diff options
Diffstat (limited to 'redo/container_windows.c')
| -rw-r--r-- | redo/container_windows.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/redo/container_windows.c b/redo/container_windows.c index 927e03b..ea19695 100644 --- a/redo/container_windows.c +++ b/redo/container_windows.c @@ -15,6 +15,10 @@ static LRESULT CALLBACK containerWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LP { void *data; RECT r; + HDC dc; + PAINTSTRUCT ps; + HWND parent; + POINT client; data = (void *) GetWindowLongPtrW(hwnd, GWLP_USERDATA); if (data == NULL) { @@ -33,6 +37,29 @@ static LRESULT CALLBACK containerWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LP return forwardCommand(hwnd, uMsg, wParam, lParam); case WM_NOTIFY: return forwardNotify(hwnd, uMsg, wParam, lParam); + case WM_PAINT: + /* paint the parent's background in a flicker-free way */ + dc = BeginPaint(hwnd, &ps); + if (dc == NULL) + abort();//TODO + parent = GetParent(hwnd); + if (parent == NULL) + abort();//TODO + if (GetWindowRect(hwnd, &r) == 0) + abort();//TODO + /* GetWindowRect() returns in screen coordinates; we want parent client */ + client.x = r.left; + client.y = r.top; + if (ScreenToClient(parent, &client) == 0) + abort();//TODO + if (SetWindowOrgEx(dc, client.x, client.y, NULL) == 0) + abort();//TODO + SendMessageW(parent, WM_PRINTCLIENT, (WPARAM) dc, PRF_CLIENT); + EndPaint(hwnd, &ps); + return 0; + case WM_ERASEBKGND: + /* we paint our own background above */ + return 1; case WM_SIZE: if (GetClientRect(hwnd, &r) == 0) xpanic("error getting client rect for Window in WM_SIZE", GetLastError()); @@ -54,8 +81,7 @@ DWORD makeContainerWindowClass(char **errmsg) wc.hInstance = hInstance; wc.hIcon = hDefaultIcon; wc.hCursor = hArrowCursor; - /* TODO won't this override our visual styles? */ - wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); + wc.hbrBackground = NULL; /* we paint our own background */ wc.lpszClassName = containerclass; if (RegisterClassW(&wc) == 0) { *errmsg = "error registering container window class"; @@ -69,7 +95,7 @@ HWND newContainer(void *data) HWND hwnd; hwnd = CreateWindowExW( - 0, + WS_EX_TRANSPARENT, containerclass, L"", WS_CHILD | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT, |