//--------------------------------------------------------------------------------------
// OnSetMinMax
// Description: Sets the slider range.
//
// Handler for WM_SLIDER_SET_MIN_MAX message.
//--------------------------------------------------------------------------------------
LRESULT OnSetMinMax(HWND hwnd, LONG posMin, LONG posMax, Slider_Info *pInfo)
{
pInfo->posMin = posMin;
pInfo->posMax = posMax;
if (pInfo->posThumb < posMin)
{
SetSliderPosition(hwnd, posMin, pInfo);
}
else if (pInfo->posThumb > posMax)
{
SetSliderPosition(hwnd, posMax, pInfo);
}
return TRUE;
}
void SetControlPosition ( int iControlID, int iPosition )
{
switch ( g_pControls[iControlID].sType )
{
case WINCONTROL_PROGRESS : SetProgressPosition ( iControlID, iPosition ); break;
case WINCONTROL_SLIDER : SetSliderPosition ( iControlID, iPosition ); break;
case WINCONTROL_SCROLLBAR : SetScrollBarPosition ( iControlID, iPosition ); break;
}
}
LRESULT OnSetPosition(HWND hwnd, LONG pos, Slider_Info *pInfo)
{
if (pos < pInfo->posMin || pos > pInfo->posMax)
{
return FALSE;
}
else
{
SetSliderPosition(hwnd, pos, pInfo);
return TRUE;
}
}
LRESULT OnMouseMove(HWND hwnd, LONG x, LONG /*y*/, Slider_Info *pInfo)
{
// If the control is selected, update the slider position
// and notify the owner window.
if (pInfo->bThumbDown)
{
SetSliderPosition(hwnd, PixelToLogical(hwnd, x, pInfo), pInfo);
NotifyParent(hwnd, SLIDER_NOTIFY_DRAG, pInfo);
}
return 0;
}
LRESULT OnLButtonDown(HWND hwnd, LONG x, LONG /*y*/, Slider_Info *pInfo)
{
// Move the slider to the mouse position.
SetSliderPosition(hwnd, PixelToLogical(hwnd, x, pInfo), pInfo);
// Set the thumb-down flag.
pInfo->bThumbDown = TRUE;
// Start capturing mouse moves so we can update the slider position.
SetCapture(hwnd);
// Notify the owner window that the control was selected.
NotifyParent(hwnd, SLIDER_NOTIFY_SELECT, pInfo);
return 0;
}
int MakeControlSlider ( int iControlID, int iStyle, int iExtendedStyle, int iMin, int iMax, int iX, int iY, int iWidth, int iHeight )
{
// Assign the style
DWORD dwExtendedStyle = GetExtendedStyle ( iExtendedStyle );
DWORD dwSelectStyle = TBS_HORZ | TBS_NOTICKS | TBS_BOTH;
switch ( iStyle )
{
case 1 : dwSelectStyle = TBS_HORZ | TBS_NOTICKS | TBS_BOTH; break;
case 2 : dwSelectStyle = TBS_VERT | TBS_NOTICKS | TBS_BOTH; break;
case 3 : dwSelectStyle = TBS_HORZ; break;
case 4 : dwSelectStyle = TBS_VERT; break;
case 5 : dwSelectStyle = TBS_HORZ | TBS_AUTOTICKS; break;
case 6 : dwSelectStyle = TBS_VERT | TBS_AUTOTICKS; break;
case 7 : dwSelectStyle = TBS_ENABLESELRANGE; break;
}
// Create control
MaintainGlobalHWND();
if ( !CreateControl ( iControlID, g_pGlob->hWnd, TRACKBAR_CLASS, dwExtendedStyle, dwSelectStyle, "", iX, iY, iWidth, iHeight ) )
return 0;
// Ticks always represented by a line
SendMessage ( g_pControls[iControlID].hWnd, TBM_SETTICFREQ, (WPARAM)1, 0 );
// Setup control
SetSliderRange ( iControlID, iMin, iMax );
SetSliderPosition ( iControlID, iMin+((iMax-iMin)/2) );
// Subclass to get access to all control messages directly
g_pControls [ iControlID ].lOriginalWinProc = SetWindowLong ( g_pControls [ iControlID ].hWnd, GWL_WNDPROC, (LONG)SubClassControlWinProc );
// Update safe rects after new addition
UpdateSafeRectsArray();
// Success
return 1;
}
