5 仿真币
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:( h. Q; O q+ q. W
Name = (WCHAR *) L"Poke";
% d" E: C. I5 _. {
3 [$ g4 A( P. G) X6 u- P' c4 Z2 g hr = m_pDisp->GetIDsOfNames (
$ X- J! }0 i' T0 N8 F- y% i IID_NULL, // reserved
2 ~/ G; F) H, q &Name, // Array of names to get IDs for% L2 A G: m2 P; N1 ?( Q
1, // # of names in the array
7 b# \& |' J* m6 n& T LOCALE_SYSTEM_DEFAULT, // System locale
3 R* d& ?% o/ g" }4 L &pokeID); // Array of IDs to fill on output
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if (hr)
; ?8 |; f: {2 z/ u; c# T# U5 o( [ {
; M5 H! I, k/ N3 c0 Z* { MessageBox ("Get Poke Unsuccessful");" s' p- K5 s1 \; v! D: p
return;
7 @0 U( D# \+ d; b* g }
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/**************************传递数据给extend**************************************/
* [% r& h& U/ h/ ^" ~# r [ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 X; O+ b* a0 ~7 k H9 C9 K0 h1 \( Y; n+ K
: M; H% w* Q9 T) k7 V+ h c valueStr = SysAllocString((WCHAR *) L"1232");, N* d7 k+ J6 M# t
VariantInit(&pokeVariant[0]); / x5 Y6 f' [" N" n" P
pokeVariant[0].vt = VT_BSTR;
) S2 P* K+ M9 r1 n; U pokeVariant[0].bstrVal = valueStr;
7 W5 g" m8 W5 R1 z
8 p: P. F7 e6 M& s- W H+ o. \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: M- w2 Y- m2 S J( A, `6 g
VariantInit(&pokeVariant[1]); ( g# Y! ^0 D) V" U; P: l
pokeVariant[1].vt = VT_BSTR;
' v7 Y, G' X& K5 y+ L pokeVariant[1].bstrVal = itemStr;
# g. w: C1 E+ j
1 r v4 J7 O8 s topicStr = SysAllocString((WCHAR *) L"system");& _8 p1 s4 u" a. M
VariantInit(&pokeVariant[2]); 0 i6 P2 \. h/ W8 c5 Y. t3 `; _
pokeVariant[2].vt = VT_BSTR;( h7 }9 z/ N. w. M
pokeVariant[2].bstrVal = topicStr;! i: d; w8 X- H) R
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// Set the DISPPARAMS structure that holds the variant.7 p0 t$ r( | _; @0 n# H0 x# |
6 Z4 d, H3 `! F5 Q dp.rgvarg = pokeVariant;
! t$ U$ w0 b8 G9 v: D% q* X6 c( s" G/ o dp.cArgs = 3;
" ^! w, {3 ]' l9 O9 C dp.rgdispidNamedArgs = NULL;8 d) o/ {$ F& W4 y( a& r
dp.cNamedArgs = 0;2 c; S) ` u$ E: r6 m+ j
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(- Y: r6 `: W: g, ]* z2 @
pokeID,
[9 S7 I5 i$ @3 w* | IID_NULL,
* j0 v. J$ o4 W% E: R+ M* w LOCALE_SYSTEM_DEFAULT,
* h$ c4 B8 |# z DISPATCH_METHOD,
/ O4 M; n! x2 X2 L$ ` &dp,
, T& Z8 {0 i" X6 d) F! x NULL,) c( r c. e- }$ t
&ei,0 R; i2 \2 k9 V. d; k! ?# R7 |
&uiErr);$ g5 [6 O* d6 n. s' A: ?
% ~: R1 Z4 M, ]" u/ y, c9 R5 @
SysFreeString(topicStr);5 z( x$ b+ T; e& L' }: k
SysFreeString(itemStr);( l" I, [ _/ H. a
SysFreeString(valueStr);! _* @8 h& N e' N0 t
! }( h7 R/ A& z5 N) J$ i/ K- J 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???
; k0 w: g& _ r6 n# t+ V; L 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????, j2 O6 N- ?4 ]8 a8 F
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8 {9 S9 |% |" M7 E9 e/ } 2.这是request的程序' k* |1 f: d) L8 @' T
// Request a value from Extend2 E- o% ?2 Z k" u: @6 B+ n
//3 u3 e! v' t5 V: e/ C- o7 D
// Initialize the variant that will hold the BSTR. Set the variant's% [; j% }8 w! |8 z1 K# A: o1 G
// type flag to indicate the fact that this variant holds a BSTR. Place the& O6 j" c* w) i$ G3 Y' \
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: P- T! R$ d- ?5 T! k
0 T( k9 m7 o9 {- w$ ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' T) N1 \+ A& B3 y4 S# S VariantInit(&requestVariant[0]); : S2 L* y0 v4 @; T% Z3 e
requestVariant[0].vt = VT_BSTR;( Q* m8 K$ K# ?8 @
requestVariant[0].bstrVal = itemStr;# h+ |8 G, I7 f/ e
! O( f$ N8 g# ?! c! Y topicStr = SysAllocString((WCHAR *) L"system");1 O9 e$ y4 m) {) w$ b
VariantInit(&requestVariant[1]);
# q! q4 H4 L; \* P/ q% U& j requestVariant[1].vt = VT_BSTR;3 U& B9 O6 Z H e7 R% T+ q8 k
requestVariant[1].bstrVal = topicStr;2 `, \) @5 L6 U ~
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;9 h, l k6 }4 ?9 o
dp2.cArgs = 2;) \4 d0 A8 H( t( d" f# B
dp2.rgdispidNamedArgs = NULL;
0 B6 Z- j. l4 _ dp2.cNamedArgs = 0;
' ~2 k+ ^ y) S k, h
: |9 b9 p/ N' [5 \6 M9 T3 N var.vt = VT_EMPTY;. O5 [: K+ y6 U7 j: p
' S2 d+ { N/ w( m4 M // Call IDispatch::Invoke()" m: k. Y7 m5 q2 Q
8 ]- N% q2 S8 R( K! F3 O9 } hr = m_pDisp->Invoke(
" D, T' m& C( U5 Z g" O requestID,0 W" ~( _, R0 Q8 c1 |' X; p
IID_NULL,
" p" E5 t6 L# I* x LOCALE_SYSTEM_DEFAULT,& |" b3 [# [4 S, f6 K# d/ L+ s
DISPATCH_METHOD,
! i5 C2 j9 J- z) o% w* d. k &dp2,
- g. w2 ?5 ^$ K) C* E2 h &var,. ~8 P) {9 o9 m# p8 o) ^- n" N
&ei,
& N; }+ e) Q# I3 Q$ H, O$ D4 _ &uiErr);& e# Q \$ g8 z) K; R; P: y" C. |# P t
9 j/ J2 d3 h& M7 G4 N6 H7 w) h SysFreeString(topicStr);0 L+ }% {8 O. O4 d' j, q
SysFreeString(itemStr);
! G4 a4 P: q# o+ J5 k D 请问该程序是获得extend里面的哪个值?
8 p: ]& e% G0 j% G 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????
我来回答