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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
package moe.yuuta.aero
import aero.*
import kotlinx.cinterop.*
import platform.windows.*
fun main() {
SetProcessDPIAware()
val hInstance = GetModuleHandleA(null)
val className = "Main Window Class"
memScoped {
val wc = cValue<WNDCLASSA> {
lpfnWndProc = staticCFunction(::windowProc)
this.hInstance = hInstance
lpszClassName = className.cstr.ptr
}
RegisterClassA(wc.ptr)
return@memScoped wc
}
val hwnd = CreateWindowExA(
0.convert(),
className,
"", // Filling texts will get the white background of the label
WS_OVERLAPPEDWINDOW.convert(),
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
null,
null,
hInstance,
null
)
val forceDialogEnv = memScoped {
val buffer = nativeHeap.allocArray<CHARVar>(MAX_PATH)
GetEnvironmentVariableA("AERO_DEMO_FORCE_DIALOG",
buffer,
MAX_PATH
)
val env = buffer.toKString()
nativeHeap.free(buffer)
return@memScoped env
}
if (hwnd == null || (forceDialogEnv == "true")) {
if (hwnd == null) {
MessageBoxA(null,
"The system returns an empty dialog (${GetLastError()})",
"Aero",
(MB_OK or MB_ICONERROR).convert())
}
memScoped {
// Fallback
val dlgImpl = cValue<DLGTEMPLATE> {
style = (WS_OVERLAPPEDWINDOW or
DS_CENTER or
DS_MODALFRAME).convert()
dwExtendedStyle = 0.convert()
cdit = 0.convert()
x = 0
y = 0
cx = 400
cy = 200
}
return@memScoped DialogBoxIndirectParamW(hInstance,
dlgImpl.ptr,
null,
staticCFunction(::dlgProc),
0)
}
} else {
val nCmdShow = memScoped {
val startUpInfo = nativeHeap.alloc<_STARTUPINFOA>()
GetStartupInfoA(startUpInfo.ptr)
val nCmdShow = startUpInfo.wShowWindow
nativeHeap.free(startUpInfo)
return@memScoped nCmdShow.convert<Int>()
}
ShowWindow(hwnd, nCmdShow)
msgLoop()
}
}
fun msgLoop() {
memScoped {
val msg = nativeHeap.alloc<MSG>()
while (GetMessageA(msg.ptr,
null,
0.convert(),
0.convert()) != 0) {
TranslateMessage(msg.ptr)
DispatchMessageA(msg.ptr)
}
// The queue quits
nativeHeap.free(msg)
}
}
fun windowProc(hwnd: HWND?,
uMsg: UINT,
wParam: WPARAM,
lParam: LPARAM): LRESULT {
return when (uMsg.convert<Int>()) {
WM_CREATE -> {
setAero(hwnd)
1
}
WM_DESTROY -> {
PostQuitMessage(0)
1
}
WM_PAINT -> {
val ps = nativeHeap.alloc<PAINTSTRUCT>()
val hdc = BeginPaint(hwnd, ps.ptr)
FillRect(hdc,
ps.rcPaint.ptr,
GetStockObject(BLACK_BRUSH) as HBRUSH)
EndPaint(hwnd, ps.ptr)
nativeHeap.free(ps)
1
}
else -> {
DefWindowProcA(hwnd, uMsg, wParam, lParam)
}
}
}
fun dlgProc(hDlg: HWND?,
message: UINT,
wParam: WPARAM,
lParam: LPARAM): INT_PTR {
when (message.convert<Int>()) {
WM_INITDIALOG -> {
setAero(hDlg)
return true.toByte().toLong()
}
WM_COMMAND -> {
EndDialog(hDlg, wParam.convert())
return true.toByte().toLong()
}
WM_CTLCOLORDLG -> {
return GetStockObject(BLACK_BRUSH).rawValue.toLong()
}
else -> {
return false.toByte().toLong()
}
}
}
fun setAero(hwnd: HWND?) {
val hUser = GetModuleHandleW("user32.dll") ?: return
val setWindowCompositionAttribute = GetProcAddress(hUser,
"SetWindowCompositionAttribute")
as pfnSetWindowCompositionAttribute? ?: return
val accent = cValue<ACCENT_POLICY> {
AccentState = ACCENT_ENABLE_BLURBEHIND
AccentFlags = 0.convert()
GradientColor = 0.convert()
AnimationId = 0.convert()
}
memScoped {
val data = cValue<WINDOWCOMPOSITIONATTRIBDATA> {
Attrib = WCA_ACCENT_POLICY
pvData = accent.ptr
cbData = accent.size.convert()
}
setWindowCompositionAttribute(hwnd, data.ptr)
}
}
|