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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 C6 v+ K J0 f; ZName = (WCHAR *) L"Poke";# X& k: S n0 v8 C
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hr = m_pDisp->GetIDsOfNames (
, ]4 J! Q3 I* T IID_NULL, // reserved
% f* Q5 E. ?- p% t$ j6 r7 B &Name, // Array of names to get IDs for6 F' m k' p" U# j8 _. y
1, // # of names in the array
# @; B2 U* Y, \, s LOCALE_SYSTEM_DEFAULT, // System locale9 A: u- o5 p; x1 G8 d$ X/ y& n; v
&pokeID); // Array of IDs to fill on output/ p% D9 _; ]# `9 U8 [' L
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if (hr)! r" [' X8 r$ b# i) l! C
{
' W/ Q* x0 r; C/ O( L, J MessageBox ("Get Poke Unsuccessful");) U0 U& z8 v# c' B' L6 ?% x
return;5 L& W6 @/ l5 v' C3 h
}
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/ v2 R, A# v! P; S2 V/**************************传递数据给extend**************************************/
# I m8 B# C, ~: x7 c! h0 p pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! S+ U/ L7 \5 v9 v8 O9 P, r
+ E* l2 x" |1 R, w( W$ P valueStr = SysAllocString((WCHAR *) L"1232");2 `& I' X, L$ |, U) ?% X$ ]4 R
VariantInit(&pokeVariant[0]); ( U G: |% l3 G/ B$ @# o; B4 C: u
pokeVariant[0].vt = VT_BSTR;
) K, C& K. R5 x; C: X4 d4 b pokeVariant[0].bstrVal = valueStr;/ g+ Z$ k5 {8 a
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 m Y9 r" n" q6 c( G, d& d
VariantInit(&pokeVariant[1]); 8 a0 ]! n& P% e% V, M/ q h
pokeVariant[1].vt = VT_BSTR;
* U9 F I5 O3 S! I0 u pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
. j7 O! j4 i. q VariantInit(&pokeVariant[2]); ( Q# t/ v8 \( ] o9 H; A
pokeVariant[2].vt = VT_BSTR;+ s5 q3 h' {+ X5 h
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;% j0 r; w3 o. J. C
dp.cArgs = 3;" L5 y! p- t, \& b0 W
dp.rgdispidNamedArgs = NULL;4 |, C1 i I' i8 o7 |7 c7 W
dp.cNamedArgs = 0;2 m) a( ~) ~+ ]7 o, \
6 Q- [/ [9 K5 f' f5 Q* x// Call IDispatch::Invoke()
* i& L+ j1 Y: ~8 n! l# a8 f, R( B! B7 h' I! T7 N
hr = m_pDisp->Invoke(: f% p- U& O" n- _
pokeID," z- z( U& v' }) F5 S
IID_NULL,
- N) f! K% D- J5 ~ LOCALE_SYSTEM_DEFAULT,9 P* }. P5 H$ A+ w; y- a3 L
DISPATCH_METHOD,
7 ]( j: b [9 b# { &dp,/ T$ U/ B# \3 L2 x# r
NULL,
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&uiErr);
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SysFreeString(topicStr);
/ p4 t7 E( b4 W9 m3 c: v SysFreeString(itemStr);
r- Z" O. F0 h4 K3 P$ S5 R* w& U* i SysFreeString(valueStr);" f! s# ]. D! l/ V0 c1 H0 i9 A
( Y. m$ j: A, @: ~4 o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 f& L$ j) P) Y7 ~
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. R9 |; ]0 M/ ~) f, [% L5 I& P
// Request a value from Extend7 t1 s9 ?. F. c# E. k! Y
//
0 m! P4 j2 i' m' S/ T! j3 o) |// Initialize the variant that will hold the BSTR. Set the variant's, K! t8 @1 ?$ z
// type flag to indicate the fact that this variant holds a BSTR. Place the A5 V" L& ~! o( M( j2 V, S* O
// BSTR into the variant structure.; q9 G& k0 h. o1 q% Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 f$ g* s) j7 Q0 J! i
VariantInit(&requestVariant[0]); 7 u s9 q9 }0 K, s8 e
requestVariant[0].vt = VT_BSTR;; }* c% m4 D2 P4 i8 c: G8 `9 S3 A
requestVariant[0].bstrVal = itemStr;
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7 N, F4 y+ E+ D# y5 G3 N% \2 ` topicStr = SysAllocString((WCHAR *) L"system");& k5 R: X% t, }" n) t4 k# p
VariantInit(&requestVariant[1]);
( I6 t7 v, _2 \% y. o: u' h requestVariant[1].vt = VT_BSTR; D( `- a2 K9 t9 g# G' K' a0 G" R
requestVariant[1].bstrVal = topicStr;6 n' a' d. w2 L% f6 U% o
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// Set the DISPPARAMS structure that holds the variant.# w9 ^# U' o* j' R" P& u/ B& a; J
% h; x% J. H; X; B. i dp2.rgvarg = requestVariant;$ u0 S, E) E" R% D9 b
dp2.cArgs = 2;
7 s, V$ c2 C1 G9 j2 b1 x- q dp2.rgdispidNamedArgs = NULL;
9 A9 |; I" `! d' X% @ dp2.cNamedArgs = 0;
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5 x1 D T2 P6 t9 T3 e var.vt = VT_EMPTY;: f, J3 I! V4 L4 A4 {6 f! }1 h
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// Call IDispatch::Invoke()
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0 k/ u4 X8 \. A7 M- B6 d hr = m_pDisp->Invoke(
& Y9 J$ r: l, z0 n) d ~6 B requestID,1 `: H# O0 {6 X. B/ L% A8 Y4 V
IID_NULL,
6 U# Q G N% x9 T* d: w0 _6 g" I LOCALE_SYSTEM_DEFAULT,
6 a& c/ X \/ W, F DISPATCH_METHOD,
. o4 H9 } _7 o3 u3 A. Z &dp2,
! t0 R# N& | K &var,
; X2 F! r t1 _/ v &ei,
9 x3 ^4 u$ m* S$ ` &uiErr);7 }) F4 y& t# R1 q, O) S
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SysFreeString(topicStr);) H" N+ [/ ] n( |- b$ P8 P
SysFreeString(itemStr);
/ X) @/ q2 C1 v$ s& w0 p3 i- ]9 k请问该程序是获得extend里面的哪个值?. I8 A0 I* b$ E* [
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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