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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:
2 s1 R1 B# C; l5 DName = (WCHAR *) L"Poke";4 m7 y7 I1 g6 I& r$ a
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hr = m_pDisp->GetIDsOfNames (% y" |1 U$ k5 O
IID_NULL, // reserved
2 Z' h- B8 x& d &Name, // Array of names to get IDs for8 W: k! r8 H& U6 L
1, // # of names in the array9 J* V: N- S/ S5 t' E- s* G1 e
LOCALE_SYSTEM_DEFAULT, // System locale
f6 ?/ g: A$ Y9 L. C# W &pokeID); // Array of IDs to fill on output1 Y; s& Y+ j2 d+ r
9 A! P6 h- i7 @% H- l
if (hr)& Z: w; a7 P$ ^ S$ u! A
{
3 l3 i2 g+ r! r5 B, a% Y1 V( E; o5 G2 K MessageBox ("Get Poke Unsuccessful");
4 H3 A9 q" ^8 K+ Z- G return;$ y. Z R8 a) h; S5 P; r6 P* C
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/**************************传递数据给extend**************************************/
: ~7 ]) I6 y1 B& J/ t" V) K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 d' w; F1 Q& t
& R, s- r- k/ k1 u; C valueStr = SysAllocString((WCHAR *) L"1232");
9 Z" _& h( N* y" g VariantInit(&pokeVariant[0]); $ B& a* A1 M# F$ [
pokeVariant[0].vt = VT_BSTR;
7 A/ | H* h, ^; H" a pokeVariant[0].bstrVal = valueStr;
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$ j; I1 o9 a6 v Z: ^+ G- \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& H: [% ~$ j# K9 l% }" r
VariantInit(&pokeVariant[1]);
T2 R8 {: C8 A* L pokeVariant[1].vt = VT_BSTR;9 x* I3 T4 v7 @& k8 y) d+ Z
pokeVariant[1].bstrVal = itemStr;6 M: q. E% Q+ n! [1 x
f7 I4 M# N2 I! w, H7 {! Y topicStr = SysAllocString((WCHAR *) L"system");
1 U" R, Z% G% e) h VariantInit(&pokeVariant[2]); ! U a0 m% s! p1 W( }( p8 w
pokeVariant[2].vt = VT_BSTR;' G% J5 h3 _/ `9 T, ^- Q; Q8 a
pokeVariant[2].bstrVal = topicStr;9 o" ~" d* ~- ~4 b* e7 p. j5 ?
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// Set the DISPPARAMS structure that holds the variant.
3 N0 Q/ _! S' ^. X5 r% ?1 J9 M: F4 [1 {
dp.rgvarg = pokeVariant;9 _9 s2 w5 X0 k" y
dp.cArgs = 3;3 {: R* }+ s' K6 G( X
dp.rgdispidNamedArgs = NULL;
" ?) u; V+ |7 A: O' v dp.cNamedArgs = 0;4 V9 }; d1 @- q& P; D* l
2 T/ c* ?! i7 k; y3 S, T, e& w// Call IDispatch::Invoke()* e; g& c& p6 h6 |2 `, b' p
& g6 _5 q. o& C hr = m_pDisp->Invoke(
; Z1 J: @7 R. D" n pokeID,
. _. m/ f3 ?8 L IID_NULL,7 z6 Y$ W C; a& ~) z& V( F4 W
LOCALE_SYSTEM_DEFAULT,
+ N- w7 J3 t% f- ]9 Q3 b- ]" C DISPATCH_METHOD,
+ b7 U% ` {8 O2 s3 I: m. L &dp,
" N& c% G# O- M, @1 v7 e NULL,
' U7 s0 o+ R. ]2 g7 k &ei,7 Q ?/ ^+ L: `
&uiErr);
1 n; V$ Z6 d; e
1 Q) C/ `! G0 A5 @ SysFreeString(topicStr);! _. ^) T# Z: V9 ?. }
SysFreeString(itemStr);
+ V5 V6 e2 g- G: X7 e3 c; Z( y R SysFreeString(valueStr);4 f5 ?! ]! B" B4 Z# L
z& W% \+ K& [8 i* g1 t1 m, a
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 `: a& Y6 _9 p1 O% [- c
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8 b; e$ m# i2 z" ^# \/ V% M
// Request a value from Extend0 V6 W! [# ?( M( l
//
, {5 J- E/ ?. I// Initialize the variant that will hold the BSTR. Set the variant's- H7 J1 q$ W: z, v- S
// type flag to indicate the fact that this variant holds a BSTR. Place the
2 ?5 T- }3 w3 O+ K; C// BSTR into the variant structure.6 A0 L, g1 z1 {% R, J. M% F
+ O; a: Q) d6 F" d
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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0 B. l; v# m( l2 w2 L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 k# A2 @8 b, C; z. x VariantInit(&requestVariant[0]); ( k. s5 y d! H* Q
requestVariant[0].vt = VT_BSTR;
; U1 K- \% F H; v6 c* `/ b' n requestVariant[0].bstrVal = itemStr;2 g R$ h6 M; b
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topicStr = SysAllocString((WCHAR *) L"system");( y+ R" H0 i. v/ T" J' o+ @
VariantInit(&requestVariant[1]); 5 k" N6 h E4 n2 ]# ~
requestVariant[1].vt = VT_BSTR;
/ C4 _4 h- v3 G" }- ~# K% | requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.. E( u3 D+ e, r2 {* Y7 j) g; ^
/ y) ^# L( { n0 c8 f$ J* O5 L+ r
dp2.rgvarg = requestVariant;. T2 q, R) F# a {2 {3 g8 g
dp2.cArgs = 2;' d5 Y$ V1 l+ P8 U2 B: X# B
dp2.rgdispidNamedArgs = NULL;: L1 U6 h' m1 S s% z
dp2.cNamedArgs = 0;* S p- f/ r U6 g: K8 M' F7 V+ E
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()+ ?& H# W2 h! P3 g( g6 Y0 X
3 t4 I. t# M+ b9 D hr = m_pDisp->Invoke($ w" ]- c- _6 j# h. }: o
requestID,: s7 U3 G% C& v
IID_NULL,1 @& J- H, U6 w- F& R# B
LOCALE_SYSTEM_DEFAULT,- e- {; T7 k( N3 f- z% S2 m) k7 u
DISPATCH_METHOD,
* J( q8 k6 D9 v, h+ M% Z3 ^ &dp2,2 `5 _& R/ D) j* u9 W- l! {
&var,! Z. g) ]" R) Z( f& a# o
&ei,1 _) b" g% c( x3 D; R; w2 i1 B
&uiErr);) w# m/ d! [2 P# f1 Z
5 r9 J2 K* }5 E# t/ ? SysFreeString(topicStr);9 K6 \! K. G& F
SysFreeString(itemStr);
* m9 Q$ a- P8 ~请问该程序是获得extend里面的哪个值?+ q( b/ l1 f Y
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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