add more functions

kernel32.go

@@ -399,3 +399,20 @@ func RtlMoveMemory(Destination, Source unsafe.Pointer, Length uintptr) error {
 	}
 	return nil
 }
+
+func GetModuleHandle(lpModuleName *uint16) (HINSTANCE, error) {
+	kernel32, err := syscall.LoadLibrary("kernel32.dll")
+	if err != nil {
+		return 0, err
+	}
+	defer syscall.FreeLibrary(kernel32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(kernel32), "GetModuleHandleW")
+	if err != nil {
+		return 0, err
+	}
+	r, _, err := syscall.Syscall(proc, 1, uintptr(unsafe.Pointer(lpModuleName)), 0, 0)
+	if r == 0 {
+		return 0, err
+	}
+	return HINSTANCE(r), nil
+}

user32.go

@@ -356,7 +356,7 @@ func CreateWindowEx(dwExStyle DWORD, lpClassName, lpWindowName string, dwStyle D
 	return HWND(r), nil
 }
 
-func DestoryWindow(hWnd HWND) (bool, error) {
+func DestroyWindow(hWnd HWND) (bool, error) {
 	user32, err := syscall.LoadLibrary("user32.dll")
 	if err != nil {
 		return false, errors.New("Can't Load User32 API")
@@ -386,3 +386,89 @@ func GetMessage(lpMsg *MSG, hWnd HWND, wMsgFilterMin, wMsgFilterMax DWORD) (DWOR
 	}
 	return DWORD(r), nil
 }
+
+func TranslateMessage(lpMsg *MSG) (bool, error) {
+	user32, err := syscall.LoadLibrary("user32.dll")
+	if err != nil {
+		return false, err
+	}
+	defer syscall.FreeLibrary(user32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(user32), "TranslateMessage")
+	if err != nil {
+		return false, err
+	}
+	r, _, _ := syscall.Syscall(proc, 1, uintptr(unsafe.Pointer(lpMsg)), 0, 0)
+	return r != 0, nil
+}
+
+func DispatchMessage(lpMsg *MSG) (LRESULT, error) {
+	user32, err := syscall.LoadLibrary("user32.dll")
+	if err != nil {
+		return 0, err
+	}
+	defer syscall.FreeLibrary(user32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(user32), "DispatchMessageW")
+	if err != nil {
+		return 0, err
+	}
+	r, _, err := syscall.Syscall(proc, 1, uintptr(unsafe.Pointer(lpMsg)), 0, 0)
+	return LRESULT(r), err
+}
+
+func DefWindowProc(hWnd HWND, uMsg UINT, wParam WPARAM, lParam LPARAM) LRESULT {
+	user32, err := syscall.LoadLibrary("user32.dll")
+	if err != nil {
+		return 0
+	}
+	defer syscall.FreeLibrary(user32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(user32), "DefWindowProcW")
+	if err != nil {
+		return 0
+	}
+	r, _, _ := syscall.Syscall6(proc, 4, uintptr(hWnd), uintptr(uMsg), uintptr(wParam), uintptr(lParam), 0, 0)
+	return LRESULT(r)
+}
+
+func PostMessage(hWnd HWND, msg UINT, wParam WPARAM, lParam LPARAM) (bool, error) {
+	user32, err := syscall.LoadLibrary("user32.dll")
+	if err != nil {
+		return false, err
+	}
+	defer syscall.FreeLibrary(user32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(user32), "PostMessageW")
+	if err != nil {
+		return false, err
+	}
+	r, _, _ := syscall.Syscall6(proc, 4, uintptr(hWnd), uintptr(msg), uintptr(wParam), uintptr(lParam), 0, 0)
+	return r != 0, nil
+}
+
+func PostQuitMessage(nExitCode int) {
+	user32, err := syscall.LoadLibrary("user32.dll")
+	if err != nil {
+		return
+	}
+	defer syscall.FreeLibrary(user32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(user32), "PostQuitMessage")
+	if err != nil {
+		return
+	}
+	syscall.Syscall(proc, 1, uintptr(nExitCode), 0, 0)
+}
+
+func RegisterClassEx(lpWndClass *WNDCLASSEX) (uint16, error) {
+	user32, err := syscall.LoadLibrary("user32.dll")
+	if err != nil {
+		return 0, err
+	}
+	defer syscall.FreeLibrary(user32)
+	proc, err := syscall.GetProcAddress(syscall.Handle(user32), "RegisterClassExW")
+	if err != nil {
+		return 0, err
+	}
+	r, _, err := syscall.Syscall(proc, 1, uintptr(unsafe.Pointer(lpWndClass)), 0, 0)
+	if r == 0 {
+		return 0, err
+	}
+	return uint16(r), nil
+}

user32_typedef.go

@@ -224,7 +224,26 @@ type MSG struct {
 type POINT struct {
 	X, Y int32
 }
+type WNDCLASSEX struct {
+	CbSize        UINT
+	Style         uint32
+	LpfnWndProc   uintptr
+	CbClsExtra    int32
+	CbWndExtra    int32
+	HInstance     HINSTANCE
+	HIcon         HICON
+	HCursor       HCURSOR
+	HbrBackground HBRUSH
+	LpszMenuName  *uint16
+	LpszClassName *uint16
+	HIconSm       HICON
+}
 
 const (
-	WM_CLIPBOARDUPDATE DWORD = 0x031D
+	CS_HREDRAW         = 0x0002
+	CS_VREDRAW         = 0x0001
+	CW_USEDEFAULT      = 0x80000000
+	WM_CLIPBOARDUPDATE = 0x031D
+	WM_QUIT            = 0x0012
+	WM_DESTROY         = 0x0002
 )

win32api.go

@@ -4,6 +4,10 @@ import (
 	"unsafe"
 )
 
+const (
+	WM_USER UINT = 0x0400
+)
+
 type (
 	ATOM                         uint16
 	BOOL                         int32
@@ -62,6 +66,7 @@ type (
 	USN                          int64
 	LARGE_INTEGER                LONGLONG
 	LONGLONG                     int64
+	UINT                         uint32
 )
 
 type WTS_SESSION_INFO struct {