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- /****************************************************************************/
- /* */
- /* DISPDIB.H - Include file for DisplayDib() function. */
- /* */
- /* Note: You must include WINDOWS.H before including this file. */
- /* */
- /* Copyright (c) 1990-1995, Microsoft Corp. All rights reserved. */
- /* */
- /****************************************************************************/
-
- // DisplayDib() error return codes
- #define DISPLAYDIB_NOERROR 0x0000 // success
- #define DISPLAYDIB_NOTSUPPORTED 0x0001 // function not supported
- #define DISPLAYDIB_INVALIDDIB 0x0002 // null or invalid DIB header
- #define DISPLAYDIB_INVALIDFORMAT 0x0003 // invalid DIB format
- #define DISPLAYDIB_INVALIDTASK 0x0004 // not called from current task
- #define DISPLAYDIB_STOP 0x0005 // stop requested
- #define DISPLAYDIB_NOTACTIVE 0x0006 // DisplayDibWindow not foreground
- #define DISPLAYDIB_BADSIZE 0x0007 //
-
- // flags for <wFlags> parameter of DisplayDib()
- #define DISPLAYDIB_NOPALETTE 0x0010 // don't set palette
- #define DISPLAYDIB_NOCENTER 0x0020 // don't center image
- #define DISPLAYDIB_NOWAIT 0x0040 // don't wait before returning
- #define DISPLAYDIB_NOIMAGE 0x0080 // don't draw image
- #define DISPLAYDIB_ZOOM2 0x0100 // stretch by 2
- #define DISPLAYDIB_DONTLOCKTASK 0x0200 // don't lock current task
- #define DISPLAYDIB_TEST 0x0400 // testing the command
- #define DISPLAYDIB_NOFLIP 0x0800 // dont page flip
- #define DISPLAYDIB_BEGIN 0x8000 // start of multiple calls
- #define DISPLAYDIB_END 0x4000 // end of multiple calls
-
- #define DISPLAYDIB_MODE 0x000F // mask for display mode
- #define DISPLAYDIB_MODE_DEFAULT 0x0000 // default display mode
- #define DISPLAYDIB_MODE_320x200x8 0x0001 // 320-by-200
- #define DISPLAYDIB_MODE_320x240x8 0x0005 // 320-by-240
-
- //
- // a Win32 app must use the window class the function
- // versions are not available
- //
- #ifndef _WIN32
-
- // function prototypes
- UINT FAR PASCAL DisplayDib(LPBITMAPINFOHEADER lpbi, LPSTR lpBits, WORD wFlags);
- UINT FAR PASCAL DisplayDibEx(LPBITMAPINFOHEADER lpbi, int x, int y, LPSTR lpBits, WORD wFlags);
-
- #define DisplayDibBegin() DisplayDib(NULL, NULL, DISPLAYDIB_BEGIN|DISPDIB_NOWAIT)
- #define DisplayDibEnd() DisplayDib(NULL, NULL, DISPLAYDIB_END|DISPDIB_NOWAIT)
-
- #endif
-
- //
- // DisplayDibWindow class.
- //
- // simple interface to DISPDIB as a window class.
- // draw images and create a fullscreen window in one easy step.
- //
- // advantages over calling the APIs directly.
- //
- // if you show the window it will handle enabling/disabling
- // fullscreen mode when it has a activation.
- //
- // while in fullscreen mode, window will be sized to
- // cover entire display preventing other apps from getting
- // clicked on. (when visible)
- //
- // if window looses activation, fullscreen mode will be disabled
- // DDM_DRAW will return DISPLAYDIB_NOTACTIVE if you try to draw
- //
- // forwards all mouse and keyboard events to owner, easy way
- // to take over entire screen.
- //
- // alows interop with a Win32 application (via WM_COPYDATA)
- // NOTE WM_COPYDATA does not actualy copy anything if the
- // window belongs to the calling thread. it will do a copy
- // if the window is owned by another thread....
- //
- // you can use a DisplayDibWindow in two ways.....
- //
- // hidden window
- //
- // if the window is hidden, you must use the
- // DDM_BEGIN and DDM_END message to enable/disable
- // fullscreen mode manualy when your app is activated deactivated.
- //
- // visible toplevel window
- //
- // if you show the window it will take over the entire screen
- // and forward all mouse/keyboard input to its owner.
- //
- // it will enter fullscreen automaticly when it is shown.
- //
- // it will leave fullscreen and hide it self it another app
- // grabs the focus.
- //
- // class name: "DisplayDibWindow"
- // class is registered when DISPDIB.DLL is loaded.
- // as a global class.
- //
- // messages:
- //
- // DDM_SETFMT set new DIB format or program a new palette
- //
- // fullscreen mode, will use best mode
- // for displaying the passed DIB format.
- // defaul is 320x240x8 tripple buffered
- //
- // the palette will be programed with the color
- // table of the passed BITMAPINFOHEADER.
- //
- // the format is a BITMAPINFOHEADER followed by a color table.
- //
- // you must set a format before doing a begin, end or draw
- // you can set a 320x200 or a 320x24 mode by selecting
- // a DIB of the format you want.
- //
- // if you do a setfmt while fullscreen mode is active only the
- // the palette will be changed the new size (if any) wont
- // happen until the next begin.
- //
- // wParam = 0
- // lParam = LPBITMAPINFOHEADER
- //
- // returns 0 if success else DISPLAYDIB_* error code.
- //
- // DDM_DRAW draws DIB data to fullscreen
- // format is assumed the same as format passed to
- // DDM_BEGIN or DDM_FMT
- //
- // wParam = flags
- // lParam = bits pointer.
- //
- // returns 0 if success else DISPLAYDIB_* error code.
- //
- // DDM_CLOSE destroy window *and* free the DLL
- //
- // DDM_BEGIN enter DISPDIB mode.
- // wParam = flags
- // lParam = 0
- //
- // returns 0 if success else DISPLAYDIB_* error code.
- //
- // DDM_END leave DISPDIB mode.
- // wParam = flags
- // lParam = 0
- //
- // returns 0 if success else DISPLAYDIB_* error code.
- //
- // WM_COPYDATA allows a Win32 app to send a DDM_ message, that requires
- // a pointer.
- //
- // wParam = hwnd of sender
- // lParam = PCOPYDATASTRUCT
- // dwData - LOWORD: DDM_* message value.
- // dwData - HIWORD: wParam for message
- // lpData - lParam (pointer to a BITMAPINFOHEADER or bits)
- // cbData - size of data
- //
- // returns 0 if success else DISPLAYDIB_* error code.
- //
-
- #define DISPLAYDIB_WINDOW_CLASS "DisplayDibWindow"
- #define DISPLAYDIB_DLL "DISPDIB.DLL"
-
- #define DDM_SETFMT WM_USER+0
- #define DDM_DRAW WM_USER+1
- #define DDM_CLOSE WM_USER+2
- #define DDM_BEGIN WM_USER+3
- #define DDM_END WM_USER+4
-
- //
- // inline function to send a message to a DisplayDibWindow
- //
- __inline UINT DisplayDibWindowMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, DWORD cbSize)
- {
- #if defined(_WIN32) || defined(WIN32)
- COPYDATASTRUCT cds;
- cds.dwData = MAKELONG(msg, wParam);
- cds.cbData = lParam ? cbSize : 0;
- cds.lpData = (LPVOID)lParam;
- return (UINT)SendMessage(hwnd, WM_COPYDATA, (WPARAM)(HWND)NULL, (LPARAM)(LPVOID)&cds);
- #else
- return (UINT)SendMessage(hwnd, msg, wParam, lParam);
- #endif
- }
-
- //
- // inline function to create a DisplayDibWindow
- //
- __inline HWND DisplayDibWindowCreateEx(HWND hwndParent, HINSTANCE hInstance, DWORD dwStyle)
- {
- #if defined(_WIN32) || defined(WIN32)
- DWORD show = 2;
- DWORD zero = 0;
- LPVOID params[4] = {NULL, &zero, &show, 0};
-
- if ((UINT)LoadModule(DISPLAYDIB_DLL, ¶ms) < (UINT)HINSTANCE_ERROR)
- return NULL; // loading DISPDIB did not work
- #else
- if ((UINT)LoadLibrary(DISPLAYDIB_DLL) < (UINT)HINSTANCE_ERROR)
- return NULL; // loading DISPDIB did not work
- #endif
-
- return CreateWindow(DISPLAYDIB_WINDOW_CLASS,"",dwStyle,0, 0,
- GetSystemMetrics(SM_CXSCREEN),GetSystemMetrics(SM_CYSCREEN),
- hwndParent, NULL,
- (hInstance ? hInstance : GetWindowInstance(hwndParent)), NULL);
- }
-
- //
- // helper macros for a DisplayDibWindow
- //
- // DisplayDibWindowCreate
- //
- // used to create a toplevel WS_POPUP window.
- //
- // DisplayDibWindowCreateEx
- //
- // used to create a non-toplevel window, of a custom style.
- //
- // DisplayDibWindowSetFmt
- //
- // macro to send the DDM_SETFMT message.
- //
- // DisplayDibWindowDraw
- //
- // macro to send the DDM_DRAW message
- //
- // DisplayDibWindowBegin
- //
- // macro used to show the window
- //
- // DisplayDibWindowEnd
- //
- // macro used to hide the window
- //
- // DisplayDibWindowBeginEx
- //
- // macro used to send a DDM_BEGIN message, used with hidden windows
- //
- // DisplayDibWindowEndEx
- //
- // macro used to send a DDM_END message, used with hidden windows
- //
- // DisplayDibWindowClose
- //
- // macro used to send a DDM_CLOSE message
- // this will destroy the window and free the DLL.
- //
- // NOTES
- // warning DisplayDibWindowBegin/End will show the DisplayDibWindow
- // this will steal actiation away from your app. all mouse keyboard
- // input will go to the dispdib window and it will forward it to
- // its owner (make sure you set the right owner on create)
- //
- // this may cause a problem for your app, you can keep the window
- // hidden be using the DDM_BEGIN/END messages in this case.
- //
- #define DisplayDibWindowCreate(hwndP, hInstance) DisplayDibWindowCreateEx(hwndP, hInstance, WS_POPUP)
- #define DisplayDibWindowSetFmt(hwnd, lpbi) DisplayDibWindowMessage(hwnd, DDM_SETFMT, 0, (LPARAM)(LPVOID)(lpbi), sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD))
- #define DisplayDibWindowDraw(hwnd, flags, bits, size) DisplayDibWindowMessage(hwnd, DDM_DRAW, (WPARAM)(UINT)(flags), (LPARAM)(LPVOID)(bits), (DWORD)(size))
-
- #ifdef __cplusplus
- #define DisplayDibWindowBegin(hwnd) ::ShowWindow(hwnd, SW_SHOWNORMAL)
- #define DisplayDibWindowEnd(hwnd) ::ShowWindow(hwnd, SW_HIDE)
- #define DisplayDibWindowBeginEx(hwnd, f) ::SendMessage(hwnd, DDM_BEGIN, (WPARAM)(UINT)(f), 0)
- #define DisplayDibWindowEndEx(hwnd) ::SendMessage(hwnd, DDM_END, 0, 0)
- #define DisplayDibWindowClose(hwnd) ::SendMessage(hwnd, DDM_CLOSE, 0, 0)
- #else
- #define DisplayDibWindowBegin(hwnd) ShowWindow(hwnd, SW_SHOWNORMAL)
- #define DisplayDibWindowEnd(hwnd) ShowWindow(hwnd, SW_HIDE)
- #define DisplayDibWindowBeginEx(hwnd) SendMessage(hwnd, DDM_BEGIN, 0, 0)
- #define DisplayDibWindowEndEx(hwnd) SendMessage(hwnd, DDM_END, 0, 0)
- #define DisplayDibWindowClose(hwnd) SendMessage(hwnd, DDM_CLOSE, 0, 0)
- #endif
-