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：" A! P& R3 M3 E* }
Name = (WCHAR *) L"Poke"; 6 C; d" z% b' Q! F. T# V' Z4 F $ n) a; _* d: T( B* m
hr = m_pDisp->GetIDsOfNames (- K3 @! Z% Q. X% E7 y
IID_NULL, // reserved ' V$ X ?/ U1 J! k& Q# c" f' k: K- M &Name, // Array of names to get IDs for1 u& N" b$ F8 u4 [' k: c A' W
1, // # of names in the array4 m/ m4 j: |7 _) `6 F0 _
LOCALE_SYSTEM_DEFAULT, // System locale3 _0 `) p. L! [8 W0 G( W% f6 `
&pokeID); // Array of IDs to fill on output3 x! z+ w. V# `4 ?$ X" Q- z& [6 Z3 F
, p' }% d, F: w2 ]- [% D( M if (hr)! l* C$ d. d8 [0 Q# E2 I3 l
{ & p9 }; S2 {1 O4 R MessageBox ("Get Poke Unsuccessful"); ) \9 M# \3 h8 m2 {- S5 W return; ' v' L; p' m0 X, i0 f6 z& j9 G } 2 Q0 v( _" z* F- T& g/ R* f) \; u' X$ }6 @) x2 [0 K
/**************************传递数据给extend**************************************/7 ^9 L' q( Z2 W9 K' j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* j" c$ U$ v) J F: p
- b# d2 z& y$ N7 Q( y valueStr = SysAllocString((WCHAR *) L"1232"); - N" F5 S/ w% R) a2 D" S# P* Y0 X VariantInit(&pokeVariant[0]); 6 A9 L2 [# A* h" V) l
pokeVariant[0].vt = VT_BSTR;. q6 ]) v+ P9 Q% r8 e
pokeVariant[0].bstrVal = valueStr; . @# Z9 m' n8 X3 t' } Q 1 G M4 G3 f* y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 \2 ]. j2 P' k4 { VariantInit(&pokeVariant[1]); / A) u& F& t# l" L& p1 g6 L pokeVariant[1].vt = VT_BSTR;. z( ]# z7 l: g' J6 r J. ]* s
pokeVariant[1].bstrVal = itemStr; ( B5 F: O0 ~$ F6 ^! g! [$ I - s4 h. X3 ^- W; @; h topicStr = SysAllocString((WCHAR *) L"system"); 7 u- u1 c5 C% k0 \9 G8 Y VariantInit(&pokeVariant[2]); ) t- z& ?7 Y$ W pokeVariant[2].vt = VT_BSTR;7 y4 @1 B, |+ A
pokeVariant[2].bstrVal = topicStr; - w6 w+ B; V9 H, l- ^" a3 b% `: d7 e* b2 G# r' A3 o. i
// Set the DISPPARAMS structure that holds the variant. + q2 l# A$ |1 V% x3 Y1 U/ l. |6 @6 Z6 e% ]; ?
dp.rgvarg = pokeVariant;, @( F4 Q% M2 n! N9 V
dp.cArgs = 3; 0 F7 a- {. T; f J& K0 v+ G) W dp.rgdispidNamedArgs = NULL;, d/ A5 c0 P1 V6 K
dp.cNamedArgs = 0; ; V% Z6 h+ v" D0 E * l( T2 \1 E! K6 T8 v1 V// Call IDispatch::Invoke() & A- K9 \( U7 R; ^6 b# w3 A" ^7 M7 q
hr = m_pDisp->Invoke( # z% F* y1 f: W* ]5 ]$ ?' ` pokeID, ! n8 O; W* }" K IID_NULL, * {; L4 p* A% l) g5 c LOCALE_SYSTEM_DEFAULT, 6 u9 ~$ E9 L' R! B( L$ B DISPATCH_METHOD,. Z5 p4 S, `! k) H! u
&dp, 8 c% J" [7 p% W- ?& ^+ t$ u NULL, # A( t; Q; \; b, w &ei, 6 q/ ]# s( L3 f &uiErr);; M" i7 z; h7 P, a5 C
L6 U. Y9 [3 a, V7 j SysFreeString(topicStr); . h" p+ q4 h5 y6 T: \. _ SysFreeString(itemStr);7 {) O1 S: K0 _+ ~! S
SysFreeString(valueStr); 8 s3 v1 q; Q$ g, A" t& \ 7 V l" B1 Z: b7 Y7 X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？？？ 5 B/ U7 x! E% a& Y% A. v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？？？？ 4 e: @# K: W5 Z . W8 `) r. ]2 y" h {" l$ G4 c4 F; n$ l* F
2.这是request的程序2 O/ Q3 ?7 ~+ f5 K1 |1 O- ^5 r
// Request a value from Extend) f. Y# i+ L* Y3 P) J0 Z
//& S5 }0 I# Y, O" l
// Initialize the variant that will hold the BSTR. Set the variant's. |2 u( }# z4 S3 M0 K' D
// type flag to indicate the fact that this variant holds a BSTR. Place the , e/ Z w& G1 X: a D; p// BSTR into the variant structure. 0 g, c5 n" d% S# {$ g# t) y / g/ N$ L7 |' v2 b2 R* |5 Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 |6 `- Z0 u$ U/ @# v 7 g0 x& b& M9 ?. [, ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 Y8 `% _* Q$ E; @/ F VariantInit(&requestVariant[0]); R0 A) N9 _, c) h% q
requestVariant[0].vt = VT_BSTR;$ Y+ _( ~4 ?6 `; N( h
requestVariant[0].bstrVal = itemStr; 8 E0 B5 E# [. q; x 3 S& X% O( o, a. Y7 Q topicStr = SysAllocString((WCHAR *) L"system");: y: j5 L- o4 V4 t) _; H
VariantInit(&requestVariant[1]); % [: L! J5 @, V _ } L1 W( T
requestVariant[1].vt = VT_BSTR;" S0 t6 q* ~9 h# K+ [, _3 w
requestVariant[1].bstrVal = topicStr; . D! K6 T8 |3 V$ y. B8 A# l$ y 0 p" Y* @2 P' V0 E3 \: z$ f6 r( e// Set the DISPPARAMS structure that holds the variant.6 W$ V- ~ e$ v/ O4 e
( b; s; j4 h( k, G* R
dp2.rgvarg = requestVariant; 9 y6 X/ l9 J4 s dp2.cArgs = 2;- w6 \9 L) }/ z3 z! o" W
dp2.rgdispidNamedArgs = NULL; , t4 I1 [( r1 m- i3 W8 R! {5 j5 W dp2.cNamedArgs = 0; , d8 u2 j0 q/ U8 o7 n5 m% t# u1 q7 H; |, r; J( W
var.vt = VT_EMPTY; $ n6 A3 ^# _, h1 F$ Z2 g: i2 O9 Q5 B5 R9 j
// Call IDispatch::Invoke() 0 o+ q) ?. r0 z2 S) v! _& b: S5 z2 P
hr = m_pDisp->Invoke() a S/ D+ m- v% c, i
requestID,; b8 c$ ~, N: K* _3 t7 \# s+ y1 S
IID_NULL,) M$ b5 A2 i$ E+ |
LOCALE_SYSTEM_DEFAULT,$ Y% q) B( a3 ^7 `: m) n$ r0 N: L3 y
DISPATCH_METHOD,: D$ o) K, \' b
&dp2,; s+ j' ^& B7 c0 I! m/ B
&var,+ C2 _9 c- N! v* A/ \% G; J) r( D, v
&ei,$ F. c) X0 Y) `: j6 A
&uiErr);+ q {5 g& P* ~3 S* i) ?+ S
7 K0 h4 E q) W
SysFreeString(topicStr);3 y: w; R, x1 m! Y( e/ }- A
SysFreeString(itemStr); 3 W- {5 {& ]$ F \9 w1 k请问该程序是获得extend里面的哪个值？- R- O& F% I1 i2 ^+ O3 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？？？？
发表于 2008-11-25 19:37:03
