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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:
u! K0 ^+ Y3 I4 W9 oName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
8 U; M& ?' _. _, ~( K" q IID_NULL, // reserved; ~; M: d: f( H( y# x8 l
&Name, // Array of names to get IDs for; a5 _$ B2 `# E3 C- k$ O4 W
1, // # of names in the array
& e6 w6 F7 e$ {- u6 l+ P LOCALE_SYSTEM_DEFAULT, // System locale! O/ s" ]6 u& h5 H. @% Z0 Y
&pokeID); // Array of IDs to fill on output
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: {$ ?8 I2 Q4 _- ` if (hr)
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MessageBox ("Get Poke Unsuccessful");
7 u: n1 d% W" {) w+ k7 [0 e return;9 Y3 s& I7 J1 x
}
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, u, ]. o: u8 l! r/**************************传递数据给extend**************************************/
$ n2 a0 G# X1 V, Q& r: K: {8 z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 t6 ?& g5 \& ~( l+ Y- I
2 O; R, C: C, d o valueStr = SysAllocString((WCHAR *) L"1232");
/ v2 Y' Z5 [, r. N VariantInit(&pokeVariant[0]); , y$ _# y6 W; r+ l
pokeVariant[0].vt = VT_BSTR;
N! e! x/ ^% y pokeVariant[0].bstrVal = valueStr;
- [2 z1 z# y9 F
]( t* N! V3 C" Z% w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, ^! _, N" j7 W# ]% r+ A
VariantInit(&pokeVariant[1]); 4 @3 b5 K; c0 n5 u
pokeVariant[1].vt = VT_BSTR;3 `$ y5 O1 c B, ?. d7 C9 d
pokeVariant[1].bstrVal = itemStr;
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' ]$ G8 t2 s& h' O# F topicStr = SysAllocString((WCHAR *) L"system");; E. u: x& e3 @! O3 H- b2 l8 R
VariantInit(&pokeVariant[2]); 1 A' E, T9 z- [! R6 _$ [
pokeVariant[2].vt = VT_BSTR;) g$ ?! f5 n6 E/ V; b+ v
pokeVariant[2].bstrVal = topicStr;5 g' D7 R: E* H" y7 o. I
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// Set the DISPPARAMS structure that holds the variant.
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) p% i$ w" y" c3 d dp.rgvarg = pokeVariant;% {0 ~$ V. y6 ~: t
dp.cArgs = 3;
5 V6 G7 V. `- U dp.rgdispidNamedArgs = NULL;& P! t, J# F/ c I/ V
dp.cNamedArgs = 0;
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# C O) b- [' C8 p4 t% L" Y// Call IDispatch::Invoke(). |- W' Y7 s! {. ^% n# w: k% i
+ k& W3 d& \5 \5 q0 L5 X# | hr = m_pDisp->Invoke(
. @, Y+ d$ ?* U pokeID,! }: K3 F2 W9 g# r2 h) a1 x# x3 n+ K# J
IID_NULL,
3 ~. } c2 `; W( Y, Q LOCALE_SYSTEM_DEFAULT,
! L7 g _/ i' q9 ? DISPATCH_METHOD,' V P. u% S7 g7 k6 `6 t
&dp,
, r5 m$ A4 `7 y$ H% } NULL,$ L9 {7 T/ M3 W
&ei,
0 [( j1 e X2 z7 ] &uiErr);
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5 ^5 p4 Q% c7 T# `' Z8 t3 ` SysFreeString(topicStr);
+ Q7 t; j6 u, N% P SysFreeString(itemStr);/ y u; Q& l; R0 w
SysFreeString(valueStr);
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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???
& R. T3 Q4 D2 z' v; ^) p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????
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2.这是request的程序
# s" G1 ^6 Z& u/ o// Request a value from Extend$ [! ?/ M/ p0 M% B) U
//
1 Y% b; n M+ n# D. q// Initialize the variant that will hold the BSTR. Set the variant's I& q- n$ \# |# h/ \* ~+ D
// type flag to indicate the fact that this variant holds a BSTR. Place the
/ T7 D d2 W7 M// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% J; K0 {5 l' d5 J# b
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- \2 u# l7 [; x$ _0 o8 ~$ O3 F" G
VariantInit(&requestVariant[0]);
: ]" V8 U9 b0 {, d1 B# \ requestVariant[0].vt = VT_BSTR;
9 O1 ~& n8 x/ W% W4 X requestVariant[0].bstrVal = itemStr;
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J; z- {9 H. n/ e( J! G' r topicStr = SysAllocString((WCHAR *) L"system");
+ q/ A3 j! T. b. X! S# n! b VariantInit(&requestVariant[1]);
. T! n' u* U: }6 {/ d! n0 u requestVariant[1].vt = VT_BSTR;# `& n/ ?9 y p0 k7 _
requestVariant[1].bstrVal = topicStr;5 e5 I# n, g" k+ k/ ~) ~
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// Set the DISPPARAMS structure that holds the variant.7 t; C2 [* B! n' P& {0 y b
2 ] f' J7 E6 d) B) N dp2.rgvarg = requestVariant;
' J1 o$ H, ]) C/ s: s dp2.cArgs = 2;/ q! L6 E6 B% \9 k
dp2.rgdispidNamedArgs = NULL;
& O/ T" }8 G: g: u7 J dp2.cNamedArgs = 0;8 b a" K9 m4 w" c# ?
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var.vt = VT_EMPTY;, _: J5 X, I* |/ Z! N1 Z5 n! H& Y
# C6 i: I$ B' @. B// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
( r( K- Y! v3 k* W requestID,( X& S. b- ]8 x0 Y* N' K
IID_NULL,
( s' m1 P' ?( `9 Q# V& `2 _ LOCALE_SYSTEM_DEFAULT,
/ ~7 H3 e# x0 J4 m0 ?8 L DISPATCH_METHOD,
' ] c7 z& W- j8 X# f- G) h- y &dp2,
" {# c1 x3 X0 W$ G2 u4 T6 F2 d &var,
; e7 U- U' L. R &ei, W4 f, a: I5 A5 b1 c
&uiErr);
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8 ?! b, i4 H5 y9 i. A, f SysFreeString(topicStr);
, L# }4 K4 o D0 p S" T6 i SysFreeString(itemStr);
# d( f1 x+ j2 x& j/ v请问该程序是获得extend里面的哪个值?- b8 d) w. N# `7 x6 ?
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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