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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:" |9 B6 j6 v7 @8 i
Name = (WCHAR *) L"Poke";
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5 r# I# `; v1 i hr = m_pDisp->GetIDsOfNames (; `& @! l# Q% t' [
IID_NULL, // reserved
3 d7 @5 {! i$ X4 I; a &Name, // Array of names to get IDs for
: H: {2 J% _& M6 y 1, // # of names in the array
5 h# d1 R4 ~& v* ?. U6 P& ~ LOCALE_SYSTEM_DEFAULT, // System locale
5 q& p+ W; |$ P7 }" E &pokeID); // Array of IDs to fill on output
% }9 z" }, Z: M: a8 o. X
* b* L# j2 ]1 M8 x: _) n1 x if (hr)! n" J" ]; A+ P" a1 j4 d
{
# k" r2 H3 h* y" q MessageBox ("Get Poke Unsuccessful");
2 L- W5 U6 ~: G6 S) B6 R return;
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/**************************传递数据给extend**************************************/, W% ^' K+ g# v% R* a4 b& g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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: g3 d8 O/ r" g+ `) A valueStr = SysAllocString((WCHAR *) L"1232");7 Z% _; m" Z' k- `+ m/ p! Z
VariantInit(&pokeVariant[0]); ; z6 `2 W4 P1 g9 ^; }
pokeVariant[0].vt = VT_BSTR;
' W1 c+ S) _9 ]8 E pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ \+ l$ ?9 I5 i# i) L
VariantInit(&pokeVariant[1]); " ~. g% G: [6 J* H+ a+ k
pokeVariant[1].vt = VT_BSTR;% }: }* D" T( [4 {! x( |' W
pokeVariant[1].bstrVal = itemStr;. u; x) r& {+ s. |9 H6 Y
* {. C" [+ U" h, M4 D# n u& F6 h topicStr = SysAllocString((WCHAR *) L"system");! J) [" h& F8 |8 r: x, ]
VariantInit(&pokeVariant[2]);
5 Y' K+ O3 w! R, c: l1 f pokeVariant[2].vt = VT_BSTR;8 g' f$ d3 o: L3 ~) `& r
pokeVariant[2].bstrVal = topicStr;; X$ m1 k& [: b Y P- }
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// Set the DISPPARAMS structure that holds the variant.% K4 H" f6 K3 O( k$ }3 \
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dp.rgvarg = pokeVariant;% u3 c2 x3 Z1 A% \; i
dp.cArgs = 3;
5 w% A3 A# Z3 f: V! a dp.rgdispidNamedArgs = NULL;
& ] S% e7 Y S0 a: y dp.cNamedArgs = 0;
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; [/ ]' ]/ ]2 Q9 t1 q6 }: t// Call IDispatch::Invoke()
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* q- s7 ~% x! E2 ^* v) f1 G6 S1 y hr = m_pDisp->Invoke(. O& {+ Z. ^% Z) ^; m- D- \* W, }
pokeID,
( S- l& L+ e7 c2 J IID_NULL,0 o* P# R& O0 S& U& \
LOCALE_SYSTEM_DEFAULT," R Q9 N0 _* R! d- M2 u
DISPATCH_METHOD,
$ g6 v8 f) q# U &dp,
3 F$ [* ~1 @1 }* L NULL,* O. X5 p9 Q3 z$ V0 Y1 \7 i
&ei,
4 E1 C. j% k# t6 {6 w8 j &uiErr);
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SysFreeString(topicStr);
$ e# g# K) q4 L* Y( ~ SysFreeString(itemStr);
* x# ^1 J8 H* y! g4 ` SysFreeString(valueStr);) t0 d" y( F8 Q0 x& h" L* F- g
+ U; w% a" g1 Z0 T, |& ~+ d
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???
1 t D! _2 s) n: ~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 R& u! C7 \8 a2.这是request的程序
0 U- Y" L' [3 x4 U) |2 S& m, }// Request a value from Extend0 C5 f, Q7 b) r5 k% K( S1 N: h
//4 d/ {- p5 V0 t. Z
// Initialize the variant that will hold the BSTR. Set the variant's& L. J2 y# t! m2 Z5 W
// type flag to indicate the fact that this variant holds a BSTR. Place the8 ]$ F' v, S5 w) f" O' {
// BSTR into the variant structure.; r/ C: F+ c9 f2 L
2 o6 ]1 p, [. W requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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2 Q1 X( W6 b( @, ^8 P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 c9 q0 [, s$ R" S' z9 W+ I. t9 A
VariantInit(&requestVariant[0]); : l* d. m7 }1 b
requestVariant[0].vt = VT_BSTR;
9 I# p! t: z7 m0 V requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
+ i% O8 U0 D; [! I- |) |* b VariantInit(&requestVariant[1]);
! C; l/ V/ b& `* w) [, F: b Y7 v requestVariant[1].vt = VT_BSTR;
" E/ O% \9 y/ Y `: ~ requestVariant[1].bstrVal = topicStr;/ E& F1 _ W5 m+ C4 l
: o6 W4 n4 B$ I% M3 k7 X3 e6 u// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;2 d; Y* B1 l9 |* l- x; |5 n8 g
dp2.cArgs = 2;
. \+ S0 V- T: B! e) b# A- f1 L dp2.rgdispidNamedArgs = NULL;; P' [5 b, u; j
dp2.cNamedArgs = 0;; b. V C. C K L
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var.vt = VT_EMPTY;1 a# |0 N7 Q5 G2 t: z3 T
% `0 \, `1 w7 F" o8 d8 z7 A// Call IDispatch::Invoke()" |2 b( G2 p6 \* U( o4 m9 a
& t% E% I1 W, c hr = m_pDisp->Invoke(. L& V- F" {( x9 L) z* v2 ]; x( m0 e
requestID,1 q( W6 Q$ e" {" B2 }" B3 ^
IID_NULL,2 x4 G2 E* R; Q8 r) m
LOCALE_SYSTEM_DEFAULT,* A, ]5 K7 l1 O3 Y: y$ G2 \: l
DISPATCH_METHOD,! S/ [4 @7 X# H4 V# b
&dp2,
6 t' O" w' H6 y2 I9 e* [ &var,- O# h# I4 k9 q/ L, p
&ei,9 Y; w2 B/ F u0 j& t# n( \
&uiErr);6 p: g# ^* R# Y* K
3 O8 L6 `, W! N) _ SysFreeString(topicStr);: W6 b- ~. C% t. L: L4 I, F. a2 {8 ~
SysFreeString(itemStr);
x+ B2 _7 B( E/ P2 q* `" o( Y请问该程序是获得extend里面的哪个值?4 i8 J; G3 R* j" ~' e h% W7 i$ G
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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