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 j" W: v% l! ]% f) |, Y/ G7 H
Name = (WCHAR *) L"Poke";* r1 Q% w* W6 C. a/ _& E; I+ L
8 W# H/ O7 q+ U- U% ?0 u$ u7 Y
hr = m_pDisp->GetIDsOfNames (! F7 {* Q q- D- X5 ?# }! B$ o( F
IID_NULL, // reserved 0 t$ O& _( \1 B* C% P &Name, // Array of names to get IDs for4 J* z0 P" e% D! m6 j% T4 C, N
1, // # of names in the array 8 H: I( W3 Z+ U4 l+ | LOCALE_SYSTEM_DEFAULT, // System locale ; ]+ W5 O: |. p5 G0 `& i { &pokeID); // Array of IDs to fill on output 4 x8 ^( T- \# L. ? # C ~3 `5 W9 C0 {% E
if (hr) ' |$ C; k# J$ f {' n2 I# L7 Y; L" |3 @3 H
MessageBox ("Get Poke Unsuccessful");" w T. S8 `' F$ j; ?5 Y1 Q' D1 b; Y
return;0 i" r+ t, Z: g: a
} ; z. m. M, V! I- C0 Z( ?" u. W5 K1 ~- t- r0 R$ q
/**************************传递数据给extend**************************************/ , A# M4 t7 q1 u) m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 v3 U/ G7 O# o, f6 g & H. f# H; {% b9 r2 d/ ]- ]+ u valueStr = SysAllocString((WCHAR *) L"1232");7 J. o. C. e6 \
VariantInit(&pokeVariant[0]); ; o* c: v9 g, i' @ X+ ^* r+ A) P pokeVariant[0].vt = VT_BSTR; 7 s7 A4 |0 o+ R$ C pokeVariant[0].bstrVal = valueStr; ' A ?3 _% R# d6 b# l" v) g2 V7 Q$ U" I a; D: N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' T! G; l" |3 o/ W( @3 O- d" t
VariantInit(&pokeVariant[1]); ( l* { C7 W+ L8 `, b/ g% P% F pokeVariant[1].vt = VT_BSTR; 6 Z( d/ `$ @! a% p pokeVariant[1].bstrVal = itemStr;! c9 c- K4 R9 i/ h" ~! U) F
& i0 p0 _$ J" E) r
topicStr = SysAllocString((WCHAR *) L"system");4 c8 T9 M9 f5 G6 N: l( a
VariantInit(&pokeVariant[2]); " k3 ]3 {) `8 g6 l4 X pokeVariant[2].vt = VT_BSTR;, q9 p% k+ w1 ~3 D$ D' X
pokeVariant[2].bstrVal = topicStr; * s, m# c8 ~0 g+ b1 u$ L& [+ e1 N( \( a* ~; T" E! n) Y! J* `* D
// Set the DISPPARAMS structure that holds the variant. 6 T( z. B2 w, z* v2 }) i- d) o- h1 y' y
dp.rgvarg = pokeVariant; - K' j' y/ s2 a dp.cArgs = 3; + S5 }) D4 @! C- ^6 C dp.rgdispidNamedArgs = NULL; * c, A% p" ]+ {2 V2 U! H dp.cNamedArgs = 0;+ d8 I7 ~) F3 M2 t6 N
" [9 n$ S- m2 b* c2 E% _: Q( A// Call IDispatch::Invoke() / m5 _1 k3 ]4 ?9 A* _5 t$ q, h4 U( b* Z! B% C- E* [: d! h
hr = m_pDisp->Invoke( ' V) `6 u* w# P1 q pokeID, ! D% M4 [+ u" O) }, T IID_NULL,0 t/ N0 x: U. N0 ^: N
LOCALE_SYSTEM_DEFAULT, : H$ J/ h. c2 S5 [! Z7 m; o6 V DISPATCH_METHOD,# s- x9 f7 _% N3 [
&dp, + p7 m) T0 { a' g' a3 Y7 b9 k NULL,2 l6 L2 _, H8 N- l6 W _, i
&ei, ' i& P# m9 F) v9 {, \/ ^- i' { &uiErr);4 G% B. w2 Z0 F3 F0 ^/ K
/ u! K! E* H( u& V V SysFreeString(topicStr);" k0 m0 v" P0 R; T$ G
SysFreeString(itemStr); 6 X" s) `, c" h U SysFreeString(valueStr); $ f$ {: O5 W% b m( T ?5 D- z- S5 _5 b1 r8 S1 Q
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？？？, j$ w8 W$ Z5 t: q2 r3 u3 [
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？？？？ 9 t: G2 d! H* x6 u& p1 U' X ; h: u4 h: m: R. Y Y 3 N, i( k% s5 r2 o' @; t5 v; W2.这是request的程序( d2 H, i. n- T' B% ]. o6 d
// Request a value from Extend$ A# C# ?( S/ B, s! k- J4 K* [
//: B9 `6 ]# n( O* A% g& g- V8 b5 d) m
// Initialize the variant that will hold the BSTR. Set the variant's6 p. ?: d) I& ?+ [3 `! n
// type flag to indicate the fact that this variant holds a BSTR. Place the8 b6 s' W4 A/ I1 V3 L" T
// BSTR into the variant structure.2 k6 @6 v. p2 a6 i) V
: v$ N1 P- }+ }- {5 Z/ _
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ S, `1 W+ K0 t4 |
4 L$ b) T% J2 t( _' f: [* o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) w3 W/ a( I5 [# N, w7 ^( R
VariantInit(&requestVariant[0]); 9 x! g' c, I" J requestVariant[0].vt = VT_BSTR; " T7 G/ \. ~- }! y9 x5 L4 r requestVariant[0].bstrVal = itemStr; 4 @- C% J3 t! x8 X& t6 y, I) J" _2 S- p# |
topicStr = SysAllocString((WCHAR *) L"system"); a+ J- a9 q* t& `8 w5 u4 B) f& W
VariantInit(&requestVariant[1]); ; n; ^& ^4 X, [+ d& Q- g9 ~$ ` requestVariant[1].vt = VT_BSTR; * M& g# d+ X6 [0 U1 P6 s2 G9 F requestVariant[1].bstrVal = topicStr; & d+ ]7 P5 I% c% Y5 p 5 T" g1 Z7 x8 ]/ |7 n! @// Set the DISPPARAMS structure that holds the variant. + A, G* j: u6 Y$ X% H7 F1 L$ ?5 ?6 r# T2 Y+ n& e* _
dp2.rgvarg = requestVariant; 0 F0 L0 N- C+ K u }' I dp2.cArgs = 2; ! c8 V; a; a: `/ ` dp2.rgdispidNamedArgs = NULL;- q1 Q3 r; I/ ?3 V; q
dp2.cNamedArgs = 0; # f. n+ Y) E! z. @% V+ s/ y( A* B- x6 P$ }1 f; r5 M
var.vt = VT_EMPTY;$ x9 S+ b* [% \; V, F' u
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// Call IDispatch::Invoke() 8 G! B" |) T; w- _& u/ J% X1 @5 j! t4 E6 g4 U
hr = m_pDisp->Invoke( 0 @) ~9 ?" J# A! W8 z. N: {4 u" T requestID,- f( c8 W' \( e0 C
IID_NULL,. [+ ^' S# J, J$ o! `. r* k
LOCALE_SYSTEM_DEFAULT,2 Y. A, |) \8 \' K+ r
DISPATCH_METHOD,. z: `( u- G( N6 g4 g
&dp2," [4 G$ A% D8 M
&var,% |* `% j$ [& m2 I1 U) R
&ei, 5 V' R$ }4 v- o! \3 U! d' E &uiErr);( R* T# \+ l$ p: N- [
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SysFreeString(topicStr); 6 H" G6 v' R6 {8 o3 T7 m SysFreeString(itemStr); 4 h! i' V. j+ N/ Z# @请问该程序是获得extend里面的哪个值？ 5 n6 C1 |7 f% ~: U3 P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
