diff options
Diffstat (limited to 'plugins/TopToolBar/_button.cpp')
| -rw-r--r-- | plugins/TopToolBar/_button.cpp | 522 |
1 files changed, 522 insertions, 0 deletions
diff --git a/plugins/TopToolBar/_button.cpp b/plugins/TopToolBar/_button.cpp new file mode 100644 index 0000000000..e1c1a31584 --- /dev/null +++ b/plugins/TopToolBar/_button.cpp @@ -0,0 +1,522 @@ +/*
+Miranda IM
+Copyright (C) 2002 Robert Rainwater
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+#include "common.h"
+
+// TODO:
+// - Support for bitmap buttons (simple call to DrawIconEx())
+
+static LRESULT CALLBACK MButtonWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
+
+typedef struct {
+ HWND hwnd;
+ int stateId; // button state
+ int focus; // has focus (1 or 0)
+ HFONT hFont; // font
+ HICON arrow; // uses down arrow
+ int defbutton; // default button
+ HICON hIcon;
+ HBITMAP hBitmap;
+ int pushBtn;
+ int pbState;
+ HANDLE hThemeButton;
+ HANDLE hThemeToolbar;
+ char cHot;
+ int flatBtn;
+} MButtonCtrl;
+
+
+// External theme methods and properties
+static HMODULE themeAPIHandle = NULL; // handle to uxtheme.dll
+static HANDLE (WINAPI *MyOpenThemeData)(HWND, LPCWSTR);
+static HRESULT (WINAPI *MyCloseThemeData)(HANDLE);
+static BOOL (WINAPI *MyIsThemeBackgroundPartiallyTransparent)(HANDLE, int, int);
+static HRESULT (WINAPI *MyDrawThemeParentBackground)(HWND, HDC, RECT *);
+static HRESULT (WINAPI *MyDrawThemeBackground)(HANDLE, HDC, int, int, const RECT *, const RECT *);
+static HRESULT (WINAPI *MyDrawThemeText)(HANDLE, HDC, int, int, LPCWSTR, int, DWORD, DWORD, const RECT *);
+
+static CRITICAL_SECTION csTips;
+static HWND hwndToolTips = NULL;
+
+int UnloadButtonModule(WPARAM wParam, LPARAM lParam)
+{
+ DeleteCriticalSection(&csTips);
+ return 0;
+}
+
+int LoadButtonModule(void)
+{
+ WNDCLASSEX wc = { 0 };
+ wc.cbSize = sizeof(wc);
+ wc.lpszClassName = MYMIRANDABUTTONCLASS;
+ wc.lpfnWndProc = MButtonWndProc;
+ wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+ wc.cbWndExtra = sizeof(MButtonCtrl*);
+ wc.hbrBackground = 0;
+ wc.style = CS_GLOBALCLASS;
+ RegisterClassEx(&wc);
+ InitializeCriticalSection(&csTips);
+ HookEvent(ME_SYSTEM_SHUTDOWN, UnloadButtonModule);
+ return 0;
+}
+
+// Used for our own cheap TrackMouseEvent
+#define BUTTON_POLLID 100
+#define BUTTON_POLLDELAY 50
+
+#define MGPROC(x) GetProcAddress(themeAPIHandle, x)
+static int ThemeSupport() {
+ if (IsWinVerXPPlus()) {
+ if (!themeAPIHandle) {
+ themeAPIHandle = GetModuleHandle("uxtheme");
+ if (themeAPIHandle) {
+ MyOpenThemeData = (HANDLE (WINAPI *)(HWND, LPCWSTR))MGPROC("OpenThemeData");
+ MyCloseThemeData = (HRESULT (WINAPI *)(HANDLE))MGPROC("CloseThemeData");
+ MyIsThemeBackgroundPartiallyTransparent = (BOOL (WINAPI *)(HANDLE, int, int))MGPROC("IsThemeBackgroundPartiallyTransparent");
+ MyDrawThemeParentBackground = (HRESULT (WINAPI *)(HWND, HDC, RECT *))MGPROC("DrawThemeParentBackground");
+ MyDrawThemeBackground = (HRESULT (WINAPI *)(HANDLE, HDC, int, int, const RECT *, const RECT *))MGPROC("DrawThemeBackground");
+ MyDrawThemeText = (HRESULT (WINAPI *)(HANDLE, HDC, int, int, LPCWSTR, int, DWORD, DWORD, const RECT *))MGPROC("DrawThemeText");
+ }
+ }
+ // Make sure all of these methods are valid (i would hope either all or none work)
+ if (MyOpenThemeData
+ &&MyCloseThemeData
+ &&MyIsThemeBackgroundPartiallyTransparent
+ &&MyDrawThemeParentBackground
+ &&MyDrawThemeBackground
+ &&MyDrawThemeText) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static void DestroyTheme(MButtonCtrl *ctl)
+{
+ if (ThemeSupport()) {
+ if (ctl->hThemeButton) {
+ MyCloseThemeData(ctl->hThemeButton);
+ ctl->hThemeButton = NULL;
+ }
+ if (ctl->hThemeToolbar) {
+ MyCloseThemeData(ctl->hThemeToolbar);
+ ctl->hThemeToolbar = NULL;
+ }
+ }
+}
+
+static void LoadTheme(MButtonCtrl *ctl)
+{
+ if (ThemeSupport()) {
+ DestroyTheme(ctl);
+ ctl->hThemeButton = MyOpenThemeData(ctl->hwnd, L"BUTTON");
+ ctl->hThemeToolbar = MyOpenThemeData(ctl->hwnd, L"TOOLBAR");
+ }
+}
+
+static int TBStateConvert2Flat(int state)
+{
+ switch(state) {
+ case PBS_NORMAL: return TS_NORMAL;
+ case PBS_HOT: return TS_HOT;
+ case PBS_PRESSED: return TS_PRESSED;
+ case PBS_DISABLED: return TS_DISABLED;
+ case PBS_DEFAULTED: return TS_NORMAL;
+ }
+ return TS_NORMAL;
+}
+
+static void PaintWorker(MButtonCtrl *ctl, HDC hdcPaint)
+{
+ if (hdcPaint) {
+ RECT rcClient;
+ GetClientRect(ctl->hwnd, &rcClient);
+
+ // If its a push button, check to see if it should stay pressed
+ if (ctl->pushBtn && ctl->pbState) ctl->stateId = PBS_PRESSED;
+
+ // Draw the flat button
+ if (ctl->flatBtn) {
+ if (ctl->hThemeToolbar) {
+ int state = IsWindowEnabled(ctl->hwnd)?(ctl->stateId == PBS_NORMAL&&ctl->defbutton?PBS_DEFAULTED:ctl->stateId):PBS_DISABLED;
+ if (MyIsThemeBackgroundPartiallyTransparent(ctl->hThemeToolbar, TP_BUTTON, TBStateConvert2Flat(state))) {
+ MyDrawThemeParentBackground(ctl->hwnd, hdcPaint, &rcClient);
+ }
+ MyDrawThemeBackground(ctl->hThemeToolbar, hdcPaint, TP_BUTTON, TBStateConvert2Flat(state), &rcClient, &rcClient);
+ }
+ else {
+ HBRUSH hbr;
+
+ if (ctl->stateId == PBS_PRESSED||ctl->stateId == PBS_HOT)
+ hbr = GetSysColorBrush(COLOR_3DLIGHT);
+ else {
+ HDC dc;
+ HWND hwndParent;
+
+ hwndParent = GetParent(ctl->hwnd);
+ dc = GetDC(hwndParent);
+ hbr = (HBRUSH)SendMessage(hwndParent, WM_CTLCOLORDLG, (WPARAM)dc, (LPARAM)hwndParent);
+ ReleaseDC(hwndParent, dc);
+ }
+ if (hbr) {
+ FillRect(hdcPaint, &rcClient, hbr);
+ DeleteObject(hbr);
+ }
+ if (ctl->stateId == PBS_HOT||ctl->focus) {
+ if (ctl->pbState)
+ DrawEdge(hdcPaint, &rcClient, EDGE_ETCHED, BF_RECT|BF_SOFT);
+ else DrawEdge(hdcPaint, &rcClient, BDR_RAISEDOUTER, BF_RECT|BF_SOFT|BF_FLAT);
+ }
+ else if (ctl->stateId == PBS_PRESSED)
+ DrawEdge(hdcPaint, &rcClient, BDR_SUNKENOUTER, BF_RECT|BF_SOFT);
+ }
+ }
+ else {
+ // Draw background/border
+ if (ctl->hThemeButton) {
+ int state = IsWindowEnabled(ctl->hwnd)?(ctl->stateId == PBS_NORMAL&&ctl->defbutton?PBS_DEFAULTED:ctl->stateId):PBS_DISABLED;
+ if (MyIsThemeBackgroundPartiallyTransparent(ctl->hThemeButton, BP_PUSHBUTTON, state)) {
+ MyDrawThemeParentBackground(ctl->hwnd, hdcPaint, &rcClient);
+ }
+ MyDrawThemeBackground(ctl->hThemeButton, hdcPaint, BP_PUSHBUTTON, state, &rcClient, &rcClient);
+ }
+ else {
+ UINT uState = DFCS_BUTTONPUSH|((ctl->stateId == PBS_HOT)?DFCS_HOT:0)|((ctl->stateId == PBS_PRESSED)?DFCS_PUSHED:0);
+ if (ctl->defbutton&&ctl->stateId == PBS_NORMAL) uState |= DLGC_DEFPUSHBUTTON;
+ DrawFrameControl(hdcPaint, &rcClient, DFC_BUTTON, uState);
+ }
+
+ // Draw focus rectangle if button has focus
+ if (ctl->focus) {
+ RECT focusRect = rcClient;
+ InflateRect(&focusRect, -3, -3);
+ DrawFocusRect(hdcPaint, &focusRect);
+ }
+ }
+
+ // If we have an icon or a bitmap, ignore text and only draw the image on the button
+ if (ctl->hIcon) {
+ int ix = (rcClient.right-rcClient.left)/2 - (GetSystemMetrics(SM_CXSMICON)/2);
+ int iy = (rcClient.bottom-rcClient.top)/2 - (GetSystemMetrics(SM_CYSMICON)/2);
+ if (ctl->stateId == PBS_PRESSED) {
+ ix++;
+ iy++;
+ }
+ DrawState(hdcPaint, NULL, NULL, (LPARAM)ctl->hIcon, 0, ix, iy, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), IsWindowEnabled(ctl->hwnd)?DST_ICON:DST_ICON|DSS_DISABLED);
+ }
+ else if (ctl->hBitmap) {
+ BITMAP bminfo;
+ int ix, iy;
+
+ GetObject(ctl->hBitmap, sizeof(bminfo), &bminfo);
+ ix = (rcClient.right-rcClient.left)/2 - (bminfo.bmWidth/2);
+ iy = (rcClient.bottom-rcClient.top)/2 - (bminfo.bmHeight/2);
+ if (ctl->stateId == PBS_PRESSED) {
+ ix++;
+ iy++;
+ }
+ DrawState(hdcPaint, NULL, NULL, (LPARAM)ctl->hBitmap, 0, ix, iy, bminfo.bmWidth, bminfo.bmHeight, IsWindowEnabled(ctl->hwnd)?DST_BITMAP:DST_BITMAP|DSS_DISABLED);
+ }
+ else if (GetWindowTextLength(ctl->hwnd)) {
+ // Draw the text and optinally the arrow
+ char szText[MAX_PATH];
+ SIZE sz;
+ RECT rcText;
+
+ CopyRect(&rcText, &rcClient);
+ GetWindowText(ctl->hwnd, szText, sizeof(szText));
+ SetBkMode(hdcPaint, TRANSPARENT);
+ SelectObject(hdcPaint, ctl->hFont);
+ // XP w/themes doesn't used the glossy disabled text. Is it always using COLOR_GRAYTEXT? Seems so.
+ SetTextColor(hdcPaint, IsWindowEnabled(ctl->hwnd)||!ctl->hThemeButton?GetSysColor(COLOR_BTNTEXT):GetSysColor(COLOR_GRAYTEXT));
+ GetTextExtentPoint32(hdcPaint, szText, lstrlen(szText), &sz);
+ if (ctl->cHot) {
+ SIZE szHot;
+
+ GetTextExtentPoint32(hdcPaint, "&", 1, &szHot);
+ sz.cx -= szHot.cx;
+ }
+ if (ctl->arrow) {
+ DrawState(hdcPaint, NULL, NULL, (LPARAM)ctl->arrow, 0, rcClient.right-rcClient.left-5-GetSystemMetrics(SM_CXSMICON)+(!ctl->hThemeButton&&ctl->stateId == PBS_PRESSED?1:0), (rcClient.bottom-rcClient.top)/2-GetSystemMetrics(SM_CYSMICON)/2+(!ctl->hThemeButton&&ctl->stateId == PBS_PRESSED?1:0), GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), IsWindowEnabled(ctl->hwnd)?DST_ICON:DST_ICON|DSS_DISABLED);
+ }
+ SelectObject(hdcPaint, ctl->hFont);
+ DrawState(hdcPaint, NULL, NULL, (LPARAM)szText, 0, (rcText.right-rcText.left-sz.cx)/2+(!ctl->hThemeButton&&ctl->stateId == PBS_PRESSED?1:0), ctl->hThemeButton?(rcText.bottom-rcText.top-sz.cy)/2:(rcText.bottom-rcText.top-sz.cy)/2-(ctl->stateId == PBS_PRESSED?0:1), sz.cx, sz.cy, IsWindowEnabled(ctl->hwnd)||ctl->hThemeButton?DST_PREFIXTEXT|DSS_NORMAL:DST_PREFIXTEXT|DSS_DISABLED);
+ }
+ }
+}
+
+static LRESULT CALLBACK MButtonWndProc(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+ MButtonCtrl* bct = (MButtonCtrl *)GetWindowLongPtr(hwndDlg, 0);
+ switch(msg) {
+ case WM_NCCREATE:
+ SetWindowLong(hwndDlg, GWL_STYLE, GetWindowLongPtr(hwndDlg, GWL_STYLE)|BS_OWNERDRAW);
+ bct = ( MButtonCtrl* )malloc(sizeof(MButtonCtrl));
+ if (bct == NULL)
+ return FALSE;
+
+ bct->hwnd = hwndDlg;
+ bct->stateId = PBS_NORMAL;
+ bct->focus = 0;
+ bct->hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
+ bct->arrow = NULL;
+ bct->defbutton = 0;
+ bct->hIcon = NULL;
+ bct->hBitmap = NULL;
+ bct->pushBtn = 0;
+ bct->pbState = 0;
+ bct->hThemeButton = NULL;
+ bct->hThemeToolbar = NULL;
+ bct->cHot = 0;
+ bct->flatBtn = 0;
+ LoadTheme(bct);
+ SetWindowLong(hwndDlg, 0, (LONG)bct);
+ if (((CREATESTRUCT *)lParam)->lpszName) SetWindowText(hwndDlg, ((CREATESTRUCT *)lParam)->lpszName);
+ return TRUE;
+
+ case WM_DESTROY:
+ if (bct) {
+ EnterCriticalSection(&csTips);
+ if (hwndToolTips) {
+ TOOLINFO ti;
+
+ ZeroMemory(&ti, sizeof(ti));
+ ti.cbSize = sizeof(ti);
+ ti.uFlags = TTF_IDISHWND;
+ ti.hwnd = bct->hwnd;
+ ti.uId = (UINT)bct->hwnd;
+ if (SendMessage(hwndToolTips, TTM_GETTOOLINFO, 0, (LPARAM)&ti)) {
+ SendMessage(hwndToolTips, TTM_DELTOOL, 0, (LPARAM)&ti);
+ }
+ if (SendMessage(hwndToolTips, TTM_GETTOOLCOUNT, 0, (LPARAM)&ti) == 0) {
+ DestroyWindow(hwndToolTips);
+ hwndToolTips = NULL;
+ }
+ }
+ LeaveCriticalSection(&csTips);
+ DestroyTheme(bct);
+ free(bct);
+ }
+ SetWindowLong(hwndDlg, 0, (LONG)NULL);
+ break; // DONT! fall thru
+
+ case WM_SETTEXT:
+ bct->cHot = 0;
+ if ((char*)lParam) {
+ char *tmp = (char*)lParam;
+ while (*tmp) {
+ if (*tmp == '&' && *(tmp+1)) {
+ bct->cHot = tolower(*(tmp+1));
+ break;
+ }
+ tmp++;
+ }
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+
+ case WM_SYSKEYUP:
+ if (bct->stateId != PBS_DISABLED && bct->cHot && bct->cHot == tolower((int)wParam)) {
+ if (bct->pushBtn) {
+ if (bct->pbState) bct->pbState = 0;
+ else bct->pbState = 1;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ SendMessage(GetParent(hwndDlg), WM_COMMAND, MAKELONG(GetDlgCtrlID(hwndDlg), BN_CLICKED), (LPARAM)hwndDlg);
+ return 0;
+ }
+ break;
+
+ case WM_THEMECHANGED:
+ // themed changed, reload theme object
+ LoadTheme(bct);
+ InvalidateRect(bct->hwnd, NULL, TRUE); // repaint it
+ break;
+
+ case WM_SETFONT: // remember the font so we can use it later
+ bct->hFont = (HFONT)wParam; // maybe we should redraw?
+ break;
+
+ case WM_PAINT:
+ {
+ PAINTSTRUCT ps;
+ HDC hdcPaint = BeginPaint(hwndDlg, &ps);
+ if (hdcPaint) {
+ PaintWorker(bct, hdcPaint);
+ EndPaint(hwndDlg, &ps);
+ }
+ }
+ break;
+
+ case BM_SETIMAGE:
+ if (wParam == IMAGE_ICON) {
+ bct->hIcon = (HICON)lParam;
+ bct->hBitmap = NULL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ else if (wParam == IMAGE_BITMAP) {
+ bct->hBitmap = (HBITMAP)lParam;
+ bct->hIcon = NULL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+
+ case BM_SETCHECK:
+ if (!bct->pushBtn) break;
+ if (wParam == BST_CHECKED) {
+ bct->pbState = 1;
+ bct->stateId = PBS_PRESSED;
+ }
+ else if (wParam == BST_UNCHECKED) {
+ bct->pbState = 0;
+ bct->stateId = PBS_NORMAL;
+ }
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case BM_GETCHECK:
+ if (bct->pushBtn)
+ return bct->pbState?BST_CHECKED:BST_UNCHECKED;
+
+ return 0;
+
+ case BUTTONSETARROW: // turn arrow on/off
+ if (wParam) {
+ //if (!bct->arrow)
+ //bct->arrow = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_DOWNARROW), IMAGE_ICON, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), 0);
+ }
+ else {
+ if (bct->arrow) {
+ DestroyIcon(bct->arrow);
+ bct->arrow = NULL;
+ }
+ }
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case BUTTONSETDEFAULT:
+ bct->defbutton = wParam?1:0;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case BUTTONSETASPUSHBTN:
+ bct->pushBtn = 1;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case BUTTONSETASFLATBTN:
+ bct->flatBtn = 1;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case BUTTONADDTOOLTIP:
+ if (wParam) {
+ EnterCriticalSection(&csTips);
+ if (!hwndToolTips)
+ hwndToolTips = CreateWindowEx(WS_EX_TOPMOST, TOOLTIPS_CLASS, "", WS_POPUP, 0, 0, 0, 0, NULL, NULL, GetModuleHandle(NULL), NULL);
+
+ TOOLINFO ti = { 0 };
+ ti.cbSize = sizeof(ti);
+ ti.uFlags = TTF_IDISHWND;
+ ti.hwnd = bct->hwnd;
+ ti.uId = (UINT)bct->hwnd;
+ if (SendMessage(hwndToolTips, TTM_GETTOOLINFO, 0, (LPARAM)&ti)) {
+ SendMessage(hwndToolTips, TTM_DELTOOL, 0, (LPARAM)&ti);
+ }
+ ti.uFlags = TTF_IDISHWND|TTF_SUBCLASS;
+ ti.uId = (UINT)bct->hwnd;
+ ti.lpszText = (char*)wParam;
+ SendMessage(hwndToolTips, TTM_ADDTOOL, 0, (LPARAM)&ti);
+ LeaveCriticalSection(&csTips);
+ }
+ break;
+
+ case WM_SETFOCUS: // set keybord focus and redraw
+ bct->focus = 1;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case WM_KILLFOCUS: // kill focus and redraw
+ bct->focus = 0;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case WM_WINDOWPOSCHANGED:
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case WM_ENABLE: // windows tells us to enable/disable
+ bct->stateId = wParam?PBS_NORMAL:PBS_DISABLED;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+
+ case WM_MOUSELEAVE: // faked by the WM_TIMER
+ if (bct->stateId != PBS_DISABLED) { // don't change states if disabled
+ bct->stateId = PBS_NORMAL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+
+ case WM_LBUTTONDOWN:
+ if (bct->stateId != PBS_DISABLED) { // don't change states if disabled
+ bct->stateId = PBS_PRESSED;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+
+ case WM_LBUTTONUP:
+ if (bct->pushBtn) {
+ if (bct->pbState) bct->pbState = 0;
+ else bct->pbState = 1;
+ }
+ if (bct->stateId != PBS_DISABLED) { // don't change states if disabled
+ if (msg == WM_LBUTTONUP) bct->stateId = PBS_HOT;
+ else bct->stateId = PBS_NORMAL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ // Tell your daddy you got clicked.
+ SendMessage(GetParent(hwndDlg), WM_COMMAND, MAKELONG(GetDlgCtrlID(hwndDlg), BN_CLICKED), (LPARAM)hwndDlg);
+ break;
+
+ case WM_MOUSEMOVE:
+ if (bct->stateId == PBS_NORMAL) {
+ bct->stateId = PBS_HOT;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ // Call timer, used to start cheesy TrackMouseEvent faker
+ SetTimer(hwndDlg, BUTTON_POLLID, BUTTON_POLLDELAY, NULL);
+ break;
+
+ case WM_TIMER: // use a timer to check if they have did a mouseout
+ if (wParam == BUTTON_POLLID) {
+ RECT rc;
+ POINT pt;
+ GetWindowRect(hwndDlg, &rc);
+ GetCursorPos(&pt);
+ if (!PtInRect(&rc, pt)) { // mouse must be gone, trigger mouse leave
+ PostMessage(hwndDlg, WM_MOUSELEAVE, 0, 0L);
+ KillTimer(hwndDlg, BUTTON_POLLID);
+ }
+ }
+ break;
+
+ case WM_ERASEBKGND:
+ return 1;
+ }
+ return DefWindowProc(hwndDlg, msg, wParam, lParam);
+}
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