79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
|
/*
|
||
|
|
TrackBar
|
||
|
|
|
||
|
|
All the useful information for a trackbar.
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
HWND hwnd; // our window handle
|
||
|
|
HDC hdc; // current DC
|
||
|
|
|
||
|
|
LONG lLogMin; // Logical minimum
|
||
|
|
LONG lLogMax; // Logical maximum
|
||
|
|
LONG lLogPos; // Logical position
|
||
|
|
|
||
|
|
LONG lSelStart; // Logical selection start
|
||
|
|
LONG lSelEnd; // Logical selection end
|
||
|
|
|
||
|
|
UINT wThumbWidth; // Width of the thumb
|
||
|
|
UINT wThumbHeight; // Height of the thumb
|
||
|
|
|
||
|
|
int iSizePhys; // Size of where thumb lives
|
||
|
|
RECT rc; // track bar rect.
|
||
|
|
|
||
|
|
RECT Thumb; // Rectangle we current thumb
|
||
|
|
DWORD dwDragPos; // Logical position of mouse while dragging.
|
||
|
|
|
||
|
|
UINT Flags; // Flags for our window
|
||
|
|
int Timer; // Our timer.
|
||
|
|
UINT Cmd; // The command we're repeating.
|
||
|
|
|
||
|
|
int nTics; // number of ticks.
|
||
|
|
PDWORD pTics; // the tick marks.
|
||
|
|
|
||
|
|
} TrackBar, *PTrackBar;
|
||
|
|
|
||
|
|
// Trackbar flags
|
||
|
|
|
||
|
|
#define TBF_NOTHUMB 0x0001 // No thumb because not wide enough.
|
||
|
|
#define TBF_SELECTION 0x0002 // a selection has been established (draw the range)
|
||
|
|
|
||
|
|
/*
|
||
|
|
useful constants.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define REPEATTIME 500 // mouse auto repeat 1/2 of a second
|
||
|
|
#define TIMER_ID 1
|
||
|
|
|
||
|
|
#define GWW_TRACKMEM 0 /* handle to track bar memory */
|
||
|
|
#define EXTRA_TB_BYTES sizeof(PTrackBar) /* Total extra bytes. */
|
||
|
|
|
||
|
|
/*
|
||
|
|
Useful defines.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef WIN32
|
||
|
|
#define TrackBarCreate(hwnd) SetWindowLong(hwnd,GWW_TRACKMEM,(LONG)LocalAlloc(LPTR,sizeof(TrackBar)))
|
||
|
|
#define TrackBarDestroy(hwnd) LocalFree((HLOCAL)GetWindowLong(hwnd,GWW_TRACKMEM))
|
||
|
|
#define TrackBarLock(hwnd) (PTrackBar)GetWindowLong(hwnd,GWW_TRACKMEM)
|
||
|
|
#else
|
||
|
|
#define TrackBarCreate(hwnd) SetWindowWord(hwnd,GWW_TRACKMEM,(WORD)LocalAlloc(LPTR,sizeof(TrackBar)))
|
||
|
|
#define TrackBarDestroy(hwnd) LocalFree((HLOCAL)GetWindowWord(hwnd,GWW_TRACKMEM))
|
||
|
|
#define TrackBarLock(hwnd) (PTrackBar)GetWindowWord(hwnd,GWW_TRACKMEM)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
Function Prototypes
|
||
|
|
*/
|
||
|
|
|
||
|
|
static void NEAR PASCAL DoTrack(PTrackBar, int, DWORD);
|
||
|
|
static UINT NEAR PASCAL WTrackType(PTrackBar, LONG);
|
||
|
|
static void NEAR PASCAL TBTrackInit(PTrackBar, LONG);
|
||
|
|
static void NEAR PASCAL TBTrackEnd(PTrackBar, LONG);
|
||
|
|
static void NEAR PASCAL TBTrack(PTrackBar, LONG);
|
||
|
|
static void NEAR PASCAL DrawThumb(PTrackBar);
|
||
|
|
static HBRUSH NEAR PASCAL SelectColorObjects(PTrackBar, BOOL);
|
||
|
|
static void NEAR PASCAL SetTBCaretPos(PTrackBar);
|
||
|
|
|
||
|
|
extern DWORD FAR PASCAL lMulDiv32(DWORD, DWORD, DWORD);
|