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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:! `" l! f# C/ ]. r1 {9 ~6 O
Name = (WCHAR *) L"Poke";
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% V' k0 N4 L# ~) ^8 r+ l0 [ hr = m_pDisp->GetIDsOfNames (5 m0 D) l2 r( a3 [- T& U* R
IID_NULL, // reserved3 q, C4 `/ ^+ u2 U1 S
&Name, // Array of names to get IDs for( G2 F! g' S% j9 d
1, // # of names in the array
. W0 R# Z& J A2 P. L' W- O A LOCALE_SYSTEM_DEFAULT, // System locale
( j2 v6 N& \! r- L &pokeID); // Array of IDs to fill on output
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( }+ }4 H( K& g3 Q I0 S* e1 L if (hr)
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MessageBox ("Get Poke Unsuccessful");2 H3 h) M, Q8 A5 u- P! n& s
return;6 m; Q' n$ A1 w A' ^( Z- L; d( G/ }8 D
}
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' q0 C5 g) A2 b: S/**************************传递数据给extend**************************************/& B, r+ X6 V* k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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. I# U0 G2 t7 I, {2 z. q0 S( @: b valueStr = SysAllocString((WCHAR *) L"1232");: J2 m2 r% N; v' G8 M7 B! d. M
VariantInit(&pokeVariant[0]); ; W. P# e2 o. e0 ^
pokeVariant[0].vt = VT_BSTR;) g; Q) E2 B1 x% \5 y
pokeVariant[0].bstrVal = valueStr;2 a4 R. `* x' H/ W) v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ ?* x$ _+ x. N' [
VariantInit(&pokeVariant[1]); : K! t+ ]- L$ D9 s, U" F1 a
pokeVariant[1].vt = VT_BSTR;. w; w' a+ Q. @
pokeVariant[1].bstrVal = itemStr;* k8 O: t4 ]# p2 @9 m2 s! K! `
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topicStr = SysAllocString((WCHAR *) L"system");3 ^. g; R" Q) K, I; t
VariantInit(&pokeVariant[2]);
5 I$ q8 k5 }/ ~$ } pokeVariant[2].vt = VT_BSTR;
. `# N/ M2 M3 n1 V) u pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant. e% e/ T! h% m& \$ S; L8 R+ p; W- v
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dp.rgvarg = pokeVariant;2 v' a5 w' |3 v1 I
dp.cArgs = 3;
% f l5 A' G; l# e; a! l. d dp.rgdispidNamedArgs = NULL;
# r) {& u9 O6 w: g% C dp.cNamedArgs = 0;
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. A9 T, t2 |0 b# g4 J6 M// Call IDispatch::Invoke()$ s8 y- K0 ~2 t
: b: `8 @8 }* b n& F. P. [ hr = m_pDisp->Invoke(
! l! X- f5 h% y/ k7 e* y$ L: [ pokeID,
) C6 u5 Z, n7 _* C) x IID_NULL, `4 Z9 a# i4 t0 \
LOCALE_SYSTEM_DEFAULT," m1 e1 v" \: M+ [
DISPATCH_METHOD,/ z8 W6 D; M( K3 H
&dp,- ^" t* t% [; r" T, {
NULL,8 k, `: c h, Q- T' X5 c2 J; ~
&ei,; V" R' i! T6 P) K* y2 s5 @
&uiErr);: K& G: M8 D! D6 @
' r, W9 B% h2 r) T5 |' t( w- ~ SysFreeString(topicStr);
% z9 h* v% {0 a7 ]0 P0 K8 n3 Q SysFreeString(itemStr);! z9 s; F* i- v
SysFreeString(valueStr);' ~# I5 Q% o* L5 W
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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???4 p" H" X4 q- p2 Z: ~7 s" V
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????4 n* q( Q( A7 x; k1 s" i
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2.这是request的程序7 m9 K# P4 V/ d( [
// Request a value from Extend
, n/ F. a2 @( Y5 f2 @, {//" t- c) f8 @- ^5 ~
// Initialize the variant that will hold the BSTR. Set the variant's
2 H8 g( H7 a# J$ b// type flag to indicate the fact that this variant holds a BSTR. Place the
2 x) w9 R2 o1 A" z: j& o: l// BSTR into the variant structure.: G( L- i. Y+ i9 E- \0 Y5 _
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ s6 d9 J2 f5 o2 I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# [ S$ x. d6 h% u& Z F! F
VariantInit(&requestVariant[0]);
& y5 a5 ]% {+ r( z1 ^ requestVariant[0].vt = VT_BSTR;. E. |; L* b7 p; d/ s3 I8 O0 ~
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
, F& l( z% X2 l VariantInit(&requestVariant[1]); 8 L9 u6 `6 g- s# l% c8 o @
requestVariant[1].vt = VT_BSTR;
7 [% y/ r& q1 l7 u o( ? requestVariant[1].bstrVal = topicStr;
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/ a, x7 J, c4 q) q// Set the DISPPARAMS structure that holds the variant.: d- R0 T& ~% P9 o9 D4 h5 y
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dp2.rgvarg = requestVariant;
' ]- n" I* m \) }7 s) C+ f dp2.cArgs = 2;/ i6 u. T; w* c% L) W
dp2.rgdispidNamedArgs = NULL;
' d& v" r" s' A* c5 H+ u8 m" F$ Y dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;& r J" ~+ S6 o& M
/ q( j- y0 q+ B# m// Call IDispatch::Invoke()& |! U V( |9 a: s2 i, J! j8 H
, G+ U' c& n0 g E9 s( @3 z" [ hr = m_pDisp->Invoke() u' E) j/ t3 u/ B- B
requestID,
! p5 m2 @7 K p( k$ y( J IID_NULL,5 c- r t4 P- m+ J% T
LOCALE_SYSTEM_DEFAULT,* g |4 u6 E6 m% b) M, ]
DISPATCH_METHOD,, I! Z6 F6 r' c! t- y2 ~
&dp2,2 q" E7 b, V* _
&var,
. O7 C& n; c. p8 [ &ei,
. [( \& w. z. }' B% G# { &uiErr);+ E5 s& @( l) N# a* i2 _' a
! a0 Y3 E+ F. t S- @1 { SysFreeString(topicStr);3 P G( }9 B1 v$ y2 r8 s
SysFreeString(itemStr);
9 _( k0 F: a% W9 P L请问该程序是获得extend里面的哪个值?3 X7 ?, r5 ^& I3 u( B& D, s4 V
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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