winprop.c File Reference

#include "precomp.h"

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Functions
BOOL	InternalSetProp (PWND pwnd, LPWSTR pszKey, HANDLE hData, DWORD dwFlags)
HANDLE	InternalRemoveProp (PWND pwnd, LPWSTR pszKey, BOOL fInternal)
NTSTATUS	_BuildPropList (PWND pwnd, PROPSET aPropSet[], UINT cPropMax, PUINT pcPropNeeded)
PPROP	CreateProp (PWND pwnd)
void	DeleteProperties (PWND pwnd)

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Function Documentation

NTSTATUS _BuildPropList (  PWND  pwnd, PROPSET  aPropSet[], UINT  cPropMax, PUINT  pcPropNeeded )

Definition at line 141 of file kernel/winprop.c. References tagPROPLIST::aprop, _PROPSET::atom, tagPROP::atomKey, DWORD, tagPROP::fs, tagPROP::hData, _PROPSET::hData, tagPROPLIST::iFirstFree, NTSTATUS(), NULL, tagWND::ppropList, PROPF_INTERNAL, Status, and UINT. Referenced by NtUserBuildPropList(). { UINT i; PPROPLIST ppropList; PPROP pProp; DWORD iRetCnt = 0; // The number of Props returned DWORD iProp = 0; PPROPSET pPropSetLast = (aPropSet + cPropMax - 1); NTSTATUS Status; /* * If the Window does not have a property list then we're done */ ppropList = pwnd->ppropList; if (ppropList == NULL) { *pcPropNeeded = 0; return STATUS_SUCCESS; } /* * For each element in the property list enumerate it. * (only if it is not internal!) */ Status = STATUS_SUCCESS; pProp = ppropList->aprop; for (i = ppropList->iFirstFree; i > 0; i--) { /* * if we run out of space in shared memory return * STATUS_BUFFER_TOO_SMALL */ if (&aPropSet[iProp] > pPropSetLast) { /* * Reset to the beginning of the output * buffer so we can continue and compute * the needed space. */ iProp = 0; Status = STATUS_BUFFER_TOO_SMALL; } if (!(pProp->fs & PROPF_INTERNAL)) { aPropSet[iProp].hData = pProp->hData; aPropSet[iProp].atom = pProp->atomKey; iProp++; iRetCnt++; } pProp++; } /* * Return the number of PROPLISTs given back to the client */ *pcPropNeeded = iRetCnt; return Status; }

PPROP CreateProp (  PWND  pwnd  )

Definition at line 217 of file kernel/winprop.c. References tagPROPLIST::aprop, tagPROPLIST::cEntries, DesktopAlloc(), DesktopFree, DTAG_PROPLIST, tagWND::head, tagPROPLIST::iFirstFree, NULL, tagWND::ppropList, PROP, and PROPLIST. Referenced by InternalSetProp(). { PPROPLIST ppropList; PPROP pprop; if (pwnd->ppropList == NULL) { pwnd->ppropList = (PPROPLIST)DesktopAlloc(pwnd->head.rpdesk, sizeof(PROPLIST), DTAG_PROPLIST); if (pwnd->ppropList == NULL) { return NULL; } pwnd->ppropList->cEntries = 1; } else if (pwnd->ppropList->iFirstFree == pwnd->ppropList->cEntries) { ppropList = (PPROPLIST)DesktopAlloc(pwnd->head.rpdesk, sizeof(PROPLIST) + pwnd->ppropList->cEntries * sizeof(PROP), DTAG_PROPLIST); if (ppropList == NULL) { return NULL; } RtlCopyMemory(ppropList, pwnd->ppropList, sizeof(PROPLIST) + (pwnd->ppropList->cEntries - 1) * sizeof(PROP)); DesktopFree(pwnd->head.rpdesk, pwnd->ppropList); pwnd->ppropList = ppropList; pwnd->ppropList->cEntries++; } pprop = &pwnd->ppropList->aprop[pwnd->ppropList->iFirstFree]; pwnd->ppropList->iFirstFree++; return pprop; }

void DeleteProperties (  PWND  pwnd  )

Definition at line 265 of file kernel/winprop.c. References tagPROPLIST::aprop, DesktopFree, tagPROP::fs, tagPROP::hData, tagWND::head, tagPROPLIST::iFirstFree, NULL, tagWND::ppropList, PROPF_INTERNAL, PROPF_NOPOOL, and UINT. Referenced by xxxFreeWindow(). { PPROP pprop; UINT i; UserAssert(pwnd->ppropList); /* * Loop through the whole list of properties on this window. */ pprop = pwnd->ppropList->aprop; for (i = pwnd->ppropList->iFirstFree; i > 0; i--) { /* * Is this an internal property? If so, free any data we allocated * for it. */ if ((pprop->fs & PROPF_INTERNAL) && !(pprop->fs & PROPF_NOPOOL)) { UserFreePool(pprop->hData); } /* * Advance to the next property in the list. */ pprop++; } /* * All properties gone, free the property list and clear out the * window's property list pointer. */ DesktopFree(pwnd->head.rpdesk, pwnd->ppropList); pwnd->ppropList = NULL; }

HANDLE InternalRemoveProp (  PWND  pwnd, LPWSTR  pszKey, BOOL  fInternal )

Definition at line 98 of file kernel/winprop.c. References _FindProp(), tagPROPLIST::aprop, tagPROP::hData, tagPROPLIST::iFirstFree, NULL, and tagWND::ppropList. Referenced by _DdeSetQualityOfService(), _SetWindowContextHelpId(), DestroyWindowSmIcon(), MESSAGECALL(), NtUserRemoveProp(), RemoveRedirectionBitmap(), UnlinkConv(), UserAssociateHwnd(), and xxxFreeWindow(). { PPROP pprop; PPROP ppropLast; HANDLE hT; /* * Find the property to be removed. */ pprop = _FindProp(pwnd, pszKey, fInternal); if (pprop == NULL) return NULL; /* * Remember what it was pointing at. */ hT = pprop->hData; /* * Move the property at the end of the list into this slot. */ pwnd->ppropList->iFirstFree--; ppropLast = &pwnd->ppropList->aprop[pwnd->ppropList->iFirstFree]; *pprop = *ppropLast; RtlZeroMemory(ppropLast, sizeof(*ppropLast)); return hT; }

BOOL InternalSetProp (  PWND  pwnd, LPWSTR  pszKey, HANDLE  hData, DWORD  dwFlags )

Definition at line 39 of file kernel/winprop.c. References _FindProp(), tagPROP::atomKey, BOOL, CreateProp(), dwFlags, FALSE, tagPROP::fs, tagPROP::hData, IS_PTR, NULL, PROPF_INTERNAL, PTR_TO_ID, and TRUE. Referenced by _DdeSetQualityOfService(), _SetWindowContextHelpId(), AddConvProp(), CkptRestore(), CreateRedirectionBitmap(), MESSAGECALL(), NtUserSetAppImeLevel(), NtUserSetProp(), UnlinkConv(), UserAssociateHwnd(), xxxCreateWindowSmIcon(), and xxxDWP_SetIcon(). { PPROP pprop; if (pszKey == NULL) { RIPERR0(ERROR_INVALID_PARAMETER, RIP_WARNING, "Invalid parameter \"pszKey\" (NULL) to InternalSetProp"); return FALSE; } /* * If no property list exists for this window, create one. */ pprop = _FindProp(pwnd, pszKey, dwFlags & PROPF_INTERNAL); if (pprop == NULL) { /* * pszKey must be an atom within the server. */ UserAssert(!IS_PTR(pszKey)); /* * CreateProp allocates the property and links it into the window's * property list. */ pprop = CreateProp(pwnd); if (pprop == NULL) return FALSE; pprop->atomKey = PTR_TO_ID(pszKey); pprop->fs = (WORD)dwFlags; } pprop->hData = hData; return TRUE; }

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