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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:! _- \: @: b1 U3 T
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (2 w, c7 w9 U! X7 w/ v4 M4 p
IID_NULL, // reserved: Y! \. ^9 M5 {! F! G
&Name, // Array of names to get IDs for
- d' m i; D; S 1, // # of names in the array
1 H% z- i, U ]1 A LOCALE_SYSTEM_DEFAULT, // System locale
. Q! A6 c" @' c/ O- b. j &pokeID); // Array of IDs to fill on output# w/ O; \7 p; m [
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if (hr)
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& `" [0 p% Q# ~9 }' ]; b MessageBox ("Get Poke Unsuccessful");, q4 n+ s$ h. ?/ u* c7 l7 k
return;& t h0 |% a7 `% J
}$ Q2 ^: V# a9 ]- d& s
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/**************************传递数据给extend**************************************/
' ]- s0 a" O6 x8 P: g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
& E8 E1 t- M0 W9 p) ^( _1 c
A. g9 T: X0 {+ G/ K valueStr = SysAllocString((WCHAR *) L"1232");
; a+ U- }! r0 v3 G VariantInit(&pokeVariant[0]); 2 s j& D/ o: J
pokeVariant[0].vt = VT_BSTR;+ H8 e8 y$ L5 T& Y, s; J
pokeVariant[0].bstrVal = valueStr;6 ~9 ]* i: C" ?( r, }" J
- C5 w& ~' S* W% ~ l0 r" w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
& V$ u7 n: T/ o' ?6 K: l" i VariantInit(&pokeVariant[1]); " z( w& @+ j& X9 v. z
pokeVariant[1].vt = VT_BSTR;9 S+ F% X, {. b1 G% x
pokeVariant[1].bstrVal = itemStr;# p; z$ [3 Y8 r; O5 a+ H
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topicStr = SysAllocString((WCHAR *) L"system");
2 J! d; K0 N) z% ~5 u1 s2 U! G/ { VariantInit(&pokeVariant[2]); ! m4 J% V6 s4 T9 [* a# H
pokeVariant[2].vt = VT_BSTR;4 e% X9 m6 k8 E8 C* v
pokeVariant[2].bstrVal = topicStr;, B2 ?! Q& j2 |* Q, ~8 B9 }7 i7 K4 N
' Q& l9 f% w$ e// Set the DISPPARAMS structure that holds the variant.! D1 s! X; d3 I2 x5 Q- J |( i! }
( x: U. r: S @& {, ]0 f! q dp.rgvarg = pokeVariant;
# l5 ?$ R8 Y& {$ k9 C7 I. Y dp.cArgs = 3;$ r. d) o# U8 G+ }3 T2 G' m" ]2 a
dp.rgdispidNamedArgs = NULL;/ u0 O- f6 E9 @& q2 c
dp.cNamedArgs = 0;9 Q8 X& D* V. j& z
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
: t% F1 V3 i; w4 B/ z# M pokeID,# I$ E1 o5 N& E% b" x' i
IID_NULL,9 D5 ? Z h. ^4 m5 @3 K, S' K
LOCALE_SYSTEM_DEFAULT,0 J7 u, Z4 ~* I1 ?
DISPATCH_METHOD,5 Q4 `/ ]6 h4 l* n1 ?
&dp,
. B6 c E! w$ b/ S- T. K+ [% u1 V NULL,7 C* s9 U8 f8 ` U$ j6 [* f
&ei,) u, X$ w6 l+ C( X# q7 Q1 k1 D9 m
&uiErr);
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% w) Q, B; G$ H( H" {, T3 d SysFreeString(topicStr);& [, q8 U; O" V
SysFreeString(itemStr);0 C0 Y* |* H8 }8 l$ x! e! O6 \ j
SysFreeString(valueStr);6 X% P2 G l" g2 ~+ e" ]
$ g2 _$ s8 @8 R9 [1 ?3 {# m, O# Z: e. B
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???
( O# d i) S0 y5 S4 C' _1 F1 p+ Y5 e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????8 \0 b( b8 g2 e
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# f# Y' l. ] j# g2 t2.这是request的程序
0 c2 b- Z5 E5 T% H// Request a value from Extend
: y* X2 v# e. V( A0 `: {$ P( V4 ]//
. M3 r/ v9 r! w// Initialize the variant that will hold the BSTR. Set the variant's
2 ]; K k' F% W/ c, ^0 D// type flag to indicate the fact that this variant holds a BSTR. Place the
7 y! K3 e, s7 T" ^' g// BSTR into the variant structure.
9 h6 O- w: S# t) v! _ [$ e) R' g; [1 ]" i, b9 d0 U1 {
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' n, _- |. }$ l+ |1 S4 i M; z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 S+ H. m- z M% H' m' t# h VariantInit(&requestVariant[0]);
$ c% R& I5 A4 x requestVariant[0].vt = VT_BSTR;
5 A4 G" ?' c" k0 G* }7 I8 f requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
' q5 O! E) I( d `0 U0 z- k5 Z VariantInit(&requestVariant[1]);
$ N* B( Q# s2 j6 M# U requestVariant[1].vt = VT_BSTR;
/ j) R/ w* o2 ~5 s, O' i requestVariant[1].bstrVal = topicStr;+ S0 e) [2 V+ U1 i
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;3 K" M$ ^+ [2 y* ?
dp2.cArgs = 2;, Y3 `1 T0 V {, G" l' E8 ^ V
dp2.rgdispidNamedArgs = NULL;
- o, H+ N0 L9 U- e5 b( k dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;, T& Y9 \, L8 W$ c1 v
1 I6 g! l/ b, l' |2 j; M" b// Call IDispatch::Invoke(): s; M2 J% X% u) _+ b: `5 I
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hr = m_pDisp->Invoke(
* ^1 @) _* e2 ~, ]$ `# [- O" i! W requestID,
; r! C' f' A0 p% w6 R IID_NULL,
# s5 k! Z3 C" T5 k LOCALE_SYSTEM_DEFAULT,9 d/ v6 ^/ p/ _ y2 A( G
DISPATCH_METHOD,
. F( D1 o2 f; Y0 S &dp2,
( Z4 F, L) z( I: y; _! R &var,
1 L# u9 a( q5 ?3 Y/ W &ei,* W* ^3 p" D9 S. ~
&uiErr);9 `8 P' h- c! D! p
5 P* \" s5 P9 g9 _% q% K SysFreeString(topicStr);; W' e6 \1 n! R
SysFreeString(itemStr);
2 ^3 r: H7 u9 W' r请问该程序是获得extend里面的哪个值?
% y& {( ~! O) |2 ^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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