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： 0 o. w8 H/ q4 f$ \Name = (WCHAR *) L"Poke"; % l0 Z% W- `- q) W & e& Z0 R ]6 A hr = m_pDisp->GetIDsOfNames ( - O* A" e& H2 m1 b3 j8 J/ e IID_NULL, // reserved $ q( F2 B) i1 x9 W. q" [; N# L k &Name, // Array of names to get IDs for ! _5 u( ]9 r* u! T, J) @6 J 1, // # of names in the array2 ~# e2 e+ ~" G: d
LOCALE_SYSTEM_DEFAULT, // System locale 6 r" G0 x) A2 j4 V+ Z: { &pokeID); // Array of IDs to fill on output) I* L' S# l- f* A% B$ L v O
- L0 I8 N& q, ]9 j! A if (hr) 5 O$ w; F- G, L& B9 M9 ` {2 B6 q5 Q. p( V" @& v3 G
MessageBox ("Get Poke Unsuccessful"); , k4 _; `5 A' l! u5 { return; Z: G+ n( K' {6 [8 a* T
} 8 N- m/ q- b" B$ ~& [ : l8 r. F3 b L2 W9 F/**************************传递数据给extend**************************************/4 m! Y7 o$ m" O" Q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " G0 h h1 m; F- B: I s7 G1 j 3 d5 S( U- T$ F' |) y V: W7 C6 V; _
valueStr = SysAllocString((WCHAR *) L"1232");( [, _3 `, x# ~! h
VariantInit(&pokeVariant[0]); 2 l5 O- H9 `1 `2 U1 A2 l. f0 S/ {( k i6 A
pokeVariant[0].vt = VT_BSTR; * ~9 p W# a8 i8 o/ o4 O pokeVariant[0].bstrVal = valueStr;. W- \) Y5 i K4 P
: B7 v7 ^& C8 ~. Y3 g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 @4 S+ e- `2 O: b8 l k VariantInit(&pokeVariant[1]); % C$ E' C( ]1 P7 z6 ?/ O- W
pokeVariant[1].vt = VT_BSTR; / c" B2 {& p' { pokeVariant[1].bstrVal = itemStr; . {$ R, G2 E! ~+ X3 P + Y% o5 r7 A$ g: l# A6 C, e topicStr = SysAllocString((WCHAR *) L"system"); 7 ], i& h/ w1 `3 u2 [1 y& V VariantInit(&pokeVariant[2]); 0 l- u0 w7 R! X
pokeVariant[2].vt = VT_BSTR; ( t9 f. H+ x$ A pokeVariant[2].bstrVal = topicStr;# r; L3 b6 D b2 G
5 h0 d7 G4 U# n/ r9 r7 [// Set the DISPPARAMS structure that holds the variant.5 \+ F% z5 u$ f) v2 k
9 W, b9 e ]) j4 O dp.rgvarg = pokeVariant;5 C$ ~2 v" V6 f1 u: K3 C7 N* ]7 U- C
dp.cArgs = 3;( i; f) T/ b5 F: Z! @- Z
dp.rgdispidNamedArgs = NULL; % q: A) ~4 V' a8 X# ~# q dp.cNamedArgs = 0;& L$ J* k L7 N- ?% H( X
6 L8 }4 B% W* m8 Y# Y1 f// Call IDispatch::Invoke()9 r* k/ b A* v" i! L2 f, {
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hr = m_pDisp->Invoke(% ], c' f C0 y
pokeID, 1 R0 O( c5 u$ I: r1 Z, Q/ W1 W IID_NULL, 1 O, Y/ \6 S0 R! R, [ LOCALE_SYSTEM_DEFAULT,# ]8 @) L" @. S }- ~
DISPATCH_METHOD,( F1 O3 O& w3 s& g. |7 R
&dp,' m- y( X$ r6 P Y* }; A# f7 P
NULL, " ?4 |) b4 j; i& t8 b8 Y &ei,+ z0 U, N$ w2 U3 U* Z4 t; x
&uiErr); " h0 r1 Y' w+ R# Q : F3 k4 I8 X# k9 t SysFreeString(topicStr); 1 ]3 |% u4 `" y. @* {0 \5 ~ SysFreeString(itemStr);0 _; m, o* M2 o$ I+ O
SysFreeString(valueStr);8 @( v. c ?( ~' L, u* e# C7 o! y# A
/ W* Q. ~3 k! M
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？？？ . m6 j5 y* o0 N2 A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？？？？; H/ O; @2 ]5 u" Y8 P p& r
1 D" c6 j& S4 n0 c- { 5 |0 T) }; Q- P9 C. p3 T( }2.这是request的程序- p% ?9 b* Y; W7 z. E. r4 f) H" N
// Request a value from Extend" F' j) q$ Z4 M2 k# `; h( |+ B
//: L/ z3 l7 U8 ?$ C# N" F
// Initialize the variant that will hold the BSTR. Set the variant's0 l7 A1 f: W1 Q, j
// type flag to indicate the fact that this variant holds a BSTR. Place the% D8 c; c& D( X! }9 y7 [: E
// BSTR into the variant structure. 9 @6 l& j. [% _5 G# @( L3 Z& O$ l( k5 u) b `
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. o; W3 ~8 J/ t- m! g. A% \
" M& e1 y' a( s2 A: b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , L# {6 U0 I8 g# ] VariantInit(&requestVariant[0]); $ y/ g/ x0 _# P" g5 R requestVariant[0].vt = VT_BSTR;- Y, O. l( [/ }0 @! s
requestVariant[0].bstrVal = itemStr;0 A3 @- t! ~; D
* D( a% O! T5 H4 Y# R
topicStr = SysAllocString((WCHAR *) L"system"); ! g9 \5 g: x; j; s/ u$ } VariantInit(&requestVariant[1]); ' O. T6 l1 Z+ w5 y+ e3 q7 i
requestVariant[1].vt = VT_BSTR; ; u* h- S. E6 Q" F/ p1 k requestVariant[1].bstrVal = topicStr;( n/ k# m' r2 \4 ?# k: @" C p
* j/ @/ f' ~7 J0 s* s5 ]
// Set the DISPPARAMS structure that holds the variant. ! ~' E% W5 i; A. P; [) `, l+ g; Z+ y5 E. g3 }- \& W
dp2.rgvarg = requestVariant; A; O1 G" n& N dp2.cArgs = 2;. A9 f& W6 ^" L( |/ p" |. n
dp2.rgdispidNamedArgs = NULL; ! v3 ]5 B8 K$ ]2 I' a- {7 D dp2.cNamedArgs = 0; ! ?! J4 a5 ~/ d, ]$ G% o $ t) ]; e$ c9 h" s( I3 s9 Y var.vt = VT_EMPTY; / G7 _# F8 c9 e: t# D' J; B# t 1 E6 ]) Z7 s, u8 I6 F3 E" ?// Call IDispatch::Invoke() ( W% O9 K% V' w C4 m" c- U8 J( }7 A$ V( ?8 [- Z; z+ L) t& v ?
hr = m_pDisp->Invoke(! G; Z, k" ]8 a; A+ u
requestID,% ?% g! @6 Z/ y
IID_NULL, ( q/ @& q5 Y3 S1 N. S! w* h' \! O LOCALE_SYSTEM_DEFAULT," n {% ]& o" O. _9 c
DISPATCH_METHOD, 7 r0 B0 C: @' l4 q &dp2, 8 C, h, s( k7 g8 C4 ~ &var,+ u% q. y: c+ Y% L7 k& D2 \; }+ W
&ei, 9 U2 a5 L: V7 E7 A2 J- a, o" a &uiErr);7 s9 F& {4 ]$ E1 q% M$ h7 ]* R
+ ?4 m) \1 h: |
SysFreeString(topicStr);+ I4 M' s k, T" X6 s$ W
SysFreeString(itemStr); & |; `- D/ N* M1 ?/ V+ }1 K. i" O# ]请问该程序是获得extend里面的哪个值？ . t1 s& I% s6 H* a- k( H; z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？？？？
发表于 2008-11-25 19:37:03
