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：7 c& N& @; i2 l
Name = (WCHAR *) L"Poke";$ G% m5 j' z& x# U k
$ ^+ W$ }! y6 ]0 J hr = m_pDisp->GetIDsOfNames (1 ~! w5 r& g4 X/ s
IID_NULL, // reserved ! R2 N. t8 ~ p& i2 Z &Name, // Array of names to get IDs for 6 g7 w7 z+ z0 A; J* k8 \ 1, // # of names in the array. G2 y. L, z0 d1 ]
LOCALE_SYSTEM_DEFAULT, // System locale ) a r$ g: M% j) T: |+ ]( U- E &pokeID); // Array of IDs to fill on output 2 n, k9 k! P8 K) e7 B ) a9 u! r/ u: \( T1 b. M
if (hr) 4 ?: `' `. ]5 X! I. f {' Z6 _+ ]8 h7 S% L! g' O9 P
MessageBox ("Get Poke Unsuccessful");+ Z! B: y, g3 k0 H- l/ {/ G
return;$ S6 v' t- J4 h1 k, W# g2 V, `% U
} . ^5 l. d7 T. K2 x Q! H7 K; o' X0 O
/**************************传递数据给extend**************************************/2 o `) S2 R" _7 I3 H% o/ k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 |, G6 D% F6 X7 `* ]) V! Y
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valueStr = SysAllocString((WCHAR *) L"1232"); - ^, l8 N1 ]/ @; Z2 ^ VariantInit(&pokeVariant[0]); / |1 j$ W+ J* y
pokeVariant[0].vt = VT_BSTR; A: o8 }. @* U9 c
pokeVariant[0].bstrVal = valueStr;' [" y: G- ?" p0 U8 }- l
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . o% h& |: b7 {$ j9 W @ VariantInit(&pokeVariant[1]); ! E+ {- h5 h# F- v( n* E pokeVariant[1].vt = VT_BSTR;- E4 o& E3 u$ H
pokeVariant[1].bstrVal = itemStr; T4 `% Y" w$ y6 c d( T* P& x) G* z topicStr = SysAllocString((WCHAR *) L"system"); - T* _- u! }8 E+ X6 w2 S7 o VariantInit(&pokeVariant[2]); 4 g+ L# G9 u8 J/ V- l! v6 s, l
pokeVariant[2].vt = VT_BSTR; W2 T$ \8 d9 T* J2 _6 B
pokeVariant[2].bstrVal = topicStr;& ^: L7 q9 a) A& V3 a! m
. p% t6 O6 O( `// Set the DISPPARAMS structure that holds the variant.8 Z5 j3 m m" T. d9 b
5 v* ~- M1 A% N dp.rgvarg = pokeVariant;7 L" N1 ]* c+ B% G7 X' `3 U, w2 ]
dp.cArgs = 3; % A" l5 R( k& L3 @6 i( I6 E7 B6 P dp.rgdispidNamedArgs = NULL;' o: X. F" J' R7 _% t& R) r4 m% }5 j
dp.cNamedArgs = 0; . _9 c0 ?7 k* N# p1 l' o9 C9 I" L % @5 h: J7 ?% m4 z% p1 F" [) \// Call IDispatch::Invoke() 6 p) [2 h% C# I8 D 0 l6 s# X2 U/ B0 J. v6 |: g hr = m_pDisp->Invoke( * p6 Q, S4 U9 t: j: W, ~2 J$ X* w pokeID,$ a& E! I1 N h! H M
IID_NULL,! y, N# W' s3 |1 A
LOCALE_SYSTEM_DEFAULT, 9 K% {! m, i$ Z( S0 t DISPATCH_METHOD, 8 l- q$ R0 l% o &dp," A) L# L9 k9 b
NULL, , w: H& x- f3 O$ X! s- Y &ei, 1 T8 u( T# S8 \ &uiErr); 4 y2 @- `- A- c1 p0 @2 v$ f# w6 s' K e+ ~+ n$ H: [
SysFreeString(topicStr); 2 s! M6 l/ `9 y# W7 q8 K7 r SysFreeString(itemStr);( J( C$ ^* a* y1 E# o; U
SysFreeString(valueStr); 0 c6 S1 b! ~+ A* T& B" y; m3 e* t9 n
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 J1 D4 ?$ c1 j3 n9 l) [5 q
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？？？？/ I p3 T4 `7 @! Q [
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2.这是request的程序! ?# `1 {( c" m& y. i
// Request a value from Extend |5 ]3 J' D( x! i+ }// w$ C' u6 M- O0 c
// Initialize the variant that will hold the BSTR. Set the variant's : z" V& T( g$ Q9 c; P) O% t; p// type flag to indicate the fact that this variant holds a BSTR. Place the$ m; z+ y5 z& X! h7 ]7 b: I
// BSTR into the variant structure. ' p/ _' b. Z5 B0 ?1 N" X' f% H7 {) f9 x. d4 r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 D: t! o& k5 j9 l7 U( b$ v9 J1 Y0 R & V/ T: S6 D( g; z1 I- S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 E3 @, @1 b# B5 W+ r, B# @% E' G
VariantInit(&requestVariant[0]); ) o' E, O/ k/ ~# {8 [$ _, ~/ c; t
requestVariant[0].vt = VT_BSTR; ^' ?3 U5 j# h% v7 X: }
requestVariant[0].bstrVal = itemStr;7 U' ]1 T. r, J' ?7 k M1 o
" \7 ^4 `" e# V8 d7 x topicStr = SysAllocString((WCHAR *) L"system"); ! s0 h9 B$ ]9 u: x VariantInit(&requestVariant[1]); , @0 D0 V. h0 l3 g; c, [6 Q requestVariant[1].vt = VT_BSTR; 9 W) [& O. X& A! z requestVariant[1].bstrVal = topicStr; % g+ `3 I7 r0 ^) M# {4 O + {: H. V/ D* ^- ~1 T// Set the DISPPARAMS structure that holds the variant.6 f- P# _' K6 J8 o
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dp2.rgvarg = requestVariant; e# F8 R" g$ { F dp2.cArgs = 2; # N6 K! s1 X7 o dp2.rgdispidNamedArgs = NULL;6 `3 n9 p9 F' @, |$ F* y. X
dp2.cNamedArgs = 0;; z U P) P/ Y: A, g1 M) A. r
' z" I( K( R3 f0 t var.vt = VT_EMPTY; 4 }4 q5 f+ g% u' s$ [8 O$ z. f. Z; [3 S6 i3 d" {
// Call IDispatch::Invoke()+ L3 j1 _% v7 h8 }2 ?
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hr = m_pDisp->Invoke( 9 x& m: ~1 E" m% f @; X1 { requestID, + [7 B1 `7 b9 L: \ IID_NULL,) h9 X$ e0 l4 c6 c* J- d$ x+ B
LOCALE_SYSTEM_DEFAULT, # I: D0 E7 q) i: b3 w% O DISPATCH_METHOD, * r/ ? i+ r e &dp2, & i0 p- m# k. b* a% H7 R. x &var,0 x1 B* l2 M, K2 u
&ei, & @3 z+ o# c# h; R6 {( `. J &uiErr); 0 }+ m0 Z5 b/ k& |; K $ ?4 b- Z, c* O. l9 M3 x' w2 M) N SysFreeString(topicStr); ! J: \- S, `& N& d SysFreeString(itemStr);8 `* a" L( B! ^2 z7 P. T0 R5 f
请问该程序是获得extend里面的哪个值？ 2 W$ D' }! w7 w' J4 J2 M& _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
