138 lines
5 KiB
C
138 lines
5 KiB
C
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/* Defines for WinOldAppHackoMatic flags which win386 oldapp can send to us.
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* These are kept in user's global variable winOldAppHackoMaticFlags
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*/
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/*
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* WOAHACK_CHECKALTKEYSTATE
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*
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* This is sent from WinOldAp to USER when the user has just pressed
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* Alt+Space. When the user does that, keyboard focus shifts from
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* the DOS box to Windows. This is particularly weird because the
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* focus is changing while the user has a key down. The message is
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* sent to USER to let it know that the Alt key may be in a funky
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* state right now.
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*
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* The value of this must be a power of two because it is used
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* in the winOldAppHackoMaticFlags variable as a bitmask.
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*
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* WOAHACK_IGNOREALTKEYDOWN
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*
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* This is used internally by USER to keep track of the Alt key
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* state, triggered by the WOAHACK_CHECKALTKEYSTATE message.
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*
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* The value of this must be a power of two because it is used
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* in the winOldAppHackoMaticFlags variable as a bitmask.
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*
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* WOAHACK_DISABLEREPAINTSCREEN
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*
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* This is sent from WinOldAp to USER when the user has initiated
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* an Alt+Tab sequence from a fullscreen VM. This causes USER to
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* defer the RepaintScreen that will be sent by the display driver.
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* This speeds up Alt+Tab'ing. When the Alt+Tab is complete,
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* if the user selected another fullscreen DOS box, USER will ignore
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* the RepaintScreen altogether, since it's about to lose the
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* display focus anyway. In all other cases, the RepaintScreen will
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* be performed once the Alt+Tab is complete.
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*
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* WOAHACK_LOSINGDISPLAYFOCUS
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* WOAHACK_GAININGDISPLAYFOCUS
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*
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* These messages are sent from WinOldAp to USER when the display
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* focus is changing. The WOAHACK_LOSINGDISPLAYFOCUS message is
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* sent *before* Windows is about to lose focus, and the
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* WOAHACK_GAININGDISPLAYFOCUS is sent *after* Windows has regained
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* the display focus.
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*
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* WinOldAp sends these messages whenever it is about to set the
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* VM focus. It doesn't check if the message is a repeat of a
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* previous message. (So, for example, USER may receive three
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* copies of WOAHACK_GAININGDISPLAYFOCUS.) USER maintains an
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* internal variable to keep track of whether each receipt of the
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* message is a change in the focus or just a redundant notification.
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*
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* USER uses these messages to turn off the timer that is normally
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* used to trigger the mouse drawing code in the display driver
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* while Windows does not have the display focus, and to turn the
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* timer back on once Windows gets the display back.
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*
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* This is needed to make sure the display driver is otherwise
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* quiet when the int 2F is dispatched from the VDD to notify the
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* display driver that the focus has changed. Not doing this
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* opens the possibility of re-entrancy in the display driver.
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*
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* WOAHACK_IMAWINOLDAPSORTOFGUY
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*
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* WinOldAp needs to call this API once with this flag set so that
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* USER can mark winoldap's queue as being winoldap. USER needs
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* to know that a particular queue is winoldap for several reasons
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* having to do with task switching and priorities.
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*/
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#define WOAHACK_CHECKALTKEYSTATE 1
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#define WOAHACK_IGNOREALTKEYDOWN 2
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#define WOAHACK_DISABLEREPAINTSCREEN 3
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#define WOAHACK_LOSINGDISPLAYFOCUS 4
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#define WOAHACK_GAININGDISPLAYFOCUS 5
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#define WOAHACK_IAMAWINOLDAPSORTOFGUY 6
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/* ------ After this point comes information that can be publicized ------- */
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/* WinOldApp related flags and Macros */
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/*
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* These property bits are stored in the flWinOldAp property of
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* WinOldAp's main window. They are provided so that USER and other
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* applications can query the state of the DOS box.
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*
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* These properties are read-only. Changing them will cause Windows
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* to get confused.
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*
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* woapropIsWinOldAp
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*
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* This bit is always set.
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*
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* woapropFullscreen
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*
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* Set if this a fullscreen DOS box rather than a windowed DOS box.
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* Note that this bit is set even if WinOldAp does not have focus.
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* (E.g., when iconic.) Its purpose is to indicate what the state
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* of the DOS box would be *if* it were to be activated.
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*
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* woapropActive
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*
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* Set if WinOldAp is active. Note that one cannot merely
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* check IsIconic(hwnd) because fullscreen DOS boxes are always
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* iconic.
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*
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* None of the other bits are used, although names for some of them
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* have been chosen. This does not represent any commitment to use
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* them for the purpose the name suggests.
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*
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* Other properties we may think of adding...
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*
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* hvm
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*
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* This extended property contains the 32-bit VM handle.
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*
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* hprop
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*
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* This property contains the property handle being used
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* by the DOS box. (For utilities which want to be able
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* to modify the properties of a running DOS box, perhaps.)
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*
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*/
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#define WINOLDAP_PROP_NAME "flWinOldAp"
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extern ATOM atmWinOldAp;
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#define WinOldApFlag(hwnd, flag) ((UINT)GetPropEx(hwnd, MAKEINTATOM(atmWinOldAp)) & woaprop##flag)
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#define woapropIsWinOldAp 1
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#define woapropFullscreen 2
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#define woapropActive 4
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#define woapropIdle 8
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#define woapropClosable 64
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#define IsWinOldApHwnd(hwnd) WinOldApFlag(hwnd, IsWinOldAp)
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#define IsFullscreen(hwnd) WinOldApFlag(hwnd, Fullscreen)
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