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: ' B7 B. W, Z3 J. tName = (WCHAR *) L"Poke"; ; v1 V/ t) m9 K+ Q: ?( M4 `7 d " @; b5 o7 F" F
hr = m_pDisp->GetIDsOfNames ( , F0 O3 H2 O; \( F" b% [% b4 s# u" b IID_NULL, // reserved* [, `2 Z. `9 q" q- R
&Name, // Array of names to get IDs for2 q% i8 D$ c; T9 o- y
1, // # of names in the array * \; G0 N" v% i LOCALE_SYSTEM_DEFAULT, // System locale % Z4 f: A% ~& t8 t+ k9 O: Y' } &pokeID); // Array of IDs to fill on output 0 u& J4 {" ]& _1 P! ~ 5 C) t9 {( v( w2 d) ~
if (hr)& n( Y0 X& R6 Y8 Q7 I1 d
{* x* C/ Q+ o9 i i$ S/ j2 P
MessageBox ("Get Poke Unsuccessful");$ `* |, h: J N
return;' V2 x' r; ]) S
} . j( k1 x8 F: M, b! C5 N: H/ l( a& w9 ~+ l1 s. @
/**************************传递数据给extend**************************************/ z6 j( u( T% }1 y- {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - Z( m) g" g1 W9 N, ~' Z4 U# \ 7 L2 C0 p9 B3 z* j! b
valueStr = SysAllocString((WCHAR *) L"1232"); q" q* M/ m: t. ~
VariantInit(&pokeVariant[0]); / B! J/ j+ `+ Q+ V1 l- k3 _ pokeVariant[0].vt = VT_BSTR; 2 T9 c8 E7 v. i. I3 O pokeVariant[0].bstrVal = valueStr; ) Y# `, n' X2 y" r; ^* A 4 n' B; g! f% L# } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ z# ^, [$ j9 e) ^/ P" ^
VariantInit(&pokeVariant[1]); " s2 P1 Y* A* F, } pokeVariant[1].vt = VT_BSTR;8 K5 N6 k) u& |( x3 t
pokeVariant[1].bstrVal = itemStr; + B, I9 f3 ]( p! ^3 v9 I , Y# r5 E% A) i, Q" |; R' } topicStr = SysAllocString((WCHAR *) L"system"); # V$ \ g0 R. h0 g# ~3 C# s VariantInit(&pokeVariant[2]); 2 I# k( I$ p2 ]1 h7 o4 j/ ? pokeVariant[2].vt = VT_BSTR; . w6 d, ?9 T, W( M i pokeVariant[2].bstrVal = topicStr;) S( ^! P2 \! \" D
4 a' J/ H7 x0 _0 `8 K& h
// Set the DISPPARAMS structure that holds the variant.( M' e. r8 ~2 o- b8 ^: g O7 s1 G A
: y* c1 L6 Q& Q/ Y dp.rgvarg = pokeVariant;8 \6 J' b; R2 X6 [) }/ U# T3 \
dp.cArgs = 3; 2 O" E' \! |( A' `' ]1 i+ U" c dp.rgdispidNamedArgs = NULL; ! ]( D, H* D" `% `6 y! I. J z dp.cNamedArgs = 0; , ?, N% |- Q; ?0 u8 W5 L& W9 m5 a7 B w+ O) y
// Call IDispatch::Invoke() : Z0 O* d9 i2 Q* M7 @0 k 9 l5 E7 g4 d( T! v" N1 e0 s- n hr = m_pDisp->Invoke(1 L1 ~ k8 Q# T
pokeID, . i7 n% I! U1 I6 q3 H _, [ IID_NULL, # n. U% }2 M Y. r4 ` LOCALE_SYSTEM_DEFAULT, ' F* R: g1 i/ g1 @6 |, d" H; @' G DISPATCH_METHOD, 9 o+ r# z7 O+ h/ D: w- E &dp, * N, e/ q+ _: C% C' w2 P$ u( P NULL, " D, A8 I! ]. w1 J+ [ &ei, . t8 `# ?3 L& H( v( F2 h: R0 M/ O &uiErr);6 f* v& j/ h( w" o& H
% B6 [+ [3 F# l+ v% H& d SysFreeString(topicStr); ) I( P, i9 W% V: g& W SysFreeString(itemStr); / S) F9 K: }' o1 p SysFreeString(valueStr);- B& N9 s9 `' B
# u5 a$ w Q; S a6 ] V
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??? 5 W' R# f7 c9 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????+ {$ j Y5 l; u: d
' S- A3 ?: p% ]7 J) a% L+ \! ^' C- r8 @, o# p
2.这是request的程序; x. a8 X, v M: ?: e8 j: L$ j. O ^
// Request a value from Extend % O ]( F$ l4 Z6 x//2 w; M _1 A# |% J! z0 ]
// Initialize the variant that will hold the BSTR. Set the variant's; m8 V, U: C. U8 p1 j
// type flag to indicate the fact that this variant holds a BSTR. Place the ! x! n `+ [4 [2 A// BSTR into the variant structure. D; P9 C+ ?" z) {! y2 c$ D* Y
3 Y4 c+ `; F+ c' s7 X. f
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + q, S5 M; ~8 \5 T G% h b+ K0 ~ 0 @4 d3 ?4 f# p" [( O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) H/ Q9 V M6 r VariantInit(&requestVariant[0]); 6 ^5 C+ ]# l- ^: ^ requestVariant[0].vt = VT_BSTR; 0 l8 V2 w- t8 ^: x _ requestVariant[0].bstrVal = itemStr; 6 q1 g! f& A( H$ ]+ O+ D; y0 Q0 K5 g% {* d6 Y
topicStr = SysAllocString((WCHAR *) L"system");3 D* L9 p3 w3 p" S. N4 z. ^8 [
VariantInit(&requestVariant[1]); ! I, k/ ~2 R. u* ?
requestVariant[1].vt = VT_BSTR;8 |' H7 V; L, `& [/ p
requestVariant[1].bstrVal = topicStr;$ M& d$ W. L# A, n2 |' M
# L$ q- L" g2 ^2 V// Set the DISPPARAMS structure that holds the variant./ K& m; [( E* z
( F J6 E5 b+ M7 E f: M4 B' h- ] hr = m_pDisp->Invoke( # E0 H, f: a g2 W( r7 P requestID, 3 K/ d4 i: U4 r IID_NULL,6 z% _7 A; ?8 U. A7 p
LOCALE_SYSTEM_DEFAULT,+ s+ g* H* t" X2 k& o
DISPATCH_METHOD,3 o, B$ T* q( F
&dp2, " F; Y1 A5 Q8 z3 Z* t0 p) C9 a4 I &var, 6 x0 j3 p. Y z' Y/ u" W2 `. d; _ &ei,$ y2 Q4 a# A9 A+ R2 `- |
&uiErr);* h v8 s6 S0 b
! s4 h2 C3 j: y SysFreeString(topicStr);6 C* Y) O f3 [( Q
SysFreeString(itemStr);& i$ m. ?* y J9 T
请问该程序是获得extend里面的哪个值?1 a' Y [7 [: H* @) t7 t
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????