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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:
1 t+ ]( {. ]! H" Z' pName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (5 _4 c6 h( L M3 w
IID_NULL, // reserved0 ^8 k4 l. [9 i/ W, V' K: o' ^
&Name, // Array of names to get IDs for6 l- ]2 Z' b1 {4 m( s5 M' P
1, // # of names in the array
# O- w& T) f! H( B8 [ LOCALE_SYSTEM_DEFAULT, // System locale
, r, i' ?+ l/ |9 W& M- { &pokeID); // Array of IDs to fill on output
$ |% J: I3 ~* n & c5 x- T9 _1 l- R! b0 i( X" i( z% O- a
if (hr)1 J5 |- L2 p u: i: H [1 d
{
5 D. b) y! I( x- b8 p MessageBox ("Get Poke Unsuccessful"); N4 q+ @$ J( X1 u
return;, D# b+ h# r) S, Z, d, ]
}7 a; [# G. S7 o& u4 o, z
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/**************************传递数据给extend**************************************/
0 S+ c1 T1 X6 M pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");. K* W) _6 Q/ g) k
VariantInit(&pokeVariant[0]); 6 T: H. S0 U, T9 H& L$ ?5 [0 F
pokeVariant[0].vt = VT_BSTR;
5 e: U7 @5 T" {+ g- z7 {' _ pokeVariant[0].bstrVal = valueStr;! V& {# B, }: [, z' _% }& S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! U5 Y. C% Y/ S" d, }
VariantInit(&pokeVariant[1]);
9 X+ m2 {& m1 _' |" D" _+ \- V5 V% K1 \ pokeVariant[1].vt = VT_BSTR;
; J' E5 R4 A+ z pokeVariant[1].bstrVal = itemStr;
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1 w# E6 Q- a, u6 ?. b topicStr = SysAllocString((WCHAR *) L"system");
! A& M& ]+ Y$ ~: K& _6 c VariantInit(&pokeVariant[2]); 6 {, b6 p# T" \$ y/ G6 R
pokeVariant[2].vt = VT_BSTR;$ s! h8 x$ s+ W1 c- V
pokeVariant[2].bstrVal = topicStr;: U/ M; v! |* w
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;: ?! c6 A5 t% c/ Z
dp.cArgs = 3;
% L! d0 x2 o% v; x% }2 [ dp.rgdispidNamedArgs = NULL;
( V! a8 K# B6 u5 o dp.cNamedArgs = 0;
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. A8 A1 L5 l% F7 h+ X// Call IDispatch::Invoke()5 p! R* Q3 L% i8 e0 j
2 E5 i S6 o5 e ]$ c: O) ^8 `. U hr = m_pDisp->Invoke(
1 A/ k' L2 Z, o% v N) T4 R! W7 b7 S pokeID,
* I" L& {) ~( q# E4 ^% ?5 W q IID_NULL,0 R# [# A |9 h T
LOCALE_SYSTEM_DEFAULT,% l2 P2 c, N! x c3 T1 P+ n
DISPATCH_METHOD,
! k6 t& w' ~ ^8 B; v &dp,
5 l, G* X9 w/ V& y" o NULL,
0 K+ z: G: ]! Y3 g$ R &ei,
) S5 |0 `. `3 i% E3 @ g& S &uiErr);5 W/ A& x2 }* n' n1 Q& R5 X
* ~! T; q. H! _' R2 Z SysFreeString(topicStr);& t0 o4 G2 S, k6 f6 @: C+ I {' v
SysFreeString(itemStr);2 D9 v# e$ a7 v0 n' q# f
SysFreeString(valueStr);6 d. r8 D1 e9 L" _. F6 @2 S
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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???8 h2 B& `. U3 v! H% 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????
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2 T K1 u0 {, m8 I+ P2.这是request的程序, {" R% H0 j2 f* z. Q. K: y
// Request a value from Extend
1 I4 P$ x2 k) ]; ~3 |5 h0 x1 ?: k//
. [% a# U$ Q1 G. c E- A// Initialize the variant that will hold the BSTR. Set the variant's3 [) Z8 l8 x @
// type flag to indicate the fact that this variant holds a BSTR. Place the5 f0 s& H* Y3 U6 W% J
// BSTR into the variant structure.. s$ G# j& k' @% b
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 u& T; B3 X7 D1 b& ? n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# ^8 ~" X4 ]% B VariantInit(&requestVariant[0]);
% s& A' ~% d- ] z4 S0 c' ~$ P5 r requestVariant[0].vt = VT_BSTR;5 G, [% X: ]# y$ _( k- \$ c
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");! J4 ~% F. @6 I. e
VariantInit(&requestVariant[1]); * n4 g _) v8 d
requestVariant[1].vt = VT_BSTR;
6 y& v% C- a; j( b' q3 P$ }: _; X requestVariant[1].bstrVal = topicStr;
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) E6 ]; m# T9 m' c' c- S7 i// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;' ]" i0 x# {6 z" ?' U$ P" \
dp2.cArgs = 2;6 l* f4 u9 w0 [1 q# ^
dp2.rgdispidNamedArgs = NULL;
0 O' _9 ?& p! }$ i* K; D3 ]6 X dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;6 M* k5 r) Z5 j' l1 W! _: Z+ m6 S, \
) a& H* }! y/ R. i; |// Call IDispatch::Invoke()
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, o" h2 _) J8 n! j' c! R hr = m_pDisp->Invoke(
$ M5 {1 }0 E* W! }1 Q requestID,
" E- \+ d; c) R IID_NULL,7 z% |" N3 r6 s* l5 \+ d# v
LOCALE_SYSTEM_DEFAULT,
! p3 \ H6 S3 g4 s DISPATCH_METHOD,
, \7 ~& N5 L- s" m J$ L &dp2,
! |! N {+ L; }0 a2 _4 x( E &var,4 R+ |5 f1 g5 A/ ~* c
&ei,
! g9 D. }* S8 ~' @+ P/ T &uiErr);
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SysFreeString(topicStr);
! n, J+ R+ P& \- s8 J$ j) x SysFreeString(itemStr);+ G {$ I. b9 _0 C9 T
请问该程序是获得extend里面的哪个值?
- @! D) }. H5 K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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