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: 8 P8 N0 r! K- Y/ c' fName = (WCHAR *) L"Poke";" C% |, r- x5 ^5 ?0 N. l. @
, t) i4 J4 y/ _; q+ B
hr = m_pDisp->GetIDsOfNames ($ s* O: {$ j0 I$ g
IID_NULL, // reserved 4 S$ {) [4 P6 H L5 N. K &Name, // Array of names to get IDs for: Z o: U! F# a0 W
1, // # of names in the array% v5 ]9 ]* H5 e2 \
LOCALE_SYSTEM_DEFAULT, // System locale/ I! a+ {6 }3 K* r9 [3 d+ A
&pokeID); // Array of IDs to fill on output' [3 i0 x* i2 _9 ?; [" p
+ [" f/ {7 t0 {0 F* P if (hr) 5 a9 N5 }, z% \ B) T, L3 P2 x {3 m7 b- G+ w# ?$ \5 b
MessageBox ("Get Poke Unsuccessful"); / h6 c* X; I2 } return;; l) R: O x' @6 w, U
}( m( a' B1 @6 U* g2 w3 _
# L4 o X4 C* }1 A/**************************传递数据给extend**************************************/! U2 l+ x3 f- w" F% N0 }6 l. m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' ?& e4 v- |2 ~) R7 Q
6 N: Y5 `2 H) V
valueStr = SysAllocString((WCHAR *) L"1232");5 k$ O1 I5 ~! F* C2 a P3 W. d# o
VariantInit(&pokeVariant[0]); + q+ A+ }3 {- q4 E R5 Z- o' N pokeVariant[0].vt = VT_BSTR;6 { c! M. m" l% ^* q! J
pokeVariant[0].bstrVal = valueStr;$ d6 X$ d2 n# h$ J) g+ j. N
" ~/ f" ^, a1 x4 c n) h" b; T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 }9 v: u/ C1 w5 r F& {. ^! F
VariantInit(&pokeVariant[1]); 6 f6 j, k% m$ m8 S! y% B; x1 w pokeVariant[1].vt = VT_BSTR;4 c: Q) F( {$ L* [
pokeVariant[1].bstrVal = itemStr;7 i& B+ X$ {* S5 T) H6 M
- k/ T" z8 b" o/ R topicStr = SysAllocString((WCHAR *) L"system"); # R" T% I9 j# O* f- \, i$ V VariantInit(&pokeVariant[2]); 0 t( k7 G0 z- }
pokeVariant[2].vt = VT_BSTR;, d( J' ]4 A. w' A/ Z# V4 q
pokeVariant[2].bstrVal = topicStr;, E6 O0 P- X7 n2 |( R
2 R5 o' i! W( N; Z0 \
// Set the DISPPARAMS structure that holds the variant., D8 N% G3 ~: @- O6 w
! u3 \/ v0 t. V0 [ x dp.rgvarg = pokeVariant;& o5 x0 T$ C2 f0 G+ W
dp.cArgs = 3; 0 |% x0 c; [6 I8 X; ^8 e y dp.rgdispidNamedArgs = NULL;# P2 S: p2 ^. R" }! J
dp.cNamedArgs = 0;) p1 d$ g7 U; W- \( @4 ` C# ]
% x4 g- X% R( s( L& a' m
// Call IDispatch::Invoke() % _. Y) `9 ]) N: w. G1 Z! Q/ a1 U% `8 F) h7 _
hr = m_pDisp->Invoke( % J d% [- X' Y, n4 u4 N pokeID, , U! X, h4 o) | IID_NULL,; g* o0 j1 `, e0 o6 W
LOCALE_SYSTEM_DEFAULT, * J8 `. R( W* Q, x DISPATCH_METHOD, 5 W1 }( g; I/ P7 Z: V7 e &dp, 9 f4 d* p% s3 {; U0 M/ P1 I NULL,5 t' W2 o4 i% ~$ D) g
&ei, # {, G; N2 o+ w" {! V &uiErr);) G t/ W+ s5 c7 r9 L g; f7 _; L6 ~
; r) z( y( I: n8 R) E' O
SysFreeString(topicStr); : Y% `" D4 ~, c/ J, s- ^4 d SysFreeString(itemStr); , z) R6 a. }9 L; w, T, A$ b9 [& V SysFreeString(valueStr); . V: S, r4 j$ _1 ~. x& h! H5 e# {. ]5 y- E8 Q+ a
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? 2 O( h% z: t8 d( V% g6 c: t6 [. C此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????; j+ h" ?" n6 J2 `' A1 ?
' S$ o& t% r2 W0 }0 i! f
. ?2 m' T& _0 c2 l+ ^ W
2.这是request的程序4 T B0 x$ n- W
// Request a value from Extend , T$ U) M1 y% v: Q* U& {// 5 M: E3 S% e3 V! X; p, ]! d// Initialize the variant that will hold the BSTR. Set the variant's ! c4 j& T g5 S// type flag to indicate the fact that this variant holds a BSTR. Place the 8 O% n. U. x) \" ?// BSTR into the variant structure.2 q: v* P1 P; N0 w7 h
+ b* R4 M1 K, q. U, @. A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 n$ V! B) ?" W# [: R
" y) Y* L0 x) f3 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) A2 ?5 p1 _* M0 E5 Z, M$ e
VariantInit(&requestVariant[0]); " |# m6 a3 t% L
requestVariant[0].vt = VT_BSTR;1 |0 O. ~0 y. k
requestVariant[0].bstrVal = itemStr;& ?4 H5 `8 T3 ^
2 U7 d$ {9 C# g4 \) i0 W+ I) S topicStr = SysAllocString((WCHAR *) L"system");! ^; P+ L1 Y/ c9 C
VariantInit(&requestVariant[1]); % y, c. D$ I$ s7 }# F' V: S requestVariant[1].vt = VT_BSTR;6 Z5 L8 x* Q3 a4 p8 m) X6 Y6 _9 W
requestVariant[1].bstrVal = topicStr; 7 p( X# D5 ^: c4 M* J+ A6 D- t& A; z) K6 ]
// Set the DISPPARAMS structure that holds the variant.6 s6 n2 v" o& k
- ]8 [4 W" Z! G8 @3 u' ^6 y- k
dp2.rgvarg = requestVariant;9 d% d2 C2 H: z4 c8 z! C
dp2.cArgs = 2; 4 ^' ^- c+ D& a dp2.rgdispidNamedArgs = NULL;5 N( o" \2 C; j8 O
dp2.cNamedArgs = 0;* \/ ?3 ~$ |! D5 O
1 t4 g+ O. N r: I6 f) }" x
var.vt = VT_EMPTY; ; u: L8 J! q6 i- u- P/ P- D " |! }' w% e$ @// Call IDispatch::Invoke() ( I( g$ Z' ^! F" G7 _7 Z & h* g5 u0 B4 I! V hr = m_pDisp->Invoke( 2 P; e& n! B' n requestID,( Q+ }" [ _3 M; C7 i' m, d
IID_NULL,1 B" }9 V* j# W: o: o( {; U
LOCALE_SYSTEM_DEFAULT,' l: K u! X o: J h5 w: K2 V9 d
DISPATCH_METHOD,7 I0 }& E2 ?2 }0 f9 F, ~9 r$ K
&dp2, % U: ? `5 u* s" B( t3 M! G &var, 6 {) V, P! t) b: z9 X &ei," J, K, `8 G2 ]: D9 q8 t$ c0 S
&uiErr); # l' {+ {/ G9 U! `$ R. z; q. T, K# y; O. y/ D- ]0 Z
SysFreeString(topicStr); 3 o6 v* E( v) h* T; u4 H SysFreeString(itemStr);: L3 K& n( @$ ?2 Z( J
请问该程序是获得extend里面的哪个值?& N7 c z- N% E2 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????