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:/ J) M; S7 }$ n0 B/ }5 j
Name = (WCHAR *) L"Poke";
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2 i/ y) Z/ i" \9 X- Y8 w" @8 t! ?- { hr = m_pDisp->GetIDsOfNames (+ k; D1 M5 y/ p1 g
IID_NULL, // reserved
$ x$ e/ Z" a* k3 W: h: M &Name, // Array of names to get IDs for
) P8 t3 i, z$ E7 @& b3 @0 W 1, // # of names in the array/ u& k; W* I7 a" _
LOCALE_SYSTEM_DEFAULT, // System locale
Y# x3 C4 j/ h9 _' J &pokeID); // Array of IDs to fill on output
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0 @& T: `! ?# M) J) |! ` if (hr)3 s8 \: ~+ ]$ _
{
_! V1 F7 `4 u w, G- L! b4 o MessageBox ("Get Poke Unsuccessful");
1 q: ?/ a+ L. K return;
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/**************************传递数据给extend**************************************/+ A3 a0 A v% B) J# l4 `' c2 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* Z4 Z3 ~; c+ f9 o- M" G8 x
& @" u( D4 t2 ?9 W2 [0 `% }1 |; v6 F valueStr = SysAllocString((WCHAR *) L"1232");
! c- ~# y4 {. ~% M; ? VariantInit(&pokeVariant[0]);
6 u; v4 I* n# M8 P# C pokeVariant[0].vt = VT_BSTR;
. r. E: p8 `: O6 C pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# d9 b- H+ G% s q) ` VariantInit(&pokeVariant[1]);
7 c2 \4 K4 N. J0 P4 h pokeVariant[1].vt = VT_BSTR;0 T- A) R1 K! m
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
" o1 C. H! q0 m% m. ~% \0 t k+ y/ l$ r VariantInit(&pokeVariant[2]); - `# p+ x$ }& G- c x3 Q+ q( w/ a
pokeVariant[2].vt = VT_BSTR;
$ l/ o/ T& a& ~4 N2 _ pokeVariant[2].bstrVal = topicStr;
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, A* N9 u K" ? a- M // Set the DISPPARAMS structure that holds the variant.
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% M8 v0 k+ B( C, f8 N- Y dp.rgvarg = pokeVariant;# I/ y% G/ _0 Y4 s3 z' h `
dp.cArgs = 3;
9 J2 @; G4 x, d u2 ~. u0 p3 \ dp.rgdispidNamedArgs = NULL;
" f+ O; `% h8 l- ], S dp.cNamedArgs = 0;7 e( I! l/ Q, y
, X. \( u! N; ], B // Call IDispatch::Invoke()
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8 |4 S! |8 _# U" P! Q6 t7 x hr = m_pDisp->Invoke(
6 ^+ [8 E9 n2 w2 x. _* H pokeID,
, q' n4 J% O5 \& E1 x2 P/ L* ~ IID_NULL,; V+ H) E8 v2 ~7 R/ u+ m
LOCALE_SYSTEM_DEFAULT,8 n4 ^( x6 i7 h5 D1 e0 a9 E& @% g- `
DISPATCH_METHOD,
; c/ i4 ?+ A/ ~& x% ^ &dp,% }2 m0 ^, Q& n; b1 A, x) D7 }8 P
NULL,3 s: i) `6 ?: w, d9 z
&ei,' h q0 u& i& Z
&uiErr);; L0 y% q; L" f( A; w* s
1 \2 W1 Z: S: T" x+ q SysFreeString(topicStr);3 T m0 e/ ~. `0 `3 v7 A
SysFreeString(itemStr);
0 f' P' O4 n+ \( r, | SysFreeString(valueStr);
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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 }% h9 J( |6 y, R, i1 \
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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6 N, f- Q2 p6 |2 f 2.这是request的程序& T1 o3 ^$ X+ I$ Y9 g
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's" R& I/ ?; v8 o& k) R F+ I( K
// type flag to indicate the fact that this variant holds a BSTR. Place the
# [- w; \/ B. ~ R0 F' r // BSTR into the variant structure.
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: q. S \: X' l! h1 T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
o1 y, i. _, Y2 v6 z ' h2 V- G; N9 r; s2 {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
+ c H' s, s1 e VariantInit(&requestVariant[0]);
9 x2 `. d; q) O9 C3 X requestVariant[0].vt = VT_BSTR;
x: I4 ]1 r) R9 D requestVariant[0].bstrVal = itemStr;2 ^1 H9 L! H; E9 Z, Y
: q8 ]# Y/ w$ j topicStr = SysAllocString((WCHAR *) L"system");
/ [6 p: Y9 W# ^4 L S VariantInit(&requestVariant[1]);
- d% E/ l% y" {. Z, | requestVariant[1].vt = VT_BSTR;( t$ v8 T/ C# `6 s8 M \7 l& t
requestVariant[1].bstrVal = topicStr;; q/ f, ]7 x: {2 {: l, N% z
9 W4 A& e7 @1 W H2 { W+ ] // Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
1 _" N3 S" c9 d# ? dp2.cArgs = 2;& l1 M B/ }0 v6 o, C3 y: }' M
dp2.rgdispidNamedArgs = NULL;' O! H& |4 Z3 v o T$ Y( g
dp2.cNamedArgs = 0;
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# ~5 j8 A+ h% w9 i4 R$ R# p var.vt = VT_EMPTY;
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0 H9 w( z& e/ O7 s: I# O5 l2 P3 ? }& E // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
3 u2 H4 `! h* \% E6 X requestID,
; Z9 v5 W! a" c7 P5 }- [ IID_NULL,
; t8 r0 L# Y! x5 C LOCALE_SYSTEM_DEFAULT,$ ^. O& I) a7 o; c0 L7 g
DISPATCH_METHOD,- |% r I/ e! d
&dp2,; ~4 \9 S2 |; M8 M
&var,
7 j2 x1 G+ }: l3 C0 u &ei,
9 J v& d+ Y" n &uiErr);
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SysFreeString(topicStr);
8 l2 m4 O( M- a; ~: { SysFreeString(itemStr);
+ \- m5 P8 e' H5 j. e( w 请问该程序是获得extend里面的哪个值?
5 C1 R) \4 R% D! E* J; D m 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