diff options
| -rw-r--r-- | stdwndclass_windows.go | 4 | ||||
| -rw-r--r-- | sysdata_windows.go | 7 |
2 files changed, 9 insertions, 2 deletions
diff --git a/stdwndclass_windows.go b/stdwndclass_windows.go index c90bb92..3c189a7 100644 --- a/stdwndclass_windows.go +++ b/stdwndclass_windows.go @@ -60,7 +60,9 @@ func storeSysData(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRES cs := (*uintptr)(unsafe.Pointer(lParam)) saddr := *cs setWindowLongPtr(hwnd, negConst(_GWLP_USERDATA), saddr) - // don't set s; we return here + // also set s.hwnd here so it can be used by other window messages right away + s := (*sysData)(unsafe.Pointer(saddr)) + s.hwnd = hwnd } // TODO is this correct for WM_NCCREATE? I think the above link does it but I'm not entirely sure... return defWindowProc(hwnd, uMsg, wParam, lParam) diff --git a/sysdata_windows.go b/sysdata_windows.go index 2a15ea8..fdfbd8c 100644 --- a/sysdata_windows.go +++ b/sysdata_windows.go @@ -179,7 +179,12 @@ func (s *sysData) make(window *sysData) (err error) { } return fmt.Errorf("error actually creating window/control: %v", r.err) } - s.hwnd = _HWND(r.ret) + if !ct.storeSysData { // regular control; store s.hwnd ourselves + s.hwnd = _HWND(r.ret) + } else if s.hwnd != _HWND(r.ret) { // we store sysData in storeSysData(); sanity check + // TODO really panic? + panic(fmt.Errorf("hwnd mismatch creating window/control: storeSysData() stored 0x%X but CreateWindowEx() returned 0x%X", s.hwnd, ret)) + } if !ct.doNotLoadFont { uitask <- &uimsg{ call: _sendMessage, |