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： ' z) ^- ~; r8 k9 h5 k0 B7 sName = (WCHAR *) L"Poke"; 1 X" `" Z+ `6 q% s: |( _- Z: z- { : \9 x% O# {6 \ p) _
hr = m_pDisp->GetIDsOfNames (1 M, g( y1 ~5 F$ U8 ?* g' V
IID_NULL, // reserved ' }. {2 o+ e; J" A/ k7 d$ e, { &Name, // Array of names to get IDs for + ^. c- O/ \( b: x+ j6 j 1, // # of names in the array , @* \0 G' T, Q' l9 Z LOCALE_SYSTEM_DEFAULT, // System locale7 y" o1 z/ j% q f* M
&pokeID); // Array of IDs to fill on output 3 J( {! n2 P5 a! a2 \8 l 2 W& K1 G% j$ J$ Q if (hr)% h3 K2 ~; B1 d9 u* P M2 A
{ 6 f4 q) V% E8 c; u' j: | E MessageBox ("Get Poke Unsuccessful"); 0 B9 C2 a" c8 v return; 5 X4 P, ^- Q% h/ X }& A0 V8 i# K) `
" ?1 h$ Z" N. g1 t2 _) G# b/**************************传递数据给extend**************************************/ & w1 v+ `) o' p# e# S- C7 f: D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) T9 U9 Q6 U: M+ X7 r! D+ ~ ! T! r1 e% z- f' }" ^ valueStr = SysAllocString((WCHAR *) L"1232"); ( m( L6 ]- q3 T9 V8 \; z VariantInit(&pokeVariant[0]); # j/ N2 M3 i' T" @- V. S& M, I" U
pokeVariant[0].vt = VT_BSTR; 5 |) y+ g1 K7 {+ |- F4 O pokeVariant[0].bstrVal = valueStr; + y* H$ D9 @2 |$ v! o/ m: S) E$ I ) Y: ?2 z) b# A1 z; Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, X, d$ Z- W. a# k
VariantInit(&pokeVariant[1]); + s8 T x- W( P+ ]$ ?1 ^ |/ Q, a pokeVariant[1].vt = VT_BSTR;3 I' L R# A$ q
pokeVariant[1].bstrVal = itemStr;' R% M# J! X6 M
+ H) o2 p7 y3 Q# g" k: ?& M- X
topicStr = SysAllocString((WCHAR *) L"system"); 1 E9 {6 z& q7 D7 h7 T# B VariantInit(&pokeVariant[2]); " w2 E- N) `$ ~: k l
pokeVariant[2].vt = VT_BSTR; 9 F0 A5 M( H; m! s pokeVariant[2].bstrVal = topicStr;2 z% J a- m H/ z1 [
9 _7 q% T$ x6 W// Set the DISPPARAMS structure that holds the variant.9 M }2 @% [# V
. `! I* D7 ?) x. w: [' N4 V dp.rgvarg = pokeVariant; + O9 u2 K# B1 s; T3 U' p, f dp.cArgs = 3;: k( {; I1 a5 q& G0 e
dp.rgdispidNamedArgs = NULL; 1 w8 J; I, @' Z& j! l dp.cNamedArgs = 0; 9 P! P( f2 E- B " T1 ~& k0 M* A% x' i) W- K6 V// Call IDispatch::Invoke()1 \8 q, o: }' C2 m+ L- d, i* l4 a1 T
6 Q( U& g3 d! r& Q hr = m_pDisp->Invoke( & h( P1 G$ O8 Z pokeID,- t6 G* ^% ~* _6 W" \
IID_NULL, 1 L# ^- |0 |! J6 w$ A3 k LOCALE_SYSTEM_DEFAULT," E3 m& r) e% w9 |0 g) G
DISPATCH_METHOD,- |# b; B, @# r) a
&dp, 1 z! D% _: }0 H NULL,4 I8 H0 s$ \* l0 o
&ei, 4 D1 r3 N4 @* j+ d5 a' M &uiErr); . V( H( r( T& F" _# D3 q7 l$ N# a& \. [# I( j. L
SysFreeString(topicStr);; P6 \$ j4 n+ M: {. }) P* q
SysFreeString(itemStr); & T# J. [) Q5 H& t: H% h& U SysFreeString(valueStr); , l* z3 V0 w! }0 ~5 k/ j & P2 ?* A% V5 v& U+ b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？？？# B3 N# _: p. Z) {: k
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？？？？$ g/ |2 _: V& U" F
' J; h" c! W, ^! Z9 B4 y! n" L9 T+ Y# v- H3 _/ \8 v( H" C6 u
2.这是request的程序8 l( g# ?$ ]" R! Z" i
// Request a value from Extend 3 W$ T6 @) u9 ? r, k2 s# ?// 0 ^( M2 }! W5 K* i# k$ z8 J+ D7 `/ V6 U// Initialize the variant that will hold the BSTR. Set the variant's * A ]+ Q/ ^& \" m// type flag to indicate the fact that this variant holds a BSTR. Place the3 P# o: T1 n/ h" c' T$ j% K
// BSTR into the variant structure. N5 P! n) p: L8 u8 c
: e& Z0 {- s2 W2 r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); S, D( }+ D3 _$ @& e $ {" }/ ? o! D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , V/ [% z, {( K8 }/ U& f- s/ j VariantInit(&requestVariant[0]); : z! Y: T$ }8 R; T/ c: M requestVariant[0].vt = VT_BSTR;- P" ^$ Q5 u+ G l$ @" |* `4 q
requestVariant[0].bstrVal = itemStr; ; F4 G( @: k a & c1 y2 c' c" T topicStr = SysAllocString((WCHAR *) L"system"); 4 Q; @+ W7 A) m+ l VariantInit(&requestVariant[1]); " X$ Z* K# E ]8 U/ ? requestVariant[1].vt = VT_BSTR;, @- v5 W" ?7 |) Z, a) ]/ R& l- k
requestVariant[1].bstrVal = topicStr;9 r9 e7 D2 @. S+ j1 `
! Q' b# {& j* s
// Set the DISPPARAMS structure that holds the variant.# L" G1 E8 _( |# W$ w7 m; L
发表于 2008-11-25 19:37:03
