ D5 E; K' {* U. V var.vt = VT_EMPTY; D' p0 J1 m6 D' K* c! s- X
3 _, N+ W# j! s$ i // Call IDispatch::Invoke()! Y$ D2 f+ G+ @3 b
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hr = m_pDisp->Invoke(
% }: s0 D* m: q: s* x" F requestID,
6 @3 r" l% V" s1 [ B9 b0 I+ I* a IID_NULL,
: z4 K G$ l3 a* I LOCALE_SYSTEM_DEFAULT,. x+ K+ |/ }* L& g* Q
DISPATCH_METHOD, `. ]; u T' ?4 X
&dp2,
, p+ u% V6 \* ?. z2 f9 ? &var,7 w7 i, W6 H% h) @, a" Z+ J8 I
&ei,
& M0 D3 y K# V* ` &uiErr); l! m4 ^, o9 o [, b, Y9 B i" z
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SysFreeString(topicStr);+ [0 y# x" P. ? W# M" K1 n' q
SysFreeString(itemStr);
/ f! I/ l: o0 `, S9 c- B7 s9 { 请问该程序是获得extend里面的哪个值?. a4 W4 ^ g: Q! p5 t( H7 c1 s( h
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????
我来回答