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:- x4 ?0 O+ a2 D
Name = (WCHAR *) L"Poke";2 c7 @ v( o0 }/ q# O$ ]
' H. K) G) P: Z8 N6 `7 e hr = m_pDisp->GetIDsOfNames (
. o l1 ?& B$ u0 {/ ^ IID_NULL, // reserved
/ E' |1 M4 T. X9 w1 O &Name, // Array of names to get IDs for
& h2 c/ K. p- K* W! A5 u8 n2 s 1, // # of names in the array" @7 ]* M2 N' c |
LOCALE_SYSTEM_DEFAULT, // System locale
- _. V% L' X9 p+ m1 Y &pokeID); // Array of IDs to fill on output2 F* c3 y9 f% T$ S9 X. V& Q
' b5 B4 U7 Y8 \; d: u- K if (hr)4 F$ k- }' j5 T! e
{" k1 y! i" F# \0 L$ s! i
MessageBox ("Get Poke Unsuccessful");6 w6 ~( a" I+ C* {. ?
return;8 L% O6 x6 F* S% X8 y0 _, F& b
}
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( F6 C& ^" F- E$ t /**************************传递数据给extend**************************************/7 n3 Z5 h8 H7 W! v( z! r: D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& [6 S: B1 Q+ }
2 X# _+ g' }, J! [ valueStr = SysAllocString((WCHAR *) L"1232");
0 f& |0 ?6 }5 t VariantInit(&pokeVariant[0]); : Y4 \' |( F& d5 h
pokeVariant[0].vt = VT_BSTR;
6 E z2 b; b9 D pokeVariant[0].bstrVal = valueStr;1 _; K L5 d: _
) [! X% @5 M. X* r: _$ b9 g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
* \ ]6 Q0 ]' V4 W Y% F) q VariantInit(&pokeVariant[1]);
- f! r* {7 p6 M pokeVariant[1].vt = VT_BSTR;5 D) M& |* Z7 r' P! M! _
pokeVariant[1].bstrVal = itemStr;: e2 g4 I0 `8 i5 T5 P
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topicStr = SysAllocString((WCHAR *) L"system");
: H5 n1 M3 k, K: p1 m! N VariantInit(&pokeVariant[2]); % A7 ^4 K% I3 l9 v
pokeVariant[2].vt = VT_BSTR;) W9 v G8 i* N8 j, p1 B" z
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
. ], t: ?: Y% J. ?; { dp.cArgs = 3;) i. M4 o- B/ ~
dp.rgdispidNamedArgs = NULL;
0 G0 l" x8 r+ n7 Y& l dp.cNamedArgs = 0;
4 }$ Q* l& R6 P# z
5 Q5 e* N& H$ e5 j9 a // Call IDispatch::Invoke()7 P5 t5 M* e0 P! h& K
; G! O9 j, I% v hr = m_pDisp->Invoke(4 ]# z# Q/ s8 u Q1 H# @8 b2 F
pokeID,
% N( k! t2 Q+ H" ]! z2 v+ c/ u: p8 \ IID_NULL,
; }. g8 W! ~. o5 x LOCALE_SYSTEM_DEFAULT,
; P0 i" V4 H+ ]9 N \6 T( u1 E+ |0 o DISPATCH_METHOD,
5 e1 R2 F# @$ x& ` &dp,
/ F% s( l; H# y, V* f0 q# P NULL,- C2 }" n; w, j1 t
&ei,
M4 n9 T# E" G9 v' ]* C &uiErr); Q4 ?; G7 \" x/ j
- r, ^9 }: z$ A9 v r SysFreeString(topicStr);+ K* [8 `5 V; D
SysFreeString(itemStr);
" V1 m- C3 @6 a; I# b+ q SysFreeString(valueStr);9 G! l9 ^4 |# B* g# M( c
4 ~" W& T7 j$ f) X3 G2 E1 B 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???8 Y) W$ Z; A2 E. ]
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
* {9 Y4 f3 J8 ? r // Request a value from Extend3 ^, A1 G4 K5 R! B# R' ^, L3 u; l: ?
//
2 f$ I8 D: A$ W# |3 l- ~( a! W6 [ // Initialize the variant that will hold the BSTR. Set the variant's
! F8 U$ c) z& H2 F) W e // type flag to indicate the fact that this variant holds a BSTR. Place the9 ^1 t# ~: s; F6 k
// BSTR into the variant structure.
F: _5 v7 F3 f J3 W - w' Z5 ~( v" n3 R+ A1 B: J5 }& g$ R
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 d4 L1 \* e7 }3 ~7 n
* W' J! f$ _5 P4 R* V, T8 z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
7 j9 p# o( ?- ]5 o$ f VariantInit(&requestVariant[0]); 3 E. b' s" V9 K+ P* D
requestVariant[0].vt = VT_BSTR;
% D' z. C+ w5 f' h8 A- n requestVariant[0].bstrVal = itemStr;
: W. J7 n8 C3 ?: [: @) B) N
1 k5 ?! ?- }" g topicStr = SysAllocString((WCHAR *) L"system");
% ~! i. m4 A" x+ \% | P VariantInit(&requestVariant[1]); % v% |0 }" o4 B) [4 f9 }' F, i
requestVariant[1].vt = VT_BSTR;
" k" R! a/ ?* r* k/ b e! U requestVariant[1].bstrVal = topicStr;# |" A. z* L+ y, K* M
9 Q1 O3 |# y0 c' m1 n( ~2 q // Set the DISPPARAMS structure that holds the variant.4 q# x: u; d2 W J, x
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dp2.rgvarg = requestVariant;
) Y0 x p: L9 q- H0 @& | dp2.cArgs = 2;
4 B5 M, N8 @) L dp2.rgdispidNamedArgs = NULL; S/ y4 o1 r$ ~( \( L( Z6 {
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
& U6 }; g: z% G7 h# l n
& W! U) a5 z. x$ [ // Call IDispatch::Invoke()
4 H: F( i! C( v z5 E6 z* U ( |! S1 z: Z& \, ]/ {. {
hr = m_pDisp->Invoke(
5 s" O9 E% X! U5 V requestID,
4 ~# U. g1 _& _: B# D IID_NULL,
# ^: D0 @2 C' \' s8 E LOCALE_SYSTEM_DEFAULT,. {' L3 O$ D& f Y p" B' {5 ~( ]
DISPATCH_METHOD,/ d0 w+ Z0 U) b, S# r: y1 [
&dp2, s* j' V0 ]5 i& U! B# w- i
&var,
" P7 q& [$ w/ T) q/ m0 ^ &ei,
# F" H, r! Y4 o# f8 s &uiErr); h$ V! L# G t# x# u' q$ E
- S. H5 l4 e. D3 h( } SysFreeString(topicStr);
! l/ [/ G2 R7 L; ^ SysFreeString(itemStr);) L4 u: L; n1 ^
请问该程序是获得extend里面的哪个值?
6 l$ |$ R: A7 y 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