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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 R% M. b6 b! ~& NName = (WCHAR *) L"Poke"; v. p& }: r9 Y
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hr = m_pDisp->GetIDsOfNames (
% _ q: J' r& N9 Q' m, P IID_NULL, // reserved
- b/ Z& Y; h. B &Name, // Array of names to get IDs for1 b6 L; \5 _2 S8 G/ P
1, // # of names in the array
7 F- c- B0 A- Q$ k! V LOCALE_SYSTEM_DEFAULT, // System locale
& `3 B0 u/ ?: k0 ~' ?+ `, ` &pokeID); // Array of IDs to fill on output
8 d9 w9 R. h3 e8 T/ ~& t+ ] 1 l* J! G) H0 h% }6 ~" V' ~: n
if (hr)% Q9 ? F. n; R. ]* v
{
8 d0 t/ {& o8 A; |) C% t MessageBox ("Get Poke Unsuccessful");
1 ^# L& S1 x, z' p& _/ |5 g return;
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/**************************传递数据给extend**************************************/ }) Z* N% g: l0 N: m5 T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
1 j4 L# ^. P' U7 E 4 i7 A b4 b- [
valueStr = SysAllocString((WCHAR *) L"1232");( p/ j" o: e$ }+ C3 F
VariantInit(&pokeVariant[0]); " S# o) K7 ]1 U8 t
pokeVariant[0].vt = VT_BSTR;
+ X5 P! Z0 w7 { pokeVariant[0].bstrVal = valueStr;
9 ^# \) o' U. M7 R) ^
6 b/ W- B. Q& d4 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: K9 p8 |( W/ J+ Y# J# u" v5 J VariantInit(&pokeVariant[1]); , _; X& b9 p$ ^
pokeVariant[1].vt = VT_BSTR;
9 r' x6 O1 N a/ Q4 [: P+ s, | pokeVariant[1].bstrVal = itemStr;
( e8 |4 n! n) C7 w8 V; }
+ }, w) ^8 B3 p7 O6 @ topicStr = SysAllocString((WCHAR *) L"system");! ^, l+ p- r- B m6 J+ E* z; \# _
VariantInit(&pokeVariant[2]); ; Q- y1 b) Y0 @7 W5 U* Y
pokeVariant[2].vt = VT_BSTR;$ w! Q: |6 \. f, w2 A) C
pokeVariant[2].bstrVal = topicStr;
: S, [, O5 ~* I
# _) o; Q+ O V: A6 [7 q// Set the DISPPARAMS structure that holds the variant.
' Z" U; T. N0 b( w" S, U! Q" [ T' o3 g/ S/ z
dp.rgvarg = pokeVariant;
) K: R* A& [' n$ T' h, s3 c# g dp.cArgs = 3;1 |$ [. B) U; O. K& x; p
dp.rgdispidNamedArgs = NULL;4 T& u W x2 O
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(9 Y- R+ }# ?" I; M2 G& O1 C- D% d: W
pokeID,
! [! M& M6 N D IID_NULL,
+ S5 T8 M& X7 \1 K LOCALE_SYSTEM_DEFAULT,
' ^- ?. N" y& m5 W DISPATCH_METHOD,( N$ z- Z; |4 R9 d1 i# U' g; L
&dp,# S$ R4 s1 j4 M( c
NULL,! _* I) g# y5 R7 i9 T, B! {
&ei," K/ P0 X: u2 T/ z' C/ w1 ]9 f
&uiErr);% v3 e) q/ z" `6 w: V+ t0 k1 r" V$ a
* u' j# M" r) I* p" L5 p, J SysFreeString(topicStr);
) o& Q' ~+ f) \ SysFreeString(itemStr);
3 b& q7 Q$ B4 d, T7 P0 ?9 @ SysFreeString(valueStr);
5 j: L {9 }( \5 |9 P$ C& y. g& K p, V8 c+ ?4 t
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 {. D/ {' l. }2 L4 A9 v. 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 V* E5 E8 p5 D3 |8 n' n2.这是request的程序4 `, W1 V, I# A# q6 \
// Request a value from Extend
$ K8 e, I$ ?* @' ^//$ g- z$ O d$ ^& Y ?* a$ r+ B0 q+ `
// Initialize the variant that will hold the BSTR. Set the variant's
& `; z/ h4 v+ `" i# Z" ^5 V! U6 O3 I// type flag to indicate the fact that this variant holds a BSTR. Place the2 E% u4 `) z7 Y8 \3 m6 D
// BSTR into the variant structure.
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" E8 U9 x$ S0 H: [! h: D) S ^+ Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ |/ m5 M6 K: G) l1 ]
VariantInit(&requestVariant[0]); 1 ? r1 D) g) b
requestVariant[0].vt = VT_BSTR;
8 F1 R. L }& G, p0 c0 h requestVariant[0].bstrVal = itemStr;
5 K# }, o r% T4 _- ]- A
" V _3 k6 R1 z% h4 t6 p topicStr = SysAllocString((WCHAR *) L"system");
! c& S2 V5 @( b% H2 T VariantInit(&requestVariant[1]);
4 \% H ~% w: T1 a requestVariant[1].vt = VT_BSTR;
" B9 L) Q6 o3 R' N2 _' w requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;! t; y/ c, b, j
dp2.cArgs = 2;7 S3 e+ P# q, w, p, M5 R. O# q
dp2.rgdispidNamedArgs = NULL;
8 x0 Y$ ^ b6 u& y% j' ~4 ~9 S dp2.cNamedArgs = 0;' Z1 p, q% z9 G1 V% s' N. o
0 P: j# e) M) w( r- a1 n% ?8 G var.vt = VT_EMPTY;
E O4 R3 p; W
* Q5 H: h. Y3 G# u3 Y& F// Call IDispatch::Invoke()7 o4 d9 Z' \- H* ?8 {" h
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hr = m_pDisp->Invoke(1 X* Y# c( d* N' T! Z
requestID,
( U+ V6 U/ t/ Q8 I, Q- G IID_NULL,
* y* f8 l% _9 D+ |, u4 `1 s2 ] LOCALE_SYSTEM_DEFAULT,+ w; |( h$ U, q4 |0 z1 @; e! h
DISPATCH_METHOD,& m1 Q( v7 I0 `+ V
&dp2,
3 `; E; [7 L% S7 i8 G &var,
8 f, p+ v% f Q# J! n &ei,
3 _* u" Y6 H* r$ W/ Z: X &uiErr);
1 X( K' J1 b7 | p {
% @) y! i n& D, n7 q! m SysFreeString(topicStr);
1 a; K! w! ?5 S0 q! n SysFreeString(itemStr);& m6 ^; n6 }0 O" _8 k; ^$ z, W
请问该程序是获得extend里面的哪个值?
* q/ R& R3 J9 M/ n$ {' F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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