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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:8 {" [4 ]/ ?; ^+ y" N
Name = (WCHAR *) L"Poke";
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8 `; b5 Y# }8 o( ~ Z hr = m_pDisp->GetIDsOfNames (
8 @1 I3 V G5 B$ L3 F/ E/ e9 }5 _ IID_NULL, // reserved3 T7 ?9 e! K$ S7 d0 [
&Name, // Array of names to get IDs for# N& p Q0 G8 @; A$ E/ H! s
1, // # of names in the array
& @2 Q: k4 L Q4 b5 Q3 T+ R7 u LOCALE_SYSTEM_DEFAULT, // System locale& ^) w; E. H/ |4 A a: U1 q$ h
&pokeID); // Array of IDs to fill on output: Y8 \& ~+ v( s9 l+ y2 S
. L# ?# t" e% C+ q" H if (hr)/ j0 p/ o6 }% G4 T) L. k
{
4 Z% K! `6 U* E* k/ O$ I MessageBox ("Get Poke Unsuccessful");. J: b5 N6 u# [/ \6 m ]! Q
return;1 k- m+ {3 U+ I( W7 |; E
}
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( k5 D/ v. y- x/ l+ N+ p/**************************传递数据给extend**************************************/8 p7 @$ y- j5 H" V4 o+ C- ?* ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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# Q- I6 z8 N; X y valueStr = SysAllocString((WCHAR *) L"1232");& q u. p; ~: x0 U: D L
VariantInit(&pokeVariant[0]); % Z% c; W5 E. Q8 s4 J
pokeVariant[0].vt = VT_BSTR;" M% v7 [: A, v+ n
pokeVariant[0].bstrVal = valueStr;7 M F, g+ w3 g8 c; G7 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 K0 w. o# ~: Q1 ?* z' h1 S VariantInit(&pokeVariant[1]); $ x- J. M* `+ n. G
pokeVariant[1].vt = VT_BSTR;
. E8 O. y9 T( A2 V4 m, J pokeVariant[1].bstrVal = itemStr;
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4 c D, l: z% t- R- x6 O topicStr = SysAllocString((WCHAR *) L"system");# d8 i3 S# Z$ @* X8 v" a2 H/ M
VariantInit(&pokeVariant[2]);
, E- c) I' _( e- F pokeVariant[2].vt = VT_BSTR;
: J5 S' e! I0 F4 E; P+ H: `5 l8 l pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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# D# X9 A1 q) ^% J( S0 _ dp.rgvarg = pokeVariant;
& Y) |! r% N- M- A dp.cArgs = 3;
) Z8 z: { V) o. g4 n0 a dp.rgdispidNamedArgs = NULL;# X1 |- n2 A' V/ Q7 ^2 T
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke(): _7 V6 y `8 y% S; b0 T
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hr = m_pDisp->Invoke(
( S, B+ f" k7 c0 ]7 W4 N( t pokeID,. }0 b" {- A Q+ A) j' q2 {
IID_NULL,- z( M1 ?/ C% Z1 z1 a- `. _( A& x, F
LOCALE_SYSTEM_DEFAULT,: I7 I2 F1 {* f/ C
DISPATCH_METHOD,
3 s7 I3 J, J, y/ @. R @ &dp,) S4 |' s! G9 H' K! A* V
NULL,6 M J1 [: v5 a) V0 W5 ^
&ei,
, o }. r* f# P4 w. X &uiErr);8 J- T2 b& s4 O5 o6 o4 E
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SysFreeString(topicStr);
9 U- V' w; g7 | SysFreeString(itemStr);
6 ]+ U. @0 Z8 s+ W SysFreeString(valueStr);
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& A3 n6 l$ u4 U/ B. g0 P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??? k% d9 ^$ J3 I; [
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????* c; T/ v0 Z) W( g5 y" [3 V
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2.这是request的程序
" |) I# ~( e; i+ w// Request a value from Extend& n: i- F1 I9 c5 u- c
//
. {9 k, G# S1 M W# T- a8 `// Initialize the variant that will hold the BSTR. Set the variant's1 Y! G" b6 V3 F5 \# H. s- x
// type flag to indicate the fact that this variant holds a BSTR. Place the d) W! ~$ x# m# o0 D! B
// BSTR into the variant structure. K" _: n) L7 y( [3 Z: {0 ]
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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+ q o) R4 B& p. j/ }& _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" o" ~ K* N# k! ?% L
VariantInit(&requestVariant[0]);
$ ?$ k0 I1 e; R' z9 g! o5 k7 p requestVariant[0].vt = VT_BSTR;% p! q( l0 T; f1 |! Y# [% o
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system"); f% d' R# S; u7 }# h
VariantInit(&requestVariant[1]); * j) K9 ^& A7 ?6 e4 A
requestVariant[1].vt = VT_BSTR;# d5 O; S& }6 w! i$ n1 t
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;# p. ]# [. G9 h% Y
dp2.cArgs = 2;
7 D5 ?: R$ E3 k5 S dp2.rgdispidNamedArgs = NULL; C0 n( C7 p' i1 e! h) z; Y
dp2.cNamedArgs = 0;) E- M6 y6 f+ C( o
2 h4 B R0 P! H I+ S/ D var.vt = VT_EMPTY;! `0 s: X" W7 g+ J
' e. R7 k; H% n9 w* v+ @, o5 a" D8 t% k// Call IDispatch::Invoke()) P# X5 e3 y5 d# q% E3 b* M* K$ x
( J2 n) _7 l9 ]( y) E hr = m_pDisp->Invoke(
) G' v1 p% z4 S8 {. D/ W( ? ~/ x requestID,
C6 B5 y' h; m) g3 v1 N. H0 G6 s9 H, i IID_NULL,1 ? u- ^# S4 v1 ?( J$ C* g
LOCALE_SYSTEM_DEFAULT,+ e8 c5 v' B$ U. r) X
DISPATCH_METHOD,6 Q2 e3 {; \4 i- i
&dp2,
$ `, t, o! t# a8 T: n. S i4 X5 H1 ? &var,3 U' F# Y/ G) @* k4 F
&ei,
4 B4 ^, V+ K8 Y- r' { &uiErr);
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SysFreeString(topicStr);
# ~& t9 b3 l: c; b6 w9 ^& J' W, n k, y' e SysFreeString(itemStr);
. b3 {4 s" D* x# |7 n5 I请问该程序是获得extend里面的哪个值?
8 z, H, b' |, N& J* d/ y% T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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