func Create(windowInstance unsafe.Pointer) (obj DirectInput, err error) {
DirectInput8Create, err := syscall.GetProcAddress(dll, "DirectInput8Create")
if err != nil {
return DirectInput{}, err
}
err = toError(C.create(
unsafe.Pointer(DirectInput8Create),
C.HINSTANCE(windowInstance),
&obj.handle,
))
return
}
// #include "helper_windows.h"
//
// extern LRESULT CALLBACK (*pGlobalOnEvent)(HWND handle, UINT message, WPARAM wParam, LPARAM lParam);
import "C"
import (
"fmt"
"image"
"unsafe"
)
var className, classNameLength = utf16Convert("go-glml/window.Window")
var windowClass = C.WNDCLASSW{
lpfnWndProc: C.pGlobalOnEvent,
style: C.CS_OWNDC | C.CS_HREDRAW | C.CS_VREDRAW,
hInstance: C.HINSTANCE(C.GetModuleHandle(nil)),
lpszClassName: className,
}
func init() {
C.RegisterClassW(&windowClass)
}
type WindowHandle struct {
Handle C.HWND
}
func (wh WindowHandle) IsValid() bool {
return wh.Handle != nil
}