/* * tkWinButton.c -- * * This file implements the Windows specific portion of the button * widgets. * * Copyright (c) 1996 by Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * SCCS: @(#) tkWinButton.c 1.12 97/09/02 13:18:27 */ #define OEMRESOURCE #include "tkWinInt.h" #include "tkButton.h" /* * These macros define the base style flags for the different button types. */ #define LABEL_STYLE (BS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS) #define PUSH_STYLE (BS_OWNERDRAW | BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS) #define CHECK_STYLE (BS_OWNERDRAW | BS_CHECKBOX | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS) #define RADIO_STYLE (BS_OWNERDRAW | BS_RADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS) static DWORD buttonStyles[] = { LABEL_STYLE, PUSH_STYLE, CHECK_STYLE, RADIO_STYLE }; /* * Declaration of Windows specific button structure. */ typedef struct WinButton { TkButton info; /* Generic button info. */ WNDPROC oldProc; /* Old window procedure. */ HWND hwnd; /* Current window handle. */ Pixmap pixmap; /* Bitmap for rendering the button. */ DWORD style; /* Window style flags. */ } WinButton; /* * The following macro reverses the order of RGB bytes to convert * between RGBQUAD and COLORREF values. */ #define FlipColor(rgb) (RGB(GetBValue(rgb),GetGValue(rgb),GetRValue(rgb))) /* * The following enumeration defines the meaning of the palette entries * in the "buttons" image used to draw checkbox and radiobutton indicators. */ enum { PAL_CHECK = 0, PAL_TOP_OUTER = 1, PAL_BOTTOM_OUTER = 2, PAL_BOTTOM_INNER = 3, PAL_INTERIOR = 4, PAL_TOP_INNER = 5, PAL_BACKGROUND = 6 }; /* * Set to non-zero if this module is initialized. */ static int initialized = 0; /* * Variables for the cached information about the boxes bitmap. */ static BITMAPINFOHEADER *boxesPtr = NULL; /* Information about the bitmap. */ static DWORD *boxesPalette = NULL; /* Pointer to color palette. */ static LPSTR boxesBits = NULL; /* Pointer to bitmap data. */ static DWORD boxHeight = 0, boxWidth = 0; /* Size of each sub-image. */ /* * This variable holds the default border width for a button in string * form for use in a Tk_ConfigSpec. */ static char defWidth[8]; /* * Declarations for functions defined in this file. */ static int ButtonBindProc _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, XEvent *eventPtr, Tk_Window tkwin, KeySym keySym)); static LRESULT CALLBACK ButtonProc _ANSI_ARGS_((HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)); static DWORD ComputeStyle _ANSI_ARGS_((WinButton* butPtr)); static Window CreateProc _ANSI_ARGS_((Tk_Window tkwin, Window parent, ClientData instanceData)); static void InitBoxes _ANSI_ARGS_((void)); static void UpdateButtonDefaults _ANSI_ARGS_((void)); /* * The class procedure table for the button widgets. */ TkClassProcs tkpButtonProcs = { CreateProc, /* createProc. */ TkButtonWorldChanged, /* geometryProc. */ NULL /* modalProc. */ }; /* *---------------------------------------------------------------------- * * InitBoxes -- * * This function load the Tk 3d button bitmap. "buttons" is a 16 * color bitmap that is laid out such that the top row contains * the 4 checkbox images, and the bottom row contains the radio * button images. Note that the bitmap is stored in bottom-up * format. Also, the first seven palette entries are used to * identify the different parts of the bitmaps so we can do the * appropriate color mappings based on the current button colors. * * Results: * None. * * Side effects: * Loads the "buttons" resource. * *---------------------------------------------------------------------- */ static void InitBoxes() { /* * For DLLs like Tk, the HINSTANCE is the same as the HMODULE. */ HMODULE module = (HINSTANCE) Tk_GetHINSTANCE(); HRSRC hrsrc; HGLOBAL hblk; LPBITMAPINFOHEADER newBitmap; DWORD size; hrsrc = FindResource(module, "buttons", RT_BITMAP); if (hrsrc) { hblk = LoadResource(module, hrsrc); boxesPtr = (LPBITMAPINFOHEADER)LockResource(hblk); } /* * Copy the DIBitmap into writable memory. */ if (boxesPtr != NULL && !(boxesPtr->biWidth % 4) && !(boxesPtr->biHeight % 2)) { size = boxesPtr->biSize + (1 << boxesPtr->biBitCount) * sizeof(RGBQUAD) + boxesPtr->biSizeImage; newBitmap = (LPBITMAPINFOHEADER) ckalloc(size); memcpy(newBitmap, boxesPtr, size); boxesPtr = newBitmap; boxWidth = boxesPtr->biWidth / 4; boxHeight = boxesPtr->biHeight / 2; boxesPalette = (DWORD*) (((LPSTR)boxesPtr) + boxesPtr->biSize); boxesBits = ((LPSTR)boxesPalette) + ((1 << boxesPtr->biBitCount) * sizeof(RGBQUAD)); } else { boxesPtr = NULL; } } /* *---------------------------------------------------------------------- * * UpdateButtonDefaults -- * * This function retrieves the current system defaults for * the button widgets. * * Results: * None. * * Side effects: * Updates the configuration defaults for buttons. * *---------------------------------------------------------------------- */ void UpdateButtonDefaults() { Tk_ConfigSpec *specPtr; int width = GetSystemMetrics(SM_CXEDGE); if (width == 0) { width = 1; } sprintf(defWidth, "%d", width); for (specPtr = tkpButtonConfigSpecs; specPtr->type != TK_CONFIG_END; specPtr++) { if (specPtr->offset == Tk_Offset(TkButton, borderWidth)) { specPtr->defValue = defWidth; } } } /* *---------------------------------------------------------------------- * * TkpCreateButton -- * * Allocate a new TkButton structure. * * Results: * Returns a newly allocated TkButton structure. * * Side effects: * Registers an event handler for the widget. * *---------------------------------------------------------------------- */ TkButton * TkpCreateButton(tkwin) Tk_Window tkwin; { WinButton *butPtr; if (!initialized) { UpdateButtonDefaults(); initialized = 1; } butPtr = (WinButton *)ckalloc(sizeof(WinButton)); butPtr->hwnd = NULL; return (TkButton *) butPtr; } /* *---------------------------------------------------------------------- * * CreateProc -- * * This function creates a new Button control, subclasses * the instance, and generates a new Window object. * * Results: * Returns the newly allocated Window object, or None on failure. * * Side effects: * Causes a new Button control to come into existence. * *---------------------------------------------------------------------- */ static Window CreateProc(tkwin, parentWin, instanceData) Tk_Window tkwin; /* Token for window. */ Window parentWin; /* Parent of new window. */ ClientData instanceData; /* Button instance data. */ { Window window; HWND parent; char *class; WinButton *butPtr = (WinButton *)instanceData; parent = Tk_GetHWND(parentWin); if (butPtr->info.type == TYPE_LABEL) { class = "STATIC"; butPtr->style = SS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS; } else { class = "BUTTON"; butPtr->style = BS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS; } butPtr->hwnd = CreateWindow(class, NULL, butPtr->style, Tk_X(tkwin), Tk_Y(tkwin), Tk_Width(tkwin), Tk_Height(tkwin), parent, NULL, Tk_GetHINSTANCE(), NULL); SetWindowPos(butPtr->hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE); butPtr->oldProc = (WNDPROC)SetWindowLong(butPtr->hwnd, GWL_WNDPROC, (DWORD) ButtonProc); window = Tk_AttachHWND(tkwin, butPtr->hwnd); return window; } /* *---------------------------------------------------------------------- * * TkpDestroyButton -- * * Free data structures associated with the button control. * * Results: * None. * * Side effects: * Restores the default control state. * *---------------------------------------------------------------------- */ void TkpDestroyButton(butPtr) TkButton *butPtr; { WinButton *winButPtr = (WinButton *)butPtr; HWND hwnd = winButPtr->hwnd; if (hwnd) { SetWindowLong(hwnd, GWL_WNDPROC, (DWORD) winButPtr->oldProc); } } /* *---------------------------------------------------------------------- * * TkpDisplayButton -- * * This procedure is invoked to display a button widget. It is * normally invoked as an idle handler. * * Results: * None. * * Side effects: * Information appears on the screen. The REDRAW_PENDING flag * is cleared. * *---------------------------------------------------------------------- */ void TkpDisplayButton(clientData) ClientData clientData; /* Information about widget. */ { TkWinDCState state; HDC dc; register TkButton *butPtr = (TkButton *) clientData; GC gc; Tk_3DBorder border; Pixmap pixmap; int x = 0; /* Initialization only needed to stop * compiler warning. */ int y, relief; register Tk_Window tkwin = butPtr->tkwin; int width, height; int defaultWidth; /* Width of default ring. */ int offset; /* 0 means this is a label widget. 1 means * it is a flavor of button, so we offset * the text to make the button appear to * move up and down as the relief changes. */ butPtr->flags &= ~REDRAW_PENDING; if ((butPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) { return; } border = butPtr->normalBorder; if ((butPtr->state == tkDisabledUid) && (butPtr->disabledFg != NULL)) { gc = butPtr->disabledGC; } else if ((butPtr->state == tkActiveUid) && !Tk_StrictMotif(butPtr->tkwin)) { gc = butPtr->activeTextGC; border = butPtr->activeBorder; } else { gc = butPtr->normalTextGC; } if ((butPtr->flags & SELECTED) && (butPtr->state != tkActiveUid) && (butPtr->selectBorder != NULL) && !butPtr->indicatorOn) { border = butPtr->selectBorder; } /* * Override the relief specified for the button if this is a * checkbutton or radiobutton and there's no indicator. */ relief = butPtr->relief; if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) { relief = (butPtr->flags & SELECTED) ? TK_RELIEF_SUNKEN : TK_RELIEF_RAISED; } /* * Compute width of default ring and offset for pushed buttons. */ if (butPtr->type == TYPE_BUTTON) { defaultWidth = ((butPtr->defaultState == tkActiveUid) ? butPtr->highlightWidth : 0); offset = 1; } else { defaultWidth = 0; if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) { offset = 1; } else { offset = 0; } } /* * In order to avoid screen flashes, this procedure redraws * the button in a pixmap, then copies the pixmap to the * screen in a single operation. This means that there's no * point in time where the on-sreen image has been cleared. */ pixmap = Tk_GetPixmap(butPtr->display, Tk_WindowId(tkwin), Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin)); Tk_Fill3DRectangle(tkwin, pixmap, border, 0, 0, Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT); /* * Display image or bitmap or text for button. */ if (butPtr->image != None) { Tk_SizeOfImage(butPtr->image, &width, &height); imageOrBitmap: TkComputeAnchor(butPtr->anchor, tkwin, 0, 0, butPtr->indicatorSpace + width, height, &x, &y); x += butPtr->indicatorSpace; if (relief == TK_RELIEF_SUNKEN) { x += offset; y += offset; } if (butPtr->image != NULL) { if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) { Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height, pixmap, x, y); } else { Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap, x, y); } } else { XSetClipOrigin(butPtr->display, gc, x, y); XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0, (unsigned int) width, (unsigned int) height, x, y, 1); XSetClipOrigin(butPtr->display, gc, 0, 0); } y += height/2; } else if (butPtr->bitmap != None) { Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height); goto imageOrBitmap; } else { RECT rect; TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY, butPtr->indicatorSpace + butPtr->textWidth, butPtr->textHeight, &x, &y); x += butPtr->indicatorSpace; if (relief == TK_RELIEF_SUNKEN) { x += offset; y += offset; } Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout, x, y, 0, -1); Tk_UnderlineTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout, x, y, butPtr->underline); /* * Draw the focus ring. If this is a push button then we need to put * it around the inner edge of the border, otherwise we put it around * the text. */ if (butPtr->flags & GOT_FOCUS && butPtr->type != TYPE_LABEL) { dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state); if (butPtr->type == TYPE_BUTTON || !butPtr->indicatorOn) { rect.top = butPtr->borderWidth + 1 + defaultWidth; rect.left = rect.top; rect.right = Tk_Width(tkwin) - rect.left; rect.bottom = Tk_Height(tkwin) - rect.top; } else { rect.top = y-2; rect.left = x-2; rect.right = x+butPtr->textWidth + 1; rect.bottom = y+butPtr->textHeight + 1; } SetTextColor(dc, gc->foreground); SetBkColor(dc, gc->background); DrawFocusRect(dc, &rect); TkWinReleaseDrawableDC(pixmap, dc, &state); } y += butPtr->textHeight/2; } /* * Draw the indicator for check buttons and radio buttons. At this * point x and y refer to the top-left corner of the text or image * or bitmap. */ if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn && boxesPtr) { int xSrc, ySrc; x -= butPtr->indicatorSpace; y -= butPtr->indicatorDiameter / 2; xSrc = (butPtr->flags & SELECTED) ? boxWidth : 0; if (butPtr->state == tkActiveUid) { xSrc += boxWidth*2; } ySrc = (butPtr->type == TYPE_RADIO_BUTTON) ? 0 : boxHeight; /* * Update the palette in the boxes bitmap to reflect the current * button colors. Note that this code relies on the layout of the * bitmap's palette. Also, all of the colors used to draw the * bitmap must be in the palette that is selected into the DC of * the offscreen pixmap. This requires that the static colors * be placed into the palette. */ boxesPalette[PAL_CHECK] = FlipColor(gc->foreground); boxesPalette[PAL_TOP_OUTER] = FlipColor(TkWinGetBorderPixels(tkwin, border, TK_3D_DARK_GC)); boxesPalette[PAL_TOP_INNER] = FlipColor(TkWinGetBorderPixels(tkwin, border, TK_3D_DARK2)); boxesPalette[PAL_BOTTOM_INNER] = FlipColor(TkWinGetBorderPixels(tkwin, border, TK_3D_LIGHT2)); boxesPalette[PAL_BOTTOM_OUTER] = FlipColor(TkWinGetBorderPixels(tkwin, border, TK_3D_LIGHT_GC)); if (butPtr->state == tkDisabledUid) { boxesPalette[PAL_INTERIOR] = FlipColor(TkWinGetBorderPixels(tkwin, border, TK_3D_LIGHT2)); } else if (butPtr->selectBorder != NULL) { boxesPalette[PAL_INTERIOR] = FlipColor(TkWinGetBorderPixels(tkwin, butPtr->selectBorder, TK_3D_FLAT_GC)); } else { boxesPalette[PAL_INTERIOR] = FlipColor(GetSysColor(COLOR_WINDOW)); } boxesPalette[PAL_BACKGROUND] = FlipColor(TkWinGetBorderPixels(tkwin, border, TK_3D_FLAT_GC)); dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state); StretchDIBits(dc, x, y, boxWidth, boxHeight, xSrc, ySrc, boxWidth, boxHeight, boxesBits, (LPBITMAPINFO)boxesPtr, DIB_RGB_COLORS, SRCCOPY); TkWinReleaseDrawableDC(pixmap, dc, &state); } /* * If the button is disabled with a stipple rather than a special * foreground color, generate the stippled effect. If the widget * is selected and we use a different background color when selected, * must temporarily modify the GC. */ if ((butPtr->state == tkDisabledUid) && ((butPtr->disabledFg == NULL) || (butPtr->image != NULL))) { if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn && (butPtr->selectBorder != NULL)) { XSetForeground(butPtr->display, butPtr->disabledGC, Tk_3DBorderColor(butPtr->selectBorder)->pixel); } XFillRectangle(butPtr->display, pixmap, butPtr->disabledGC, butPtr->inset, butPtr->inset, (unsigned) (Tk_Width(tkwin) - 2*butPtr->inset), (unsigned) (Tk_Height(tkwin) - 2*butPtr->inset)); if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn && (butPtr->selectBorder != NULL)) { XSetForeground(butPtr->display, butPtr->disabledGC, Tk_3DBorderColor(butPtr->normalBorder)->pixel); } } /* * Draw the border and traversal highlight last. This way, if the * button's contents overflow they'll be covered up by the border. */ if (relief != TK_RELIEF_FLAT) { Tk_Draw3DRectangle(tkwin, pixmap, border, defaultWidth, defaultWidth, Tk_Width(tkwin) - 2*defaultWidth, Tk_Height(tkwin) - 2*defaultWidth, butPtr->borderWidth, relief); } if (defaultWidth != 0) { dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state); TkWinFillRect(dc, 0, 0, Tk_Width(tkwin), defaultWidth, butPtr->highlightColorPtr->pixel); TkWinFillRect(dc, 0, 0, defaultWidth, Tk_Height(tkwin), butPtr->highlightColorPtr->pixel); TkWinFillRect(dc, 0, Tk_Height(tkwin) - defaultWidth, Tk_Width(tkwin), defaultWidth, butPtr->highlightColorPtr->pixel); TkWinFillRect(dc, Tk_Width(tkwin) - defaultWidth, 0, defaultWidth, Tk_Height(tkwin), butPtr->highlightColorPtr->pixel); TkWinReleaseDrawableDC(pixmap, dc, &state); } /* * Copy the information from the off-screen pixmap onto the screen, * then delete the pixmap. */ XCopyArea(butPtr->display, pixmap, Tk_WindowId(tkwin), butPtr->copyGC, 0, 0, (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin), 0, 0); Tk_FreePixmap(butPtr->display, pixmap); } /* *---------------------------------------------------------------------- * * TkpComputeButtonGeometry -- * * After changes in a button's text or bitmap, this procedure * recomputes the button's geometry and passes this information * along to the geometry manager for the window. * * Results: * None. * * Side effects: * The button's window may change size. * *---------------------------------------------------------------------- */ void TkpComputeButtonGeometry(butPtr) register TkButton *butPtr; /* Button whose geometry may have changed. */ { int width, height, avgWidth; Tk_FontMetrics fm; if (butPtr->highlightWidth < 0) { butPtr->highlightWidth = 0; } butPtr->inset = butPtr->highlightWidth + butPtr->borderWidth; butPtr->indicatorSpace = 0; if (!boxesPtr) { InitBoxes(); } if (butPtr->image != NULL) { Tk_SizeOfImage(butPtr->image, &width, &height); imageOrBitmap: if (butPtr->width > 0) { width = butPtr->width; } if (butPtr->height > 0) { height = butPtr->height; } if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) { butPtr->indicatorSpace = boxWidth * 2; butPtr->indicatorDiameter = boxHeight; } } else if (butPtr->bitmap != None) { Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height); goto imageOrBitmap; } else { Tk_FreeTextLayout(butPtr->textLayout); butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont, butPtr->text, -1, butPtr->wrapLength, butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight); width = butPtr->textWidth; height = butPtr->textHeight; avgWidth = Tk_TextWidth(butPtr->tkfont, "0", 1); Tk_GetFontMetrics(butPtr->tkfont, &fm); if (butPtr->width > 0) { width = butPtr->width * avgWidth; } if (butPtr->height > 0) { height = butPtr->height * fm.linespace; } if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) { butPtr->indicatorDiameter = boxHeight; butPtr->indicatorSpace = butPtr->indicatorDiameter + avgWidth; } /* * Increase the inset to allow for the focus ring. */ if (butPtr->type != TYPE_LABEL) { butPtr->inset += 3; } } /* * When issuing the geometry request, add extra space for the indicator, * if any, and for the border and padding, plus an extra pixel so the * display can be offset by 1 pixel in either direction for the raised * or lowered effect. */ if ((butPtr->image == NULL) && (butPtr->bitmap == None)) { width += 2*butPtr->padX; height += 2*butPtr->padY; } if ((butPtr->type == TYPE_BUTTON) || ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn)) { width += 1; height += 1; } Tk_GeometryRequest(butPtr->tkwin, (int) (width + butPtr->indicatorSpace + 2*butPtr->inset), (int) (height + 2*butPtr->inset)); Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset); } /* *---------------------------------------------------------------------- * * ButtonProc -- * * This function is call by Windows whenever an event occurs on * a button control created by Tk. * * Results: * Standard Windows return value. * * Side effects: * May generate events. * *---------------------------------------------------------------------- */ static LRESULT CALLBACK ButtonProc(hwnd, message, wParam, lParam) HWND hwnd; UINT message; WPARAM wParam; LPARAM lParam; { LRESULT result; WinButton *butPtr; Tk_Window tkwin = Tk_HWNDToWindow(hwnd); if (tkwin == NULL) { panic("ButtonProc called on an invalid HWND"); } butPtr = (WinButton *)((TkWindow*)tkwin)->instanceData; switch(message) { case WM_ERASEBKGND: return 0; case BM_GETCHECK: if (((butPtr->info.type == TYPE_CHECK_BUTTON) || (butPtr->info.type == TYPE_RADIO_BUTTON)) && butPtr->info.indicatorOn) { return (butPtr->info.flags & SELECTED) ? BST_CHECKED : BST_UNCHECKED; } return 0; case BM_GETSTATE: { DWORD state = 0; if (((butPtr->info.type == TYPE_CHECK_BUTTON) || (butPtr->info.type == TYPE_RADIO_BUTTON)) && butPtr->info.indicatorOn) { state = (butPtr->info.flags & SELECTED) ? BST_CHECKED : BST_UNCHECKED; } if (butPtr->info.flags & GOT_FOCUS) { state |= BST_FOCUS; } return state; } case WM_ENABLE: break; case WM_PAINT: { PAINTSTRUCT ps; BeginPaint(hwnd, &ps); EndPaint(hwnd, &ps); TkpDisplayButton((ClientData)butPtr); return 0; } case BN_CLICKED: { int code; Tcl_Interp *interp = butPtr->info.interp; if (butPtr->info.state != tkDisabledUid) { Tcl_Preserve((ClientData)interp); code = TkInvokeButton((TkButton*)butPtr); if (code != TCL_OK && code != TCL_CONTINUE && code != TCL_BREAK) { Tcl_AddErrorInfo(interp, "\n (button invoke)"); Tcl_BackgroundError(interp); } Tcl_Release((ClientData)interp); } Tcl_ServiceAll(); return 0; } default: if (Tk_TranslateWinEvent(hwnd, message, wParam, lParam, &result)) { return result; } } return DefWindowProc(hwnd, message, wParam, lParam); }