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： - {' u" d7 M8 j0 E; S6 {Name = (WCHAR *) L"Poke"; " m4 y. G6 @* I0 [ : J3 _- o- i! _6 p) x$ B# M, O hr = m_pDisp->GetIDsOfNames (3 l" d# _" Y# h) F! ?! i
IID_NULL, // reserved. P) P; n) T* b9 p- {
&Name, // Array of names to get IDs for ) G5 n a& \ C: Q9 g4 S/ [" a 1, // # of names in the array6 f5 z6 h: s3 q `, B$ M
LOCALE_SYSTEM_DEFAULT, // System locale- x( j. Q7 D. p( y
&pokeID); // Array of IDs to fill on output ) g, B. _' U2 Z; ?+ c8 K % `7 y M- k7 G5 _
if (hr) 8 H0 X/ ?- @( B { + p& |' H) K8 w5 H MessageBox ("Get Poke Unsuccessful"); " J9 H4 z9 A+ y3 J3 \+ \ return;6 q4 C" ?7 k) I- T% @- ^' u$ D
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7 h3 c: a' l d0 Z/**************************传递数据给extend**************************************/ ) O( \; s3 Q0 l' }$ h; H4 Y% Z# b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% U% W6 o4 ~0 O4 L% K' g
" ]: J. K" P! @& k valueStr = SysAllocString((WCHAR *) L"1232");# C# l6 O- u, j& u
VariantInit(&pokeVariant[0]); , R$ \2 @5 O& i pokeVariant[0].vt = VT_BSTR; 0 {+ z) @* s' ^ pokeVariant[0].bstrVal = valueStr;; c/ P' v- d* s5 w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " a s" V! R+ N8 d VariantInit(&pokeVariant[1]); 7 B. |- v4 v* x) W7 b: F7 O# S
pokeVariant[1].vt = VT_BSTR; 2 L7 @* |0 X3 j& B+ U# n. y pokeVariant[1].bstrVal = itemStr; + ~, B1 P2 h" ~/ [! |# B) L3 s! U5 Z. ~
topicStr = SysAllocString((WCHAR *) L"system"); ( ? |* N. I, r. ^8 v2 {8 f9 Z8 u3 r: ^% S VariantInit(&pokeVariant[2]); . ^: ~* m* W+ S1 k* o# p9 K2 @) v
pokeVariant[2].vt = VT_BSTR; 7 L6 n) w0 y7 ?1 U pokeVariant[2].bstrVal = topicStr;. M1 d, N* A p( j
; k) W5 r' Z0 G// Set the DISPPARAMS structure that holds the variant., A# x2 y7 Z" K0 S7 W1 A0 b
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dp.rgvarg = pokeVariant;+ \8 y# R4 t& Q' }- ^' G Q
dp.cArgs = 3;5 B' y) U; g- z4 m7 M6 S& D& |, _
dp.rgdispidNamedArgs = NULL; ! k, I7 _- Y# X! u2 j- N dp.cNamedArgs = 0; ' ~( O& W0 B. \* }4 J5 k . g6 H+ N9 \: G8 H( S// Call IDispatch::Invoke() . s% k; O' j# ^$ z* w, t* A- e X # C2 X' c, ?' c+ c2 v hr = m_pDisp->Invoke(, I( K4 |+ A. E$ a
pokeID, % b3 D6 r: V/ q$ ]6 O4 q1 l/ X9 Y IID_NULL, 5 p0 N* T8 p C& {% X" c3 J" P LOCALE_SYSTEM_DEFAULT, 4 v1 C- Q5 V& Z& s$ | DISPATCH_METHOD, + o- e, I, c! L: ] &dp, S6 d4 y3 y' Q% H' L NULL,- {0 Q3 N* s6 a5 g' `
&ei,& H0 }; r8 ~' L) M$ ^
&uiErr);: B: {- ?$ K8 w8 W' X9 g
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SysFreeString(topicStr);) A2 V' h5 m" R# D
SysFreeString(itemStr);5 ]3 R/ z: M, O* I0 C% w
SysFreeString(valueStr); 1 U: l" t3 x$ H ( t7 ~. A+ L8 X! W- v0 N- ^$ C5 @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？？？ $ A! M; b4 b1 w9 c2 \: I. s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？？？？/ W& p- }' \! @; B$ p
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2.这是request的程序 6 l. |4 E$ {$ a+ g! t/ l0 r# f// Request a value from Extend * N4 i* O4 v7 J7 l4 H- H//; S, O& t' I# m" r- A
// Initialize the variant that will hold the BSTR. Set the variant's " Z3 U- J! D% w1 W, d: R// type flag to indicate the fact that this variant holds a BSTR. Place the4 [4 Y8 x4 ?) O2 O; B
// BSTR into the variant structure.# h$ G3 }/ ]) ^0 ^
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ a3 J% D' E) g & c$ D( ?, r! ^% s! P# D8 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" }5 y4 ]# J2 F |1 }0 ]
VariantInit(&requestVariant[0]); 4 l! |8 {, p0 @# G9 X: q
requestVariant[0].vt = VT_BSTR; h# t0 f' a1 O4 b4 A* S
requestVariant[0].bstrVal = itemStr;9 _9 `+ i5 T8 H
J6 r3 J' P$ G% k& l; u4 w topicStr = SysAllocString((WCHAR *) L"system");) G- N& w) K. J7 ]! H" R
VariantInit(&requestVariant[1]); " A$ _4 _: h# v/ {& h
requestVariant[1].vt = VT_BSTR; W1 `( p$ f6 x) C requestVariant[1].bstrVal = topicStr; 3 t& R. G. X4 C7 Y1 `; r6 V) i4 o
// Set the DISPPARAMS structure that holds the variant.5 _, o' p' c3 O) f
5 B7 U+ v$ t" K J' i& o dp2.rgvarg = requestVariant;, q5 f0 d9 n+ ^9 f6 M: L1 q7 X
dp2.cArgs = 2;; |: H/ z- e" R+ d" }
dp2.rgdispidNamedArgs = NULL; - d1 {: Y n0 o( ^1 N; y dp2.cNamedArgs = 0; # j9 _" p ~$ S5 c0 t7 F4 b K7 C o( e- A6 e$ g/ a: X a var.vt = VT_EMPTY; ( x' Y5 }+ Q p! r6 c1 N1 ?# i . |7 Z" q0 M1 p4 t// Call IDispatch::Invoke() 2 `1 B& N) ?* X6 G. \2 I# |* H( f' u$ V, P5 {& E+ Y
hr = m_pDisp->Invoke( 2 }% m$ h' ]0 U/ S7 u requestID,/ `; m5 J% N7 Z' V9 |9 c$ v4 C! e
IID_NULL,8 X0 M) J! P6 ^2 C7 R/ a: G) {
LOCALE_SYSTEM_DEFAULT,2 ]1 |4 H5 z3 x) g) ^$ X
DISPATCH_METHOD, : w) s1 j+ y: m( k6 ]7 b &dp2, * r& r9 S8 I+ E- j: {, F &var, ' c6 b' w1 M1 p6 h; Z &ei, 8 ?& l# t! _7 _* o+ e8 O) M" w &uiErr); : k. p* k a0 R! N6 s 6 V# p5 T7 U: n/ y% m1 B SysFreeString(topicStr);" |* F5 L9 D/ G' @: L
SysFreeString(itemStr); 2 G: K0 G a& }! j5 g请问该程序是获得extend里面的哪个值？ ! Z) Z5 s# L+ [7 a0 W( e1 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？？？？
发表于 2008-11-25 19:37:03
