10 static ATOM tip_class = 0;
12 static HFONT tip_font;
13 static COLORREF tip_bg;
14 static COLORREF tip_text;
16 static LRESULT CALLBACK SizeTipWndProc(HWND hWnd, UINT nMsg,
17 WPARAM wParam, LPARAM lParam)
34 hdc = BeginPaint(hWnd, &ps);
36 SelectObject(hdc, tip_font);
37 SelectObject(hdc, GetStockObject(BLACK_PEN));
39 hbr = CreateSolidBrush(tip_bg);
40 holdbr = SelectObject(hdc, hbr);
42 GetClientRect(hWnd, &cr);
43 Rectangle(hdc, cr.left, cr.top, cr.right, cr.bottom);
45 wtlen = GetWindowTextLength(hWnd);
46 wt = (LPTSTR)malloc((wtlen+1)*sizeof(TCHAR));
47 GetWindowText(hWnd, wt, wtlen+1);
49 SetTextColor(hdc, tip_text);
50 SetBkColor(hdc, tip_bg);
52 TextOut(hdc, cr.left+3, cr.top+3, wt, wtlen);
56 SelectObject(hdc, holdbr);
67 DeleteObject(tip_font);
73 LPCTSTR str = (LPCTSTR)lParam;
75 HDC hdc = CreateCompatibleDC(NULL);
77 SelectObject(hdc, tip_font);
78 GetTextExtentPoint32(hdc, str, _tcslen(str), &sz);
80 SetWindowPos(hWnd, NULL, 0, 0, sz.cx+6, sz.cy+6, SWP_NOZORDER|SWP_NOMOVE|SWP_NOACTIVATE);
81 InvalidateRect(hWnd, NULL, FALSE);
88 return DefWindowProc(hWnd, nMsg, wParam, lParam);
91 static HWND tip_wnd = NULL;
92 static int tip_enabled = 0;
94 void UpdateSizeTip(HWND src, int cx, int cy)
98 if (!tip_enabled) return;
101 NONCLIENTMETRICS nci;
103 /* First make sure the window class is registered */
107 wc.style = CS_HREDRAW|CS_VREDRAW;
108 wc.lpfnWndProc = SizeTipWndProc;
111 wc.hInstance = hinst;
114 wc.hbrBackground = NULL;
115 wc.lpszMenuName = NULL;
116 wc.lpszClassName = "SizeTipClass";
118 tip_class = RegisterClass(&wc);
122 /* Default values based on Windows Standard color scheme */
124 tip_font = GetStockObject(SYSTEM_FONT);
125 tip_bg = RGB(255, 255, 225);
126 tip_text = RGB(0, 0, 0);
129 /* Prepare other GDI objects and drawing info */
131 tip_bg = GetSysColor(COLOR_INFOBK);
132 tip_text = GetSysColor(COLOR_INFOTEXT);
134 memset(&nci, 0, sizeof(NONCLIENTMETRICS));
135 nci.cbSize = sizeof(NONCLIENTMETRICS);
136 SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &nci, 0);
137 tip_font = CreateFontIndirect(&nci.lfStatusFont);
140 /* Generate the tip text */
142 sprintf(str, "%dx%d", cx, cy);
150 /* calculate the tip's size */
152 hdc = CreateCompatibleDC(NULL);
153 GetTextExtentPoint32(hdc, str, _tcslen(str), &sz);
156 GetWindowRect(src, &wr);
164 /* Create the tip window */
166 tip_wnd = CreateWindowEx(WS_EX_TOOLWINDOW|WS_EX_TOPMOST, MAKEINTRESOURCE(tip_class), str, WS_POPUP,
167 ix, iy, sz.cx, sz.cy,
168 NULL, NULL, hinst, NULL);
170 ShowWindow(tip_wnd, SW_SHOWNOACTIVATE);
174 /* Tip already exists, just set the text */
176 SetWindowText(tip_wnd, str);
180 void EnableSizeTip(int bEnable)
182 if (tip_wnd && !bEnable) {
183 DestroyWindow(tip_wnd);
187 tip_enabled = bEnable;