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Audit the scroll control.
Reorganize the documentation in a more readable format.
This commit is contained in:
Dimitrie O. Paun
Alexandre Julliard
parent
91e7437aab
commit
861f6240a2
@ -17,6 +17,20 @@
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* NOTES
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*
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* This code was audited for completeness against the documented features
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* of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun.
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*
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* Unless otherwise noted, we believe this code to be complete, as per
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* the specification mentioned above.
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* If you discover missing features, or bugs, please note them below.
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*
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* TODO:
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* - GetScrollBarInfo
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* - SBM_GETSCROLLBARINFO
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* - SCROLLBARINFO
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*/
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#include <stdarg.h>
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@ -745,11 +759,13 @@ static void SCROLL_RefreshScrollBar( HWND hwnd, INT nBar,
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* SCROLL_HandleKbdEvent
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*
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* Handle a keyboard event (only for SB_CTL scrollbars with focus).
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* wParam [I] Variable input including enable state
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* lParam [I] Variable input including input point
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*/
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static void SCROLL_HandleKbdEvent(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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WPARAM wParam /* [in] Variable input including enable state */,
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LPARAM lParam /* [in] Variable input including input point */)
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static void SCROLL_HandleKbdEvent(HWND hwnd, WPARAM wParam, LPARAM lParam)
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{
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TRACE("hwnd=%p wParam=%d lParam=%ld\n", hwnd, wParam, lParam);
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@ -1090,10 +1106,12 @@ void SCROLL_TrackScrollBar( HWND hwnd, INT scrollbar, POINT pt )
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* SCROLL_CreateScrollBar
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*
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* Create a scroll bar
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* lpCreate [I] The style and place of the scroll bar
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*/
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static void SCROLL_CreateScrollBar(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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LPCREATESTRUCTW lpCreate /* [in] The style and place of the scroll bar */)
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static void SCROLL_CreateScrollBar(HWND hwnd, LPCREATESTRUCTW lpCreate)
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{
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LPSCROLLBAR_INFO info = SCROLL_GetScrollBarInfo(hwnd, SB_CTL);
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if (!info) return;
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@ -1147,11 +1165,13 @@ LPCREATESTRUCTW lpCreate /* [in] The style and place of the scroll bar */)
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* SCROLL_GetScrollInfo
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*
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* Internal helper for the API function
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* info [IO] fMask specifies which values to retrieve
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*/
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static BOOL SCROLL_GetScrollInfo(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
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LPSCROLLINFO info /* [in/out] (fMask specifies which values to retrieve) */)
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static BOOL SCROLL_GetScrollInfo(HWND hwnd, INT nBar, LPSCROLLINFO info)
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{
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LPSCROLLBAR_INFO infoPtr;
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@ -1179,10 +1199,12 @@ LPSCROLLINFO info /* [in/out] (fMask specifies which values to retrieve) */)
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* SCROLL_GetScrollPos
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*
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* Internal helper for the API function
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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*/
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static INT SCROLL_GetScrollPos(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */)
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static INT SCROLL_GetScrollPos(HWND hwnd, INT nBar)
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{
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LPSCROLLBAR_INFO infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar);
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return infoPtr ? infoPtr->curVal: 0;
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@ -1194,13 +1216,15 @@ INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */)
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*
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* Internal helper for the API function
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* lpMin [O] Where to store minimum value
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* lpMax [O] Where to store maximum value
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*
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* RETURNS STD
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*/
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static BOOL SCROLL_GetScrollRange(
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HWND hwnd, /* [in] Handle of window */
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INT nBar, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
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LPINT lpMin, /* [out] Where to store minimum value */
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LPINT lpMax /* [out] Where to store maximum value */)
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static BOOL SCROLL_GetScrollRange(HWND hwnd, INT nBar, LPINT lpMin, LPINT lpMax)
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{
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LPSCROLLBAR_INFO infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar);
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@ -1214,12 +1238,14 @@ LPINT lpMax /* [out] Where to store maximum value */)
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/*************************************************************************
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* SCROLL_SetScrollRange
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* lpMin [I] Minimum value
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* lpMax [I] Maximum value
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*
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*/
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static BOOL SCROLL_SetScrollRange(
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HWND hwnd, /* [in] Handle of window */
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INT nBar, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
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INT minVal, /* [out] minimum value */
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INT maxVal /* [out] maximum value */)
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static BOOL SCROLL_SetScrollRange(HWND hwnd, INT nBar, INT minVal, INT maxVal)
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{
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LPSCROLLBAR_INFO infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar);
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@ -1425,6 +1451,12 @@ static LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT message, WPARAM wParam,
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* SetScrollInfo can be used to set the position, upper bound,
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* lower bound, and page size of a scrollbar control.
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* info [I] Specifies what to change and new values
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* bRedraw [I] Should scrollbar be redrawn afterwards?
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*
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* RETURNS
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* Scrollbar position
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*
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@ -1434,11 +1466,7 @@ static LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT message, WPARAM wParam,
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* (corresponding to the 76 different positions of the window on
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* the text), and info->nPage=25.
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*/
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INT WINAPI SetScrollInfo(
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HWND hwnd /* [in] Handle of window whose scrollbar will be affected */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
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const SCROLLINFO *info /* [in] Specifies what to change and new values */,
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BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */)
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INT WINAPI SetScrollInfo(HWND hwnd, INT nBar, const SCROLLINFO *info, BOOL bRedraw)
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{
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TRACE("hwnd=%p nBar=%d info=%p, bRedraw=%d\n", hwnd, nBar, info, bRedraw);
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@ -1602,12 +1630,14 @@ done:
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* GetScrollInfo can be used to retrieve the position, upper bound,
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* lower bound, and page size of a scrollbar control.
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* info [IO] fMask specifies which values to retrieve
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*
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* RETURNS STD
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*/
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BOOL WINAPI GetScrollInfo(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
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LPSCROLLINFO info /* [in/out] (fMask specifies which values to retrieve) */)
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BOOL WINAPI GetScrollInfo(HWND hwnd, INT nBar, LPSCROLLINFO info)
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{
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TRACE("hwnd=%p nBar=%d info=%p\n", hwnd, nBar, info);
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@ -1624,6 +1654,12 @@ LPSCROLLINFO info /* [in/out] (fMask specifies which values to retrieve) */)
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/*************************************************************************
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* SetScrollPos (USER32.@)
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* nPos [I] New value
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* bRedraw [I] Should scrollbar be redrawn afterwards?
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*
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* RETURNS
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* Success: Scrollbar position
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* Failure: 0
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@ -1632,11 +1668,7 @@ LPSCROLLINFO info /* [in/out] (fMask specifies which values to retrieve) */)
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* Note the ambiguity when 0 is returned. Use GetLastError
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* to make sure there was an error (and to know which one).
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*/
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INT WINAPI SetScrollPos(
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HWND hwnd /* [in] Handle of window whose scrollbar will be affected */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
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INT nPos /* [in] New value */,
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BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */ )
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INT WINAPI SetScrollPos( HWND hwnd, INT nBar, INT nPos, BOOL bRedraw)
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{
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SCROLLINFO info;
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SCROLLBAR_INFO *infoPtr;
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@ -1655,6 +1687,10 @@ BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */ )
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/*************************************************************************
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* GetScrollPos (USER32.@)
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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*
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* RETURNS
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* Success: Current position
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* Failure: 0
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@ -1663,9 +1699,7 @@ BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */ )
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* There is ambiguity when 0 is returned. Use GetLastError
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* to make sure there was an error (and to know which one).
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*/
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INT WINAPI GetScrollPos(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */)
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INT WINAPI GetScrollPos(HWND hwnd, INT nBar)
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{
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TRACE("hwnd=%p nBar=%d\n", hwnd, nBar);
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@ -1680,14 +1714,16 @@ INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */)
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/*************************************************************************
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* SetScrollRange (USER32.@)
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* minVal [I] New minimum value
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* maxVal [I] New Maximum value
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* bRedraw [I] Should scrollbar be redrawn afterwards?
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*
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* RETURNS STD
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*/
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BOOL WINAPI SetScrollRange(
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HWND hwnd, /* [in] Handle of window whose scrollbar will be affected */
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INT nBar, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
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INT minVal, /* [in] New minimum value */
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INT maxVal, /* [in] New maximum value */
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BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */)
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BOOL WINAPI SetScrollRange(HWND hwnd, INT nBar, INT minVal, INT maxVal, BOOL bRedraw)
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{
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SCROLLINFO info;
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@ -1731,13 +1767,15 @@ INT SCROLL_SetNCSbState(HWND hwnd, int vMin, int vMax, int vPos,
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/*************************************************************************
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* GetScrollRange (USER32.@)
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* lpMin [O] Where to store minimum value
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* lpMax [O] Where to store maximum value
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*
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* RETURNS STD
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*/
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BOOL WINAPI GetScrollRange(
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HWND hwnd /* [in] Handle of window with scrollbar(s) */,
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INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
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LPINT lpMin /* [out] Where to store minimum value */,
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LPINT lpMax /* [out] Where to store maximum value */)
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BOOL WINAPI GetScrollRange(HWND hwnd, INT nBar, LPINT lpMin, LPINT lpMax)
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{
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TRACE("hwnd=%p nBar=%d lpMin=%p lpMax=%p\n", hwnd, nBar, lpMin, lpMax);
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@ -1820,12 +1858,14 @@ BOOL SCROLL_ShowScrollBar( HWND hwnd, INT nBar,
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/*************************************************************************
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* ShowScrollBar (USER32.@)
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*
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* PARAMS
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* hwnd [I] Handle of window with scrollbar(s)
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* nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL
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* fShow [I] TRUE = show, FALSE = hide
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*
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* RETURNS STD
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*/
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BOOL WINAPI ShowScrollBar(
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HWND hwnd, /* [in] Handle of window whose scrollbar(s) will be affected */
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INT nBar, /* [in] One of SB_HORZ, SB_VERT, SB_BOTH or SB_CTL */
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BOOL fShow /* [in] TRUE = show, FALSE = hide */)
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BOOL WINAPI ShowScrollBar(HWND hwnd, INT nBar, BOOL fShow)
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{
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SCROLL_ShowScrollBar( hwnd, nBar, (nBar == SB_VERT) ? 0 : fShow,
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(nBar == SB_HORZ) ? 0 : fShow );
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