diff options
Diffstat (limited to 'main.go')
| -rw-r--r-- | main.go | 27 |
1 files changed, 25 insertions, 2 deletions
@@ -19,8 +19,21 @@ func fatalf(format string, args ...interface{}) { panic(fmt.Sprintf("error trying to warn user of internal error: %v\ninternal error:\n%s", err, s)) } -func wndProc(hwnd HWND, msg uint32, wparam WPARAM, lparam LPARAM) LRESULT { +const ( + IDC_BUTTON = 100 +) + +func wndProc(hwnd HWND, msg uint32, wParam WPARAM, lParam LPARAM) LRESULT { switch msg { + case WM_COMMAND: + if wParam.LOWORD() == IDC_BUTTON { + if wParam.HIWORD() == BN_CLICKED { + MessageBox(hwnd, "clicked", "", MB_OK) + } else if wParam.HIWORD() == BN_DOUBLECLICKED { + MessageBox(hwnd, "double clicked", "", MB_OK) + } + } + return 0 case WM_CLOSE: err := DestroyWindow(hwnd) if err != nil { @@ -34,7 +47,7 @@ func wndProc(hwnd HWND, msg uint32, wparam WPARAM, lparam LPARAM) LRESULT { } return 0 default: - return DefWindowProc(hwnd, msg, wparam, lparam) + return DefWindowProc(hwnd, msg, wParam, lParam) } fatalf("major bug: forgot a return on wndProc for message %d", msg) panic("unreachable") @@ -86,6 +99,16 @@ func main() { fatalf("error creating window: %v", err) } + _, err = CreateWindowEx( + 0, + "BUTTON", "Click Me", + BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP, + 20, 20, 100, 100, + hwnd, HMENU(IDC_BUTTON), hInstance, NULL) + if err != nil { + fatalf("error creating button: %v", err) + } + _, err = ShowWindow(hwnd, nCmdShow) if err != nil { fatalf("error showing window: %v", err) |