windows: add window handle related system calls
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enumwindows
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enumchildwindows
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getclassnamew
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdesktopwindow
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getforegroundwindow
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-iswindow
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-iswindowunicode
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-iswindowvisible
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getguithreadinfo
Change-Id: I21fbf47e1f459e86503e0e876b44cf47c98b2aa0
GitHub-Last-Rev: 242b79ffb8cbfe7b3359e35379fa3227a70fc0f1
GitHub-Pull-Request: golang/sys#122
Reviewed-on: https://go-review.googlesource.com/c/sys/+/399134
Auto-Submit: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
index e279138..996cc53 100644
--- a/windows/syscall_windows.go
+++ b/windows/syscall_windows.go
@@ -364,6 +364,15 @@
//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
//sys GetActiveProcessorCount(groupNumber uint16) (ret uint32)
//sys GetMaximumProcessorCount(groupNumber uint16) (ret uint32)
+//sys EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows
+//sys EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) = user32.EnumChildWindows
+//sys GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) = user32.GetClassNameW
+//sys GetDesktopWindow() (hwnd HWND) = user32.GetDesktopWindow
+//sys GetForegroundWindow() (hwnd HWND) = user32.GetForegroundWindow
+//sys IsWindow(hwnd HWND) (isWindow bool) = user32.IsWindow
+//sys IsWindowUnicode(hwnd HWND) (isUnicode bool) = user32.IsWindowUnicode
+//sys IsWindowVisible(hwnd HWND) (isVisible bool) = user32.IsWindowVisible
+//sys GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) = user32.GetGUIThreadInfo
// Volume Management Functions
//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW
diff --git a/windows/types_windows.go b/windows/types_windows.go
index f9eaca5..ef489f5 100644
--- a/windows/types_windows.go
+++ b/windows/types_windows.go
@@ -3213,3 +3213,22 @@
}
const ALL_PROCESSOR_GROUPS = 0xFFFF
+
+type Rect struct {
+ Left int32
+ Top int32
+ Right int32
+ Bottom int32
+}
+
+type GUIThreadInfo struct {
+ Size uint32
+ Flags uint32
+ Active HWND
+ Focus HWND
+ Capture HWND
+ MenuOwner HWND
+ MoveSize HWND
+ CaretHandle HWND
+ CaretRect Rect
+}
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index 52d4742..6c6f27b 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -444,9 +444,18 @@
procCommandLineToArgvW = modshell32.NewProc("CommandLineToArgvW")
procSHGetKnownFolderPath = modshell32.NewProc("SHGetKnownFolderPath")
procShellExecuteW = modshell32.NewProc("ShellExecuteW")
+ procEnumChildWindows = moduser32.NewProc("EnumChildWindows")
+ procEnumWindows = moduser32.NewProc("EnumWindows")
procExitWindowsEx = moduser32.NewProc("ExitWindowsEx")
+ procGetClassNameW = moduser32.NewProc("GetClassNameW")
+ procGetDesktopWindow = moduser32.NewProc("GetDesktopWindow")
+ procGetForegroundWindow = moduser32.NewProc("GetForegroundWindow")
+ procGetGUIThreadInfo = moduser32.NewProc("GetGUIThreadInfo")
procGetShellWindow = moduser32.NewProc("GetShellWindow")
procGetWindowThreadProcessId = moduser32.NewProc("GetWindowThreadProcessId")
+ procIsWindow = moduser32.NewProc("IsWindow")
+ procIsWindowUnicode = moduser32.NewProc("IsWindowUnicode")
+ procIsWindowVisible = moduser32.NewProc("IsWindowVisible")
procMessageBoxW = moduser32.NewProc("MessageBoxW")
procCreateEnvironmentBlock = moduserenv.NewProc("CreateEnvironmentBlock")
procDestroyEnvironmentBlock = moduserenv.NewProc("DestroyEnvironmentBlock")
@@ -3802,6 +3811,19 @@
return
}
+func EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) {
+ syscall.Syscall(procEnumChildWindows.Addr(), 3, uintptr(hwnd), uintptr(enumFunc), uintptr(param))
+ return
+}
+
+func EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) {
+ r1, _, e1 := syscall.Syscall(procEnumWindows.Addr(), 2, uintptr(enumFunc), uintptr(param), 0)
+ if r1 == 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
func ExitWindowsEx(flags uint32, reason uint32) (err error) {
r1, _, e1 := syscall.Syscall(procExitWindowsEx.Addr(), 2, uintptr(flags), uintptr(reason), 0)
if r1 == 0 {
@@ -3810,6 +3832,35 @@
return
}
+func GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) {
+ r0, _, e1 := syscall.Syscall(procGetClassNameW.Addr(), 3, uintptr(hwnd), uintptr(unsafe.Pointer(className)), uintptr(maxCount))
+ copied = int32(r0)
+ if copied == 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+func GetDesktopWindow() (hwnd HWND) {
+ r0, _, _ := syscall.Syscall(procGetDesktopWindow.Addr(), 0, 0, 0, 0)
+ hwnd = HWND(r0)
+ return
+}
+
+func GetForegroundWindow() (hwnd HWND) {
+ r0, _, _ := syscall.Syscall(procGetForegroundWindow.Addr(), 0, 0, 0, 0)
+ hwnd = HWND(r0)
+ return
+}
+
+func GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) {
+ r1, _, e1 := syscall.Syscall(procGetGUIThreadInfo.Addr(), 2, uintptr(thread), uintptr(unsafe.Pointer(info)), 0)
+ if r1 == 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
func GetShellWindow() (shellWindow HWND) {
r0, _, _ := syscall.Syscall(procGetShellWindow.Addr(), 0, 0, 0, 0)
shellWindow = HWND(r0)
@@ -3825,6 +3876,24 @@
return
}
+func IsWindow(hwnd HWND) (isWindow bool) {
+ r0, _, _ := syscall.Syscall(procIsWindow.Addr(), 1, uintptr(hwnd), 0, 0)
+ isWindow = r0 != 0
+ return
+}
+
+func IsWindowUnicode(hwnd HWND) (isUnicode bool) {
+ r0, _, _ := syscall.Syscall(procIsWindowUnicode.Addr(), 1, uintptr(hwnd), 0, 0)
+ isUnicode = r0 != 0
+ return
+}
+
+func IsWindowVisible(hwnd HWND) (isVisible bool) {
+ r0, _, _ := syscall.Syscall(procIsWindowVisible.Addr(), 1, uintptr(hwnd), 0, 0)
+ isVisible = r0 != 0
+ return
+}
+
func MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) {
r0, _, e1 := syscall.Syscall6(procMessageBoxW.Addr(), 4, uintptr(hwnd), uintptr(unsafe.Pointer(text)), uintptr(unsafe.Pointer(caption)), uintptr(boxtype), 0, 0)
ret = int32(r0)
