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mainloop_default.go
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/
mainloop_default.go
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// Copyright 2019 The Walk Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows,!walk_use_cgo
package walk
import (
"unsafe"
"github.com/lxn/win"
)
func (fb *FormBase) mainLoop() int {
msg := (*win.MSG)(unsafe.Pointer(win.GlobalAlloc(0, unsafe.Sizeof(win.MSG{}))))
defer win.GlobalFree(win.HGLOBAL(unsafe.Pointer(msg)))
for fb.hWnd != 0 {
switch win.GetMessage(msg, 0, 0, 0) {
case 0:
return int(msg.WParam)
case -1:
return -1
}
switch msg.Message {
case win.WM_KEYDOWN:
if fb.handleKeyDown(msg) {
continue
}
}
if !win.IsDialogMessage(fb.hWnd, msg) {
win.TranslateMessage(msg)
win.DispatchMessage(msg)
}
fb.group.RunSynchronized()
}
return 0
}