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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：
3 R* h2 D+ e: p( }Name = (WCHAR *) L"Poke";
$ H8 F% M1 g3 N4 G
/ v" `9 \7 _# A: i: h$ B' e- o% Y3 } hr = m_pDisp->GetIDsOfNames ( C3 }, z/ }7 `. ~7 a
IID_NULL, // reserved4 B, z3 c1 c- H, i! E
&Name, // Array of names to get IDs for
" u! f% ~1 [4 u% p$ N 1, // # of names in the array
6 y% \+ V. f* j LOCALE_SYSTEM_DEFAULT, // System locale
6 u. p+ C( ^7 P9 j. v; t3 b& N1 h &pokeID); // Array of IDs to fill on output) |8 E4 U6 g" Q/ U$ D7 T$ B9 Z
* [3 R0 V$ `% l e' B
if (hr)
$ z$ u* F9 t% J4 _1 J7 a5 d {8 V ?% b6 m2 }5 J4 z
MessageBox ("Get Poke Unsuccessful");
" U* T3 j7 z' ] return;
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* b4 {, p$ ]; o4 o/**************************传递数据给extend**************************************/- P" x+ {7 G- ], s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");# {" `& {. H3 ^; \
VariantInit(&pokeVariant[0]); * {# X* ]1 L0 V8 A' `
pokeVariant[0].vt = VT_BSTR;
0 ~: R" i% B/ ?- \# S pokeVariant[0].bstrVal = valueStr;3 Q I4 S0 |, P
6 v; p$ ]1 X9 l" l, F! [# P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% l$ j% ]5 ^' }! J9 m VariantInit(&pokeVariant[1]); ' y7 [2 Z% w% ?' n1 k
pokeVariant[1].vt = VT_BSTR;
: `. w4 ~% x r: r pokeVariant[1].bstrVal = itemStr;
9 Z$ L. p$ j) \3 D2 l
( U. x l1 y8 l) l7 Y g topicStr = SysAllocString((WCHAR *) L"system");
/ t2 T; Q6 U5 o( E VariantInit(&pokeVariant[2]); 3 ?6 n Q0 u" T! N% J/ i1 \0 T
pokeVariant[2].vt = VT_BSTR;
1 O+ D0 z4 Q; G0 { pokeVariant[2].bstrVal = topicStr;. \& [, s0 q/ L$ @7 v) o
1 z+ @: @; k/ r& h8 q9 c+ Q" i// Set the DISPPARAMS structure that holds the variant.
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" N0 R- w# x2 e0 f& d! [- \ dp.rgvarg = pokeVariant;
6 a+ I$ W' B+ J" e# y l$ X/ x dp.cArgs = 3;3 [' n9 Z. ^+ Y$ u5 ?0 D8 w3 T
dp.rgdispidNamedArgs = NULL;' ~5 _, s: O2 T* e& ~
dp.cNamedArgs = 0;
9 c2 A% q6 {$ Z$ l: T+ H l2 M, l2 x$ i0 C8 {% |1 a7 N
// Call IDispatch::Invoke()6 V8 f. ^ E2 ^
+ n; R2 H6 a' J& J hr = m_pDisp->Invoke(
2 q2 h5 l9 x1 x$ r. E+ `0 r pokeID,+ n& M6 n- r6 h, w
IID_NULL,
+ m: g* ` X' C' q6 {, K. I7 t, w1 u LOCALE_SYSTEM_DEFAULT,
% e5 R" Z5 ]4 F: C9 M% ?+ ^3 C DISPATCH_METHOD,& M$ `3 p( U8 t, Z$ y. k$ c2 o( m
&dp,
9 r0 h8 m% I& J1 z: }2 b NULL,
: k6 I7 [3 w9 |- J q s) b" E- Z% [ &ei,, T" b+ n8 p( P, Y# ], R9 v0 B' X
&uiErr);" `) q& _, ]3 g" S" m8 n3 S
$ o9 O X( v. ]4 D. _3 o
SysFreeString(topicStr);) J5 y; ^! N( N
SysFreeString(itemStr);6 O% e$ v" H" M3 [ J: ?
SysFreeString(valueStr);, q+ @% n8 W. `, {1 n# S
) L0 k% |9 _: M! P! n# I
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？？？
( o8 e1 d! l7 ^: ~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？？？？# }' R' Q/ D8 L' O& {+ A2 j3 o
6 j6 n% g6 K3 t" m! K
; ~( v4 r- K, }6 H3 a9 `7 D- L2.这是request的程序7 U( w& N- C u' H0 S0 o2 N
// Request a value from Extend
, R8 H3 W/ ~+ K, j! K; G//5 A6 O# G; d) W1 [% f
// Initialize the variant that will hold the BSTR. Set the variant's8 |$ r) _+ b: [8 {2 K2 L
// type flag to indicate the fact that this variant holds a BSTR. Place the l4 O$ ], D; H
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; Z5 g% {& D- d
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# o# x' X/ ^+ c3 ~! [0 g* S: b
VariantInit(&requestVariant[0]);
( y* m# I: Z+ Q0 J requestVariant[0].vt = VT_BSTR;
: l f% f2 h5 ~- A8 P) S3 ^0 Z requestVariant[0].bstrVal = itemStr;& W# Q: h# f/ G7 G. V
- h; h& [" Q$ D. V topicStr = SysAllocString((WCHAR *) L"system");
# b& L" Q# w( c' @ VariantInit(&requestVariant[1]); 9 C2 N0 ^9 _$ X9 v! ^$ j" A/ e
requestVariant[1].vt = VT_BSTR;; g1 g# d" l/ {) i0 t' \
requestVariant[1].bstrVal = topicStr;8 d) P! n# U; J+ X- U% F2 W
& E; i3 M; t' U6 i% f// Set the DISPPARAMS structure that holds the variant./ P) \7 e" {! e% D B+ A
# y3 ]+ @ Z: `+ k dp2.rgvarg = requestVariant;
, s# b: e. K; \! F$ N) Y" A dp2.cArgs = 2;# Z2 |' z' `3 o8 D9 ]4 O2 ]: D7 b4 ^1 m
dp2.rgdispidNamedArgs = NULL;
( K/ A, n, b- ~/ q9 s dp2.cNamedArgs = 0;
7 |1 z0 }. O# H$ D$ x+ U6 `! J& ]! o6 x+ }
var.vt = VT_EMPTY; F+ p& i- f# n/ D& c
- h2 D Q/ S8 n8 }: x5 G// Call IDispatch::Invoke()
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' `3 G! G& w0 {) L hr = m_pDisp->Invoke(
- a/ f7 e# e3 f7 Z# P requestID,: _+ X" m7 {) T2 Z# b
IID_NULL,- J4 C# f+ M& q
LOCALE_SYSTEM_DEFAULT,
: y& o" y* ^* Y, \5 z" k6 j DISPATCH_METHOD,
( A: Y6 n t9 m! n r% |. R- M &dp2,( R: i0 x; _3 f2 V# q- @$ C
&var,
8 |4 R) s% J+ }8 h: m7 Y &ei,
' g- o' A3 ^2 Y; o; A- x% { &uiErr);
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SysFreeString(topicStr);/ ~- `6 w. b- @4 Q+ u8 f
SysFreeString(itemStr);
& N4 a/ u0 A* O& {, z. D* e请问该程序是获得extend里面的哪个值？
3 _8 n; G6 p( B$ O) H1 i0 F0 \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？？？？ |
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发表于 2008-11-25 19:37:03
