diff options
Diffstat (limited to 'area_windows.go')
| -rw-r--r-- | area_windows.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/area_windows.go b/area_windows.go index 6708a27..35438e3 100644 --- a/area_windows.go +++ b/area_windows.go @@ -604,8 +604,12 @@ var ( _setFocus = user32.NewProc("SetFocus") ) -func areaWndProc(s *sysData) func(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESULT { +func areaWndProc(unused *sysData) func(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESULT { return func(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESULT { + s := getSysData(hwnd) + if s == nil { // not yet saved + return storeSysData(hwnd, uMsg, wParam, lParam) + } switch uMsg { case _WM_PAINT: paintArea(s) |