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: 4 r. t- T/ E4 z" q' I+ |# D4 ^Name = (WCHAR *) L"Poke"; / l6 o" S9 u m1 ] ' L8 X3 m4 J1 G9 @. l" a
hr = m_pDisp->GetIDsOfNames (. Y8 l# G) P, M2 u. D+ g
IID_NULL, // reserved& B& h m8 g ^% D9 s3 @8 q
&Name, // Array of names to get IDs for% D1 F f/ d& O1 p/ Q. z
1, // # of names in the array & ^! R# j. s' z% v0 | LOCALE_SYSTEM_DEFAULT, // System locale 2 {4 A# k$ b( y- K* P! t: e &pokeID); // Array of IDs to fill on output1 x9 T" w! ?" j3 [7 w7 l" \
- V: Y# t1 M9 A6 y if (hr)* w9 b) z! P$ B3 w" A# o4 S
{1 V, B0 j4 u l5 X3 v! i
MessageBox ("Get Poke Unsuccessful");! Y S- b6 j# r5 J0 j- t
return;8 m# c2 e& f0 ]
}; c& M( w7 v7 P( x: {/ f+ v% A3 x) v
# |3 D$ L: K! X
/**************************传递数据给extend**************************************/# g) R! L" {( H5 U* s# H+ p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 m, b3 y% c, ^5 z1 ^4 a ; M3 y1 A; ^; o; X valueStr = SysAllocString((WCHAR *) L"1232"); : I; L6 ]6 t- |( z VariantInit(&pokeVariant[0]); ; v5 l' p, Y+ [4 O2 M: P; ?
pokeVariant[0].vt = VT_BSTR;# L6 v' E7 ^8 a, a. |
pokeVariant[0].bstrVal = valueStr; 7 o( G8 y1 m# o- `( } % B# s* G+ T$ ?" {/ L5 i- G" w: o; R. e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; x. M9 ?1 W# l9 u3 z- J
VariantInit(&pokeVariant[1]); $ x. A$ {4 Y: N& b; C5 R* \
pokeVariant[1].vt = VT_BSTR; ( z, C0 c2 U1 B' O6 T4 S; v pokeVariant[1].bstrVal = itemStr; / D$ j) `0 m' V: B8 }( y+ n" o6 `- G, w6 m" P9 ^
topicStr = SysAllocString((WCHAR *) L"system");6 o- X+ M- V/ k" Y& I
VariantInit(&pokeVariant[2]); 2 ` i0 w0 i. C, y3 L" D8 c
pokeVariant[2].vt = VT_BSTR;2 U+ @1 c) A' Z( [; h- H
pokeVariant[2].bstrVal = topicStr;' R Y$ x4 ^, I9 }& X. z
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// Set the DISPPARAMS structure that holds the variant. ' L6 i) {! t& l* U( O9 s; m6 C& h& ~+ [) e. \+ U
dp.rgvarg = pokeVariant; 3 F g5 M: f+ O dp.cArgs = 3;8 D2 P" a( v3 A$ z, H" h' b
dp.rgdispidNamedArgs = NULL; 2 U# e7 N" a" x7 Z" g- [ dp.cNamedArgs = 0;8 A* i ]1 k8 t! N3 L
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// Call IDispatch::Invoke() ' a0 A! D- [, ?$ L+ I' `3 N & ]5 K8 o# x. W) x# }8 @ hr = m_pDisp->Invoke( * J- n6 a) H+ U$ v& I3 | pokeID, ( h& y6 O& ]' b6 T8 B: }$ ? IID_NULL,* [, F* @1 V9 G1 E' Q. j0 U
LOCALE_SYSTEM_DEFAULT, 0 ^5 u6 Q' l0 x) | DISPATCH_METHOD, ' C8 {+ c; U: z m8 H- m &dp, + ~- P; O5 \- d& s/ [( [ NULL,! ~$ k' ~7 B' U. L" [+ ^6 p
&ei, ; [7 n9 I3 z5 C* o &uiErr);# q8 H" L9 {; X1 h
+ b3 }2 h& z p2 ?7 K SysFreeString(topicStr);6 O9 o* f3 T- ^/ O. c8 T4 X
SysFreeString(itemStr);6 h* s# t0 U/ _
SysFreeString(valueStr);0 V5 R+ W" q# E3 {2 g9 i$ S/ s; p
4 B. Q" ~1 {- y
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???" l+ L: p: n( S& O( m2 |
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????4 H8 n: ?9 A2 ?# k3 m
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2.这是request的程序- Z7 D- R L! i1 h- A, i7 b! b
// Request a value from Extend9 @9 T) m" T: O# }4 W2 [4 d, T
//- u! z4 ]$ i3 z
// Initialize the variant that will hold the BSTR. Set the variant's : g+ K" g5 h# ?) `( D/ o// type flag to indicate the fact that this variant holds a BSTR. Place the & {& H- L9 `1 l7 n// BSTR into the variant structure.2 [. k% V) S4 V) l
1 t% L+ {# b, z+ i' B/ a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . C1 I2 y8 g! h + Z3 ~& J( i* W2 t/ @4 d0 z; f' J# U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : Q: ~; N7 Y! k) B# B9 w VariantInit(&requestVariant[0]); ! V2 Y) G8 l0 ^9 {; F requestVariant[0].vt = VT_BSTR; 1 _5 h. U; F8 H' r$ c6 N3 f requestVariant[0].bstrVal = itemStr; 7 D# D# r/ k) ?( K9 q* H 2 B; G! M$ x; O+ a8 W; o topicStr = SysAllocString((WCHAR *) L"system"); 0 P7 G6 v, G; l! q% D- r3 n5 g VariantInit(&requestVariant[1]); 3 @3 R. h5 b' {$ F
requestVariant[1].vt = VT_BSTR;: J1 u5 b3 @' D. z/ U$ k
requestVariant[1].bstrVal = topicStr;" c" ^% Y* Z; W
8 Z. C6 U3 R0 a( H// Set the DISPPARAMS structure that holds the variant. / ]! |& T% {+ X; ^/ a & {' Z/ E4 L! `7 ]2 m1 ?1 L7 J& ?: ^ dp2.rgvarg = requestVariant; 3 _) T. p) g4 F' k% K dp2.cArgs = 2;' v& n7 ^+ X9 Z- p
dp2.rgdispidNamedArgs = NULL;& z& B6 P8 s y9 W4 z
dp2.cNamedArgs = 0; / _( i/ }1 ?6 r3 L/ G% _ + T7 S3 t6 l0 I6 ]+ d3 O, P var.vt = VT_EMPTY; q0 b9 X! j/ @0 p5 W* q
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// Call IDispatch::Invoke() * D& q, q9 c! K( X- u# o: {0 i) ^1 f4 n' N6 Q1 i, M1 R* b- o1 z1 N
hr = m_pDisp->Invoke(( ?5 x; v/ }4 d* |$ Q2 x5 D
requestID,2 s( `* e. S4 y' s2 o8 N
IID_NULL, 7 @+ E1 j$ y1 T" ?, A LOCALE_SYSTEM_DEFAULT,8 W* e% C2 m( k" l' v5 n6 ?
DISPATCH_METHOD, ! c8 z- j3 ?) p0 `2 k" ^ &dp2,+ o( J% S* w7 A) S) Q
&var, - t V! U5 R6 ~- i &ei, ) G/ C; s ^' W8 V( E7 l &uiErr);# z( l3 N3 c- j, U2 m* Z2 \
1 s9 _7 _9 I! o! Q0 k SysFreeString(topicStr); 6 E% |, m. g2 Z1 j& j' y SysFreeString(itemStr);$ m. q# y: b/ T
请问该程序是获得extend里面的哪个值?7 l8 u$ j$ y; n" i0 |
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????