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path: root/sysdata_windows.go
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Diffstat (limited to 'sysdata_windows.go')
-rw-r--r--sysdata_windows.go195
1 files changed, 128 insertions, 67 deletions
diff --git a/sysdata_windows.go b/sysdata_windows.go
index 3a6fc63..504b715 100644
--- a/sysdata_windows.go
+++ b/sysdata_windows.go
@@ -148,7 +148,9 @@ var (
)
func (s *sysData) make(window *sysData) (err error) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
ct := classTypes[s.ctype]
cid := _HMENU(0)
pwin := uintptr(_NULL)
@@ -195,7 +197,9 @@ func (s *sysData) make(window *sysData) (err error) {
uintptr(_WPARAM(controlFont)),
uintptr(_LPARAM(_TRUE)))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
return nil
}
@@ -207,7 +211,9 @@ var (
// ShowWindow(hwnd, nCmdShow);
// UpdateWindow(hwnd);
func (s *sysData) firstShow() error {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
_showWindow.Call(
uintptr(s.hwnd),
uintptr(nCmdShow))
@@ -215,28 +221,40 @@ func (s *sysData) firstShow() error {
if r1 == 0 { // failure
panic(fmt.Errorf("error updating window for the first time: %v", err))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
return nil
}
func (s *sysData) show() {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
_showWindow.Call(
uintptr(s.hwnd),
uintptr(_SW_SHOW))
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) hide() {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
_showWindow.Call(
uintptr(s.hwnd),
uintptr(_SW_HIDE))
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) setText(text string) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
ptext := toUTF16(text)
r1, _, err := _setWindowText.Call(
uintptr(s.hwnd),
@@ -244,7 +262,9 @@ func (s *sysData) setText(text string) {
if r1 == 0 { // failure
panic(fmt.Errorf("error setting window/control text: %v", err))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
// runs on uitask
@@ -263,23 +283,23 @@ func (s *sysData) setRect(x int, y int, width int, height int, winheight int) er
}
func (s *sysData) isChecked() bool {
- var b bool
-
- uitask(func() {
+ ret := make(chan bool)
+ defer close(ret)
+ uitask <- func() {
r1, _, _ := _sendMessage.Call(
uintptr(s.hwnd),
uintptr(_BM_GETCHECK),
uintptr(0),
uintptr(0))
- b = r1 == _BST_CHECKED
- })
- return b
+ ret <- r1 == _BST_CHECKED
+ }
+ return <-ret
}
-func (s *sysData) text() string {
- var str string
-
- uitask(func() {
+func (s *sysData) text() (str string) {
+ ret := make(chan string)
+ defer close(ret)
+ uitask <- func() {
var tc []uint16
r1, _, _ := _sendMessage.Call(
@@ -294,13 +314,15 @@ func (s *sysData) text() string {
uintptr(_WM_GETTEXT),
uintptr(_WPARAM(length)),
uintptr(_LPARAM(unsafe.Pointer(&tc[0]))))
- str = syscall.UTF16ToString(tc)
- })
- return str
+ ret <- syscall.UTF16ToString(tc)
+ }
+ return <-ret
}
func (s *sysData) append(what string) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
pwhat := toUTF16(what)
r1, _, err := _sendMessage.Call(
uintptr(s.hwnd),
@@ -312,11 +334,15 @@ func (s *sysData) append(what string) {
} else if r1 == uintptr(classTypes[s.ctype].selectedIndexErr) {
panic(fmt.Errorf("failed to add item to combobox/listbox (last error: %v)", err))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) insertBefore(what string, index int) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
pwhat := toUTF16(what)
r1, _, err := _sendMessage.Call(
uintptr(s.hwnd),
@@ -328,7 +354,9 @@ func (s *sysData) insertBefore(what string, index int) {
} else if r1 == uintptr(classTypes[s.ctype].selectedIndexErr) {
panic(fmt.Errorf("failed to add item to combobox/listbox (last error: %v)", err))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
// runs on uitask
@@ -345,12 +373,12 @@ func (s *sysData) doSelectedIndex() int {
}
func (s *sysData) selectedIndex() int {
- var i int
-
- uitask(func() {
- i = s.doSelectedIndex()
- })
- return i
+ ret := make(chan int)
+ defer close(ret)
+ uitask <- func() {
+ ret <- s.doSelectedIndex()
+ }
+ return <-ret
}
// runs on uitask
@@ -387,20 +415,20 @@ func (s *sysData) doSelectedIndices() []int {
}
func (s *sysData) selectedIndices() []int {
- var i []int
-
- uitask(func() {
- i = s.doSelectedIndices()
- })
- return i
+ ret := make(chan []int)
+ defer close(ret)
+ uitask <- func() {
+ ret <- s.doSelectedIndices()
+ }
+ return <-ret
}
func (s *sysData) selectedTexts() []string {
- var strings []string
-
- uitask(func() {
+ ret := make(chan []string)
+ defer close(ret)
+ uitask <- func() {
indices := s.doSelectedIndices()
- strings = make([]string, len(indices))
+ strings := make([]string, len(indices))
for i, v := range indices {
r1, _, err := _sendMessage.Call(
uintptr(s.hwnd),
@@ -421,12 +449,15 @@ func (s *sysData) selectedTexts() []string {
}
strings[i] = syscall.UTF16ToString(str)
}
- })
- return strings
+ ret <- strings
+ }
+ return <-ret
}
func (s *sysData) setWindowSize(width int, height int) error {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
var rect _RECT
r1, _, err := _getClientRect.Call(
@@ -441,12 +472,16 @@ func (s *sysData) setWindowSize(width int, height int) error {
if err != nil {
panic(fmt.Errorf("error actually resizing window: %v", err))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
return nil
}
func (s *sysData) delete(index int) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
r1, _, err := _sendMessage.Call(
uintptr(s.hwnd),
uintptr(classTypes[s.ctype].deleteMsg),
@@ -455,11 +490,15 @@ func (s *sysData) delete(index int) {
if r1 == uintptr(classTypes[s.ctype].selectedIndexErr) {
panic(fmt.Errorf("failed to delete item from combobox/listbox (last error: %v)", err))
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) setIndeterminate() {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
r1, _, err := _setWindowLongPtr.Call(
uintptr(s.hwnd),
negConst(_GWL_STYLE),
@@ -473,7 +512,9 @@ func (s *sysData) setIndeterminate() {
uintptr(_WPARAM(_TRUE)),
uintptr(0))
s.isMarquee = true
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) setProgress(percent int) {
@@ -481,7 +522,9 @@ func (s *sysData) setProgress(percent int) {
s.setIndeterminate()
return
}
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
if s.isMarquee {
// turn off marquee before switching back
_sendMessage.Call(
@@ -517,13 +560,15 @@ func (s *sysData) setProgress(percent int) {
if percent == 100 {
send(_PBM_SETRANGE32, 0, 100)
}
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) len() int {
- var i int
-
- uitask(func() {
+ ret := make(chan int)
+ defer close(ret)
+ uitask <- func() {
r1, _, err := _sendMessage.Call(
uintptr(s.hwnd),
uintptr(classTypes[s.ctype].lenMsg),
@@ -532,33 +577,43 @@ func (s *sysData) len() int {
if r1 == uintptr(classTypes[s.ctype].selectedIndexErr) {
panic(fmt.Errorf("unexpected error return from sysData.len(); GetLastError() says %v", err))
}
- i = int(r1)
- })
- return i
+ ret <- int(r1)
+ }
+ return <-ret
}
func (s *sysData) setAreaSize(width int, height int) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
_sendMessage.Call(
uintptr(s.hwnd),
uintptr(msgSetAreaSize),
uintptr(width), // WPARAM is UINT_PTR on Windows XP and newer at least, so we're good with this
uintptr(height))
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) repaintAll() {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
_sendMessage.Call(
uintptr(s.hwnd),
uintptr(msgRepaintAll),
uintptr(0),
uintptr(0))
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) center() {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
var ws _RECT
r1, _, err := _getWindowRect.Call(
@@ -576,11 +631,15 @@ func (s *sysData) center() {
wx := (int32(dw) / 2) - (ww / 2)
wy := (int32(dh) / 2) - (wh / 2)
s.setRect(int(wx), int(wy), int(ww), int(wh), 0)
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
func (s *sysData) setChecked(checked bool) {
- uitask(func() {
+ ret := make(chan struct{})
+ defer close(ret)
+ uitask <- func() {
c := uintptr(_BST_CHECKED)
if !checked {
c = uintptr(_BST_UNCHECKED)
@@ -590,5 +649,7 @@ func (s *sysData) setChecked(checked bool) {
uintptr(_BM_SETCHECK),
c,
uintptr(0))
- })
+ ret <- struct{}{}
+ }
+ <-ret
}
generated by cgit v1.2.3 (git 2.51.0) at 2025-11-06 03:26:14 +0000