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: ( q* }5 J0 u/ H; q4 f3 IName = (WCHAR *) L"Poke"; 5 n+ J4 M/ v6 Q . [: L* w$ O/ w7 }" L* `- e2 M2 b4 b hr = m_pDisp->GetIDsOfNames ( & O2 p7 [4 j0 \8 _& s9 N( o: s IID_NULL, // reserved# g$ e o+ ~ m/ ~) d
&Name, // Array of names to get IDs for! t3 a! p {. J; G, Y1 `
1, // # of names in the array" Y6 u7 v: D7 S
LOCALE_SYSTEM_DEFAULT, // System locale) s9 |; p* P5 b( X k6 J- `1 u
&pokeID); // Array of IDs to fill on output 7 m2 A( j. @" x" I) r, s( ? " \5 b2 N* u2 F* ]2 {
if (hr)9 m" c7 Y0 v; {7 l( h
{0 n- a$ g* C! V# w/ l
MessageBox ("Get Poke Unsuccessful");1 G: w8 J# v: G- Z
return; 9 t# S" x) Q3 O. ^7 d }: g- v! C* v& S4 X+ @5 T3 v
5 h5 F+ X l0 |% E
/**************************传递数据给extend**************************************// k* a% |9 ~9 o) D- Z3 q# Z, U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 Q5 a+ a+ b( P, Y/ |* s / q$ Y6 u& ^* J! Z4 S5 @# o" h
valueStr = SysAllocString((WCHAR *) L"1232");# H8 `- l; H! t' x# v& P
VariantInit(&pokeVariant[0]); + t m" N" T3 y5 I6 F3 ?9 I! S pokeVariant[0].vt = VT_BSTR;5 x! V6 d# j8 j, {4 ?+ \
pokeVariant[0].bstrVal = valueStr;" I, g0 @/ q" u" ?' r
+ _7 E# @5 j) i) @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( D/ ^, E) S g; f4 p1 Q VariantInit(&pokeVariant[1]); $ \( T: J1 z$ [+ F+ y
pokeVariant[1].vt = VT_BSTR;) y) ~3 W+ V- v- k8 C
pokeVariant[1].bstrVal = itemStr; % h8 C2 W I% G( }6 p7 f6 k: z+ l+ b$ B
topicStr = SysAllocString((WCHAR *) L"system");7 U# w, j0 y& X- u# K* B5 T
VariantInit(&pokeVariant[2]); - r& J# J H M" T) N+ l
pokeVariant[2].vt = VT_BSTR; ' i1 i6 B% N$ m" A( \0 D pokeVariant[2].bstrVal = topicStr; ( |0 h: j2 T9 S/ i: t) @4 O3 A. I" P+ ?6 E3 X1 z1 ^
// Set the DISPPARAMS structure that holds the variant." M( t* H! |" o# X1 o' J" e
( p, M0 e" Z8 q* V1 P* q( k1 N7 i5 u dp.rgvarg = pokeVariant;' m5 P! r( ^5 N$ T
dp.cArgs = 3; % I; ~, ^6 B1 E dp.rgdispidNamedArgs = NULL;% O( n$ m) L/ Y6 K
dp.cNamedArgs = 0;& o4 T" `/ g& i
5 h% W3 Q4 d9 x. h" {# G
// Call IDispatch::Invoke(). k6 u, L* {6 Q+ \. Z3 F) d
& d2 F+ @3 v2 J4 A" J hr = m_pDisp->Invoke( ' L" ^/ ^6 Q$ F' t6 a& g pokeID,7 A7 p! A% F9 R) m' q+ |$ F
IID_NULL, 6 u5 x, D* Q; W4 o7 U LOCALE_SYSTEM_DEFAULT,4 [% R0 k: n7 T3 p1 L- T
DISPATCH_METHOD, 4 ^ u/ t5 k P$ V &dp, 0 a6 C- ~4 N/ A0 w O; a NULL,% x" m0 K/ x5 C7 F. X" J$ i
&ei, L- q* \4 x/ U, Z2 ^
&uiErr); - E" w! B M1 T/ X' G/ W- J9 c1 D) }9 u# V1 G T) M! W+ |
SysFreeString(topicStr); , [1 p& \- N' T9 y% I, [" }0 Q G SysFreeString(itemStr);# W; E) m, @5 m/ i/ U$ @; M
SysFreeString(valueStr);; y% o! R3 b7 ~8 \3 h& S
' a" d" t2 \; Q, t& e6 [
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???8 P6 X7 T; ?6 [8 j
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????* Z }8 K" `! W
& N; Q) |- ?- ~$ V# u' k& A1 p2 J7 \2 w' E' a
2.这是request的程序" R6 H9 M; |# K o3 T
// Request a value from Extend & {0 @+ N8 G. ]2 ^& v// 7 P2 P+ M9 H/ A. G3 g1 W. J// Initialize the variant that will hold the BSTR. Set the variant's 6 W/ N9 e: ?* [# E2 a3 e% o5 J4 D// type flag to indicate the fact that this variant holds a BSTR. Place the ! X6 ?8 Z* K P" a# V* g+ X* q// BSTR into the variant structure., r, v2 {0 [$ v$ E8 G! i
4 S/ k4 D1 H6 k4 d2 \9 x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' r) V# s" x: _: s. J' s
0 e& h. ?$ O! J7 F3 C8 j9 \8 ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 o: G8 c- a0 h' Z- V$ o" u VariantInit(&requestVariant[0]); * b' B8 Z2 B' }+ T$ S, q
requestVariant[0].vt = VT_BSTR; 4 c+ ]! z: Y3 R# v+ m0 f requestVariant[0].bstrVal = itemStr;, J& p! `1 z6 Q9 I* W0 ]
% t: ]; p3 j/ k- @
topicStr = SysAllocString((WCHAR *) L"system");, J" b6 `) M+ n: J: D
VariantInit(&requestVariant[1]); ( a) v5 s K3 D6 K5 I
requestVariant[1].vt = VT_BSTR;; \: R4 R9 n) B, k, y$ D
requestVariant[1].bstrVal = topicStr; % B, K- a4 M/ _1 u9 O9 N0 r* a0 u7 b5 ^9 |* h
// Set the DISPPARAMS structure that holds the variant., Y8 d2 V/ c( h6 v& `0 N( f1 Q3 i
. |- M" _" R3 p
dp2.rgvarg = requestVariant;8 h6 o5 u: S% h( T
dp2.cArgs = 2; 5 a% U7 ~$ z- v dp2.rgdispidNamedArgs = NULL;( R. ?7 j2 h0 t+ Z: |; W
dp2.cNamedArgs = 0;) [+ Q X; w& ^4 U
% T7 X9 d8 d d" t! O8 z( ^) R$ I var.vt = VT_EMPTY; + F: i& j3 m. @6 s \9 J0 ~0 \4 t+ A9 U9 v5 Q: w5 ? N8 N
// Call IDispatch::Invoke(). F( b5 z2 |4 s: {( B
7 M) }8 |8 c3 P: @6 n: O
hr = m_pDisp->Invoke( % L& `3 ]; I! D& _, h+ e requestID, 0 }- L1 `+ H' H IID_NULL, . J' |; C M9 @5 d LOCALE_SYSTEM_DEFAULT,+ l0 D( L- u- v& f) o
DISPATCH_METHOD,1 p$ \! {1 E5 P: m8 z5 }: l+ _+ c3 b9 E
&dp2,2 J8 c1 M( X# H# W5 C/ \: G6 ]
&var," L3 u& C1 i3 U# U K G: Y6 a0 C
&ei, ) r: [( A+ v% F( l &uiErr); 1 m% p% H, Z: B9 `, I2 I. y! N $ s, V I/ T6 | SysFreeString(topicStr); : W$ x0 ]/ W+ ~% @" u SysFreeString(itemStr); % s* F" M3 f) h8 g" b请问该程序是获得extend里面的哪个值? # L2 |2 Q6 M* I4 G, m; c5 n) v5 a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????