dcattr.c File Reference

#include <win32k.h>
#include <debug.h>

Include dependency graph for dcattr.c:

Go to the source code of this file.

Classes
struct	_GDI_DC_ATTR_FREELIST
struct	_GDI_DC_ATTR_ENTRY

Macros
#define	NDEBUG
#define	GDIDCATTRFREE   8

Typedefs
typedef struct _GDI_DC_ATTR_FREELIST	GDI_DC_ATTR_FREELIST
typedef struct _GDI_DC_ATTR_FREELIST *	PGDI_DC_ATTR_FREELIST
typedef struct _GDI_DC_ATTR_ENTRY	GDI_DC_ATTR_ENTRY
typedef struct _GDI_DC_ATTR_ENTRY *	PGDI_DC_ATTR_ENTRY

Functions
BOOL NTAPI	DC_bAllocDcAttr (PDC pdc)
VOID NTAPI	DC_vFreeDcAttr (PDC pdc)

Macro Definition Documentation

GDIDCATTRFREE

#define GDIDCATTRFREE   8

Definition at line 14 of file dcattr.c.

NDEBUG

#define NDEBUG

Definition at line 11 of file dcattr.c.

Typedef Documentation

GDI_DC_ATTR_ENTRY

typedef struct _GDI_DC_ATTR_ENTRY GDI_DC_ATTR_ENTRY

GDI_DC_ATTR_FREELIST

typedef struct _GDI_DC_ATTR_FREELIST GDI_DC_ATTR_FREELIST

PGDI_DC_ATTR_ENTRY

typedef struct _GDI_DC_ATTR_ENTRY * PGDI_DC_ATTR_ENTRY

PGDI_DC_ATTR_FREELIST

typedef struct _GDI_DC_ATTR_FREELIST * PGDI_DC_ATTR_FREELIST

Function Documentation

DC_bAllocDcAttr()

BOOL NTAPI DC_bAllocDcAttr

(

PDC

pdc

)

Definition at line 31 of file dcattr.c.

{
    PPROCESSINFO ppi;
    PDC_ATTR pdcattr;
 
    ppi = PsGetCurrentProcessWin32Process();
    ASSERT(ppi);
 
    pdcattr = GdiPoolAllocate(ppi->pPoolDcAttr);
    if (!pdcattr)
    {
        DPRINT1("Could not allocate DC attr\n");
        return FALSE;
    }
 
    /* Copy the content from the kernel mode dc attr */
    pdc->pdcattr = pdcattr;
    *pdc->pdcattr = pdc->dcattr;
 
    /* Set the object attribute in the handle table */
    GDIOBJ_vSetObjectAttr(&pdc->BaseObject, pdcattr);
 
    DPRINT("DC_AllocDcAttr: pdc=%p, pdc->pdcattr=%p\n", pdc, pdc->pdcattr);
    return TRUE;
}

Referenced by DC_vSetOwner(), GreCreateCompatibleDC(), and GreOpenDCW().

DC_vFreeDcAttr()

VOID NTAPI DC_vFreeDcAttr

(

PDC

pdc

)

Definition at line 59 of file dcattr.c.

{
    PPROCESSINFO ppi;
 
    if (pdc->pdcattr == &pdc->dcattr)
    {
        // Internal DC object!
        return;
    }
 
    /* Reset the object attribute in the handle table */
    GDIOBJ_vSetObjectAttr(&pdc->BaseObject, NULL);
 
    ppi = PsGetCurrentProcessWin32Process();
    ASSERT(ppi);
    GdiPoolFree(ppi->pPoolDcAttr, pdc->pdcattr);
 
    /* Reset to kmode dcattr */
    pdc->pdcattr = &pdc->dcattr;
}

Referenced by DC_vCleanup(), and DC_vSetOwner().