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 I/ l9 c( g" U3 c0 T u* y( UName = (WCHAR *) L"Poke"; # I; t/ [, R3 @# P 2 k1 s- `% j' p( J3 N# L& X8 n' H3 n hr = m_pDisp->GetIDsOfNames (# a; o& T$ _/ L W
IID_NULL, // reserved( |% u1 A# m& P% B0 X1 \
&Name, // Array of names to get IDs for ! r$ y! K( O6 n' D 1, // # of names in the array( K( e# S3 \6 h. F! K
LOCALE_SYSTEM_DEFAULT, // System locale6 w( z3 R- T: x. z/ }6 h( T
&pokeID); // Array of IDs to fill on output k8 x- S/ z, U' T$ o: O / C- A- O8 \) H/ k h N if (hr) 0 X( T: L' \( \ { 1 x) i1 D5 E8 |) N MessageBox ("Get Poke Unsuccessful");" Y8 }# Y9 u7 I$ I$ {
return;+ H" e( q$ i$ f
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# I0 } x) K$ }6 @8 J) I, N
/**************************传递数据给extend**************************************/& e( R( E- u7 [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / S& L4 }) q0 d9 V3 x 1 _+ U4 o+ [/ I. v
valueStr = SysAllocString((WCHAR *) L"1232");7 [& j9 x' N# v3 m# Q: r: w( X
VariantInit(&pokeVariant[0]); $ i$ k& I6 q1 M( d
pokeVariant[0].vt = VT_BSTR; + j: T- u+ f4 A! Q- n pokeVariant[0].bstrVal = valueStr; ; _6 l! W1 B# @4 X* m+ ?9 ~% L 9 W/ b ?2 e8 |4 [6 C4 r1 K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : Y& F% H4 j6 e* `9 T1 g VariantInit(&pokeVariant[1]); " G" m% H/ k R$ p! V* I
pokeVariant[1].vt = VT_BSTR; . W5 l. n8 ~1 l( n pokeVariant[1].bstrVal = itemStr;) `0 v- u3 K7 v% V( ^8 t4 B
) n$ ]: P7 s0 t. h. ?6 l- ^ topicStr = SysAllocString((WCHAR *) L"system");; b; v! o; z7 X. }. _
VariantInit(&pokeVariant[2]); # ~2 F& } S- I( l3 J7 U
pokeVariant[2].vt = VT_BSTR; : R. C1 J5 d" i( K' i pokeVariant[2].bstrVal = topicStr; 5 k# H5 R: z8 D+ g o3 o7 H# y) w* {# Y- h% Z! ` Q2 C
// Set the DISPPARAMS structure that holds the variant.% N- D2 D, G1 C6 u. E
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dp.rgvarg = pokeVariant; # i5 H6 k, ]4 i5 c' } dp.cArgs = 3; : _4 v: P: i3 a1 Q2 Q dp.rgdispidNamedArgs = NULL;: q+ g" o* v) x1 E. H4 R8 _: a
dp.cNamedArgs = 0;2 l8 W* [/ ]5 U; g/ C
( o) Q3 a2 i8 s. r( W3 s# J// Call IDispatch::Invoke() & ~* [1 g& z* o* k $ I' V( x7 a1 K" P hr = m_pDisp->Invoke( : j5 p0 u( C4 [) ~ pokeID,# h9 ^# N: S$ S& _0 H+ {5 o/ K
IID_NULL, 9 H) q3 n- g) Z1 r( {: \9 r. M LOCALE_SYSTEM_DEFAULT, 6 a- O; |9 Q5 p DISPATCH_METHOD, # j" V: f. ]1 T &dp,6 y( k/ [! ]* G/ W+ x
NULL, + U7 k/ S3 h. L; |6 H( a0 v &ei, 7 `: a) b& U+ P* g( [" N &uiErr); + S; q) e2 T' n, s: L3 i# s% h# @% R3 Z$ H) R; k$ d
SysFreeString(topicStr);9 m+ [$ ?( d$ l! W1 Q
SysFreeString(itemStr); $ l- Y2 { [0 Y- P* }6 n4 S# H SysFreeString(valueStr); 5 j2 x8 l z5 o Q& x2 x2 H3 \; c- Z! `) T" ^
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??? & @- @, z+ |2 ?" ~+ 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????- l' z4 {) z; ?3 l! l( p
2 ]5 \3 R. d) e & P8 B$ m# `, ~0 ?2.这是request的程序% p; [$ M s3 f+ l
// Request a value from Extend: C' I& s0 Z* U7 x( X/ h; f D; F
// + z7 l; M/ G# \; O8 L// Initialize the variant that will hold the BSTR. Set the variant's ( F0 [+ l9 W; R. f a// type flag to indicate the fact that this variant holds a BSTR. Place the) C9 z% o0 L4 k$ F0 C% X6 j3 g
// BSTR into the variant structure. ; `: t5 Z- `! E, m: }) e( B 8 z- [- s, t. n) x: V requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% Z2 J" h# J/ u0 l) ]" T
- H; l5 v$ P1 U0 V+ z3 } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 z2 U- Y9 p" O2 w! g
VariantInit(&requestVariant[0]); 5 R7 O1 p( f0 W3 o* r7 o* i/ M requestVariant[0].vt = VT_BSTR; 4 I# C! V2 p) \8 m" K% y8 x requestVariant[0].bstrVal = itemStr; ( U4 v: W5 S- }- ]& b; q4 h ; n* C0 r3 K) c, D5 M1 G( T topicStr = SysAllocString((WCHAR *) L"system"); : g2 A" z9 X8 a$ s# u# A. ? VariantInit(&requestVariant[1]); ; g1 D, A) @) |+ N
requestVariant[1].vt = VT_BSTR;3 K/ A0 w) ^& a R( C( B
requestVariant[1].bstrVal = topicStr; . r2 K& a+ T" y$ z* ^8 k ; N; k. r+ u* @- t2 M/ B E2 J// Set the DISPPARAMS structure that holds the variant. 3 Q. _$ ?! a& c: ~8 Z' w , {- e- f. Z$ E% M- O dp2.rgvarg = requestVariant;( p. z9 R* F' {* ^: A/ [# X
dp2.cArgs = 2; 1 ~6 V, z0 X1 x8 z: q) } dp2.rgdispidNamedArgs = NULL; + h4 e1 G8 x# @2 Z dp2.cNamedArgs = 0;) d' n: ]$ {! i+ [4 H, d9 J
+ ^# W" r, `8 ~% c8 H* q6 g var.vt = VT_EMPTY; # |1 p! q7 \+ |$ k% f v8 N( Q+ _( c2 P- |: y! r& ~
// Call IDispatch::Invoke()6 `$ [1 P3 i9 M3 z; `/ D
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hr = m_pDisp->Invoke(7 h9 f4 h9 ]2 q
requestID,% y* ]" {9 s7 R: I
IID_NULL, , X$ l9 O6 V1 O/ @6 @ p LOCALE_SYSTEM_DEFAULT,0 w# j/ c, G- {. u! m ]
DISPATCH_METHOD,% q2 f# C9 w: l8 @
&dp2,% l/ m5 ~0 @. |" }- l
&var,& M/ { x, L1 B
&ei,3 A( w% W" @& Y. k. [
&uiErr);7 V9 W1 [' G- p9 f- l
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SysFreeString(topicStr);; R( Q7 P8 ?8 H, N4 _) f
SysFreeString(itemStr); - ~! J- a. X0 z- D3 i5 S请问该程序是获得extend里面的哪个值?6 ]9 u0 r3 O* I0 C
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????