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:3 K$ P( y8 T- d7 z+ O
Name = (WCHAR *) L"Poke";6 A0 ?) e4 y6 ?& r
; H1 S+ ]: [/ L* b% L9 O hr = m_pDisp->GetIDsOfNames (, I, G: O" F: [, {
IID_NULL, // reserved8 r: `; Y9 S/ V+ Z: J' X @
&Name, // Array of names to get IDs for g( G/ g$ Y C0 { 1, // # of names in the array+ w0 `5 {5 L6 p, d" u
LOCALE_SYSTEM_DEFAULT, // System locale 4 ]/ u9 {: p) G& B" w+ B &pokeID); // Array of IDs to fill on output% M6 O* J% \ ]% \
# `: v7 U. {8 ?9 H, A' x2 _; ~ if (hr): Y) |2 B& N; `
{ " n' O. M; h+ |# l MessageBox ("Get Poke Unsuccessful"); 9 I4 A+ t- T. o% V. t* f: C0 J return; 1 O B8 D% ?/ Q b) @( r0 S, I }) `2 b! Z( v H5 Z f! T, |: p
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/**************************传递数据给extend**************************************/4 u$ Q$ z; K8 X# D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ a W& p2 L" Y3 J9 r
. X0 z z: U7 z( B o valueStr = SysAllocString((WCHAR *) L"1232");2 e2 X- J5 D# J- w7 e
VariantInit(&pokeVariant[0]); & w/ S) U7 |% X0 O$ Y* W
pokeVariant[0].vt = VT_BSTR;: v; m) \" \$ x% v" `; c \8 I
pokeVariant[0].bstrVal = valueStr;3 Y3 V& x6 r6 m' r
+ g7 i0 ]5 \3 I" J, f0 M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ p D: I. @9 q& k/ ]2 i
VariantInit(&pokeVariant[1]); + Y- j4 W7 m. ^9 U d7 B
pokeVariant[1].vt = VT_BSTR;7 C- A' h* _+ g& p8 n- M4 B8 S! P# K
pokeVariant[1].bstrVal = itemStr; 7 w; m6 P7 T/ q* Y4 V. ? L3 L N* M) ]
topicStr = SysAllocString((WCHAR *) L"system");% j; Y& p: ?. P
VariantInit(&pokeVariant[2]); 7 N0 d F( X8 o+ j pokeVariant[2].vt = VT_BSTR;. S6 z2 R( Z) l3 g! j3 R" V
pokeVariant[2].bstrVal = topicStr; 6 Z; C, X3 B& B+ X/ y0 c ! }2 A0 o- V" N( q// Set the DISPPARAMS structure that holds the variant." [& C& G/ q! P+ C3 \# D; A, F; y6 ^% [
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dp.rgvarg = pokeVariant;( ^2 O" u( W5 p; Z% N' y
dp.cArgs = 3;8 t3 F+ y- g+ F0 \+ m
dp.rgdispidNamedArgs = NULL;! Y& z. t% [- B P
dp.cNamedArgs = 0; ' m6 G8 F- S! R z+ U. L9 R8 k- Z) f0 a+ h. [6 e
// Call IDispatch::Invoke()( D& L0 A8 \0 F% H$ [
; z: p/ `) Z" Q# y# ~, a, M3 C7 b$ B hr = m_pDisp->Invoke( " l% j7 V3 B7 w pokeID,, A( o0 h* i; ? x
IID_NULL, # Y; c# e( K/ [! Z. F3 e/ \ LOCALE_SYSTEM_DEFAULT,9 j! g, h0 v, m5 o
DISPATCH_METHOD," H( ?! M( E1 ~( ?
&dp,5 k0 q! U0 }8 ?( D- C
NULL, 1 G9 J9 F2 r: \5 h; x7 } &ei, ! |* |8 r, u& z &uiErr); ( x. W6 Q. e# h- v) q! ^4 J$ C9 H& w+ f6 Y. H) u
SysFreeString(topicStr); $ O& v( h$ w: b5 S& G" ^: S, p1 H SysFreeString(itemStr); ! ~7 ^7 p. X9 z5 N; h3 ]; K: N9 y SysFreeString(valueStr); : \; k; S. I. P/ [- Q. ~% B( S* }: P- J9 c. f+ Z% f- w' U2 N2 g
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??? v, c3 B% R, z3 N- n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???? ^, \& y: G0 T ?. J' W
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2.这是request的程序 6 n4 k( a/ t0 J. Y+ a// Request a value from Extend . m+ z, U7 v: U/ n u// : k; I' U- u* O0 ?+ e6 X7 b// Initialize the variant that will hold the BSTR. Set the variant's; b* I1 n( Y$ N! z9 ~% N0 w
// type flag to indicate the fact that this variant holds a BSTR. Place the& ^# ~* i3 w7 j- `% X9 D* R" p
// BSTR into the variant structure.. C2 P* @$ B8 ~: \8 _7 Q! I
; M% u i# W5 G+ J) ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% n' P& u) O$ @" D+ b/ e* d
$ X' K! r O6 e, R) a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( N& A! ^$ h* S. P VariantInit(&requestVariant[0]); 4 Y) i: Y( T, n2 a6 }/ T- ? requestVariant[0].vt = VT_BSTR;' i# x- a4 x) D2 |6 X8 |! U# u
requestVariant[0].bstrVal = itemStr;; E T; u& }* `0 ]( i& O
& e' |" D0 }* F$ b' S topicStr = SysAllocString((WCHAR *) L"system"); 2 I+ G5 F# V8 T/ s VariantInit(&requestVariant[1]); # Y9 p( y8 n. o- Q- U6 j$ e* u( K requestVariant[1].vt = VT_BSTR; - z3 U J# N% M( j8 C( i requestVariant[1].bstrVal = topicStr; 1 w- k* b; c6 x( D0 l4 Y 2 D$ ` T7 U# r: b9 I* w3 V6 r// Set the DISPPARAMS structure that holds the variant. ! x' c! R5 g0 j. d& B, l1 ?2 V% g6 I; n
dp2.rgvarg = requestVariant;2 X$ y3 M3 M8 k
dp2.cArgs = 2; ( y: b8 L! z: B! {0 ?/ A+ w& @ dp2.rgdispidNamedArgs = NULL;4 ~. \1 N5 w5 j9 O5 h
dp2.cNamedArgs = 0; % U/ _# L( s( }2 ^6 o# j' F- A& n" Y! {8 T; U) f' C
var.vt = VT_EMPTY; + E/ f7 N8 `1 _ a5 `% @ + i) J! C$ v) F- [ F// Call IDispatch::Invoke()6 _- W; r5 Z' S. c* \
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hr = m_pDisp->Invoke( , l/ q0 u* @+ }( h requestID, 9 o! U: W4 e- ~# H) |- I. n IID_NULL, 7 X$ k! `6 Q4 ]( M$ @ LOCALE_SYSTEM_DEFAULT, * V4 u0 K, N4 [- O DISPATCH_METHOD, {0 f# T. m* e: t3 m# T0 y &dp2,7 O5 {& q/ ~+ J: C [2 l
&var,% Y" g! b) ]9 }& M
&ei, ! r7 N) @: U4 x* ~ z& t &uiErr); / ^# A& ~& o0 u G 0 C- G2 `, ^7 f2 } SysFreeString(topicStr); ( c/ j# ]. _' m0 i SysFreeString(itemStr);7 c2 y* J3 s! L, F- `: T
请问该程序是获得extend里面的哪个值?! r% M% N" x8 Z- g* c: M# x
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????