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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:8 N# e( v! s3 c) ^- F- f# h
Name = (WCHAR *) L"Poke";' e0 ^7 Q/ a; Q2 F5 |) A& ?1 o
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hr = m_pDisp->GetIDsOfNames (
& F3 {; F5 H' w6 c IID_NULL, // reserved# x _% D6 h N) M& _ r3 _" r
&Name, // Array of names to get IDs for
2 T% R! H9 c. J. Q0 D2 N8 c 1, // # of names in the array
4 O1 I/ w$ u9 ]/ S8 ^, e' r) e LOCALE_SYSTEM_DEFAULT, // System locale
. O+ v2 K* [6 ]1 E &pokeID); // Array of IDs to fill on output
" I& ^ y% I: Q7 t5 i $ \( l! i" g) [1 a P6 Z N
if (hr)
% @+ `' `* n: l( {# z3 U {* T/ v$ S* k8 H# b3 Z; D4 |5 Q# s
MessageBox ("Get Poke Unsuccessful");- Y. f2 D- @9 z* k5 W8 t
return;( x, o6 q& v6 p6 L R" L" t
}
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/**************************传递数据给extend**************************************/
7 u m' u/ z$ R1 w+ a+ B" F! N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ X+ q: Q. }- Z
# A2 ~7 I- G7 }; }& h" @& i
valueStr = SysAllocString((WCHAR *) L"1232");
5 U$ B- a! s- O+ W VariantInit(&pokeVariant[0]);
4 \2 u w. Q+ c pokeVariant[0].vt = VT_BSTR;* X9 l7 ^: t5 v* j, q$ e' t8 R
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% \1 m$ ]# W% R VariantInit(&pokeVariant[1]); ( i/ z+ L$ J4 w! i
pokeVariant[1].vt = VT_BSTR;
r, o9 I' P6 E8 \ pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");, ]: _) M8 _7 S, D: n) f: h; C
VariantInit(&pokeVariant[2]); ; o A7 Y" k, G1 }
pokeVariant[2].vt = VT_BSTR;
2 p4 L1 z$ ], l! ^% ` pokeVariant[2].bstrVal = topicStr;$ T* q5 {' ? v9 `9 D& C% \
6 W$ ?- W: y3 x" B# T: l7 Z4 o( B// Set the DISPPARAMS structure that holds the variant.3 m0 E$ j3 }8 u' B# @
& a* a! b4 d1 [: U2 _
dp.rgvarg = pokeVariant;
6 @/ d6 ?# f# M+ t dp.cArgs = 3;
' o' l1 N* n! Y0 E C dp.rgdispidNamedArgs = NULL;7 Q3 j. E" _) S( J
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(4 A! b7 c, _4 n; E& {& i. ?
pokeID," Q) R7 y3 A5 z" m( B2 ], B) b/ v
IID_NULL,& `# |. F7 {* n) h" l
LOCALE_SYSTEM_DEFAULT,
& @- Q5 b9 \% R+ r8 T DISPATCH_METHOD,' ?) j0 D, U% p4 }7 `
&dp,
4 A$ @* N& m& G& Y) O4 R NULL,. q8 j3 S3 _- Y7 j/ d4 u% S
&ei,! X2 U [4 [: P1 I$ T) b! J0 f
&uiErr);5 B: Y1 S, y$ R" v+ K
g1 x4 n5 U* g SysFreeString(topicStr);
+ w# {1 ]* P/ t" l {0 s6 X5 x SysFreeString(itemStr);& s6 h9 P# O' X9 ~" d+ O
SysFreeString(valueStr);
/ z8 j+ A6 ~- g) k- M. y: r- a5 T1 k# N0 p+ K3 l4 H: q; p
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???
) |" K$ p! ] U8 w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.这是request的程序: H& X! Z n# y5 G. A; R
// Request a value from Extend
4 x& w1 ?4 v, @% a//; i- x# {; M2 A% F
// Initialize the variant that will hold the BSTR. Set the variant's
- Z. e" W! T- @+ X* r// type flag to indicate the fact that this variant holds a BSTR. Place the' N5 o+ Z% h2 I9 ]3 T" n
// BSTR into the variant structure.
Z, ~1 m! A4 I1 O3 {
) v! G2 _+ i. j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
0 I4 B1 J; }+ ]
6 ?! d+ R3 s4 d. E' i6 q$ V* ^: ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# r9 K9 z }/ r VariantInit(&requestVariant[0]); $ a G/ J, [6 O7 T2 z
requestVariant[0].vt = VT_BSTR;$ v+ D: j$ L a/ J
requestVariant[0].bstrVal = itemStr;! E0 f6 x" T2 W* U ]
0 i# C5 a( U. Q topicStr = SysAllocString((WCHAR *) L"system");$ u" c1 J2 [4 s$ ]" X' a. G
VariantInit(&requestVariant[1]); 7 T4 C P$ o1 D9 H) _' @
requestVariant[1].vt = VT_BSTR;2 c/ Y- ?! W/ E- z
requestVariant[1].bstrVal = topicStr;; C: r+ `& o1 n* c$ o: |4 C& H
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
, ]1 r# H8 E# j8 M' D) b7 S dp2.cArgs = 2;" t' U+ J/ ]+ z0 m6 i9 c
dp2.rgdispidNamedArgs = NULL;
! q5 u: d8 u- k9 g dp2.cNamedArgs = 0;
+ ?; w0 i; b( J9 E: B: i) ^" L: {
9 ]4 i' V4 i) \7 ~# E1 x var.vt = VT_EMPTY;
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9 [) L; O) p* B- z" |// Call IDispatch::Invoke()' Z7 ]/ u5 ]: i7 }* W) o
" `0 [* K$ x" o$ ^8 k% l4 L1 r hr = m_pDisp->Invoke(8 p; p8 ?/ S2 L; V* [. l/ t0 w
requestID,
7 ]; e! }5 `3 k3 w; l IID_NULL,3 p- e" w$ [% ?( o
LOCALE_SYSTEM_DEFAULT,. K2 d' f( r& C7 A" |0 X( r' Z3 s
DISPATCH_METHOD,8 q0 m: l/ X7 O6 Y6 d. h5 E
&dp2,& H/ B) m/ }" w- {# B- ]
&var,
b. t; w( k* ^ B" r &ei,
& Q+ r9 x: f9 v: p4 _; ^ &uiErr);0 I4 y7 i8 T; ?( \. a0 H* ^8 u
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SysFreeString(topicStr);
- H8 K9 h/ ]2 W# r6 v+ a SysFreeString(itemStr);
6 D: {: g0 I& l) T- N2 X2 q. ~! O请问该程序是获得extend里面的哪个值?
6 i( C; f# D3 I: ~1 S' |3 `1 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???? |
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