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:, P E+ e9 p( V3 A4 V
Name = (WCHAR *) L"Poke";4 p# ?! f, m+ x4 E
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hr = m_pDisp->GetIDsOfNames (4 ]1 K( o* f9 N( P5 r
IID_NULL, // reserved 4 n4 Q. V: ]4 w* h &Name, // Array of names to get IDs for: ]" u6 D; s( H5 r* P
1, // # of names in the array + T Y) c) s! ?' ?* Z* v LOCALE_SYSTEM_DEFAULT, // System locale& H+ j/ \$ {0 H. g
&pokeID); // Array of IDs to fill on output 0 W9 x& `% q) ? d ' \1 c$ \- W. O$ M! V. I! d
if (hr) ; R& T2 @( S0 _2 P) u { b X- E& |) _4 X! l1 e1 U% V3 x( t MessageBox ("Get Poke Unsuccessful"); ! `2 d: m8 Y+ _5 c8 o return; W% |& P" I! n) `+ ^$ p3 s) W" t7 i } & u5 r: j. t; D- L5 |2 s& J9 T8 k6 g
/**************************传递数据给extend**************************************/ ! g1 X4 r6 K3 L: d# p pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 ~3 A8 r: @* q ^
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 z* [: d3 f2 g5 ] VariantInit(&pokeVariant[0]); 9 q I# M* W# s, H* Y) C
pokeVariant[0].vt = VT_BSTR; : w, }9 _, v6 f7 ^ pokeVariant[0].bstrVal = valueStr;) |' S9 _/ [# s" r. S
6 E- r- q5 \# l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' S% c% z. q+ G! b VariantInit(&pokeVariant[1]); ; X( |( I/ A' ^4 }, r
pokeVariant[1].vt = VT_BSTR;& G) s& z. y6 f$ V
pokeVariant[1].bstrVal = itemStr; : U! L1 F7 Y, E; g; W8 G% \4 W/ u1 [! O& v
topicStr = SysAllocString((WCHAR *) L"system");4 q5 A2 G( h) ]
VariantInit(&pokeVariant[2]); ( P% s! \. t4 ~: ?$ s) `
pokeVariant[2].vt = VT_BSTR; 2 b3 t* T0 Q: k& K6 b3 M pokeVariant[2].bstrVal = topicStr; 6 B/ r% ?3 L& c4 q0 E3 N4 ?1 O& F6 k! z% D! H/ z
// Set the DISPPARAMS structure that holds the variant.# ?0 }/ A( g5 ~6 @8 i8 ]$ u
' [% W0 \; O; k4 Q& l$ _ dp.rgvarg = pokeVariant; 5 f6 V5 Z! V( Y& H/ O dp.cArgs = 3; * {! U6 K' h: A/ i/ z: S. ~9 m dp.rgdispidNamedArgs = NULL; 6 ]! Y2 Y0 `& t+ P dp.cNamedArgs = 0;/ z# t5 ]# l9 [5 P/ Y( M6 N4 z
- y8 w3 ^/ I/ v8 @5 X// Call IDispatch::Invoke() - A2 y6 u, R+ d ; ?7 r! U9 y6 o hr = m_pDisp->Invoke(3 a* r8 g9 }. G
pokeID,4 n$ T# l: ~ V1 ^. H( W
IID_NULL,- h7 i1 _. _; U k; U/ B
LOCALE_SYSTEM_DEFAULT, ' G6 _' x( U! Z DISPATCH_METHOD,3 D+ f" x; W" i0 `/ ?
&dp, 6 A# d; [0 }, d4 n" I0 k9 r/ l$ R, h8 s' ] NULL,* b/ d% L4 u3 y5 c J! R3 t
&ei, # X2 d3 s9 ?9 {; X! V8 h. W &uiErr); x n0 o0 ~. Y$ s! s! ?% e& l. L' m4 q M5 ^ y& x3 W" g) Q$ `" i
SysFreeString(topicStr); " g$ `; J+ ^! q" `; u! D6 K* u$ o( g SysFreeString(itemStr);* C. _6 T u8 U4 q/ R
SysFreeString(valueStr);; N; n( X3 B7 A& K
; u7 A- C" s$ `5 N+ S9 K' I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???* W( U. Y- T2 n0 y7 I
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????5 ?; B# _/ v$ ^% u+ X7 w$ v1 {, }( Y
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+ c% q! G4 H. S1 Y( _$ Q2.这是request的程序 - a9 E/ m1 m6 C2 D, {$ P// Request a value from Extend * \$ F x% [: L& b! Q8 y& z; m//5 c2 o5 v0 J! g1 L
// Initialize the variant that will hold the BSTR. Set the variant's 2 x$ ]. Z8 Y- F2 ~) i ^4 v& J* o// type flag to indicate the fact that this variant holds a BSTR. Place the , S+ d/ e Z6 C) z// BSTR into the variant structure. 7 c, P1 t% U* `/ d, h% C 5 i% J8 m4 u5 w1 K$ J* G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) q, o+ g$ B, t! R% B/ `
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 m) P/ p h' _* E4 o VariantInit(&requestVariant[0]); 7 G# s4 C! C4 y requestVariant[0].vt = VT_BSTR;( R6 ~- r! V8 a7 f+ f( I' N
requestVariant[0].bstrVal = itemStr;9 x9 Q3 A' L4 T
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topicStr = SysAllocString((WCHAR *) L"system");! F) ^! M8 l- U, }
VariantInit(&requestVariant[1]); 0 M F% ~5 n2 i
requestVariant[1].vt = VT_BSTR; 5 U9 |+ k8 t. T s5 E* {. I requestVariant[1].bstrVal = topicStr;/ c8 ]- A$ K" Y' e% x, H
( C& {) K, v$ o! h- R' v/ {// Set the DISPPARAMS structure that holds the variant. # r) I, r& t, E3 F 2 C4 M7 y- D/ {% e; l/ U) T, _ dp2.rgvarg = requestVariant;8 ^$ ~2 j- l2 t
dp2.cArgs = 2; : |# \+ H/ h" w0 E5 A0 L dp2.rgdispidNamedArgs = NULL;0 @, c2 |6 J8 w! D* i
dp2.cNamedArgs = 0; 4 \7 z" P1 Q; A6 z$ J7 z* j # [; u* B8 Z; C0 P var.vt = VT_EMPTY; ) _ {# J: {' y6 v, g( d: z& E- [# t0 r4 J4 [( c
// Call IDispatch::Invoke() 9 N' \, a" u9 S% T# c9 G Y. V: n0 C8 H
hr = m_pDisp->Invoke(0 ?4 t2 l# F b0 K2 [! ^" b
requestID,1 H9 ?5 l; W" p# l# s7 T
IID_NULL,+ ^# s7 w6 B2 k
LOCALE_SYSTEM_DEFAULT,3 t9 T# u( l& c+ }' Z8 A. Y
DISPATCH_METHOD,0 |7 w. d* B% x: i
&dp2, 6 ~4 v8 P- Q" C' A; D2 C &var, 5 X+ V4 Y5 D9 P% t: a# A &ei,/ J1 U9 F7 ^" p+ z
&uiErr); ) l4 z1 g/ E$ C, } : P2 L% W4 X/ s* _' M SysFreeString(topicStr);7 V5 Z" ~4 v- |) z" O! j
SysFreeString(itemStr);1 t$ l" e0 ~1 e5 b. B4 T
请问该程序是获得extend里面的哪个值? % Y$ b" l0 y: H! F" [* H9 }9 Y$ l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????