blob: 56c2a841d07db9cc0b50280cfc011c57c7391ff2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
-- File: WNT_WClass.cdl
-- Created: Fri Jan 26 14:13:05 1996
-- Author: PLOTNIKOV Eugeny
-- <eugeny@proton>
---Copyright: Matra Datavision 1996
class WClass from WNT inherits TShared from MMgt
---Purpose: This class defines a Windows NT window class.
-- A window in Windows NT is always created based on a
-- window class. The window class identifies the window
-- procedure that processes messages to the window. Each
-- window class has unique name ( character string ). More
-- than one window can be created based on a single window
-- class. For example, all button windows in Windows NT
-- are created based on the same window class. The window
-- class defines the window procedure and some other
-- characteristics ( background, mouse cursor shape etc. )
-- of the windows that are created based on that class.
-- When we create a window, we define additional
-- characteristics of the window that are unique to that
-- window. So, we have to create and register window
-- class before creation of any window. Of course, it's possible
-- to create a new window class for each window inside
-- the Window class and do not use the WClass at all.
-- We implemented this class for sake of flexibility of
-- event processing.
uses
Uint from WNT,
Handle from Aspect
raises
ClassDefinitionError from WNT
is
Create (
aClassName : CString from Standard;
aWndProc : Address from Standard;
aStyle : Uint from WNT;
aClassExtra : Integer from Standard = 0;
aWindowExtra : Integer from Standard = 0;
aCursor : Handle from Aspect = 0;
anIcon : Handle from Aspect = 0;
aMenuName : CString from Standard = 0
)
returns mutable WClass from WNT
---Level: Public
---Purpose: Creates a Windows NT window class and registers it.
---Trigger: Raises if class registration failed.
raises ClassDefinitionError from WNT;
Destroy ( me : mutable )
is virtual;
---Level: Public
---Purpose: Destroys all resources attached to the class
---C++: alias ~
----------------------------
-- Category: Inquire methods
----------------------------
WndProc ( me ) returns Address from Standard;
---Level: Public
---Purpose: Returns address of window procedure.
---C++: inline
Name ( me ) returns CString from Standard;
---Level: Public
---Purpose: Returns a class name.
---C++: inline
Instance ( me ) returns Handle from Aspect;
---Level: Public
---Purpose: Returns a program instance handle.
---C++: inline
fields
lpszName : CString from Standard is protected;
hInstance : Handle from Aspect is protected;
lpfnWndProc : Address from Standard is protected;
friends
class Window from WNT
end WClass;
|
