26 Apr
2007
26 Apr
'07
12:37 a.m.
Author: jimtabor
Date: Thu Apr 26 04:37:09 2007
New Revision: 26509
URL: http://svn.reactos.org/svn/reactos?rev=26509&view=rev
Log:
GetObject:
Don't mix Apples and Oranges!
- Reorder A/W structure handling for ColorSpace.
- Pointed out the default size to be sent to NtGdiExtGetObjectW.
Modified:
trunk/reactos/dll/win32/gdi32/objects/dc.c
Modified: trunk/reactos/dll/win32/gdi32/objects/dc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/dc…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/dc.c (original)
+++ trunk/reactos/dll/win32/gdi32/objects/dc.c Thu Apr 26 04:37:09 2007
@@ -168,10 +168,27 @@
if(lpwszOutput)
RtlInitUnicodeString(&Driver, lpwszOutput);
- return NtGdiCreateDC((lpwszDriver ? &Driver : NULL),
+ HDC hDC = NtGdiCreateDC((lpwszDriver ? &Driver : NULL),
(lpwszDevice ? &Device : NULL),
(lpwszOutput ? &Output : NULL),
(PDEVMODEW)lpInitData);
+/* DC_ATTR Tests.
+ if (GDI_HANDLE_GET_TYPE(hDC) == GDI_OBJECT_TYPE_DC)
+ {
+ PDC_ATTR Dc_Attr;
+
+ GdiGetHandleUserData((HGDIOBJ) hDC, (PVOID) &Dc_Attr);
+ DPRINT1("Test DC_ATTR -> ! 0x%x\n", Dc_Attr);
+
+ DPRINT1("Test DC_ATTR access! 0x%x\n", Dc_Attr->pvLDC);
+ Dc_Attr->pvLDC = (PVOID)1;
+ DPRINT1("Test DC_ATTR access! 0x%x\n", Dc_Attr->pvLDC);
+ Dc_Attr->pvLDC = (PVOID)0;
+ DPRINT1("Test DC_ATTR access! 0x%x\n", Dc_Attr->pvLDC);
+
+ }
+ */
+ return hDC;
}
@@ -405,20 +422,16 @@
case GDI_OBJECT_TYPE_REGION:
case GDI_OBJECT_TYPE_METAFILE:
case GDI_OBJECT_TYPE_ENHMETAFILE:
- case GDI_OBJECT_TYPE_EMF:
+ case GDI_OBJECT_TYPE_EMF:
+ case GDI_OBJECT_TYPE_METADC:
SetLastError(ERROR_INVALID_HANDLE);
return 0;
- case GDI_OBJECT_TYPE_COLORSPACE:
- SetLastError(ERROR_NOT_SUPPORTED);
- return 0;
-
- case GDI_OBJECT_TYPE_PEN:
- case GDI_OBJECT_TYPE_BRUSH:
+ case GDI_OBJECT_TYPE_PEN: //Check the structures and see if A & W are the same.
+ case GDI_OBJECT_TYPE_BRUSH: // Mixing Apples and Oranges?
case GDI_OBJECT_TYPE_BITMAP:
case GDI_OBJECT_TYPE_PALETTE:
- case GDI_OBJECT_TYPE_METADC:
- if (!lpBuffer)
+ if (!lpBuffer) // Should pass it all to Win32k and let god sort it out. ;^)
{
switch(dwType)
{
@@ -430,12 +443,6 @@
return sizeof(BITMAP);
case GDI_OBJECT_TYPE_PALETTE:
return sizeof(WORD);
- case GDI_OBJECT_TYPE_METADC:
- /* Windows does not SetLastError() in this case, more investigation needed
*/
- return 0;
- case GDI_OBJECT_TYPE_COLORSPACE: /* yes, windows acts like this */
- SetLastError(ERROR_INSUFFICIENT_BUFFER);
- return 60; // FIXME: what structure is this? */
case GDI_OBJECT_TYPE_EXTPEN: /* we don't know the size, ask win32k */
break;
default:
@@ -443,7 +450,7 @@
return 0;
}
}
- //Handle = GdiFixUpHandle(hGdiObj); new system is not ready
+ hGdiObj = (HANDLE)GdiFixUpHandle(hGdiObj);
return NtGdiExtGetObjectW(hGdiObj, cbSize, lpBuffer);
}
return 0;
@@ -457,13 +464,17 @@
STDCALL
GetObjectA(HGDIOBJ hGdiObj, int cbSize, LPVOID lpBuffer)
{
- EXTLOGFONTW ExtLogFontW;
- LOGFONTA LogFontA;
-
+ ENUMLOGFONTEXDVW LogFont;
DWORD dwType;
- int Result = 0;
+ INT Result = 0;
dwType = GDI_HANDLE_GET_TYPE(hGdiObj);;
+
+ if(dwType == GDI_OBJECT_TYPE_COLORSPACE) //Stays here, processes struct A
+ {
+ SetLastError(ERROR_NOT_SUPPORTED);
+ return 0;
+ }
if (dwType == GDI_OBJECT_TYPE_FONT)
{
@@ -476,25 +487,35 @@
/* Windows does not SetLastError() */
return 0;
}
- Result = NtGdiExtGetObjectW(hGdiObj, sizeof(EXTLOGFONTW), &ExtLogFontW);
+ // ENUMLOGFONTEXDVW is the default size and should be the structure for
+ // Entry->KernelData for Font objects.
+ Result = NtGdiExtGetObjectW(hGdiObj, sizeof(ENUMLOGFONTEXDVW), &LogFont);
+
if (0 == Result)
{
return 0;
}
- LogFontW2A(&LogFontA, &ExtLogFontW.elfLogFont);
-
- /* FIXME: windows writes up to 260 bytes */
- /* What structure is that? */
- if ((UINT)cbSize > 260)
- {
- cbSize = 260;
- }
- memcpy(lpBuffer, &LogFontA, cbSize);
-/*
- During testing of font objects, I passed ENUM/EXT/LOGFONT/EX/W to
NtGdiExtGetObjectW.
- I think it likes EXTLOGFONTW. So,,, How do we handle the rest when a
- caller wants to use E/E/L/E/A structures. Check for size? More research~
- */
+
+ switch (cbSize)
+ {
+ case sizeof(ENUMLOGFONTEXDVA):
+ // need to move more here.
+ case sizeof(ENUMLOGFONTEXA):
+ EnumLogFontExW2A( (LPENUMLOGFONTEXA) lpBuffer, &LogFont.elfEnumLogfontEx
);
+ break;
+
+ case sizeof(ENUMLOGFONTA):
+ // Same here, maybe? Check the structures.
+ case sizeof(EXTLOGFONTA):
+ // Same here
+ case sizeof(LOGFONTA):
+ LogFontW2A((LPLOGFONTA) lpBuffer, &LogFont.elfEnumLogfontEx.elfLogFont);
+ break;
+
+ default:
+ SetLastError(ERROR_BUFFER_OVERFLOW);
+ return 0;
+ }
return cbSize;
}
@@ -510,8 +531,7 @@
GetObjectW(HGDIOBJ hGdiObj, int cbSize, LPVOID lpBuffer)
{
DWORD dwType = GDI_HANDLE_GET_TYPE(hGdiObj);
- EXTLOGFONTW ExtLogFontW;
- int Result = 0;
+ INT Result = 0;
/*
Check List:
@@ -519,6 +539,11 @@
a font, a palette, a pen, or a device independent bitmap created by calling
the CreateDIBSection function."
*/
+ if(dwType == GDI_OBJECT_TYPE_COLORSPACE) //Stays here, processes struct W
+ {
+ SetLastError(ERROR_NOT_SUPPORTED); // Not supported yet.
+ return 0;
+ }
if (dwType == GDI_OBJECT_TYPE_FONT)
{
@@ -526,24 +551,22 @@
{
return sizeof(LOGFONTW);
}
+
if (cbSize == 0)
{
/* Windows does not SetLastError() */
return 0;
}
- Result = NtGdiExtGetObjectW(hGdiObj, sizeof(EXTLOGFONTW), &ExtLogFontW);
+ // Poorly written apps are not ReactOS problem!
+ // We fix it here if the size is larger than the default size.
+ if( cbSize > sizeof(ENUMLOGFONTEXDVW) ) cbSize = sizeof(ENUMLOGFONTEXDVW);
+
+ Result = NtGdiExtGetObjectW(hGdiObj, cbSize, lpBuffer); // Should handle the copy.
+
if (0 == Result)
{
return 0;
}
- /* FIXME: windows writes up to 356 bytes */
- /* What structure is that? */
- if ((UINT)cbSize > 356)
- {
- /* windows seems to delete the font in this case, more investigation needed */
- cbSize = 356;
- }
- memcpy(lpBuffer, &ExtLogFontW.elfLogFont, cbSize);
return cbSize;
}